Submittals shall be transmitted with a Submittal Cover Letter form as approved by the Engineer. Large submittals consisting of reports, oversized or colored pages, full sized shop drawings, manuals contained in binders, or submittals in other forms not easily reproduced shall be provided in hard copy format with six (6) copies.
For items requiring shop drawings, no materials shall be furnished, and no work shall be performed, until the drawings have been favorably reviewed. Shop drawings shall be of a size and scale to clearly show all necessary details.
After review by the City of each of the Contractor's submittals, the material will be returned to the Contractor marked with actions defined as follows.
(a) NO EXCEPTIONS TAKEN – Accepted subject to its compatibility with future submissions and additional partial submissions for portions of the work not covered in this submission.
Does not constitute acceptance of deletion of specified or required items not shown in a partial submission.
(b) MAKE CORRECTIONS NOTED – The same as item (a), except that minor corrections as noted by the City shall be made by the Contractor. No resubmission is required. (c) REVISE AND RESUBMIT – Rejected because of major inconsistencies or errors which shall be resolved or corrected by the Contractor prior to subsequent review by the City. (d) REJECTED – Submitted material does not conform to plans and Specifications in major respects. This material is not expected to be resubmitted. (e) SUBMIT SPECIFIED ITEM – Submittals not reviewed by the City but received for record purposes.
Favorable review of the shop drawings by the Engineer is interpreted to mean that there is substantial and acceptable conformance with the contract plans, but details of design may not necessarily be checked for adequacy or accuracy. Such acceptance shall not relieve the Contractor from the responsibility for errors or omissions in the shop drawings or from deviations from the contract documents unless such errors, omissions, or deviations were specifically called to the attention of the Engineer in writing. The Contractor shall be responsible for the correctness of the shop drawings, for shop fits and field corrections, and for the results obtained by the use of such plans.
4.20 Substitutions – Proposed requests by the Contractor for changes in products, materials, equipment, and methods of construction required under the Contract Documents after the award of contract are considered "requests for substitutions.” For proposed “or equal” substitutions, attention is directed to General Provision Section 6.03, “Trade Names or Equals.” Each request for substitution shall be prepared and presented to the City in accordance with the procedures for submittals, except that the following additional information shall be provided. (a) An explanation of the advantages to the City for accepting the substitution. (b) A comparison of significant qualities of the proposed substitution with those specified.
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(c) A list of changes or modifications needed to other parts of the work and to construction performed by the City and separate Contractors, that will be necessary to accommodate the proposed substitution.
(d) A statement indicating the substitution's effect on the Construction Schedule compared to the Baseline Construction Schedule without acceptance of the substitution. Indicate the effect of the proposed substitution on overall contract time. (e) Cost information, including a proposal of the net change, if any, in the Contract Sum. (f) Certification that the substitution is equal to or better in every respect to that required by Contract Documents, and that it will perform adequately in application indicated. Include Contractor's waiver of rights to additional payment or time extensions, that may be necessary because of the substitution's failure to perform adequately.
No extension of time will be allowed through failure of the Contractor to either transmit requests for substitution sufficiently in advance of the work, or on account of processing time outside the time limits noted.
4.21 Construction Staking Lines and Grades – Unless otherwise stated in the Special Provisions, the Contractor shall provide, preserve, and replace if necessary, all of the necessary construction stakes required for the construction of the project. Grades for underground conduits will be set on the ground surface and shall then be transferred to the bottom of the trench by the Contractor.
Stakes or marks will be set by a California Licensed Surveyor or a California Registered Civil Engineer to establish the lines and grades required for the completion of the work as specified in the Contract Documents. It shall be the Contractor's responsibility to notify the Engineer of any discrepancies found between field grades and notes shown within the Contract Documents.
Contractor shall furnish horizontal control and cut sheets to the Engineer immediately upon the setting of construction or boundary markers. Upon completion, all work shall conform to the lines, elevations, and grades shown on the plans.
4.22 Inspection of the Work – All work is subject to inspection and approval of the Engineer.
Unless otherwise stated in the specifications, the City shall perform all required inspections. The Contractor shall notify the Engineer before noon of the working day before inspection is required. Unless otherwise authorized, work shall be done only in the presence of the Engineer. Any work done without proper inspection will be subject to rejection. The Engineer shall at all times have access to the work during its construction at shops and yards as well as the project site. The Contractor shall provide every reasonable facility for ascertaining that the materials and workmanship are in accordance with the Contract Documents.
Inspection of the work shall not relieve the Contractor of the obligation to fulfill all conditions of the contract.
If a portion of the work is covered contrary to the Engineer’s request or direction, or contrary to the requirements of the Contract Documents, it must, if required in writing by the Engineer, be uncovered for the Engineer’s observation and be replaced at Contractor’s expense without adjustment of the contract time or the contract sum.
If a portion of the work has been covered, which is not required by the Contract Documents to be observed or inspected prior to it’s being covered and which the Engineer has not specifically requested to observe prior to it’s being covered, the Engineer may request to see such work and it shall be uncovered and replaced by Contractor. If such work is in accordance with the Contract Documents, the costs of uncovering and replacing the work shall be added to the contract sum by change order; and if the uncovering and replacing of the work extends the contract time, an appropriate adjustment of the contract time shall be made by change order. If such work is not in accordance with the Contract Documents, the Contractor shall pay such costs and shall not be entitled to an adjustment of the contract time or the contract sum.
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Regular working hours for City Construction Inspectors are between 7:30 a.m. and 4:00 p.m., Monday through Friday, excluding City holidays. If the Contractor works outside these times, the Contractor may be charged for additional inspection. Inspection by the Engineer or by a City inspector, or any order measurement, approved modifications, certificate or payment of money, or acceptance of any part of whole of the work, or any extension of time, or any possession by the City or its agents, shall not operate as a waiver for any provision of this contract or of any power reserved therein to the City, or any right to damage thereunder; no breach of this contract shall be held to a waiver of any or subsequent breach. All remedies shall be taken and construed as cumulative.
4.23 Testing – Unless otherwise stated in the Contract Documents, all required testing will be performed directly by an independent laboratory coordinated and paid for by the Contractor. The Contractor shall submit the resulting certified test results and Certificates of Compliance for all materials requiring such as specified in the Technical Provision. Contractor shall cooperate with the City in coordinating the necessary testing. The coordination of testing, including the number and location of tests, shall be under the direction of the Engineer. All compaction test sites deeper than five (5’) feet below grade shall be properly shored by the Contractor to protect testing personnel.
The cost for performing re-tests due to failures, or additional call-outs if work is not ready to test, will be charged to the Contractor. The City shall require retesting until all required tests are successfully passed.
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SECTION 5 – CHANGES IN WORK
5.01 Limited City Authority to Approve Change Orders – The Contractor recognizes that the City is a public agency and that it can only act through its duly authorized agents. In this regard, the Contractor agrees that only written change orders, executed by the governing body of the City, shall be valid. The Engineer shall have no authority to issue a change order unless so specifically authorized, and no person shall have authority to issue any oral change order.
5.02 Contractor Liability for Unapproved Change Orders – Unless a valid change order is issued, all changes in the work performed by the Contractor shall be at the Contractor’s own risk, and shall not be entitled to any additional compensation. Furthermore, the Contractor may be required to make the work conform to the plans and specifications. No act or series of acts by the City during the course of the contract shall be deemed to constitute a waiver of the City’s right to rely upon the provisions of this Section 5, “Changes in Work”.
5.03 Non-Material Change Requests by the Contractor – Changes in the plans and specifications requested in writing by the Contractor, which do not materially affect the work and which are not detrimental to the work or to the interests of the City, may be granted to facilitate the work, when approved in writing by the Engineer. If such changes are granted, they shall be made at a reduction in cost or at no additional cost to the City. Nothing herein shall be construed as granting a right to the Contractor to demand acceptance of such changes or to increase the contract sum or contract time as a result of the proposed change.
5.04 Effect of Extension of Time – The granting of any extension of time due to delays which, in the judgment of the City, are unavoidable delays shall in no way operate as a waiver on the part of the City of its rights under this contract.
5.05 Letters of Instruction – The Engineer may issue letters of instruction in the form of Field Orders, Clarifications, responses to Requests for Information, or any other document which makes interpretations or clarifications to the Contract Documents that do not modify the scope of work or involve an adjustment in the contract sum or contract time. Letters of Instruction shall be binding upon the Contractor, and the Contractor shall promptly carry out the requirements of such Letters of Instruction.
5.06 Requests for Information, Inconsistencies and Changed Conditions – Before undertaking each part of the work, the Contractor shall carefully study all pertinent figures shown in the Contract Documents and verify that all applicable field measurements are free of conflicts, errors, discrepancies, inconsistencies and omissions. If such conditions are discovered, the Contractor shall notify the Engineer by writing a Request for Information, and await direction from the Engineer before proceeding.
If the Contractor encounters a changed condition, as defined by one or more of the conditions below, the Contractor shall notify the Engineer by writing a Request for Information before disturbing the condition further.
(a) Material differing from that represented in the Contract which the Contractor believes may be hazardous waste, as defined by Health and Safety Code, Section 25117 that is required to be removed to a Class I, Class II, or Class III disposal site in accordance with provision of existing law; and
(b) Subsurface or latent physical conditions at the site differing materially from those represented in the Contract Documents; and
(c) Unknown physical conditions at the site of any unusual nature, which differ materially from those ordinarily encountered and generally recognized as inherent in the work and of the character provided for in the Contract Documents.
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No extension of Contract time shall be made by the City due to the Contractor’s failure to provide a timely written notice of any inconsistency or changed condition requiring direction. The Engineer will respond to the Contractor’s Request for Information within three working days, providing an interpretation, clarification or change order for an appropriate adjustment in contract time and cost pursuant to General Provisions, Section 5.07, and “Change Orders”. Contractor shall wait for the Engineer’s written response to a Request for Information before proceeding with any work.
The Contractor shall not be liable to the City for failure to report any conflict, error, or discrepancy in the Contract Documents, unless the Contractor had actual knowledge or could foresee such conditions as may be discovered by a reasonable examination of the work site or materials. If the Contractor performs any construction activity in which he knows or should know involves an error, inconsistency, ambiguity, or omission referred to in this Section, without notifying and obtaining the written consent of the Engineer, Contractor shall be responsible for the resultant costs, including, without limitation, the costs of correcting defective work. However, in an emergency affecting the safety of persons or property, the Contractor shall take all reasonably necessary precautions to prevent or minimize damage, injury, or loss.
5.07 Extra and Omitted Work – Whenever corrections, alterations or modifications of the work under this contract are ordered and approved by the Engineer and increase the amount of work to be done, such added work shall be known as Extra Work. When such corrections, alterations or modifications decrease the amount of work to be done, such deleted work shall be known as Omitted Work. The General and Special Provisions shall apply with equal force to all extra and omitted work.
When the Contractor considers that any changes ordered involve extra or omitted work, Contractor shall immediately notify the Engineer in writing and subsequently keep them informed as to when and where the alleged extra work is to be performed.
When extra work reports are agreed upon and signed by both parties, they shall become the basis of payment. When extra work is still under negotiation or has not been agreed upon, the Contractor shall keep daily detailed and accurate records itemizing each element of cost and shall provide certified payroll, invoices, and other substantiating records and documentation with records and/or claims for compensation to be provided no later than 30 days following the time in which the work claiming to be extra was performed.
Unless notification of extra work is documented, and unless a complete statement of materials used and expenses incurred is furnished by the Contractor, the Contractor shall not be entitled to payment of such alleged extra work, and any future claims for compensation will be invalid.
Payment for extra work shall be in accordance with General Provisions, Section 5.08 - “Change Orders”. Omitted work shall not constitute a claim for damages on account of anticipated profits on the work that may be omitted.
5.08 Change Orders – At any time during the progress of the work, and without in any way rendering void the Agreement, the City may order alterations, additions or deductions from the work by change order, without notice to sureties. When so ordered in writing, the Contractor shall proceed with work as directed by the change order.
The change order shall describe the change in the work, the adjustment of the contract sum (if any), and the adjustment of the contract time (if any). The Contractor shall not be entitled to any extension of time for the completion of the work by virtue of any change order unless the change order specifically provides for this. If, after receiving a change order, the Contractor requests an extension of time, within five (5) working days the Contractor must file a written claim to that effect for consideration by the Engineer.
The process of submitting a proposed change, a cost proposal, or negotiating an agreed upon change order, or any failure to reach an agreement as to an adjustment in the contract sum or the contract time, shall not relieve the Contractor of the obligation to perform in accordance with the Contract Documents.
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A change order may be in the form of a City directed change order or an agreed upon change order. Upon the receipt of either form of change order, the Contractor shall proceed promptly and diligently with the extra work.
(a) City Directed Change Orders – A City directed change order may be issued by the City without the Contractor’s signature where the City determines that it is in the City’s best interest to proceed with the work, and the change does not materially alter the character of the work. The Contractor shall be deemed to have accepted the terms of any City directed change order unless the Contractor asserts a claim with respect to the change order, no later than ten (10) working days following the Contractor’s receipt of the change order. See General Provisions, Section 5.09`, “Disputed Work”.
(b) Agreed Upon Change Orders – Within five (5) working days after receiving a request from the City for a written proposal for an agreed upon Change Order, the Contractor shall provide the Engineer with a cost proposal in a form satisfactory to the Engineer, setting forth the Contractor’s proposed adjustments to the contract sum and contract time for performing the extra work.
Compensation for agreed upon change orders shall be calculated based upon the unit prices stated in the Bid Schedule and no additional markup for overhead or profit will be provided unless stated otherwise as follows. If there are no unit prices for the extra work, the Contractor and the City may agree upon unit prices or lump sum costs, which shall be used to increase or decrease the contract sum. In the absence of any such agreement, the contract sum shall be adjusted by Force Account.
1. Quantity Adjustments – Unit prices shall govern not only for alterations to work covered by written specifications and drawings, but also for other work incidental or necessary to completing the work for which written specifications and drawings may be later prepared. Whenever an item of work or materials is specified in the contract by unit price and is increased or decreased by more than 25 percent (25%), Section 9-1.06 of the Standard Specifications shall govern payment. This Section allows for a renegotiation of the unit price based upon consideration of the total pay item cost. If, however, a renegotiated price cannot be reached by the Contractor and the City, then the payment for this item shall be adjusted by Force Account.
2. Agreed Upon Price – If there are no unit prices for proposed extra work, the Contractor and the City may agree upon unit prices or lump sum costs, by written change order, prior to commencing work. In the absence of any such agreement, the contract sum shall be adjusted by Force Account.
3. Force Account - When extra work is to be paid on a force account basis, the labor, materials and equipment used in the performance of that work shall be paid in accordance with the 2010 State Standard Specification, Section 9-1.04 “Force Account.” To the total of the direct costs computed, there can be an added markup of up to thirty-five percent (35%) to the cost of labor, up to fifteen percent (15%) to the cost of materials and up to fifteen percent (15%) to the cost of equipment.
These markups shall constitute full compensation for any and all overhead costs, profit, or other costs not specifically designated as a cost of labor, material or equipment. When Subcontractors perform force account work, an additional ten percent (10%) markup shall be added to the total cost of the extra work to reimburse the Contractor for additional administrative costs. No markup for any Subcontractor beyond the first tier shall be paid.
During the performance of extra work by Force Account, and as a condition to the Contractor’s right to an adjustment of the contract sum, the Contractor shall prepare daily reports itemizing all costs for labor, materials, and equipment rental
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and provide certified payrolls. For labor costs, the reports shall include names, job classifications, hours worked and rates of pay. For equipment costs, the reports shall include size, type, identification number and hours of operation. All records and reports shall be submitted to the Engineer for approval on a daily basis.
Reports shall be made on the State of California, Daily Extra Work Report Form or on a similar form approved by the Engineer.
i. Labor – Labor costs shall be based on the prevailing wage scale for each craft or type of workman, and no compensation shall be allowed for payment in excess of the prevailing wage. Employer payments for payroll taxes and insurance, health and welfare, pension, vacation, and other direct labor costs shall be included and will be calculated as the Labor Surcharge stipulated in the State of California, Labor Surcharge and Equipment Rental Rates book.
ii. Materials – Materials cost shall be the cost of all materials purchased by the Contractor and used in the extra work and shall be the actual cost of such materials, including sales taxes, freight and delivery charges. The City reserves the right to reject materials to be furnished by the Contractor, sources of supply or, if necessary, to furnish the materials to the Contractor. No compensation will be paid to the Contractor for any material furnished by the City or for materials not used. iii. Equipment Rental – The Contractor will be allowed the actual rental rate of equipment, prorated over the time the machinery or equipment is required. For Contractor owned equipment, this rate shall be as stipulated in the State of California, Labor Surcharge and Equipment Rental Rates book. In addition, the Contractor will be allowed reasonable move-in and move-out charges, if applicable. All equipment shall, in the opinion of the Engineer, be in good working order, good condition, and suitable for its purpose. Equipment or tools having a replacement value of $200.00 or less, whether or not consumed by use, shall be considered small tools and no payment will be made therefore.
iv. Other Services or Expenditures – The City may authorize and approve payment for work performed by special forces or necessary services and expenditures other than labor, materials, and equipment rental.
5.09 Disputed Work – When the Engineer and Contractor fail to agree as to whether an alteration ordered by the Engineer constitutes a material change or difference in the character of the work, or fail to agree upon the compensation to be allowed for such altered work, the Contractor shall proceed with the altered work and file with the Engineer, within ten (10) working days after receiving direction from the Engineer, a written protest detailing the particulars of the dispute and the amount of additional compensation or time required for the alteration. Failure of the Engineer to recognize a change in the character of work when ordering alterations shall in no way be construed as relieving the Contractor of the Contractor’s duty and responsibility for filing a protest as prescribed above. The City will not consider additional compensation for altered work unless the Contractor files a written protest within ten (10) working days after receiving direction from the Engineer.
If the Contractor has complied with the notification requirements of this sub-section, consideration of payment due shall be made as later determined through claim resolution procedures as set forth in General Provisions, Section 10, “Measurement and Payment”.
Although not to be considered as approval for proceeding under extra work provisions, the Contractor shall keep and furnish records of disputed work in accordance with General Provisions, Section 5.07, “Extra Work”.
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SECTION 6 - CONTROL OF MATERIALS
6.01 Materials and Workmanship – All materials, parts and equipment furnished by the Contractor in the work shall be new, high grade, and free from defects. Workmanship shall be in accordance with generally accepted standards. Materials and workmanship shall be subject to the Engineer’s approval.
Materials and workmanship not conforming to the requirements of these specifications shall be considered defective and will be subject to rejection. Defective work or material, whether in place or not, shall be removed immediately from the site at the Contractor’s, expense, when so directed by the Engineer.
If the Contractor fails to replace any defective or damaged work or material after notice from the Engineer, the Engineer may cause such work or materials to be replaced. The replacement expense shall be deducted from the amount to be paid to the Contractor.
Used or secondhand materials, parts and equipment are permissible only if permitted by the Special Provisions.
Specialized material or equipment to be used in the work that is not readily available from material suppliers (such as electroliers, luminaries, signal poles, heads, cable, controllers, pumps, etc.) shall be ordered within five (5) days after award of the contract. Time extensions will not be granted for project delays due to the unavailability of such specialized material and equipment unless the Contractor furnishes the Engineer with documentation of purchase order dates, acceptable reason for delay of delivery, or proof of diligent efforts to obtain said items from alternate sources.
The Contractor shall provide the Engineer with periodic reports to inform the Engineer of any changes in the projected material or equipment delivery dates.
6.02 Protection of Work and Materials – The Contractor shall provide and maintain storage facilities and employ such measures as will preserve the specified quality and fitness of materials to be used in the work. Stored materials shall be reasonably accessible for inspection. The Contractor shall also adequately protect new and existing work and equipment for the duration of the contract.
The Contractor shall not, without the City’s consent, assign, sell, mortgage, hypothecate, or remove equipment or materials which have been installed or delivered and which may be necessary for the completion of the contract.
6.03 Trade Names or Equals – In accordance with Public Contract Code Section 3400, whenever any particular material, process, or equipment is indicated by patent, proprietary or brand name, or by the name of a manufacturer or supplier, such wording is used for the purpose of facilitating its description and shall be deemed to be followed by the words “or equal”.
Because products specified may have a uniqueness that can’t be matched, the Contractor must “bid” the work based upon the products specified. If, during the submittal process, an equivalent product is proposed by the Contractor, the Contractor shall provide data to show that the product is considered equal.
Contractor shall also identify any price differences, which shall be considered as part of the substitution and if accepted, shall result in an appropriate credit or cost to the City by change order should the substitution be made.
Unless otherwise authorized by the Engineer, the proposed substitution must be submitted in sufficient time, before the normal use or installation of the material, process or equipment, for the Engineer to determine the equivalency and for the Contractor to make any required purchases (including delivery).
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The Engineer shall be responsible for solely determining whether the material proposed for substitution is equivalent to that specified, and the Engineer’s findings shall be final. If a substitute offered by the Contractor is found to be not equal to the specified material, the Contractor shall furnish and install the specified material.
The specified contract completion time shall not be affected by any circumstances developing from the provisions of this Section.
6.04 Inspection of Materials by City – Unless otherwise specified, inspection may be required at the source for such typical materials and fabricated items as bituminous paving mixtures, structural concrete, metal fabrication, metal casting, welding, concrete pipe manufacture, protective coating application, and similar shop or plant operations.
Standard items of equipment such as electric motors, conveyers, elevators, plumbing fixtures, etc., are subject to inspection at the job site. Special items of equipment such as designed electrical panel boards, large pumps, sewage plant equipment, etc., are subject to inspection at the source, normally only for performance testing. The Special Provisions may specify additional inspection requirements.
6.05 Inspection of Materials by Others – When the City does not elect to make its own inspection at the source, the City may, at its expense, engage an inspector or accredited testing laboratory to inspect the materials, equipment or process. The inspector or representative of the testing laboratory shall judge the materials by the requirements of the plans and specifications. No materials or equipment shall be shipped nor any processing, fabrication or treatment of such materials shall be done without a favorable inspection by the engaged agent. These materials shall be subject to re-inspection at the jobsite.
6.06 Tests of Materials – Before incorporation into the work, the Contractor shall submit samples of materials, as the Engineer may require, at no cost to the City. The materials for testing shall be delivered to the place by Contractor, and at the time designated, by the Engineer. Unless otherwise provided by the Special Provisions, all testing shall be performed under the direction of the Engineer, and at no expense to the Contractor.
The Contractor shall notify the City in writing at least fifteen (15) days in advance of any intention to use materials for which tests are specified, to allow sufficient time for the City to perform the tests. The notice shall name the proposed supplier and source of material.
6.07 Certification – The Engineer may waive material testing requirements of the Specifications and accept the manufacturer’s written Certificate of Compliance or test data demonstrating that the materials to be supplied meet the requirements of the specifications. A Certificate of Compliance is acceptable for authorizing the use of steel pipe in sizes less than eighteen (18) inches and vitrified clay, cast iron or ductile iron pipe in all sizes. All materials used on the basis of a Certificate of Compliance may be sampled or tested by the City at any time. The fact that material is used on the basis of a Certificate of Compliance shall not relieve the Contractor of the responsibility for incorporating materials in the work which conforms to the requirements of the Contract Documents.
6.08 Weighing and Metering Equipment – All scales and metering equipment used for proportioning materials shall be inspected for accuracy and certified within the past twelve (12) months by the State of California Bureau of Weights and Measures, by the County Director or Sealer of Weights and Measures, or by a scale mechanic registered with or licensed by the County, The accuracy of the work by a scale service agency, except as stated herein, shall meet the standards of the California Business and Professions Code and the California Code of Regulations pertaining to weighing devices. A certificate of compliance shall be presented to the Engineer for approval prior to operation, and shall be renewed whenever required by the Engineer at no cost to the City.
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All scales shall be arranged so they may be read easily from the operator’s platform or area. They shall indicate the true net weight without the application of any factor. The figures of the scales shall be clearly legible. Scales shall be accurate to within one percent (1%) when tested with the plant shut down.
Weighing equipment shall be so insulated against vibration or moving of other operating equipment in the plant area such that the error in weighing with the entire plant running will not exceed two percent (2%) for any setting nor one and one half percent (1.5%) for any batch.
6.09 Calibration of Testing Equipment – Testing equipment, such as but not limited to, pressure gages, metering devices, hydraulic systems, force (load) measuring instruments, and strain-measuring devices shall be calibrated by a testing agency acceptable to the Engineer at intervals not to exceed twelve (12) months, and following repairs, modification, or relocation of the equipment. Calibration certificates shall be provided when requested by the Engineer.
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SECTION 7 – UTILITIES
7.01 City’s Statutory Obligation – Pursuant to Government Code, Section 4215: “in any contract to which a public agency as defined in Section 4401 is a party, the public agency shall assume the responsibility, between the parties to the contract, for the timely removal, relocation, or protection of existing main or trunk line utility facilities located on the site of any construction project that is the subject of the contract, if such utilities are not identified by the public agency in the plans and specifications made a part of the invitation for bids. The contract documents shall include provisions to compensate the Contractor for the costs of location, repairing damage not due to the failure of the Contractor to exercise reasonable care, and removing or relocating such utility facilities not indicated in the plans and specifications with reasonable accuracy and for equipment on the project necessarily idled during such work. The Contract documents shall include provisions that the Contractor shall not be assessed liquidated damages for delay in completion of the project, when such delay was caused by the failure of the public agency or the owner of the utility to provide for removal or relocation of such utility facilities.”
7.02 Contractor’s Obligation to Identify and Protect Subsurface Infrastructure – The Contractor shall locate and protect service laterals, conduits, and appurtenances of any underground facility, the presence of which could be reasonably inferred from the Contract Documents or from the presence of visible facilities such as buildings, meters, and junction boxes, prior to doing any work that may damage any such facilities, or interfere with their service. Where underground main distribution conduits, such as water, gas, sewer, electric power, telephone, or cable television are shown on the plans, the Contractor shall assume that every parcel will be served by a service connection for each type of utility. The Contractor shall comply with all requirements for the protection of underground infrastructure as set forth in Government Code, Sections 4215 through 4216.9.
It shall be the Contractor’s responsibility to complete all work in a manner that satisfies utility company standards, providing if requested, detailed plans prepared by a California Registered Civil Engineer showing necessary temporary support of utilities during coordinated construction work. The Contractor is directed to contact these agencies before submitting bids and to be familiar with their requirements and shall include all costs of this coordination within the proposals bid prices.
The Contractor agrees to assume liability and to hold the City of San Carlos, its officers, and employees harmless from any damages resulting from the existence of underground utilities and structures not reported to the Engineer, not indicated on the public records examined, or located at variance with that reported or shown on records examined.
7.03 Location – The City will search known records and indicate on the plans those utilities, except service connections, which may affect the work. All available information regarding removal, relocation, or disconnection of utilities, or installation of new utilities, will be furnished to prospective bidders before the receipt of bids. The Contractor shall immediately report to the Engineer those utilities omitted from the plans or found substantially at variance with the location shown.
Existing and proposed utilities and improvements are shown in their approximate locations. Locations may not have been field verified and no guarantee is made as to the accuracy and completeness of the information shown. The fact that any facility is not shown on the plans shall not relieve the Contractor of any responsibility under this Section. It shall be the Contractor’s responsibility to determine the existence and location of utilities shown on the plans, indicated by field locating services, or evidenced by facilities visible in the field. No additional compensation will be allowed for delays incurred as a result of the Contractor’s failure to field verify and/or pothole existing utilities prior to beginning construction. Potholing shall be considered as part of the various contract bid items and no additional compensation will be allowed.
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At least three (3) working days prior to commencing work, the Contractor shall request that utility and agencies mark or otherwise indicate the location of their substructures. Contractor shall contact Underground Service Alert (USA) at (800) 642-2444 and the Engineer at least forty-eight (48) hours prior to excavation. The location of utilities as shown on the plans are approximate and are not to be construed as certainty. It shall be the Contractor’s responsibility to determine the true location and depth of all utilities and service connections affecting or conflicting with the work, prior to the performance of the work. As necessary, the Contractor shall pothole these utilities prior to working in the area to avoid damage to them.
Potholing shall be considered as part of the contract bid items, and no separate payment will be made.
Contractor shall be familiar with the type, material, age and condition of any utility which may be affected by the work.
7.04 Protection – As necessary or as directed by the Engineer, the Contractor shall field adjust proposed improvements to avoid conflicts with existing improvements. The Contractor shall not interrupt the service function or disturb the supporting base of any utility, without authority from the utility Owner or order from the City.
Where protection is required to ensure support of existing underground, overhead and at-grade utilities (including their associated structures and service connections) as shown on the plans, at the Contractor’s expense such protective measures shall be furnished and placed. In case of damage, the Contractor, without additional compensation, shall restore utilities to as good of a condition as they were found.
Upon learning of the existence and location of any utility omitted from or shown incorrectly on the plans, the Contractor shall notify the City and be fully responsible for protecting such utility. When authorized by the Engineer, additional protection may be paid by change order, for utilities other than a service connection.
The Contractor shall immediately notify the Engineer and the utility owner when Contractor disturbs, disconnects or damages any utility. If the utility is located substantially as indicated on the plans, the Contractor shall bear the costs of repair or replacement.
When placing concrete around or contiguous to any utility, at the Contractor’s expense, a cushion of expansion joint material, clear opening, sleeve, or other suitable material approved by the Engineer so as to prevent embedment or bonding of the utility with the concrete shall be furnished and installed.
7.05 Shut Down Notification – The City is in-charge of the sewer and storm water collection systems, traffic signals and street lighting system and as such the Contractor shall coordinate shut downs of these utilities and facilities with the City’s Engineer and Public Works Maintenance Department. The Contractor shall also coordinate the shutdown of all other utilities, including, but not limited to water, electricity, gas, communications, or CATV with the corresponding utility owner.
Shut downs of any utility or other facility, when allowed, shall be done only after:
(a) The Contractor has submitted a draft notification letter and the City has approved the notification letter. The City will have one week from the submittal date, to review and make suggested changes, and,
(b) Has properly notified customers (residents, businesses/agencies) emergency response staff by U.S. mail, and,
(c) Has all materials required for the work at the job site prior to requesting a shut off.
Except for scheduled shutdowns and in cases of emergency, the Contractor shall notify all customers and effected parties of a shutdown at least forty-eight (48) hours in advance by writing and four (4) hours in advance by person to allow adequate draw time. Once shut down, the Contractor shall proceed with the work in an expedient manner until the water lines or sewer lines are back in service.
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7.06 Removal – Unless otherwise specified, the Contractor shall remove all portions of interfering utilities shown on the plans as ‘abandoned’ or “to be abandoned in place”. Before starting removal operations, the Contractor shall ascertain from the utility Owner whether abandonment is complete.
The costs involved in the removal and disposal of utilities to be abandoned shall be considered as part of the contract bid items, and no separate payment will be made.
7.07 Relocation – When feasible, the utilities within the area affected by the work will complete their necessary installations, relocations, repairs, or replacements before commencement of work by the Contractor. When the Contract Documents or plans indicate that a utility is to be relocated, altered or constructed by others, the City will conduct all negotiations with the utilities and the work will be done at no cost to the Contractor.
Utilities interfering with the permanent project work, discovered after the award of the contract, shall either be relocated, altered, or reconstructed by the utility, or the Engineer may order changes in the work to avoid interference. Such changes will be paid for in accordance with General Provisions, Section 5, “Changes in Work”.
When the plans or specifications provide for the Contractor to alter, relocate, or reconstruct a utility, all costs for such work shall be absorbed in the contract bid items. Temporary or permanent relocation or alteration of utilities by the Contractor for convenience shall be the responsibility of Contractor. Contractor shall make all arrangements, obtain all approvals, and bear all costs. The Contractor may, for convenience or to expedite the work, agree with the owner of any utility to disconnect and reconnect interfering service connections. The City shall not be involved in any such agreement.
7.08 Delays – The Contractor is responsible for notifying utility companies in time to prevent delays attributable to utility relocations or alterations as called for in the Contract Documents. The Contractor shall not be entitled to damages or additional payment if such delay does occur. The Engineer will determine the extent of the delay based on the Baseline Construction Schedule (Section 8.05) and on the project as a whole, and any commensurate extension of time.
7.09 Cooperation – When necessary, the Contractor shall conduct operations so as to permit access to the worksite and provide time for utility work to be accomplished during the progress of the contract work.
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SECTION 8 – PROSECUTION AND PROGRESS
8.01 Notice to Proceed – Within twenty-one (21) calendar days following receipt of the signed agreement, bonds and insurance, the City shall issue the Contractor a Notice to Proceed provided that the documents are acceptable to the City. Unless stated otherwise, the contract time shall commence upon the receipt date on the Notice to Proceed.
8.02 Commencement of Work – Work shall commence within fifteen (15) calendar days following the receipt date on the Notice to Proceed, and shall be diligently prosecuted to completion within the time provided in the Notice to Bidders.
8.03 Subcontracting – Unless otherwise indicated by the Special Provisions, the Contractor shall perform the majority of the project work.
8.04 Administrative Duties – The Contractor shall coordinate the scheduling and timing of administrative duties with other activities to avoid conflicts and to ensure orderly project progress. Such activities include, but shall not be limited to, the preparation of construction schedules, preparation and processing of submittals, requests for information and responding to requests for quotations, attending and preparing for progress meetings and coordinating project closeout activities.
8.05 Baseline Construction Schedule – Within ten (10) calendar days of the Notice to Proceed, the Contractor shall submit to the Engineer an acceptable Critical Path Method (CPM) progress schedule showing the critical path for completing the various items of work within the number of contract days specified. The schedule shall show the order in which the Contractor proposes to carry out the major items of work and the dates on which he will start and finish the various items (including procurement of materials and equipment). If requested, the schedule shall be resource loaded to reflect person/crew hours and equipment loading for various construction activities in order for the City to better evaluate the proposed schedule.
(a) City Review of Schedule – The City may review and note exceptions to the Contractor’s schedule, if it is not sufficiently detailed to clearly show the work to be completed during each month to assure the completion of the work within the project duration. The Contractor will be solely and exclusively responsible for resolving any exceptions, and the City’s review will not create any scheduling obligations of the City. Any noted corrections to the schedule shall be addressed within five (5) working days. (b) Update of Schedule – After submission of a schedule to which the City has taken no exceptions, the Contractor shall submit an updated schedule on a monthly basis or as otherwise specified by the City until completion of the work. The updated schedule must show the “As Constructed” progress up to the date for which the schedule has been prepared and reflect any proposed changes in the method of operations, to achieve the project milestones within the required project duration. (c) Float – The schedule must show early and late completion dates for each task. The number of days between these dates will be designated as “float”. The float will be assigned to the project and available for the City, at the Engineer’s discretion, to allocate the “float” to the Contractor as needed to complete the work in accordance with the agreement.
(d) Failure to Submit Schedule – If the Contractor fails to submit a schedule within the time periods specified in this sub-section, or submits a schedule to which the City has taken uncorrected exceptions, the City may withhold payments to the Contractor until such schedule is submitted and/or corrected in accordance with the Contract Documents.
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8.06 Three-Week Look Ahead Schedule – The Contractor is required to furnish to the Engineer, on a weekly basis at the project’s progress meetings, a three-week look ahead schedule. The schedule must show planned activities in sufficient detail to allow proper monitoring of the planned construction activities.
8.07 Construction Sequence – The Contractor shall prepare and submit at the pre-construction meeting a staging or phasing plan identifying the sequence of construction work and traffic control needed to complete the project. The staging plan shall be subject to review and approval by the Engineer, prior to the start of construction. The goal of the phasing plan will be to minimize impacts to surrounding businesses and residents in the project areas. When required by the Special Provisions or plans, the Contractor shall follow the sequence of operations as set forth therein.
8.08 Recording Existing Conditions – Existing conditions throughout the project site shall be photographed and/or videotaped by the Contractor before starting construction. Recording shall include and show every detail of existing improvements, including the current condition of the curb, gutter, sidewalk, signs, landscaping, streetlights, structures near the project including face of buildings, canopies, shades, fences and any other features within the limits of work. Photos and/or videotape shall be delivered to the Engineer at the pre-construction meeting.
8.09 Preconstruction Conference – The City shall designate a date and time for the preconstruction conference once the contract has been fully executed. At the pre-construction conference, the City shall discuss various administrative procedures and project coordination issues. At a minimum, the Contractor should be prepared to furnish and discuss the following:
(a) Letter designating the Superintendent.
(b) A list of key personnel and emergency contact information including telephone numbers to be used in case of emergency
(c) Sequence or phasing plans identifying the phasing of construction work and any alternative sequences for consideration.
(d) Traffic control plans associated with the staging plans (to be signed and stamped by a Licensed Traffic Engineer).
(e) A draft of the master Baseline Construction Schedule, in Critical Path Method (CPM) format (to be finalized no later than ten (10) days after the Notice to Proceed). (f) A breakdown of lump sum bid items to be used as a basis for determining the value of work completed on future progress payments.
(g) A submittal schedule listing all project submittals that will need to be reviewed and a listing of proposed material suppliers.
(h) Utility company coordination and/or permit issues.
(i) Videotape and/or photography of the project’s existing condition (to be completed prior to starting construction.
(j) Anticipated cash flow projections, if requested by the engineer.
8.10 Progress Meeting – The Contractor, Job Superintendent and Subcontractors, if requested by the City, shall attend weekly progress meetings to be scheduled by the Engineer at a time agreeable to both the Engineer and the Contractor. Contractor shall also attend special meetings in addition to regular progress meetings if necessary and directed by the Engineer.
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8.11 Hours of Construction – Construction activities shall be limited to the hours of 8:00 a.m. to 6:00 p.m., unless otherwise noted or further restricted in the Contract Documents, or as directed by the Engineer. No work shall be done on weekends, holidays or outside these specified hours, unless otherwise approved by the Engineer. The Contractor shall take into consideration and coordinate time constraints for special events or activities organized by the City or other agencies. No mechanical equipment, including hauling or deliveries by trucks, shall start before 8:00 a.m. and all equipment must shut down before 6:00 p.m. unless approved by the Engineer.
8.12 Prosecution of Work – To minimize public inconvenience and possible hazards and to restore the streets and other work areas to their original condition and former state of usefulness as soon as practicable, the Contractor shall diligently prosecute the work to completion. If, in the Engineer’s opinion the Contractor fails to prosecute the work to the extent that the above purposes are not being accomplished, the Contractor shall, upon orders from the Engineer, immediately take the steps necessary to fully accomplish said purposes. All costs for prosecuting the work as described herein shall be absorbed in the Contractor’s bid. Should the Contractor fail to take the necessary steps to fully accomplish said purposes, after orders of the Engineer to do so, the Engineer may suspend the work in whole or in part, until the Contractor takes said steps. With or without such suspension, the Engineer may cause such steps to be taken by force account or by other means at the Contractors expense.
8.13 Suspension of Work – Work may be stopped or suspended in whole or in part for up to ninety (90) days when, in the Engineer’s opinion, the suspension is necessary and in the interest of the City. The Contractor shall immediately comply with any written order of the Engineer suspending work.
Such City directed suspension shall be without liability to the Contractor on the part of the City. Suspended work shall be resumed upon written order of the Engineer. An extension of contract time equal to the period of suspension shall be issued to the Contractor by change order. Any claim by the Contractor for an adjustment of the contract sum or the contract time shall be made within ten (10) working days after the end of the work suspension.
If work is suspended through any fault of the Contractor, all expenses and losses incurred by the Contractor during such suspensions shall be borne by the Contractor. If the Contractor fails to properly provide for public safety, traffic, and protection of the work during periods of suspension, the City may elect to do so, and shall deduct the cost thereof from monies due the Contractor. Such action will not relieve the Contractor from any liability.
8.14 Default by the Contractor and Termination of Control – As a result of any of the following events, the Contractor shall be deemed to be in default:
(a) If the Contractor is in bankruptcy or makes a general assignment for the benefit of creditors, or (b) If the Contractor fails to make prompt payment to Subcontractors for labor or materials, or (c) If a receiver is appointed on account of the Contractor’s insolvency, or (d) If the Contractor fails to provide enough properly skilled workmen or enough materials to ensure compliance with the construction time schedule, or (e) If the Contractor fails to perform any portion of the work within the timing requirements of the Contract Documents, or abandons the project site, or (f) If the Contractor disregards instructions from the Engineer or violates any provision of the contract, or
(g) If the Contractor fails to replace or repair any damage caused by the Contractor or its agents, representatives, Contractors, Subcontractors, or employees in connection with the performance of the work, or
(h) If the Contractor violates any legal requirement related to the work.
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In case of default, the City may give written notice to the Contractor and the Contractor’s bonding agent that if the default is not remedied within ten (10) calendar days or the Contractor does not provide adequate written assurance to the satisfaction of the Engineer that the cure will be forthcoming, the Contractor’s control over the work may be terminated as of the date specified in the written notice.
Upon such termination of control the City may enter upon and take possession of the entire work and may also take possession, for the purpose of completing the work, of all of the Contractor’s tools, equipment and appliances upon the work, and all materials on the site or stored off-site for incorporation into the work. The City may, at its sole option and without further notice to anyone, complete the work by day labor, by contract entered into by negotiations, by competitive bidding, by calling upon the performance of the performance bond surety, or by other means as the City, in its discretion, shall elect.
After termination of the Contractor’s control over the work as herein provided, the Contractor shall not be entitled to any further payments under the contract until the entire work thereunder has been fully completed and finally accepted by the City. After such completion and acceptance, if the “unpaid balance of the contract price” (as defined in the next paragraph) exceeds the sum of the amounts expended by the City in taking over and completing the work, including all managerial and administrative expense incurred by the City on account thereof and the amount of all damages incurred by the City by reason of the Contractor’s default, such excess shall be paid to the Contractor. If the said amount expended exceeds the unpaid balance, the Contractor and the surety shall be liable to the City for the difference. At the Contractor’s request, the expense incurred by the City in taking over and completing the work, and the amount of any damage incurred by the City by reason of the Contractor’s default shall be audited and certified by an independent third party, whose certificate thereof shall be binding and conclusive upon the parties.
For the purposes of the computations required by the paragraph above, the “unpaid balance of the contract price” shall be the original contract price as adjusted by any change orders issued prior to termination of the Contractor’s control, less all payments made on account thereof prior to such termination, and less any and all amounts withheld or paid pursuant to stop notices filed with the City upon claims of Subcontractors or others from equipment, labor or materials furnished to the work on behalf of the Contractor.
Upon completion and acceptance of the work, the Contractor shall be entitled to the return of all materials not used in the work, but without claim against the City for loss or damage with respect thereto, and shall be entitled to the return of all the equipment, tools and appliances taken possession of by the City, but without claim against the City for any charge for the use thereof or for usual and ordinary depreciation and wear and tear.
The exercise of remedies provided for in this sub-section, for default by the Contractor, shall be in addition to, and shall not be deemed a waiver by the City of any other rights or remedies due the City under the contract provisions, for default by the Contractor.
8.15 Contractor’s Right to Stop Work or Terminate Contract – The Contractor may give written notice to the Engineer of intention to stop work or terminate the Agreement, or both if the work should be stopped by order of any court or other public authority, through no act, omission or fault of the Contractor or any Subcontractor, agent or employee of the Contractor, and such work stoppage under such order shall continue for thirty (30) consecutive days from the effective date of such order If, after the Contractor provides notice to the City of any of the above defaults, the City does not remedy the default within ten (10) calendar days, the Contractor may stop work and may give the City written notice of contract termination. The Contractor may then recover from the City payment for all work executed to date and any loss sustained upon any equipment or materials procured for the work prior to the work stoppage. No compensation for loss of anticipated profits will be provided, however, on work not completed. The Contractor’s right to recovery shall be subject, however, to the duty of the Contractor to mitigate all loss or damage so far as reasonably possible.
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8.16 City’s Right to Terminate Contract – The City may, at its option, terminate the Agreement, in whole or from time to time in part, at any time by giving notice to the Contractor. Upon such termination, the Contractor agrees to waive any claims for damages, including loss of anticipated profits, on account thereof; and, as the sole right and remedy of the Contractor, the City shall pay the Contractor in accordance with this sub-section. Upon termination, the obligations of the Contractor for portions of the work already performed shall continue.
(a) Upon receipt of a Notice of Termination, the Contractor shall, unless the notice directs otherwise, do the following:
1. Immediately discontinue the work to the extent specified in the notice.
2. Place no further orders or subcontracts for materials, equipment, services, or facilities, except as may be necessary to complete such portion of the work that are not to be discontinued.
3. Promptly cancel, on the most favorable terms reasonably possible, all subcontracts to the extent that they relate to the performance of the discontinued portion of the work.
4. Thereafter do only such work as may be necessary to preserve and protect the work already in progress and to protect materials, plants, and equipment on the project site or in transit thereto.
(b) Upon such termination, the City shall pay to the Contractor as a sole and exclusive remedy for the termination, the sum of the following, and the Contractor will be entitled to no other compensation or damages, and expressly waives same:
1. The amount of the contract amount allocated to the portion of the work properly performed by the Contractor as of the date of termination, less sums previously paid to the Contractor, plus
2. Previously unpaid costs of any items delivered to the project site which were fabricated for subsequent incorporation in the work, plus
3. Any proven losses with respect to materials and equipment directly resulting from such termination, plus
4. Reasonable demobilization costs in excess of what would have been incurred if work were not terminated, plus
5. Reasonable costs for preparing a statement of the aforesaid costs, expenses, and losses in connection with such termination.
The City may terminate the Agreement at its own discretion or when conditions encountered during the work make it impossible or impracticable to proceed, or when the City is prevented from proceeding with the Agreement by act of God, by law, or by official action of a public authority.
8.17 Time of Completion and Days Charged – The Contractor shall diligently prosecute and fully complete the work within the number of calendar or working days set forth in the Notice inviting Sealed Proposals or shall be subject to liquidated damages. Time is of the essence in the performance of all obligations under the Contract Documents, and all timing requirements shall be strictly adhered to unless otherwise modified by the City. See General Provisions, Sections 8.12, “Prosecution of Work”, and 8.18, “Liquidated Damages”.
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Under a calendar day contract, City observed holidays and inclement weather delays are to be anticipated and unless there is a deviation from what is customary for the time of year the project is under construction, no additional days will be granted. Every day, including holidays, Saturdays and Sundays shall be counted as a day charged under a calendar day contract.
Under a working day contract, the Contractor will be given credit for City observed holidays and inclement weather delays, in accordance with the State Standard Specifications. Should the Contractor prepare to begin work at the regular starting time in the morning of any day on which inclement weather, or the conditions resulting from the weather prevents the work from beginning at the usual starting time and the crew is dismissed as a result thereof and the Contractor does not proceed with at least seventy-five percent (75%) of the normal labor and equipment force engaged in the current controlling operations for at least sixty percent (60%)of the total daily time being currently spent on the controlling operations, the Contractor will not be charged for a working day whether or not conditions should change thereafter.
8.18 Liquidated Damages – The City and the Contractor, by execution of the agreement, each agree that time is of the essence in the performance of the work, and that actual damages for inconvenience and loss from any delay in completion of the contract beyond the date provided in the Notice to Bidders is extremely difficult or impossible to determine.
The City and the Contractor further agree, as specified in the Notice to Bidders that liquidated damages shall be assessed for each and every calendar day required to complete the contract in excess of the contract time established for the project, and that the amount stated therein is a reasonable estimate of the amount of such damages. The Engineer may deduct any liquidated damaged owed to the City, as determined by the Engineer from any payments otherwise payable to the Contractor under this agreement.
In addition, the City shall have the right to charge to the Contractor and to deduct from the final payment for the work the actual cost to the City of engineering, inspection, administration and other overhead expenses which are directly chargeable to the contract and which accrue during the period of such delay, except that the cost of final surveys and preparation of the final estimate shall not be included in such charges.
Separate from the above-mentioned liquidated damages, the Contractor shall be responsible for paying all damages incurred by private businesses (residential, commercial or industrial), schools and hospitals due to non-completion of the project by the date specified.
Nothing contained herein shall limit the City’s rights or remedies against Contractor for any default other than failure to complete the work within the contract time. This provision for liquidated damages shall not be applicable nor act as a limitation upon the City if the Contractor abandons the work. In such event, the Contractor shall be liable to the City for all losses incurred.
The date of the Engineer’s Certificate of Substantial Completion shall be the termination date, if applicable, of liquidated damages.
8.19 Delays and Extensions of Time
(a) Excusable Delays – shall mean delays in the prosecution or completion of the work which result from causes beyond the control of the Contractor and City and which could not have been avoided by the exercise of care, prudence, foresight, and diligence on the part of the Contractor, suppliers, or any tier of the Contractor’s Subcontractors. Excusable Delays fall into the following categories:
1. Abnormal Delays – Excusable Delays caused by acts of god, fire, unusual storms, floods, tidal waves, earthquakes, strikes, labor disputes, freight embargoes, and shortages of materials insofar as they prevent the Contractor from proceeding with at least seventy-five percent (75%) of the normal labor and equipment force for at least five (5) hours per day toward completion of the current critical path activity.
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2. Weather Delays – Excusable Delays due to inclement weather conditions or the conditions resulting from weather prevent the Contractor from proceeding with seventy-five percent (75%) of the normal labor and equipment force engaged in the current critical activity item for a period of at least five (5) hours per day toward completion of the current critical path activity.
3. Material Shortage Delays – Excusable Delays due to shortages of material, provided that the Contractor submits satisfactory proof to the Engineer. For the proof to be satisfactory, the Contractor must demonstrate that every effort to obtain the materials from all known sources within reasonable reach of the proposed work has been made. Only the physical shortage of material, caused by unusual circumstances, will be considered under these provisions as an excusable delay, and no consideration will be given to any claim that material could not be obtained at a reasonable, practical, or economical price, unless it is shown to the satisfaction of the Engineer that such material was only available at exorbitant prices. A material shortage delay will not be considered for material ordered or delivered late or for material whose availability is affected by virtue of mishandled procurement. The above provisions shall apply equally to equipment to be installed in the work.
(b) Compensable Delays – shall include delays that occur in the prosecution or completion of the work, through no fault of the Contractor which prevent the Contractor from proceeding with at least seventy-five percent (75%) of the normal labor and equipment force for at least five (5) hours per day toward completion of the current critical activity item(s) on the latest favorably reviewed progress schedule due to the following causes:
1. Delays due solely to the actions and/or inactions of the City.
2. Delays due to changed conditions as defined in General Provisions, Section 5.05, “Requests for Information, Inconsistencies and Changed Conditions”.
3. Delays due to other Contractors employed by the City who interfere with the Contractor's prosecution of the work as defined above.
(c) Inexcusable Delay – means any delay in the completion of the work beyond the expiration of the contract time resulting from causes other than Excusable Delays or Compensable Delays. An Inexcusable Delay shall not entitle the Contractor to an extension of the contract time or an adjustment of the contract sum. In addition to liquidated damages for inexcusable delays, the Contractor agrees to pay the City’s actual costs, including charges for engineering, inspection and administration incurred during the delay. (d) Concurrent Delays – those periods of delay when the prosecution of the work is delayed during the same period of time due to causes from a combination of the delays defined as Excusable, Compensable or Inexcusable.
If the Contractor desires an extension of time, he shall file a written request based upon the delays reported. The Engineer will ascertain the facts, the extent of the delays, and the effect upon the entire project, and the City will grant an extension of time equivalent to verified time lost. The request for an extension of time must be made no later than ten (10) working days after the start of the condition that purportedly caused the delay, and no later than fifteen (15) working days after the date on which performance on the condition purportedly causing the delay has ended.
Contractor may make a delay claim for an extension of the contract time for an Excusable Delay or a Compensable Delay. If an Excusable Delay and a Compensable Delay occur concurrently, the maximum extension of the contract time shall be the number of calendar days from the commencement of the first delay to the cessation of the delay which ends last. If an Inexcusable Delay occurs concurrently with either an Excusable Delay or a Compensable Delay, the maximum extension of the contract time shall be the number of calendar days, if any, by which the Excusable Delay or the Compensable Delay exceeds the Inexcusable Delay.
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For a Compensable Delay, the Contractor may make a delay claim for an adjustment in the contract sum in an amount equal to the sum of the actual and unavoidable additional costs of labor, material, and equipment furnished at the site by the Contractor or Subcontractors, including wages, salaries, fringe benefits and payroll taxes.
Extensions of time, when granted, will be based upon the effect of delays to the project as a whole and will not be granted for non-controlling delays to minor portions of the work unless it can be shown that such delays did, in fact, delay the progress of the project as a whole. For purposes of determining delays, all float associated with the project schedule shall belong to the project. See General Provisions, Section 8.05, “Baseline Construction Schedule”.
If delays are caused by unforeseen events beyond the control of either the Contractor or the City, such delays will entitle the Contractor to an extension of time as provided herein, but the Contractor shall not be entitled to damages or additional payment due to these delays. War, governmental regulations, labor disputes, strikes, fires, floods, adverse weather necessitating cessation of work, other similar action of the elements, inability to obtain materials, equipment, or labor because of Federal Government restrictions arising out of National Defense, required extra work, action or inaction by the City, or other specific reasons as may be further described in the specifications may constitute such a delay. If delays beyond the Contractor’s control are caused by reasons other than those mentioned above, but are substantially equal in gravity to those enumerated, an extension of time may be granted, if deemed by the Engineer to be in the best interests of the City.
The Contractor shall be entitled to an extension of time if delayed due to a failure of the City to furnish necessary right-of-way or materials which the City agreed to furnish, or by the City’s failure to supply necessary plans or instructions concerning the work, after written request by the Contractor.
For Compensable Delay periods resulting in indirect overhead expenses, the Contractor shall be reimbursed as provided for in General Provisions, Section 5, “Changes in Work”.
8.20 Substantial Completion – When work in accordance with the Contract Documents has progressed to a stage of one-hundred percent (100%) complete, as determined by the Engineer, except for the completion of minor punch list items of deficiencies or omissions in the work which require correction in order to satisfy the agreement, yet do not impair the City’s ability to occupy and fully utilize the work for its intended purpose, the project shall be deemed “Substantially Complete”. Portions of the work may also be designated by the City as substantially complete if the Contract Documents require separate delivery.
When the Engineer determines that the work or such designated portions of the work are substantially complete, the Engineer will prepare and sign a Certificate of Substantial Completion. The date of substantial completion shall establish the date at which days charged against the project duration shall terminate. The date of substantial completion shall also establish the date of occupancy by the City and the transfer of responsibility from the Contractor to the City for such items as security, maintenance, heat, utilities, insurance, and damage to the work from causes other than that of the Contractor. Unless otherwise indicated in the Certificate of Substantial Completion, the Contractor’s guarantee for the work shall commence upon the date of substantial completion. See General Provisions, Section 11.01, “Contractor’s Guarantee”.
8.21 Project Closeout – After the Contractor has received the Certificate of Substantial Completion and has only minor work remaining, project closeout may begin. The following items and procedures are required as part of the project close out process. (a) Following the completion of punch list items, the Contractor shall make a written request to the city to conduct a final inspection. The written request shall be accompanied by a Certification that the work has been performed in accordance with the Contract Documents. (b) Within fourteen (14) days of receipt of the Contractor's Certificate of Completion, a final inspection will be scheduled and conducted by the City. As a result of the inspection, the City will advise the Contractor of any work that must be completed or corrected before Acceptance, in the form of a punch list.
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(c) The City will conduct a re-inspection of the punch list items within when requested by the Contractor, in writing, with assurances that the punch list requirements have been met.
Any charges by a Consulting Engineer/Architect hired by the City to do repeat re-inspection of the punch list may be recovered from the Contractor. (d) The contractor shall provide a final payment request with lien releases (if applicable) in a format acceptable to the City.
(e) The as-built drawings and all record documents shall be provided to the City by the Contractor including but not limited to, equipment operation and maintenance manuals, copies of warranties, shop drawings, product data, etc. Record documents shall be properly identified and organized into binders.
8.22 Final Completion – After the Contractor has received the Certificate of Substantial Completion along with the punch list, and has completed the items identified as necessary for project closeout, the Engineer will make a determination as to if the work is fully completed and in accordance with the Contract Documents. If so, the Engineer will recommend final acceptance to the City Council.
Should it become necessary, due to developed conditions, for the City to occupy any portion of the work, or any part of any structure or equipment, before the contract is completed or accepted, such occupancy shall not constitute an acceptance of any part of the work, unless so stated in writing by the City.
8.23 Final Acceptance – Final acceptance by the Engineer will be considered after the work has been fully completed. A Notice of Completion will be filed with the County Recorder once Final Acceptance has been made.
8.24 Risk of Loss – The Contractor shall be responsible for the charge, care and protection of the project and shall bear all risks of injury or damage to the work, materials or equipment delivered to the site, by any means including fire, earthquake, wind, storm or other action of the elements, vandalism, or loss by theft, from the date of Notice to Proceed to the date of the filing of the Notice of Completion by the Engineer. The Contractor shall rebuild, repair, restore and make good all injuries or damage to any portion of the work, and shall bear the entire expense thereof, except such injuries or damages that are caused by riot, insurrection, acts of the Federal or State Government, or a public enemy in time of war.
8.25 Use of Improvements During Construction – The City reserves the right to take over and utilize all or part of any completed facility or appurtenance. Such action by the City will not relieve the Contractor of responsibility for injury or damage to said completed portions of the improvement resulting from use by public traffic, from the action of the elements or from any other cause attributable to the Contractor’s operations or negligence. The Contractor will be required to restore such portions of the improvement before final acceptance. Nothing in this Section shall be construed as relieving the Contractor from full responsibility for correcting defective work or materials.
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SECTION 9 —RESPONSIBILITIES OF THE CONTRACTOR
9.01 Contractor’s Responsibility for the Work – The Contractor shall supervise, coordinate, and direct the work using Contractor’s best skill and attention. Contractor shall have control over and be solely responsible for construction means, methods, techniques, sequences, procedures, and the coordination of all portions of the work in accordance with the terms of the Contract Documents until the completion and final acceptance of the work by the City. The Contractor shall furnish and maintain in good condition all equipment and facilities as required for the proper execution and inspection of the work. Such equipment and facilities shall meet all requirements of applicable ordinances and laws.
The Contractor shall rebuild, repair, restore and make good all injuries, damages, re-erections and repairs occasioned or rendered necessary by causes of any nature whatsoever, excepting only acts of God and none other, to all or any portions of the work, excepting as otherwise stipulated.
9.02 Contractor’s Responsibility for Subcontracted Work – The City will deal directly with, and make all payments to the Contractor only. The Contractor shall be responsible for the coordination of all trades, Subcontractors, and suppliers engaged upon the work. Neither the City nor the Engineer will undertake to settle any differences between the Contractor and the Subcontractors.
All persons engaged in the work, including Subcontractors, will be considered as employees of the Contractor. The Contractor will be held responsible for their work and shall be responsible to the City for acts and omissions including those by their respective agents and employees.
When subcontracted work is not prosecuted in a manner satisfactory to the Engineer, the Contractor shall be notified to take corrective action within a specified time. If timely correction is not made, then upon receipt by the Contractor of written instructions from the Engineer, the Subcontractor shall be removed immediately from the work and shall not be reemployed.
9.03 Superintendent – The Contractor shall employ, and provide a written letter designating a superintendent and/or representative and all their contact information. The superintendent and/or representative shall be present on the job site whenever work is in progress to coordinate all work with the City and neighboring property owners, and who shall be available by phone twenty-four (24) hours per day, seven (7) days a week up to the Final Acceptance of the work by the City. A backup representative may also be provided. A joint venture shall designate only one Superintendent.
City approval of the Superintendent is required prior to starting work. The City reserves the right to request an appropriately qualified replacement of the Superintendent at any time during construction of the project. Contractor shall provide the Engineer with the Superintendent’s telephone number, along with an after-hours emergency contact number of a responsible person who shall correct hazardous situations, should they occur, during times other than the normal working hours.
Directions and information given to the Superintendent shall be considered as having the same effect as if delivered to the Contractor and the Superintendent shall have full authority to execute the same and to supply materials, tools and labor without delay, and who shall be the legally appointed representative of the contractor. Contractor shall be liable for the faithful observation of any instructions delivered to Contractor’s duly appointed representatives.
9.04 Character of Workers – Contractor shall provide competent, fully qualified personnel to perform the work and shall at all times maintain good discipline and order among its employees and Subcontractors. Any employed person or Subcontractor who is found to be incompetent, intemperate, troublesome, disorderly or otherwise objectionable or who fails or refuses to perform the work properly and acceptably, shall be immediately removed from the work by the Contractor and shall not be reemployed.
Such discharge shall not be the basis of any claim for compensation or damages against the City of San Carlos or any of its officers, employees or agents.
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9.05 Laws to be Observed – The Contractor shall be fully informed of, and at all times observe and comply with all Federal, State and County laws, including those of CAL-OSHA; all municipal ordinances and regulations of the City of San Carlos; and all orders and decrees of bodies having jurisdiction over the work. The Contractor shall also cause all agents and employees engaged on the project to observe and comply with all such laws, and shall protect and indemnify the City of San Carlos and all officers, employees, and agents thereof connected with the work against any claim or liability arising from or based on the violation of any such law.
(a) Non-Discrimination – Attention is directed to Labor Code, Section 1735 which reads as follows: “No discrimination shall be made in the employment of persons upon public work because of the race, religious creed, color, national origin, ancestry, physical handicap, medical condition, marital status or sex of such persons, except as provided in Government Code, Section 12940 and every Contractor for public works violating this Section is subject to all the penalties imposed for a violation of this chapter.” (b) Alien Labor – The Contractor shall forfeit as penalty to the City of San Carlos fifty dollars ($50.00) for each alien with no permit to work in the United States of America (USA) knowingly employed in the contract, by Contractor or by any hired Subcontractor upon any of the work herein mentioned, for each calendar day, or portion thereof, during which such alien is permitted or required to labor in violation of the provisions of the Labor Code and in particular Sections 1850 to 1854 thereof, inclusive. (a) Hours of Labor – Hours of labor shall be pursuant to Labor Code, Sections 1810. Pursuant to Labor Code, Sections 1813, Contractor shall forfeit to the City, as a penalty, twenty-five dollars ($25.00) for each worker employed in the execution of this Agreement by Contractor, or any Subcontractor in violation of the terms of this Section or in violation of the provision of any law of the State of California. Such forfeiture amounts may be deducted from the contract sum. Contractor and each Subcontractor shall keep, or cause to be kept, an accurate record showing the actual hours worked each calendar day and each calendar week by each worker employed on the project, which record shall be kept open at all reasonable hours to the inspection of the City, its officers and agents, and to the inspection of the appropriate enforcement agency of the State of California. (d) Prevailing Wage – As identified in the Notice to Bidders, the work contemplated by this agreement is a public work subject to prevailing wages under California Labor Code, Sections 1720 et. seq. The State of California Department of Industrial Relations has ascertained the general prevailing per diem wage rates in the locality in which the work is to be performed for each craft, classification, or type of worker required to perform the work.
A schedule of the most recent general prevailing per diem wage rates made available to the City will be on file at the City’s principal facility office and will be made available to any interested party upon request. This prevailing wage rate schedule is provided by the City for Bidder’s information only and is not guaranteed by the City to be current. Contractor is obligated to verify all appropriate prevailing wage rates and pay those rates as required.
By this reference the verified current schedule of prevailing wage rates is made part of the Contract Documents. Contractor shall pay not less than the prevailing per diem wage rates, as specified in the schedule and any amendments thereto, to all workers employed by Contractor in the execution of the work. Contractor shall cause all subcontracts to include the provision that all Subcontractors shall pay not less than the specified prevailing per diem wage rates to all workers employed by such Subcontractors in the execution of the work.
Contractor shall forfeit to the City, as a penalty, no more than fifty dollars ($50.00) for each calendar day or portion thereof for each worker that is paid less than the specified prevailing per diem wage rates for the work or craft in which the worker is employed for any portion of the work done by Contractor or any Subcontractor in violation of the provisions of the Labor Code, and in particular Sections 1770 to 1781 thereof, inclusive. Such forfeiture amounts may be deducted from the contract sum. Contractor shall also pay to any worker who was paid less than the specified prevailing per diem wage rate for the work or craft for which the worker was employed for any portion of the work, for each calendar day, or portion thereof, for which the worker was paid less than the specified prevailing per diem
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wage rate, an amount equal to the difference between the specified prevailing per diem wage rate and the amount which was paid to the worker.
The City will not recognize any claim for additional compensation because of the payment by the Contractor for any wage rate in excess of prevailing wage rates set forth in the Agreement, including payment in excess of the prevailing wage for extra work paid by force account. The possibility of wage increases is one of the elements to be considered by the Contractor in determining the Contractor’s bid and will not, under any circumstances be considered as the basis of a claim against the City under the Agreement. (e) Payroll Records – Pursuant to Labor Code, Sections 1776, Contractor and all Subcontractors shall keep an accurate payroll record, showing the name, address, social security number, job classification, straight time and overtime hours worked each day and week, and the actual per diem wages paid to each journeyman, apprentice, worker, or other employee employed in connection with the work. All payroll records shall be certified as being true and correct by Contractor or Subcontractors keeping such records; and the payroll records shall be provided to the City no later than three weeks after closing of payroll. The Contractor and all Subcontractors must also furnish electronic certified payroll records to the Labor Commissioner of the State of California, Department of Industrial Relations.
(f) Apprentice Program – Attention is directed to State of California Labor Code, Sections 3095, 1777.5, 1777.6, and 1777.7 and Title 8, California Code of Regulations, Section 200, and the applicable Sections that follow. Responsibility for compliance with these requirements lies with the Contractor. To ensure compliance and complete understanding of the law requiring apprentices, and specifically the required ratio thereunder, Contractor or Subcontractors should, where some question exists, contact the Division of Apprenticeship Standards, 425 Golden Gate Avenue, 4
th Floor, San Francisco, California,
94102 or one of its branch offices prior to commencement of the work. In the event Contractor willfully fails to comply with this Section, it will be considered in violation of the requirements of the Contract.
Nothing contained herein shall be considered or interpreted as prohibiting or preventing the hiring by Contractor or Subcontractors of journey worker trainees who may receive onthe-job training to enable them to achieve journey worker status in any craft or trade under standards other than those set forth for apprentices.
(g) Safety Program – the Contractor shall conform to the rules and regulations pertaining to safety established by the California Division of Industrial Safety and to all requirements as set forth in the State of California Construction Safety Orders (CAL-OSHA), and in particular, Article 3 of these Safety Orders, regarding Accident Prevention and safety meetings. Within ten (10) working days following the Notice of Award the Contractor shall provide a copy of the Contractor’s Safety Plan. The price paid for the plan is included in the various contract items of work and no additional compensation will be made therefore.
9.06 Permits and Fees – Unless otherwise stated in the Special Provisions, the Contractor shall procure all permits, registrations and licenses, including a City business registration, pay all charges and fees, and give all notices necessary for lawful prosecution of the work. All permits, registrations, licenses, and other authorizations shall be secured in sufficient time to prevent delays to the work. The Contractor shall comply with the provisions of said permits, licenses and other authorizations. The Contractor shall submit satisfactory proof to the City, prior to issuance of the Notice to Proceed, that such permits, registrations or licenses are and will be in effect throughout the entire life of this contract. The Contractor shall keep all permits, registrations and licenses posted on the job site.
For City Capital Improvement Construction Projects, the Contractor shall obtain a “No Fee” encroachment and/or building permit. Contractor shall coordinate through the Engineer to ensure that all appropriate construction inspections occur.
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9.07 Coordination and Cooperation – Construction work by utility companies or other Contractors may be needed or may be occurring simultaneously within or adjacent to the limits of work for this project.
The Contractor shall coordinate and cooperate with all other Contractors and utility companies throughout the duration of this project to avoid delays and minimize interference and conflicts. Cooperation will be required in the arrangement for the storage of materials, and in the detailed execution of the work. It is the Contractor’s responsibility to ascertain the nature of work by others, coordinate the work, and install, modify, and maintain traffic control as necessary to avoid interferences and delays on the construction activities.
Failure of the Contractor to keep informed of the work progressing on the site and failure to give written notice of lack of progress or defective workmanship by others shall be construed as acceptance by the Contractor of the status of the work as being satisfactory for proper coordination with Contractor’s work.
Where the work of one trade joins or is on the other’s work, there shall be no lack of continuity or discrepancy when work is completed. In conforming one kind of work with another, marring or damaging other work will not be permitted. Should improper work of any trade be covered by another which results in damage or defects, the whole work affected shall be made good by the Contractor without expense to the City.
The City reserves the right to perform work or allow others to perform work, as necessary, within or adjacent to the limits of this project, at any time. If the Contractor or any of the Subcontractors or employees causes loss or damage to any separate Contractor on the work, the Contractor, by agreement or arbitration, if they deems it necessary, will settle any claim for such loss or damage. If such separate Contractor shall sue the City, on account of any loss so sustained, the City shall notify the Contractor, who shall indemnify and hold harmless the City against any loss or damage arising therefrom, including the cost and expense of defending any such suit.
If any portions of the work specified herein are to be installed in any right-of–way owned by the State, County, Municipality, or other public entities or public utilities, it shall be incumbent upon the Contractor to familiarize described above will necessarily be subject to their inspection and approval before acceptance of these portions of the work by the Engineer. Any costs for inspection by agents other than those of the City shall be borne by the contractor. Where other agencies have jurisdiction over some portion of the work, and the requirements of the agencies are at variance with this specification, then that portion of the work shall be done in accordance with the requirements of the agency(ies).
The Contractor shall absorb in the bid all costs involved in coordinating the work with others. The Contractor will not be entitled to additional compensation from the City for damages resulting from such simultaneous, collateral and essential work.
9.08 Use of Premises – The Contractor shall confine construction activities to the project limits; which shall consist of right-of-way, easements and/or property owned by the City of San Carlos. With prior approval of the Engineer, adjacent street right-of-way may also be utilized for day-to-day operations. Unless approved by the Engineer, no storage of materials and equipment will be allowed to remain within the rightof-way during non-working hours, on the weekends, or during holidays.
Each day, after the completion of construction operations, unless otherwise approved by the Engineer, the project limits shall be secured and made accessible to the public. All excess materials and equipment not protected by approved traffic control devices (such as k-rails) shall be relocated to a staging area or demobilized. Trench spoils shall be offhauled daily and open excavations shall be protected with steel plates.
Personnel of Contractor and Subcontractors shall not occupy, live upon, or otherwise make use of the project site during any time that work is not being performed at the project site, except as otherwise provided for in the Contract Documents for issues such as site security.
9.09 Construction Staging and Field Office – If additional space beyond the construction limits is necessary for staging, the Contractor shall, make special arrangements with neighboring property City(s) to secure a staging area for a field office and/or material and equipment storage, at Contractor’s expense. The staging area must be fenced, with screening, and shall be operated in a manner that minimizes the inconvenience to neighbors.
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The Contractor is encouraged to negotiate side agreements with the property owners of such sites prior to submitting bids. Prior to occupying the staging area, the Contractor will be required to provide to the Engineer a copy of the agreement or temporary construction easement granted by the property owner. A written release from the property owners or City, holding the City harmless from liability, will also need to be provided. In addition to approval from the property owners, the Contractor may also need to secure a Use Permit from the City’s Planning Division.
9.10 Site Security – Contractor shall be responsible for the care and custody of work and the site, including all necessary security provisions, on a 24-hour per day basis throughout the entire term of the Agreement. The Contractor shall provide and maintain storage facilities and employ such measures as will preserve the specified quality and fitness of materials to be used in the work.
9.11 Construction Water – The Contractor is responsible for obtaining all water required for the project and shall work with, and obtain all permits from, the appropriate water purveyor prior to obtaining construction water. If hydrant water is to be used, the Contractor must first obtain a hydrant meter and pay all related expenses. Direct connections to hydrants without a meter are not allowed. If water trucks are used, they shall be installed with backflow prevention devices. The cost of water, including all associated fees, deposits or permits shall be incorporated into the various bid items and no separate payment shall be made. Water purveyors include:
California Water Service Company Mid-Peninsula Water District Bayshore District - Customer Center 3 Dairy Lane
341 North Delaware St. P.O. Box 129
San Mateo, CA 94401-1727 Belmont, CA 94002
M-F: 8 a.m. to 4:30 p.m. M-F: 8 a.m. to 4:30 p.m.
Tel.: (650) 558-7800 Tel.: (650) 591-8941
[email protected] midpeninsulawater.org
9.12 Project Site Maintenance – All work identified in this section shall be considered as part of the contract bid items, and no separate payment will be made thereof. (a) Disposal of Material – Unless otherwise shown on the plans or specified herein, all excess materials and materials removed from existing improvements shall become the property of, and be disposed by the Contractor. The Contractor shall be responsible for all costs associated with disposing all excess materials in a safe and legal manner. No material shall be placed on private or public property without prior approval from the City and the property owner. The Contractor shall not allow any refuse, excavated material, surplus concrete or mortar, or any associated washings, to be disposed upon paved streets, into manholes or into the City’s storm drain system.
Contractor shall establish a system for daily collection and disposal of waste materials from construction areas and elsewhere on the site. Contractor shall handle waste materials that are hazardous, dangerous, or unsanitary separately from inert waste by containerizing appropriately. Burning or burying of waste materials on site will not be permitted.
All materials removed from the existing improvements, which in the opinion of the Engineer have salvage value, shall be delivered to the City Corporation Yard at 1000 Bransten Road, San Carlos, or at any other site designated by the Engineer within the City and shall be considered as part of the contract bid items, with no separate payment will be made thereof. (b) Cleanup and Dust Control – at all times during construction, including weekends and holidays, and throughout all phases of construction, including work suspensions and until final acceptance of the project, the Contractor shall keep the work site clean and free from rubbish, debris, and prevent the formation of an airborne dust nuisance.
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Materials and equipment shall be removed from the site as soon as they are no longer necessary. Upon completion of the work and before final inspection, the entire site shall be cleared of equipment, unused materials, and rubbish so as to present a satisfactory clean and neat appearance.
The Contractor shall abate dust nuisance by cleaning, sweeping, and sprinkling with water those excavated areas of dirt or other materials which are prone to causing dust, within both the project site and the storage or staging area. If required or directed by the Engineer, the Contractor shall provide an approved water truck of large capacity with spraying capability and/or street sweeper.
The Contractor shall be required to apply water for dust control immediately during construction efforts and within one (1) hour after notification by the Engineer that an airborne nuisance exists. If dust control is not adequate, in the opinion of the Engineer, the Engineer will have this work performed by others and will deduct such cost from the total contract price.
All hauling trucks or other construction vehicles leaving the site shall be cleaned of mud or dirt clinging to exterior body surfaces or wheel rims before traveling on City streets outside the work limits. All trucks coming to or leaving the site with materials or loose debris shall be loaded in a manner, which will prevent the dropping of materials or debris on City streets.
Spillage resulting from hauling operations along or across any public traveled way shall be removed immediately.
When construction operations cause dirt to be deposited on public streets, the Contractor shall immediately remove such material. Streets shall be cleaned by street sweeping, rather than flushing, so as to prevent mud from entering the storm drain system.
Excess excavated material shall be removed from the site immediately. Sufficient material may remain for use as backfill if permitted by the specifications. Forms and form lumber shall be removed from the site as soon as practicable after stripping.
Failure of the Contractor to comply with the Engineer’s cleanup orders may result in an order to suspend work until the condition is corrected. No additional compensation will be allowed as a result of such suspension.
(c) Air Pollution Control – The Contractor shall not discharge smoke, dust, or any other air contaminants into the atmosphere in such quantity as will violate the regulations of any legally constituted authority.
(d) Noise Control – The Contractor shall make every reasonable effort to control noise generated as a result of construction to the satisfaction of the Engineer. Use of an air compressor, jackhammer or other loud, vibrating sound generating device shall be limited to operations between the hours of 8:00 a.m. and 6:00 p.m. Monday thru Friday and between 9:00 a.m. to 5:00 p.m. on Saturday and Sunday, unless otherwise authorized by the Engineer.
(e) Vermin Control – At the time of acceptance, structures entirely constructed under the contract shall be free of rodents, insects, vermin and pests. Necessary extermination work shall be arranged and paid for by the Contractor as part of the contract work within the contract time and shall be performed by a licensed exterminator in accordance with requirements of governing authorities. The Contractor shall be liable for injury to persons or property and responsible for the elimination of offensive odors resulting from extermination operations.
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(f) Sanitation – The Contractor shall provide and maintain enclosed toilets for the use of employees engaged in the work. These accommodations shall be maintained in a neat and sanitary condition. They shall also comply with all applicable laws, ordinances and regulations pertaining to the public health and sanitation of dwellings and camps. (g) Wastewater – Wastewater systems shall not be interrupted. Should the Contractor disrupt existing sewer facilities, the Contractor shall immediately notify the Engineer, and the Contractor shall establish a plan, subject to the approval of the City, to convey the sewage in closed conduits and disposed of it back into the sanitary sewer system. Sewage shall not be permitted to flow in trenches or be covered by backfill. (h) Temporary Light, Power and Water – The Contractor shall furnish, install, maintain, and remove all temporary light, power, and water, including piping, wiring, lamps, and other equipment, necessary for the work at Contractor’s expense. The Contractor shall not draw water from any water source, except to extinguish a fire, without first obtaining permission from the appropriate water utility company/agency.
(i) Storm Water Pollution Control – All work shall conform to the National Pollutant Discharge Elimination System (NPDES) General Permit for Storm Water Discharges Associated with Construction and Land Disturbance Activities (Order No. 2009-0009-DWQ, NPDES No.
CAS000002) ("General Permit"), and the NPDES Municipal Regional Stormwater Permit (MRP) (Order No. R2-2015-0049, NPDES No. CAS612008). The Contractor shall implement all applicable San Mateo Countywide Water Pollution Prevention Program (SMCWPPP) measures and Best Management Practices (BMPs). Failure to comply with the approved construction BMPs will result in the issuance of correction notices, citations and/or a stop work order.
The Contractor shall submit to the City a Stormwater Pollution Prevention Plan (SWPPP) or Water Pollution Control Plan (WPCP), prepared in compliance with all NPDES requirements. The SWPPP/WPCP prepared by the Contractor shall address how the Contractor will prevent materials from being rinsed or washed into the storm drain system and specify which BMPs will be implemented for preventing sediment and pollutant discharges into the storm water system. The Contractor shall provide for the construction of facilities which may be required to prevent, control, and abate water pollution.
All construction efforts shall be conducted in a manner which prevents the release of hazardous material or hazardous waste into the soil or groundwater, and minimizes the discharge of pollutants into the storm drain system. No pollutants will be allowed to enter the storm drainage system. The Contractor shall be responsible for containing and removing any waste from the Contractor’s construction operations using the appropriate BMP. The Contractor shall be responsible for cleaning catch basins of solid or liquid waste materials originating from the Contractor’s operation before this material migrates further into the storm drain system. Violation of this provision shall cause the City to issue a stopwork notice and take necessary action to require the Contractor to correct and comply with regulations. All costs related to the stop-work action and corrective work to come into compliance shall be fully borne by the Contractor.
Existing Drainage Conditions – If the work performed interferes with established drainage patterns, ample provisions shall be made by the Contractor to correct the interference. The City may also direct the Contractor to take additional measures to be performed at the Contractor 's expense.
Illicit Discharge – No dumping or discharge of construction materials, debris, and hazardous materials will be permitted into the City's storm drainage system. In the event of any discharge, leakage, spill or emission of hazardous materials, Contractor shall promptly notify the City and shall clean all affected property. The Contractor shall indemnify, hold harmless and defend the City against all liability incurred as a result of any such discharge, leakage, spill or emission, regardless of whether such liability, cost or expense arises during or after the term of the permit.
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9.13 Preservation of Property – The Contractor shall be responsible for the protection of public and private property adjacent to the work.
Due care shall be exercised to avoid damage to existing roadway improvements and facilities, adjacent property, roadside trees, lawn and shrubbery not designated for removal, pole lines, fences, signs, survey markers and monuments, buildings and structures, conduits, pipelines under or above ground, sewer and water laterals, and any other improvements or facilities within or outside the limits of construction.
As ordered and approved by the Engineer, the Contractor shall provide and install suitable safeguards to protect such objects from injury or damage. If such objects are injured or damaged by reason of the Contractor’s operations, they shall be replaced or restored, at the Contractor’s expense, to a condition as good as when the Contractor entered upon the work, or as good as required by the Contract Documents.
Existing striping damaged during construction within and adjacent to the project site shall be replaced with thermoplastic. Partially damaged striping (such as what might occur trenching through a pavement legend), shall be replaced in their entirety.
Contractor shall preserve carefully benchmarks, reference points, and stakes; in case of willful or careless destruction, will be charged with the resulting expense of replacement and shall be responsible for any mistakes that may be caused by their unnecessary loss or disturbance.
Any survey monuments that are damaged or removed as part of the construction shall be replaced by the Contractor and a Record of Survey, as required by State law, shall be filed by a licensed Land Surveyor at the Contractor's expense.
The fact that any such improvement or facility is not shown upon the plans shall not relieve the Contractor of responsibility under this Section. It shall be the Contractor’s responsibility to ascertain the existence of any underground improvements or facilities indicated on the plans, indicated by locating services, or as evidenced by facilities visible in the field.
Contractor shall protect the work, supplies and materials from damage due to the nature of the work, the action of the elements, trespassers, or any cause whatsoever which is under Contractor’s control, until the completion and acceptance of the work. Neither the City nor any of the City's agents assume any responsibility for collecting indemnity from any person(s) causing damage to the work of the contractor.
9.14 Protection of Buried Utilities – When the Contractor's attention is directed to the existence of pipes, cables, culverts, and other underground structures and improvements which may or may not be shown on the plans, it is the responsibility of the Contractor to ascertain the exact location of such underground utilities in advance of any digging operations so that they shall not be disturbed or damaged by the Contractor during the progress of the work. All expenses of whatever nature arising from such disturbance or replacement or repair thereof shall be borne by the Contractor.
If the location of pipelines being installed by the contractor under this contract conflicts with the location of existing pipelines, Contractor shall so notify the Engineer in writing. The Engineer will ascertain the location of the existing utility in question and may require relocatation of the pipeline being installed for the convenience of the Contractor. It shall not be construed that the City or the Engineer is in any way required or obligated to locate or relocate pipelines to locations other than shown on the contract plans. If the Engineer relocates pipelines at the request of the Contractor, the Contractor shall bear all the expenses incurred in connection therewith.
9.15 Protection of Bridges – Contractor shall be responsible for any damage they may cause to bridges, culverts and road structures. The Contractor shall determine in advance the allowable safe load for each structure and, if necessary, provide special shoring and support at Contractor’s expense.
9.16 Protection of Traffic Signal Facilities – The Contractor shall give at least seventy-two (72) hours advance notice to the Engineer before commencing any street work (such as pavement grinding or trenching) that may potentially damage any traffic signal detection loop wires or any other signal facility.
This requirement is in addition to any Underground Services Alert notifications. The City will then mark the underground traffic signal facilities.
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The Contractor shall not proceed with any grinding, trenching or other underground work until it has been verified with the Inspector that signal facilities have been marked.
In the event that the Contractor's construction activities cause any failure of a traffic facility, it shall be repaired and be made fully operable within 24-hours of the damage occurring. In the event that such repair is not undertaken within this time limit, the City may repair the facility at the Contractor’s expense.
9.17 Restoration of Adjacent and Existing Improvements – Contractor shall do all cutting, fitting, or patching of the work required to make all parts of the work come together properly with existing and adjacent conditions.
Unless otherwise provided, the Contractor shall repair or replace all existing improvements (e.g., curbs, sidewalks, driveways, fences, signs, utilities, street surfaces, structures, etc.) damaged or removed as a result of the Contract operations. Repairs and replacements shall be at least equal to existing improvements, and shall match in terms of condition, finish and dimension to the satisfaction of the Engineer.
All Underground Services Alert (USA) markings, including the initial markings made by the Contractor and those markings placed by others in response shall be removed at the Contractor’s expense when they are no longer required. Acceptable means of removal include sand blasting, high pressure washing, or other means approved by the Engineer.
All traffic signs and street signs within the limit of work necessarily removed during the various phases of operations shall be temporarily reset by the Contractor at or near the original location upon completion of each phase of construction operations. Prior to removal of all traffic control signs, the Contractor shall submit photographs of the site which show the existing location of these signs so that upon completion the photographs will aid in resetting the signs at or near their original location. Traffic control signs and street signs will be replaced upon completion of the work and the cost of removal and replacement shall be considered as part of the contract bid items, and no separate payment will be made thereof.
Rural type mailboxes shall be maintained by the Contractor in a manner satisfactory to the property owner and postal service, and the Contractor shall relocate the same as soon as possible to a permanent location in accordance with postal regulations and in a location acceptable to the property owner.
Any object to be removed and reused at other locations shall be removed with due care and delivered or stored at the project’s construction storage area, or if approved by the Engineer, at any other site designated by the Engineer within the City. Such objects may consist of street light poles, signal mast arms and other objects directed by the Engineer. Items not approved by the Engineer for reuse purposes, and without salvage value, shall become the property of the Contractor, to be disposed of at Contractor expense, in an acceptable manner.
9.18 Archeological Remains – If human and/or archeological remains are uncovered during excavation. All earthwork within one hundred (100) feet of these materials will be stopped until a Coroner and/or professional archeologist (SCA) and/or the Society of Professional Archeology (SOPA) has had an opportunity to evaluate the significance of the find and suggest appropriate mitigation measures.
9.19 Access to Private Property – The Contractor shall schedule and perform operations so as to minimize disruption of access to private property. Prior to blocking access to any private driveway or parking lot entrance, the Contractor shall notify the residents, business owners or tenants of pending closure and allow residents to remove vehicles. During non-working hours no driveway, house or parking lot shall be denied access to a public roadway.
The Contractor shall coordinate with the adjacent property owners and businesses and maintain vehicle and pedestrian access to their properties at all times. Temporary access ramps, fencing, or other measures shall be provided as needed.
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9.20 Traffic Control and Public Convenience – The Contractor shall provide for safe movement of all vehicular, bicycle and pedestrian traffic through and around the construction operations with as little inconvenience and delay as possible. The Contractor shall have no amount of work under construction other than what he can properly prosecute with due regard to the rights and convenience of the public.
Proper conveyance of vehicular traffic and pedestrians through the work area depends upon navigating under unexpected situations. The means of clarifying such conditions to the public include the Contractor’s use of signs, flagmen, pavement markings, barricades, lights, cones and delineators. No one standard sequence of signs or control devices will suit all conditions which may result from construction operations. Even for the same work, the conditions may vary from hour to hour, requiring adjustment and revisions of the traffic control in effect. The traffic control requirements specified herein are therefore intended to establish general principles to be observed in the control and regulation of traffic through and around the construction operations anticipated for this project. The requirements set forth in this Section represent the minimum traffic control requirements imposed and the Contractor shall be solely responsible for providing the full extent of traffic control measures that are necessary. Only individuals trained in the principles of implementing traffic control and/or traffic control flagging shall be assigned that responsibility at the work site.
(a) Traffic Control Plan – The Contractor shall submit a Traffic Control Plan to clearly describe proposed traffic control measures. The plan shall be generally in accordance with the illustrations included in the “California Manual of Uniform Traffic Control Devices” and the “Work Area Traffic Control Handbook”, (Building News Incorporated P.O. Box 3031, Terminal Annex, Los Angeles, CA 90051). The submittal shall consist of scaled drawings for each situation anticipated to be encountered, i.e., intersections, mid-block (each during working and non-working hours), etc. The drawings shall show signs, traffic control devices and flagmen as required.
The Traffic Control Plan shall be directed equally to the regulation and protection of nonvehicular traffic including pedestrians, bicyclists, joggers, skaters, skateboarders, etc. The Contractor shall provide for the protection and separation of non-vehicular traffic from construction operations at all times. No work involving the implementation of traffic control shall begin until the Engineer has reviewed and has no exception to the traffic control plans.
The Contractor may implement a revised Traffic Control Plan only with subsequent review with no exceptions by the Engineer.
(b) Traffic Control Devices – Traffic control devices shall be provided in sufficient quantities and types as required to provide safe and adequate traffic control. During hours of darkness, approved lights and/or flares shall be included, in proper working order, to illuminate signs and hazards and alert approaching traffic. Barricades shall be furnished and maintained along all open trenches in contact with traffic. No work may begin on any day or at any time before traffic control devices have been placed, test driven and, if required, adjusted and revised. All traffic control devices shall be placed in accordance with the Manual of Uniform Traffic Control Devices and the Contractor’s favorably reviewed traffic control plans. Locations of devices shall be adjusted to suit the conditions and circumstances of each detour situation. In all cases, signs shall be placed to most effectively convey their messages to approaching traffic.
The Contractor shall maintain all traffic control devices, at proper locations and in proper working order, at all times during construction operations and whenever a hazard resulting from Contractor’s operations exists. The Contractor shall adjust and revise traffic control devices, placement, etc., to suit changing conditions around construction operations.
Traffic control devices shall remain in place at all times, as required to alert approaching traffic of upcoming hazards. After hazards have been removed, all traffic control devices shall be removed. Temporary signs shall be removed or their messages covered.
Daily traffic control measures shall continue until cleanup activities have been satisfactorily completed and all of the Contractor’s equipment has been removed from the traveled way.
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(c) Traffic Control Detours – The Contractor shall direct, divert and detour traffic through, around and adjacent to construction operations in accordance with the traffic control plans specified in the Contract Documents or in accordance with the Contractor’s favorably reviewed traffic control plans.
1. Field Review of Detours – Immediately after traffic control devices have been placed, the detour shall be test driven by the Engineer or Inspector and the Contractor’s Superintendent. The test drive shall include approaches to the detour from each possible direction, and traverse the full length of each detour route. The Contractor shall adjust and revise all traffic control devices as determined to be required by the test drive and the test drive shall be repeated, if determined necessary by the Engineer or Inspector. The Contractor shall provide additional traffic control devices as required to maintain the flow of traffic throughout construction operation.
2. Diverting Bicycle and Pedestrian Traffic – Whenever construction operations obstruct the flow of bicycle and pedestrian traffic or present a hazard to bicycles and pedestrians, the Contractor shall take appropriate action to protect and separate bicycles and pedestrians from the work area. Such action may include placement of barricades between bicycles and pedestrians and the work areas, placement of warning signs, and provisions utilizing personnel as required to protect and maintain access for bicycles and pedestrians as conditions warrant.
3. Diverting Vehicular Traffic – Whenever construction operations obstruct the flow of vehicular traffic or present a hazard to vehicles operating in the vicinity of construction operations, the Contractor shall take appropriate action to warn, detour and otherwise protect approaching drivers and vehicles.
4. Flagmen – The Contractor shall employ flagmen as required for each specific detour and at all locations where barricades and warning signs cannot control the movement of traffic. A warning sign shall be placed ahead of the flagman reading:
“Flagman Ahead.” The distance between the sign and the flagman should be based on the average traffic speed, allowing approximately fifty (50) feet for each ten (10) miles per hour. During hours of darkness, flagman stations shall be illuminated such that the flagman will be clearly visible to approaching traffic.
Lights for illuminating the flagman station shall receive favorable review by the Engineer. The flagman shall wear a red or orange warning garment when flagging.
Flagmen shall be provided with approved red flags or STOP/SLOW hand paddles, and two-way radios for communication. When flagging during hours of darkness, the flagman shall signal with a red light or flare and shall have a belt and suspender harness outside any garments fitted with reflectors or made from reflectorized cloth, unless the garment is well reflectorized in one of these ways.
5. Notice to Agencies – The Contractor shall notify the Engineer and all agencies having jurisdiction over the work, in writing, at least ninety-six (96) hours, excluding holidays and weekends, prior to instituting any lane closure or detour. At the end of each workday, the Contractor shall inform the Engineer, Police Department and Fire Departments of the status of all detours, lane restrictions, or road closures.
The Contractor shall cooperate and coordinate with the various parties involved in the collection and removal of trash and garbage, the transit providers, the U.S.
Postal Service, and others, as necessary, in order to maintain existing schedules and services.
6. Emergency Vehicle Access Through Detours – During all detours and/or street closures the Contractor shall provide for the movement of emergency vehicles through the work area. It is essential that the Contractor’s work and equipment does not impede emergency access.
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7. Night Detours – The Contractor shall not be permitted to maintain any lane closure or road closure during non-working hours without first obtaining written approval from the Engineer. During non-working hours the Contractor shall restore travel lanes to their original alignment and configuration by means of placing temporary asphalt pavement or bridging with steel plates. The Contractor shall place “ROUGH ROAD” signs conforming to the Manual of Uniform Traffic Control Devices at uneven temporary pavement or bridging locations. See General Provisions, Section 9.18 (b), “Trench Safety Requirements”.
8. Temporary Traffic Lanes – Temporary traffic lanes shall be at least ten (10) feet wide, or eleven (11) feet wide around curves. Provide an additional two (2) feet of clearance from curbs. The length of temporary lanes should be limited to the area under construction and the distance necessary to divert traffic. (d) Parking Restrictions – The Contractor shall post approved “No Parking” signs at all locations necessary to establish work areas and detour traffic. Signs shall read: “NO PARKING - CONSTRUCTION TOW-AWAY ZONE,” show the actual day and hours of parking restriction and indicate the telephone number of the City’s Police Department or agency having jurisdiction. Signs shall be placed at least forty-eight (48) hours in advance of the restriction. The Engineer shall approve the location and duration of no parking limits and verify their placement. The duratuin of no parking limits should not exceed two weeks, unless otherwise approved. “No Parking” signs shall be removed when no work is under construction and must be reposted forty-eight (48) hours before the resumption of construction activities.
For any violation of “No Parking” signs by motorists, the Contractor shall contact and coordinate directly with the City’s Police Department for removal of vehicles in accordance with the California Vehicle Code. The Contractor shall also coordinate with the Police Department directly for enforcement and towing of parked vehicles.
9.21 Safety – The Contractor shall be solely responsible for initiating, maintaining, and supervising all safety precautions and programs in connection with the performance of the work. The Contractor’s responsibilities shall specifically provide for the safety of persons involved in the project, other persons who are affected by the performance of the work, the work in place, materials and equipment to be incorporated in the work, the project site, and adjoining property.
The services of the City in conducting inspection or construction review of the Contractor's performance is not intended to include review of the adequacy of the Contractor's work methods, equipment, bracing, shoring or scaffolding, or safety measures, in, on, or near the construction site.
Safety vests and personal protection equipment shall be worn by the Contractor, all Subcontractors and other personnel when working or present on the site. Hard hats shall be worn when working around earthmoving or any heavy construction equipment or during any overhead construction work.
Payment for performing all work necessary to provide safety measures shall be included in the bid items for which safety measures are required and no additional compensation will be made. (a) Safety Orders – The Contractor shall have at the work site, copies or suitable extracts of:
Construction Safety Orders, Tunnel Safety Orders, and General Industry Safety Orders issued by the State Division of Industrial Safety. The Contractor shall comply with provisions of these and all other applicable laws, ordinances, and regulations. (b) Trench Safety Requirement – As required by California Labor Code, Section 6705 and in addition thereto, for any excavation of any trench or trenches five (5’) feet or more in depth, the Contractor shall submit to the Engineer for review, a detailed plan showing the design of shoring, bracing, sloping, or other provisions to be made for worker protection from the hazard of caving ground during the excavation of such trench or trenches. Structural calculations prepared, stamped and signed by a Registered Engineer licensed to practice
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in the State of California shall accompany the plan to verify the structural safety and adequacy of the sheeting, shoring and bracing to be used on the project. No such plan shall allow any shoring, sloping or a protection system less effective than that required by the Construction Safety Orders of the State Division of Occupational Safety and Health.
The maximum length of open trench shall be three hundred (300) feet or the distance that pipe can be installed in a single day as determined by the Engineer. Trenches shall be backfilled and covered with two (2) inches of cutback (in paved areas) or bridged with tackwelded steel plates at the end of each workday. Cutback shall be placed around plate edges to provide a smooth transition and to secure against displacement.
As soon as possible under the provisions of these specifications, the Contractor shall backfill all excavations and restore to usefulness all improvements that existed prior to the start of construction.
(c) Confined Space Entry Program (CSEP) - Entry into permit-required confined spaces as defined in Section 5157, Title 8, California Code of Regulations (CCR) may be required as a part of the work. All manholes, tanks, vaults, pipelines, excavations, or other enclosed or partially enclosed spaces shall be considered permit-required confined spaces until the pre-entry procedures demonstrate otherwise. The Contractor shall be responsible for implementing, administering, and maintaining a confined space entry program (CSEP) in accordance with Sections 5156, 5157, 5158, Title 8, CCR and shall implement such a program prior to performing any work in a permit-required confined space. A copy of the permit shall be available at all times for review by the Contractor and City personnel at the work site.
Prior to starting work, the Contractor shall prepare and submit its comprehensive CSEP to the Engineer. The CSEP shall address all potential physical and environmental hazards and contain procedures for safe entry into confined spaces, including, but not limited to the following:
1. Training of personnel
2. Purging and cleaning the space of materials and residue
3. Potential isolation and control of energy and material inflow
4. Controlled access to the space
5. Atmospheric testing of the space
6. Ventilation of the space
7. Special hazards consideration
8. Personal protective equipment
9. Rescue plan provisions
The Contractor’s CSEP submittal shall also include the names of the Contractor’s and Subcontractor’s personnel assigned to the project who will have CSEP responsibilities, their CSEP training, their specific assignment and their responsibilities in carrying out the CSEP.
Payment for implementing, administering, and providing all equipment and personnel associated with the CSEP shall be included in the bid items for which the CSEP is required, and no additional compensation will be made.
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(d) Hazardous Conditions: Contractor’s Responsibility for Precautions – Contractor agrees that if, during the progress of the work, a hazardous condition is identified which involves a risk of bodily harm to any person or a risk of damage to any property, the Contractor will take such special precautions as shall be necessary to make the progress of the work safe under such condition. Conditions may result from, but are not limited to, the use of specified materials or equipment, the location of the work, the condition of the site, the kind or method of construction, or the manner in which any of the work is required to be done.
The Contractor agrees to assume the sole responsibility for determining whether any such hazardous condition exists or will be created during the course of the work. (e) Use of Explosives – Explosives may be used only when authorized in writing by the Engineer, or as otherwise stated in the Specifications. Explosives shall be handled, used, and stored in accordance with all applicable regulations. No explosive material shall be transported to, stored or utilized on the site without written permission of Engineer. All blasting work and handling of explosives on the site shall be done only by qualified persons who possess a valid permit. The Engineer’s approval of the use of explosives shall not relieve the Contractor from liability for claims caused by blasting operations. (f) Special Hazardous Substances and Process – Materials that contain hazardous substances or mixtures may be required on the work. A Material Safety Data Sheet as described in California Code of Regulations, Section 5194 shall be requested by the Contractor from the manufacturer of any hazardous products used and submitted to the Engineer.
Hazardous material usage shall be accomplished with strict adherence to California Division of Industrial Safety requirements and all manufacturer warnings and application instructions listed on the Material Safety Data Sheet and on the product container label.
The Contractor shall notify the Engineer if a specified product cannot be used under safe conditions.
9.22 Patent Fees or Royalties – All fees, royalties or claims for any patented invention, article or method that may be used upon or in any manner connected with the work under this contract shall be included in the price bid for the work and the Contractor and the Contractor’s sureties shall protect and hold the City, together with all the City's officers, agents, servants and employees, harmless against any and all demands made for such fees or claims brought or made by the holder of any invention or patent and, before the final payment is made on account of this contract, Contractor shall, if requested by the Engineer, furnish acceptable proof of a proper release from all such fees or claims.
Should the Contractor, his agents, servants or employees, or any of them, be enjoined from furnishing or using any invention, article, material or appliance supplied or required to be supplied or used under this contract, the Contractor shall promptly substitute other articles, materials or appliances, in lieu thereof, of equal efficiency, quality, finish, suitability and market value and satisfactory in all respects to the Engineer. Or, in the event that the Engineers elects in lieu of such substitution to have supplies and to retain and use any such invention, article, material or appliance as may be required by the contract to be supplied – in that event, the Contractor shall pay such royalties and secure such valid licenses as may be requisite and necessary for the City, the City's officers, agents, servants and employees, or any of them to use such invention, article, material or appliance without being disturbed or in any way interfered with by any proceeding in law or equity on account thereof. Should the Contractor neglect or refuse to make the substitution promptly, or to pay such royalties and secure such licenses as may be necessary, then, in that event, the Engineer shall have the right to make such substitution or the City may pay such royalties and secure such licenses and charge the cost thereof against any monies due the contractor from the City or recover the amount thereof from the Contractor and any sureties notwithstanding final payment under this contract may have been made.
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9.23 Advertising – The names of the Contractor or Subcontractors, with their addresses and the designation of their particular specialties, may be displayed at the job site on removable signs only if written approval is received from the Engineer. Commercial advertising material shall not be attached to, or painted on the surfaces of, any buildings, fences, canopies, or barricades.
9.24 Antitrust Claims – Attention is directed to Public Contract Code, Section 7103.5 which provides: “In entering into a public works contract or a subcontract to supply goods, services, or materials pursuant to a public works contract, the Contractor or Subcontractor offers and agrees to assign to the City all rights, title, and interest in and to all causes of action it may have under Section 4 of the Clayton Act (15 U.S.C. Sec 15) or the Cartwright Act (Chapter 2, commencing with Section 16700, of Part 2 of Division 7 of the Business and Professions Code), arising from purchases of goods, services, or materials pursuant to the public works contract or subcontract. The assignment shall be made and become effective at the time the City tenders final payment to the Contractor, without further acknowledgement by the parties.”
9.25 Audit and Examination of Records – The City and entities and agencies designated by the City, shall have access to, and the right to audit and examine at no additional cost, all of the Contractor’s project related data including but not limited to, books, estimates, records, contracts, bid cost data, Subcontractor and supplier job cost data, change orders, correspondence, instructions, drawings, receipts, vouchers, purchase orders, notes, computations, daily logs, and memoranda relating to the work. Pursuant to Government Code, Section 8546.7, the Contractor shall preserve all such records and will be subject to examination and audit by the State Auditor, at the request of the City, for a period of three (3) years after final payment under the Agreement.
9.26 Notice of Entrance – Before entering any private property the Contractor shall give the owner, tenant and inspector a minimum of forty-eight (48) hours written notice.
9.27 Additional and Emergency Protection – Wherever, in the opinion of the Engineer, the Contractor has not taken sufficient precautions for the safety of the public or the protection of the works to be constructed under this contract, or of adjacent structures or property which may be injured by processes of construction on account of such neglect, and whenever, in the opinion of the Engineer, an emergency shall arise and immediate actions shall be considered necessary in order to protect personal and property interest, whether public or private, then and in that event, the Engineer, with or without notice to the Contractor, may provide suitable protection to the said interests by causing such work to be done and such material to be furnished as shall provide such protection as the Engineer may consider necessary and adequate.
The cost and expense of such work and material so furnished shall be borne by the Contractor and if the same shall not be paid on presentation of the bills therefore, then such costs shall be deducted from any amounts due or to become due the Contractor. The performance of such emergency work under the direction of the Engineer shall in no way relieve the Contractor from any damages which may occur during or after precaution has been taken by the Engineer.
9.28 Placing Portions of Work in Service – Portions of the work may be placed in service as completed if desired by the City. Contractor shall give proper access to the work for this purpose. Such use and operation shall not constitute an acceptance of the work and the work, and the Contractor shall be liable for defects due to faulty construction until the entire work under the contract is finally accepted.
9.29 Rights-of-Way – The City will provide all rights-of-way and easements in or beneath which pipes and other structures will be constructed by the Contractor under this contract. If through the failure of the City to acquire or clear title to rights-of-way, the Contractor sustains loss which could not have been avoided by the judicious handling of forces and plant, there shall be paid to the Contractor such amount as the Engineer may find to be a fair and reasonable compensation for such part of the Contractor's actual loss as the Engineer deems unavoidable. Actual loss shall be understood to include no items other than necessary payments, idle time of men, idle time of equipment, cost of extra moving of equipment, and cost of longer hauls, with no allowance in any case for overhead or profit. If performance of the Contractor's work is delayed as a result of the failure of the City to acquire or clear title to rights-of-way, a commensurate extension of time will be granted.
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SECTION 10 - MEASUREMENT AND PAYMENT
10.01 Measurement of Quantities for Unit Price Work – Materials and items of work which are to be paid for on the basis of measurement shall be measured in accordance with the methods stipulated in the particular sections of the Contract Documents involved. Unless specifically stated otherwise in this contract, no extra measurement(s) according to local custom of any kind shall be allowed in measuring the work under this contract; only the length, area, solid contents, number, weight, or time in standard units, as the case may be, shall be considered as specified.
Unless otherwise specified, quantities of work shall be determined from measurements or dimensions in the horizontal planes. Stationing shall be along the street centerline, lengths of sanitary sewers, storm drains and water lines shall be measured as the horizontal distances from center to center of structures, rounded to the nearest foot, and lengths of all return radii and curb data shall be measured along the face of curb. Volumetric quantities shall be the product of the mean area of vertical or horizontal sections and the intervening horizontal or vertical dimensions. Measurements shall be in accordance with U.S. Standard Measures. A pound is an avoirdupois pound. A ton is two thousand (2,000) pounds avoirdupois. The unit of liquid measure is the U.S. gallon.
When payment is to be made on the basis of weight, the weighing shall be done on certified platform scales or, when approved by the Engineer, on a completely automated weighing and recording system.
The Contractor shall submit to the Engineer with duplicate licensed Weighmaster’s certificates showing the actual net weights. The City will accept the certificates as evidence of the weights delivered.
10.02 Bid Items – Should any bid item be eliminated in its entirety, payment will be made to the Contractor for actual costs incurred, in connection with such eliminated contract work, and for costs incurred prior to the date of the Engineer’s written notification eliminating such work. The actual costs to be paid to the Contractor shall be computed in the same manner as if the work were to be paid on a force account basis. No compensation will be made to the Contractor, in any case, for loss of anticipated profits.
Increased or decreased scope involving a change order will be paid as stipulated in the change order.
The estimated value of work performed, for lump sum bids or lump sum bid items will be determined from the schedule of values, to be prepared by the Contractor and presented at the preconstruction meeting. Elements of work on the schedule of values shall be separated into groupings appropriate for the project. The Technical Specifications may be used as a guide for establishing these groupings. Move-in costs, bond and insurance costs, and submittal preparation costs can be included in the schedule of values under a separate mobilization line item. This line item shall not exceed five percent (5%) of the contract’s value. Overhead and profit shall not be allowed as a line item, but shall be prorated over other items of work.
10.03 Bid Quantities – The quantities listed in the Bid Schedule for each bid item do not govern final payment. Payments to the Contractor will be made only for the actual quantities of contract items constructed in accordance with the plans and specifications. If upon completion of the construction, the actual quantities show either an increase or decrease from the quantities given in the bid schedule, the contract unit prices will still prevail.
Payment will not be made for materials wasted or disposed of in a manner not called for under the contract. This includes rejected material not unloaded from vehicles, material rejected after it has been placed and material placed outside of the plan lines. Unless otherwise provided, no payment will be made for materials delivered to the site but not incorporated in the work. Such quantities will not be included in the final pay quantities. No compensation will be allowed for the disposal of rejected or excess material.
When the estimated quantity for a specific portion of work is designated on the Bid Schedule as a “Final Pay Quantity”, the estimated quantity specified shall be the final quantity for which payment for such specified portion of the work will be made, regardless of the actual quantity constructed, unless the dimensions of said portions of the work shown on the plans are revised by the Engineer. If such dimensions are revised and such revisions result in an increase or decrease in the quantity of such work, the final
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quantity for payment will be revised by the amount represented by the change. The estimated quantity for any portion of the work designated as a Final Pay Quantity shall be considered as approximate only and no guarantee is made that the quantity, which can be determined by computations, based upon the details and dimensions shown on the plans, will equal the estimated quantity. No allowance will be made in the event that the quantities based upon computations do not equal the estimated quantities. Final pay quantities will be designated on the Bid Schedule with the letter (F) and shall only apply to the corresponding portions of work specifically designated on the plans. Any portion of work not designated as a final pay quantity will be measured and paid for as specified under other provisions of the Contract Documents.
10.04 Progress Payments – On or about the 25th day of each month may be designated as the date which would terminate each working month for the purpose of making progress payments.
The Contractor's request for a progress payment shall be submitted under cover of the Request for Progress Payment form approved by the Engineer. The Request for Progress Payment form shall be complete and properly executed by the Contractor, and have, as attachments, the items listed on the form.
The Contractor shall, on the date established, prepare and submit a progress estimate to the City for work accomplished during the previous working month, based on the various contract bid items and the unit bid prices. Invoices shall include amounts previously paid, itemized retention and any deductions or additions authorized by change order. Consultation with the Engineer may be necessary to determine the amount of work accomplished.
The first progress payment will not be made until the following submittals have been provided and accepted: list and schedule of submittals, Baseline Construction Schedule, schedule of values (if applicable), SWPPP. Subsequent progress payment requests will not be accepted unless accompanied by the progress payment cover letter, an updated baseline or revised schedule, a certification that the record drawings have been updated as of the date of the invoice.
Upon receipt of a progress payment request, the City shall, within ten (10) working days, determine if the request is proper, and if disputed the City will return the progress payment to the Contractor along with a written document setting forth the progress payment request’s shortcomings. Following receipt of an undisputed and properly submitted progress payment request, the City shall authorize payment within thirty (30) calendar days.
Contractor may request partial payment for materials delivered to the site but not yet incorporated into the work (materials on hand). To receive consideration for payment of materials on hand, the Contractor shall provide the Engineer with a list of such materials at least five (5) working days prior to submitting the monthly estimate of amount earned for work completed. At the Engineer’s sole discretion, up to seventy-five percent (75%) of the estimated value of materials on hand may be considered for payment, subject to the following:
(a) Only materials which have received favorable review of shop drawings will qualify. (b) Eligible materials must be delivered and properly stored, protected, and maintained in a manner favorably reviewed by the Engineer, at the job site or at a bonded warehouse. (c) The Contractor's actual net cost for the materials must be supported by paid invoices to suppliers or other documentation requested by the Engineer. (d) Materials delivered to the site less than thirty (30) days prior to their scheduled incorporation in the work shall not qualify.
(e) Partial payments for materials on hand shall not be deemed to be final payment for the material nor relieve the Contractor of any obligations under the Contract. (f) Partial payments for materials on hand shall be subject to retention.
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From each progress estimate, five percent (5%) will be deducted and retained by the City, and the remainder of the amount due, less the amount of all previous payment will be paid to the Contractor provided all work invoiced has been completed and approved by the Engineer.
The Engineer may withhold or nullify, the whole or any part of any payment to such extent as may be necessary to protect the City from loss on account of any of the following:
(a) Defective or vandalized work not remedied,
(b) Damage to the City or another Contractor,
(c) Claims filed, or reasonable evidence indicating probable filing of claims, (d) Stop notices, or failure of the Contractor to make payments properly to Subcontractors or laborers or suppliers, in which case 125% of the stop notice amount shall be withheld until a release form is received,
(e) A reasonable doubt that the contract can be completed for the balance unpaid, (f) Reasonable evidence that the work will not be completed within the contract time and that the unpaid balance of the contract sum would not be adequate to cover the City’s liquidated damages assessed in accordance with the Agreement for the anticipated delay, (g) Failure of Contractor to maintain, update and submit record documents, schedules or other submittals as required by the Contract Documents,
(h) Performance of work by Contractor without properly processed shop drawings; (i) Any other failure of Contractor to perform its obligations under the Contract Documents.
The Contractor may elect to receive one hundred percent (100%) of payments due under the contract from time to time, without retention of any portion of the payment by the City, by depositing and maintaining securities of a value equivalent to the retention amount with the City in accordance with the provisions of Public Contract Code, Section 22300. Such securities, if deposited by the Contractor, shall be valued by the City’s Administrative Services Director, whose decision on valuation of the securities shall be final.
Contractor warrants that, upon submittal of an application for payment, all work for which payment has been previously issued by the City and received by the Contractor, shall be free and clear of all claims, stop notices, security interests, and encumbrances in favor of Contractor, Subcontractors, or other persons or firms entitled to make claims by reason of having provided labor, materials, or equipment relating to work.
The payment of progress payments by the City shall not be construed as an absolute acceptance of the work done up to the time of such payments and shall not constitute acceptance of defective work.
10.05 Retentions – The City shall retain five percent (5%) of the amount of each progress estimate, and the accumulation of said amounts so retained from the progressive payments to the extent unencumbered will be paid to the Contractor in no less than thirty-five (35) days after the completion and acceptance by the Engineer and the City of the work done.
Upon Contractor's request, City will make payment of funds withheld from progress payments pursuant to the requirements of Code Section 14402 if Contractor deposits in escrow with the City, or with a bank acceptable to the City, securities eligible for the investment of State funds under Government Code Section 16430 or bank or savings and loan certificates of deposit, upon the following conditions:
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(a) Contractor shall bear the expense of the City and the escrow agent in connection with the escrow deposit made.
(b) Securities or certificates of deposit to be placed in escrow shall be of a value at least equivalent to the amounts of retention to be paid to the Contractor pursuant to this section. (c) Contractor shall enter into an escrow agreement satisfactory to the City, which agreement shall include provisions governing inter alia:
1. Amount of securities to be deposited.
2. Providing of powers of attorney or other documents necessary for the transfer of the securities to be deposited.
3. Conversion to cash to provide funds to meet defaults to termination of the Contractor's control over the work, stop notices filed pursuant to the law, assessment of liquidated damages or other amounts to be kept or retained under the provisions of the contract.
4. Decrease in value of securities or deposit.
5. Termination of the escrow upon completion of the contract. (d) Contractor shall obtain the written consent of the surety to such agreement.
10.06 Final Payment – The City shall, prior to final acceptance, provide the Contractor with a copy of the final quantities for the various contract bid items and a summary of contract change orders for review. All prior payments shall be subject to correction in determining the total contract sum. The Contractor shall reply promptly in writing, to indicate either concurrence or an explanation of possible discrepancies in the total contract sum.
The project will not be submitted to the City Council for acceptance until the Engineer and the Contractor concur with the totals of all quantities, costs, contract change orders and the total contract sum.
Following concurrence, a semi-final payment will be made to the Contractor after deducting all previous payments and all amounts to be retained under the provisions of the contract. The retention payment shall be due and payable as a final payment after the expiration of thirty-five (35) days following the date of final acceptance of the work by the City Council.
If within the time fixed by law, a properly executed notice to stop payment is filed with the City, due to Contractor’s failure to pay for labor or materials used in the work, all money due for such labor or materials will be withheld from payment to the Contractor in accordance with applicable laws.
If releases are required, the Contractor shall pay or cause to be paid to Subcontractors the amount stated in the conditional releases within five (5) days after receipt of the semi-final payment, and shall promptly thereafter furnish evidence of such payment to the City.
The securities deposited by the Contractor will be released, providing that the following requirements of the contract have been fulfilled:
(a) Satisfactory completion of all construction work and written acceptance of said work by the City.
(b) The submission by the Contractor to the Engineer of all required stop notice releases, submittals, written guarantees, warranties, operating manuals, and other project related documentation.
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(c) The return to the Engineer of all drawings and written specifications loaned to the Contractor during the construction period.
(d) The submission by the Contractor to the Engineer of record documents and a set of red-lined drawings showing the revisions to the original set of drawings which reflect the actual construction of the project for preparation of “Record Drawings”.
The Contractor agrees that the payment of the final amount due under the contract shall release the City of San Carlos from any and all claims or liability on account of all work performed under the contract, except those items previously made in writing and identified by the Contractor as unsettled. Release of the final payment by the City shall not be construed as an acceptance of any defective work or acceptance of improper materials.
10.07 Acceptance – Contractor shall notify Engineer in writing of the completion of the work, whereupon the Engineer shall promptly satisfy them self by personal inspection as to the actual completion of the work in accordance with the terms of the contract. After receiving a written recommendation from the Engineer for acceptance of the work, City shall accept or reject the work; stating, if the work is rejected, the requisite conditions for acceptance. When the City accepts the work, they shall file a Notice of Completion with the County Recorder in the county where the work is located and shall promptly notify the Contractor in writing of the recordation. Contractor warrants and guarantees that title to all work, materials and equipment accepted by the City will pass to the City free and clear of all liens, claims, security interests or encumbrances, and that no work, materials or equipment accepted will have been acquired by the Contractor, or by any other person performing the work at the site or furnishing materials or equipment for the project, subject to an agreement under which an interest therein or encumbrances thereon is retained by the seller or otherwise imposed by Contractor of such other person.
10.08 Compensation for Extra or Omitted Work – Compensation for extra or omitted work shall be in accordance with Section 5.08, Change Orders.
10.09 Compensation to City for Extension of Time – In case the work called for under this contract is not completed within the time limit stipulated herein, the City shall have the right, as provided hereinabove, to extend the time of completion thereof. If the time limit so be extended, the City shall have the right to charge to the contractor and to deduct from the final payment for the work the actual cost to the City of engineering, inspection, administration, legal and other overhead expenses which are directly chargeable to the extension of time. The cost of final surveys and preparation of the final estimate shall not be included in such charges.
10.10 Claims – The term “Claim” shall mean a written demand or assertion by the Contractor seeking, as a matter of asserted right, adjustment in the terms of the Contract Documents, payment of money, extension of time, or other relief with respect to the Contract Documents, or determination of other disputes or matters in question between the City and Contractor arising out of or related to the Contract Documents or the performance of the work, including claims alleging an error or omission.
A claim must be stated with specificity, including identification of the event giving rise to claim, the date of the event, and the asserted effect on contract sum and contract time. The claim shall include adequate supporting data. Adequate supporting data for a claim for an adjustment of the contract time shall include scheduling data demonstrating the impact of the event on the completion of the work.
Adequate supporting data for a claim for an adjustment of the contract sum shall include a detailed cost breakdown of the items allowed, isolating labor, material, and equipment costs, and providing detailed quantities and unit prices for changed work. If the exact amount of a claim is not ascertainable at the time such claim is made, the supporting data currently available shall be submitted. Supplemental data supporting the exact amount of the claim shall be submitted as soon as available.
Notwithstanding the making of any claim or the existence of any dispute regarding any claim, unless otherwise directed by the Engineer, the Contractor shall not cause any delay, cessation, or termination in the performance of the work, including portions of the work pertaining to a claim.
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10.11 Time Limit on Claims – Contractor shall submit any and all claims, together with adequate supporting data to the Engineer as soon as possible but not later than ten (10) working days after occurrence of the event giving rise to the claim, or the date the Contractor first recognized, or reasonably should have recognized, the condition giving rise to the claim, whichever is earlier. Contractor hereby expressly waives all claims not made within this time limit.
Contractor is expressly barred from asserting any claims of which the Contractor was aware, whether or not the exact amount of such claims was ascertainable, that is not submitted to the Engineer prior to the Contractor proceeding with the work.
10.12 City Response to Claims – The Engineer shall promptly review claims. If additional supporting data is deemed necessary, the Engineer shall request such additional data within ten (10) working days after receipt of the claim. The Contractor shall furnish such additional data no later than ten (10) working days after receipt of the City’s request. The Engineer shall render a decision promptly, but in any event, within thirty (30) working days after the receipt of the claim or the receipt of additional supporting data. If the amount of the claim is in excess of $50,000, the aforesaid thirty (30) working day period shall be sixty (60) working days. Failure of the Engineer to render a decision within the aforesaid thirty (30) or sixty (60) working day period shall be deemed a decision denying the claim and the last day of such period shall be the date of such decision. The decision of the Engineer shall be final and binding unless appealed in accordance with the General Provisions, Section 10.15, “Appeal of the Engineer’s Decision”.
10.13 Appeal of Engineer’s Decision – If Contractor disputes the Engineer’s decision of a claim, the Contractor shall, within thirty (30) calendar days of the decision, make a written appeal of the decision to the Engineer. The written appeal shall include all supporting data upon which the Contractor requests the City to modify its decision, including all documentation transmitted between the Contractor and the Engineer on the underlying claim. The Engineer shall make a good faith effort to resolve the claim prior to final completion of the Project. In the event the claim is not resolved prior to final completion, the Contractor’s claim shall be heard by the Director of Public Works prior to recommending final acceptance to the City Council. The Contractor’s administrative remedies under the Contract Documents shall be exhausted after the decision of the Director of Public Works is rendered. In case of disagreement with the decision of the Director of Public Works, the Contractor may pursue the resolution of the dispute by presenting a formal claim to the City.
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SECTION 11 – GUARANTY
11.01 Contractor’s Guaranty – Prior to final acceptance, the Contractor shall warrant and guaranty to the City that all work is in accordance with the Contract Documents and is not defective.
The guaranty shall be accompanied by a warranty bond for ten percent (10%) of the final contract sum, which shall warrant the quality of the work for a period of two (2) years after acceptance. The guaranty and warranty bond shall be in accordance with the Agreement Forms furnished in the Contract Documents.
11.02 Correction of Defective Work During the Guaranty Period – If within two (2) years after the date of City Council acceptance, or such longer period of time as may be prescribed by laws or regulations or by the terms of any applicable special guaranty required by the Contract Documents, any work is found to be defective, the Contractor shall promptly without cost to the City and in accordance with the City’s written instructions, either correct such defective work or if it has been rejected by the City, remove it from the site and replace it with non-defective work.
If the Contractor does not promptly comply with the terms of such instructions within ten (10) working days after written demand by the City, the City may have the defective work corrected. The City may also correct defective work immediately in cases of emergency where delay would cause serious risk of loss or damage. All direct, indirect and consequential costs of correcting defective work (including but not limited to fees and charges of engineers, architects, attorneys and other professionals) shall be absorbed by the Contractor.
The Contractor shall remove from the Project site portions of the work and materials which are not in accordance with the Contract Documents and which are neither corrected by the Contractor nor accepted by the City. If Contractor fails to pay the costs of such removal within ten (10) working days after written demand, the City may, without prejudice to other remedies, sell such materials at auction or at private sale, or otherwise dispose of such material. The Contractor shall be entitled to the proceeds of such sale, if any, in excess of the costs and damages for which the Contractor is liable to the City, including reasonable attorneys’ fees and expenses and compensation for the City’s services and expenses.
The City shall have the option, at its sole discretion and by notice to the Contractor, to accept defective work as defined in Section 4.18 – “Acceptance of Defective Work.“
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EATON PARK (BEHIND 3101 BRITTAN AVENUE) LANDSLIDE REPAIR PROJECT
SPECIAL PROVISIONS
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Special Provisions Eaton Park (Behind 3101 Brittan Avenue) Landslide Repair Project Page SP-1 Project No. C2403
SPECIAL PROVISIONS
These Special Provisions contain project specific requirements pertaining to the work, and as such, shall take precedence over the General Conditions portions of these Specifications. All costs associated with satisfying the requirements in these Special Provisions shall be included in the Contractor’s bid price and no additional compensation shall be made.
All work shall be done in accordance with the City Standard Specifications, City Standard Details, Caltrans Standard Specifications (where referenced), and the Contract Documents. The 2022 version of the Caltrans Standard Specifications (State Specifications) shall be used.
1. DESCRIPTION OF WORK
The work to be done under this contract includes but is not limited to:
• Landslide repair at Eaton Park (Behind 3101 Brittan Avenue) in the City of San Carlos.
• Minor earthwork and landslide grooming.
• Construction of a debris catchment fence.
• Erosion control.
• Coordination with residents.
• Temporary traffic control.
The Contractor shall furnish all materials, labor, tools, equipment, supervision, transportation, handling, storage, traffic control, permits, licenses, and all other incidentals necessary to complete the work successfully.
The work may also include: clearing, grubbing, removal of obstructions, tree removal and trimming, protection of existing utilities and appurtenances, and such other items required by the Project Plans and Specifications.
2. LOCATION
Work to be done under this contract is at Eaton Park (behind 3101 Brittan Avenue) in the City of San Carlos, as shown in the project plans.
3. QUALIFICATION OF BIDDERS
The Contractor must have three (3) years of experience involving landslide repairs of similar size and scope. The Contractor must submit a statement of qualifications detailing at least three (3) projects totaling a project value of at least $40,000.
4. DAYS AND HOURS OF OPERATION
The hours of operation shall be limited to the hours between 8:00 a.m. and 4:30 p.m.
Activities outside of those hours shall not generate objectionable noise, dust, or inconvenience to the public. Regular working days are from Monday through Friday except City legal holidays unless exception is granted by the City Engineer.
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5. CONTROL OF WORK
The Contractor shall, as the first order of work, coordinate with all residents and businesses seventy-two (72) hours in advance of any work.
The Contractor shall use only chalk-based marking paint for all construction information painted on the street, sidewalks, or any other visible surface.
6. LICENSES AND PERMITS
The Contractor and all Subcontractors shall obtain a business license from the City of San Carlos and shall hold current licenses for the craft that the business is contracting for as required by Federal, State, and Local laws.
The Contractor shall apply for any required permits, including encroachment and tree removal permits from the applicable agencies (with copies of the form and application submitted to the Engineer) within thirty (30) calendar days after the issuance of the Award of Contract Notification Letter and prior to beginning work in the affected areas.
The Contractor shall submit copies of the permits, once issued, to the Engineer. No additional time schedule will be granted to the Contractor for any delays resulting from the processing of these permits.
A City of San Carlos “Encroachment Permit” is required. As a Contractor working for the City, no fee will be assessed to obtain an Encroachment Permit for this project.
If the construction work will require any street trees to be trimmed, Contractor shall obtain a “Street Tree Permit” from the City of San Carlos Department of Planning. Applications for Street Tree Permits are available by calling the Department of Planning at (650) 802-4263. It is the Contractor’s responsibility to obtain fee information updates by calling the City Department of Planning.
A City of San Carlos “Hazardous Materials Storage System Permit” may be required for various construction activities. The Contractor is responsible for verifying to the requirements and fee schedule for storage of diesel fuel and/or hazardous materials by contacting the San Carlos Fire Department at (650) 802-4300. It is the Contractor’s responsibility to follow any additional requirements as required by the 2016 California Fire Code.
7. SAFETY AND HEALTH REGULATIONS
The Contractor shall comply with all applicable occupational safety and health standards, rules, regulations and orders established by Federal and State Agencies.
Any condition deemed to be an unsafe condition shall be immediately corrected by the Contractor. The failure of the City or its representatives to bring a potentially dangerous situation to the Contractor's attention shall not relieve the Contractor from the responsibility for providing a safe work area.
The Contractor shall be responsible for initiating, maintaining and supervising all safety precautions and safety programs in connection with the work and ensures compliance to all applicable safety and health regulations of Federal, State, and Local agencies.
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8. SAFETY OF PERSONS AND PROPERTY
The Contractor shall take all reasonable precautions for the safety of, and shall provide all reasonable protection to prevent damages, injury or loss to:
1. All employees, City personnel, residents on the project, and all others who may be affected thereby;
2. All the work and all materials and equipment to be incorporated therein, whether in storage on or off the site, under the care, custody or control of the Contractor or any of the Contractor’s Subcontractors;and
3. The work of the City or other Contractors.
The Contractor shall give all notices and comply with all applicable laws, ordinances, rules, regulations and lawful orders of any public authority bearing on the safety of persons or property or their protection from damage, injury or loss.
The Contractor shall erect and maintain, as required by existing conditions and the progress of the work, all reasonable safeguards for safety and protection, including posting danger signs and other warnings against hazards, promulgating safety regulations, and notifying owners and users of adjacent utilities.
The Contractor shall designate a Site Safety and Health Officer who is a responsible member of the Contractor’s organization and whose duty shall be the prevention of accidents. The Contractor shall submit the name of the Site Safety and Health Officer to the Engineer in writing. The Site Safety and Health Officer shall be responsible for preparation of a Health and Safety Plan.
The Health and Safety Plan shall detail the Contractors safety committee(s), safety rules, safety training, enforcement procedures, incentives, accident procedures and investigations, inspections, safety equipment and maintenance, hazardous materials (i.e. asbestos pipe) handling procedures, emergency action plan(s), alcohol and drug policies, confined space entry procedures, certification program and emergency retrieval procedures, 911 and emergency rescue services within jurisdiction of the work area, health providers and hospital emergency near the worksite.
9. STAGING/CONSTRUCTION AREA
The City has not designated a staging area for this project. Should a staging area be desired, the Contractor shall be responsible for securing such an area along with any and all permits and permissions that may be necessary from the City and/or private property owners. Proof of concurrence shall be provided to the City upon request. Any fencing or other protective means (if required or employed by the Contractor) shall be at the Contractor’s expense.
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10. CONTRACTOR’S PLANT AND EQUIPMENT
The Contractor shall at all times be responsible for the security of all plant and equipment it owns or controls. The City will not take any responsibility for missing or damaged equipment, tools or personal belongings.
11. TRAFFIC CONTROL
Construction shall be organized so as to cause the least possible inconvenience to traffic.
Traffic control shall comply with the 2022 Caltrans Standard Plans T9 through T14 (available at http://www.dot.ca.gov/hq/esc/oe/project_plans/HTM/stdplns-US-customary-unitsnew15.htm) Traffic control devices shall be furnished, placed, and maintained in accordance with the latest version of Part 6, Temporary Traffic Control, of the California Manual on Uniform Traffic Control devices (CAMUTCD) (available at https://dot.ca.gov/-/media/dotmedia/programs/safety-programs/documents/ca-mutcd/rev7/1-13-camutcd2014-introrev7.pdf ).
Traffic Control shall be provided for all project work areas on the street (such as those necessary for delivery of materials and staging) and shall be provided for the duration of the project.
The Contractor shall provide all required signs, barricades, lights, high-level flag trees, arrow boards, and other devices. The Contractor shall restrict construction activities to the following hours between 8:00 a.m. and 4:30 p.m.
No work shall be performed on Saturdays, Sundays, or designated legal holidays.
Exceptions may be made, at the Engineer’s discretion, to allow work at other times and on other days if required for the Contractor’s operations. In such cases, the Contractor shall have an alternate work schedule reviewed and authorized by the Engineer prior to commencement of work.
General Requirements:
1. The Contractor’s attention is directed to Section 9.20 of the General Provisions for additional requirements.
2. The Contractor shall submit a traffic control plan to the Engineer for review, including any requests for alternate work schedules or work hours. a. No work may begin under contract until the Traffic Control Plan has been approved by the Engineer. Time required for review and approval of the Traffic Control Plan shall not constitute a basis for timeextension.
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Special Requirements:
1. The Contractor assumes sole and complete responsibility for the job and site conditions, including safety of all persons and property, from start until final acceptance of the project. This requirement shall apply continuously twenty-four (24) hours per day and shall not be limited to normal working hours.
2. Streets shall not be closed unless authorized by the Engineer in writing at least 48 hours prior to the requested date. If street closure is approved, Contractor shall notify the following 48 hours prior to the streetclosure:
a. City’s project manager and inspector
b. City of San Carlos Police Department, (650)802-4277
c. City of San Carlos Fire Department, (650) 802-4300
d. City of San Carlos Garbage, Recycling, and Tree TrimmingHaulers e. Recology San Mateo County (650) 595-3900
f. Affected School Districts
g. Impacted residents and businesses,
3. If emergency or urgent street closures are required, the Contractor shall notify:
a. City’s project manager and inspector
b. City of San Carlos Police Department, (650)802-4277
c. City of San Carlos Fire Department, (650) 802-4300
4. The Contractor shall submit a schedule of traffic detours for street closure to the Engineer for review and approval. Noncompliance will result in suspension of work as outlined under Section 8.13, “Suspension of Work,” of the General Provisions.
5. Scheduling of night time or weekend work shall be subject to the authorization of the Engineer. Contractor shall specify dates on the construction schedule when night time or weekend work is proposed. A minimum of two (2) working days’ notice is required for any request to work at night or on weekends. No additional compensation for night or weekend work will be allowed therefor.
6. If construction will obstruct a bus stop, the Contractor shall notify the SamTrans Operations Control Center two (2) working days in advance at (650) 508-6200.
7. Access for local residents and businesses and all private property shall be maintained at all times. Signs shall be placed in front of commercial and industrial driveways to allow continual access. At the end of each working day these streets shall be reopened to through traffic with proper barricades, warning devices and temporary striping. If these streets are closed, the Contractor shall proceed expeditiously and with consideration for public convenience from the start of work to its completion.
8. Provide at least one (1) ten-foot (10’) minimum width through traffic lane in each direction.
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12. STORMWATER POLLUTION PREVENTION
Consistent with the requirements of the federal Clean Water Act, the Project is subject to water pollution prevention requirements, which include the implementation of a water pollution prevention plan and/or implementation of local stormwater requirements, and prohibit the discharge of pollutants from the Project site. The Contractor shall use appropriate Best Management Practices (BMPs) and source control techniques on the site at all times in order to prevent non-stormwater discharges from construction.
All work shall conform to the National Pollutant Discharge Elimination System (NPDES) General Permit for Stormwater Discharges Associated with Construction and Land Disturbance Activities (Order No. 2009-0009-DWQ, NPDES No. CAS000002) ("General Permit"), and the NPDES Municipal Regional Stormwater Permit (MRP) (Order No.
R2-2015-0049, NPDES No. CAS612008). The Contractor shall implement all applicable San Mateo Countywide Water Pollution Prevention Program (SMCWPPP) measures and BMPs. Failure to comply with the approved construction BMPs will result in the issuance of correction notices, citations, and/or a stop work order.
Prior to the start of any field work, the Contractor shall prepare a letter or plan which summarizes which BMPs and source control measures will be implemented on site to prevent non-stormwater discharges, and includes copies of any applicable California Department of Transportation Construction Site BMP Fact Sheets, or an approved equivalent.
The Contractor is responsible for furnishing, installing, constructing, inspecting, maintaining, removing, and disposing of the BMPs as necessary throughout the entirety of the project. The Contractor shall inspect BMPs regularly, and correct improperly installed, damaged, or ineffective BMPs immediately.
13. SANITATION FACILITIES AND UTILITIES
Contractor shall be responsible for providing bathrooms, wash stations and power, if needed. Portable bathrooms and wash stations shall be not be staged in the public right-of-way. Portable bathrooms and wash stations will be on trailers and removed from the work site by the end of each working day. The Contractor shall coordinate with CalWater to obtain a hydrant meter for dust control during the demolition.
14. WATER
Water for use during construction shall be furnished by the Contractor and all costs incurred including the water use, meter charges, meter/backflow preventer deposit, vehicles and containers needed in transporting water to the job site shall be paid by the Contractor. The Contractor’s attention is directed to Section 9.11 of the General Provisions for additional information.
15. POWER
All power for and in connection with work to be done under this contract shall be furnished and maintained by Contractor. The Contractor’s attention is directed to Section 9.12(h) of the General Provisions for additional information.
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16. DUST CONTROL
The Contractor shall furnish all labor, equipment and means required and shall carry out effective measures wherever and as often as necessary to prevent its operation from producing dust in amounts damaging to property or causing nuisance as defined by the Engineer.
The Contractor shall be responsible for any damage resulting from any dust originating from its operations.
The dust abatement measures shall be continued until the Contractor is relieved of further responsibility by the Engineer.
The work area shall be left in a neat and presentable condition at the end of each workday.
17. CLEANUP
Through all phases of construction, including suspension of work and until final acceptance of the project, the Contractor shall keep the worksite and other areas used by it in a neat and clean condition, and free from any accumulation of rubbish and debris.
Contractor shall properly dispose of all excess earth and debris off job site and clean up the work area at the end of each workday. The work area shall be left in a neat and presentable condition.
The Contractor shall keep its haul roads free from dirt, rubbish, and unnecessary obstructions resulting from its operations. Care shall be taken to prevent spillage on haul routes. Contractor shall obtain all required truck route permits. Any such spillage shall be removed immediately and the area cleaned by the Contractor.
Disposal of all rubbish and surplus materials shall be off the site of construction, at the Contractor’s expense, all in accordance with local codes and ordinances governing locations and methods of disposal, and in conformance with all applicable safety laws, and the requirements of the OSHA Safety and Health Standards for Construction.
The Contractor is advised that the disposal of solid waste, sewage, industrial waste, or other polluted waters into the public storm drain system is prohibited. Any fines or penalties levied against the City or Contractor for illicit discharges to the storm drain system as a result of the Contractor’s operation are the sole responsibility of the Contractor.
If the Contractor exceeds the number of days assigned to this contract, the Contractor shall continue to clean the area. When street cleaning is not performed to the satisfaction of the Engineer, the Engineer may have the area cleaned by City crews, and any incurred costs shall be deducted from the Contractor’s progress payments.
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18. CLEARING AND GRUBBING
All cleared and grubbed materials shall be hauled off and disposed outside of the right-ofway at a suitable location and in a lawful manner by the Contractor.
Unless shown on the plans, no trees shall be removed. Trees, limbs, and roots within the project area which interfere with the Contractor's operations may be trimmed, with authorization from the Engineer. Tree trimming shall only be performed by a qualified arborist or tree surgeon. Prior to any trimming being performed, the Contractor shall submit to the Engineer, for review, the qualifications of the proposed arborist or tree surgeon. Any tree roots one inch or greater in diameter which have to be removed or are damaged during construction operations shall be sawcut evenly and shall be treated with a heavy coat of commercially available water base asphalt emulsion sealing compound. If roots are to be left exposed for an extended period of time, all roots shall be covered immediately with two (2) layers of burlap or equivalent material and soaked regularly with water to ensure that all roots are kept moist for the duration of exposure. No tree shall be trimmed or removed without a permit from the Planning Department.
19. PROTECTION AND RESTORATION OF EXISTING IMPROVEMENTS The Contractor shall be responsible for the protection of public and private property adjacent to the Work and shall exercise due caution to avoid damage to such property.
The Contractor shall repair or replace all existing improvements which are not designated for removal (e.g., street sections, curbs, gutters, driveways, fences, walls, structures, landscaping, etc.) which are damaged or removed as a result of its operations. Repairs and replacements shall be at least equal to existing improvements, and shall match them in finish and dimensions.
Any damages to the private properties will be restored to the satisfaction of the property owners/Engineer within seven (7) days of the damage(s).
Damages within the public right-of-way will be restored to the satisfaction of the Engineer after work is completed.
20. EXISTING UTILITIES
The Contractor shall notify Underground Service Alert (U.S.A) at 1-800-642-2444 for field location of all utilities 48 hours prior to any excavation. In addition, the Contractor shall contact the Railroad Call Before You Dig (CBUD) at 1-800-336-9193 for field location of utilities when work is within the railroad tracks a minimum of forty-eight (48) hours prior to any work.
The Contractor shall be responsible for verifying the presence of utilities within the limits of work, as well as any changes in the limits that are made to accommodate the project, protecting all utilities including but not limited to traffic signal conductors, signal interconnect communication, and fiber optic cables that may be affected by construction activities (e.g., clearing and grubbing, excavation, trenching, etc.), and notifying the Engineer in writing of any conflicts prior to beginning any excavation.
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May 12, 2025 Packet Pg. 503
Special Provisions Eaton Park (Behind 3101 Brittan Avenue) Landslide Repair Project Page SP-9 Project No. C2403
The Contractor shall pothole to verify the location and/or elevation of existing utilities as marked by Underground Service Alert (U.S.A.) within the limits of work. The Contractor shall work with utility companies and inspectors to protect existing utility lines. The Contractor shall notify the Engineer three (3) working days in advance of the potholing operation. Once the utilities are exposed, the excavation shall not be backfilled until the Engineer has inspected and taken measurements of the utilities.
Unless otherwise indicated on the plans, a pothole shall have a maximum length of six (6) feet, maximum depth as indicated on the plans or as directed by the Engineer, and the width dimension shall be as required by the Contractor with authorization of the Engineer.
The Contractor will protect and assume liability for all existing or newly installed structures and lines from damage by Contractor’s forces during the construction period from the date of Notice to Proceed and the date of Final Acceptance.
All repairs of apparent or discovered utility facilities will be accomplished by the respective utility owners. The Contractor must coordinate with the utility companies to rewrap and/or repair their utility. All exposed existing telephone, gas, water, electrical, and other public utility facilities will receive an envelope of twelve inches (12”) of sand.
All painted markings including USA markings, marks placed by the Contractor, and marks placed by the City’s survey crew on street pavement, curbs, gutters and sidewalks shall be completely removed by the Contractor prior to completion of the project. All cost incurred to complete this work shall be deemed included in other items of work and no additional payment will be made thereof.
21. UTILITY COORDINATION
All relocations of apparent or discovered utility lines (e.g., AT&T, PG&E, SJWC, etc.) shall be accomplished by the forces of the appropriate utilities. The Contractor shall notify the appropriate utility at least forty-eight (48) hours in advance of working in the vicinity of any utilities in the project area.
Existing utilities shown on the plans are for information only and their locations are approximate. The Contractor shall assume full responsibility for the location of all existing utilities, whether or not shown on the plans, prior to the commencement of any construction activity (e.g., excavation, clearing and grubbing, etc.) which may damage any existing utilities. Furthermore, the Contractor shall protect and assume liability for all existing utilities, whether or not shown on the plans, and any newly installed structures and lines from damage by Contractor’s forces for the duration of the construction period (from the date of Notice to Proceed until the date of Final Acceptance).
The Contractor must allow utility companies to rewrap their utilities. All exposed existing or new telephone, gas, water electricity or other public utility facilities shall receive an envelope in all directions of twelve inches (12”) of sand surrounding said utility(s) within the backfill area. This envelope shall be placed by the Contractor. All utilities must be supported by the Contractor when trench is opened.
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May 12, 2025 Packet Pg. 504
Special Provisions Eaton Park (Behind 3101 Brittan Avenue) Landslide Repair Project Page SP-10 Project No. C2403
22. OBSTRUCTIONS
The City shall not be responsible for any impact to the Contractor of any restrictions that may be caused by the work of other agencies, or the requirements thereof.
In the event that gas, electricity, telephone, water or other utility facilities are encountered, the Contractor shall immediately notify the Engineer and make the necessary coordination to have these structures (vaults, manholes, risers, valves, etc.) removed, relocated, and/or adjusted as necessary by the respective utility company.
The Contractor is required to cooperate with forces engaged in utility work and shall schedule and conduct the work under the Contract in such a manner as to avoid any unnecessary delay or hindrance to the work of the utility companies.
If the Contractor causes damage to Traffic Signal Communication Cable(s), the Contractor shall replace at no cost to the City the complete run of Traffic Signal Communication Cable(s) to the next controller. No splicing of Traffic Signal Communication Cable(s) shall be allowed at pull box. No time extension shall be granted to re-pull/replace Traffic Signal Communication Cable(s).
23. PROTECTION OF PUBLIC SAFETY
If the Contractor encounters a condition where public safety is threatened the City’s representative shall be notified immediately.
24. NOTIFICATION OF RESIDENTS AND MERCHANTS
The Contractor shall perform the following tasks prior to commencement of the work:
A. Prepare and submit to the City, a notification letter, prior to time of construction, stating the nature of work and expected duration of construction activity affecting their property.
The City will have one week from the submittal date, to review and make suggested changes. The Contractor shall distribute the City approved letters via U.S. mail to provide a two week and seventy-two (72) hours advance notification to all residents and businesses impacted by construction.
B. Include Contractor's telephone number for the purpose of taking inquiries and complaints.
C. Submit a draft copy of the notification letter to City at Pre-Construction Conference.
D. The final format and wording of this letter shall be subject to approval of City.
If Contractor encounters any difficulty in obtaining resident’s or business manager’s permission to access the easement in order to perform the inspection, the Contractor shall contact the City for assistance. In such cases, Contractor shall provide a minimum of two (2) weeks’ notice to the City prior to the need to access private property. Contractor is responsible for scheduling work such that this two-week notification period does not interfere with the overall work schedule.
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May 12, 2025 Packet Pg. 505
Special Provisions Eaton Park (Behind 3101 Brittan Avenue) Landslide Repair Project Page SP-11 Project No. C2403
25. OWNER/CONTRACTOR MEETINGS
A. PRE-CONSTRUCTION CONFERENCE: A Pre-Construction Conference will be held on ZOOM within ten (10) working days after the date the Notice to Proceed is issued at the time and date described in the Notice to Proceed.
The conference will address the scope of work and the Contractor's proposed construction schedule, traffic control plan. At the Pre-Construction Conference the Contractor shall provide the following, in addition to the items specified in Section 8.09 of the General Provisions:
• The proposed construction schedule (for overallproject); • Two-week look-ahead construction schedule;
• Traffic Control Plan;
• Draft Notification Letter to Residents and Merchants; • Critical Project Submittals and/or Submittal Log Showing Anticipated Submittal Schedule
WEEKLY CONSTRUCTION MEETINGS: A weekly construction meeting will be held at the construction site or on ZOOM as determined by the City Project Manager/Inspector. The weekly meetings will be held on a day and time mutually satisfactory to the City and Contractor’s representative and/or superintendent.
26. CONSTRUCTION SCHEDULE
The Contractor shall submit to the Engineer, for review, a construction schedule in Critical Path Method (CPM) format with accompanying bar chart setting forth the sequence in which construction will proceed. In addition, the Contractor shall submit an updated CPM schedule for review along with the monthly request for partial payment. The City may, at its sole discretion, withhold partial payment until an updated CPM schedule is submitted.
27. DAILY WORK REPORTS
The Contractor shall provide the City Inspector with daily work reports at the beginning of each working day for a report of the previous working day. The form shall conform to that which is provided in Appendix A. The daily work report shall include at least three (3) photos.
28. SUBMITTALS
The Contractor shall provide one electronic copy in PDF format of the construction submittals. Each submittal shall be numbered. Re-submittals shall include the original submittal number followed by a letter indicating the revision (i.e. “A” for the first revision, “B” for the second revision). Submittals shall be provided as required by the Contract Documents. The Contractor shall be responsible for conforming to the requirements of the specifications. The Contractor shall provide, at a minimum, the following submittals to the City within twenty (20) calendar days after the issuance of the Award of Contract Notification Letter and prior to beginning work.
Each submittal item shall include a signed cover sheet, of which a template will be provided by the City. The cover sheet shall be filled out completely and legibly.
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May 12, 2025 Packet Pg. 506
Special Provisions Eaton Park (Behind 3101 Brittan Avenue) Landslide Repair Project Page SP-12 Project No. C2403
GP – General Provisions, SP – Special Provisions, TP – Technical Provisions
ITEM DESCRIPTION SPECIFICATION SECTION
1. Construction Schedule GP 8.05 and SP 30
2. Traffic Control Plan GP 9.20 and SP 11
3. Notification Letter SP 24
4. Water Pollution Control Plan GP 9.12 and SP 12
5. Designation of Site Safety and Health Officer(s) SP 7
6. Health and Safety Plan SP 7
7. Daily Work Report SP 27
8. Staging Area (if applicable) GP 9.09
9. CAL/OSHA Excavation Permit GP 9.21
Material Submittal List. – The names of the manufacturers/producers of the materials proposed by the Contractor for use under this contract shall be submitted to the Engineer, for review prior to beginning of work. The manufacturer's/ producer’s, materials, test results, specifications and/or certificates of compliance shall be submitted for all applicable products on the list, and shall be dated no earlier than six (6) months from the award date.
ITEM DESCRIPTION SPECIFICATION SECTION
10. Debris catchment fence TP 10
11. Fiber Roll TP 14
Additional Submittals. – The lists provided are intended to be comprehensive but no claim for their completeness is implied, and submittal of each and every item on the lists shall not relieve the Contractor of supplying all information needed, or of complying with any of the other requirements of the specifications. Revised lists may be issued and items may be added to the list supplied.
29. CLEANING OF WORK AREA
The Contractor shall clean the work area and leave no excess of materials from thermoplastic by end of each working day.
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May 12, 2025 Packet Pg. 507
EATON PARK (BEHIND 3101 BRITTAN AVENUE) LANDSLIDE REPAIR PROJECT
TECHNICAL PROVISIONS
Prepared by
ENGEO Incorporated
2633 Camino Ramon, Suite 250
San Ramon, CA 94583
(925) 866-9000
Project No. 13387.000.033
November 13, 2024
Revised April 25, 2025
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May 12, 2025 Packet Pg. 508
City of San Carlos Landslide Repair
Eaton Park (Behind 3101 Brittan Avenue) Technical Provisions November 13, 2024
Revised April 25, 2025
This Page Intentionally Left Blank
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May 12, 2025 Packet Pg. 509
City of San Carlos Landslide Repair
Eaton Park (Behind 3101 Brittan Avenue) Technical Provisions November 13, 2024
Revised April 25, 2025
TABLE OF CONTENTS
SECTION 1 – MOBILIZATION .................................................................................. TP-1 SECTION 2 – NOTIFICATION OF RESIDENTS....................................................... TP-3 SECTION 3 – TEMPORARY UTILITIES AND FACILITIES....................................... TP-5 SECTION 4 – PROTECTION OF EXITING FACILITIES........................................... TP-7 SECTION 5 – CONTRACTOR’S SUBMITTALS.......................................................TP-13 SECTION 6 – QUALITY CONTROL.........................................................................TP-22 SECTION 7 – WATER POLLUTION CONTROL......................................................TP-29 SECTION 8 – CLEARING AND GRUBBING............................................................TP-34 SECTION 9 – HAND GROOMING-BACKFILLING RILLS, TAPERING SCARP, ENGINEERED FILL PLACEMENT ..............................................................TP-36 SECTION 10 – DEBRIS CATCHMENT FENCE.......................................................TP-41 SECTION 11 – EROSION CONTROL......................................................................TP-44 SECTION 12 – REMOVAL OF DEBRIS FROM EXISTING V-DITCH AND EXISTING CATCH BASIN INTAKE GRATE..................................................................TP-47
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May 12, 2025 Packet Pg. 510
City of San Carlos Landslide Repair
Eaton Park (Behind 3101 Brittan Avenue) Technical Provisions November 13, 2024
Revised April 25, 2025
This Page Intentionally Left Blank
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May 12, 2025 Packet Pg. 511
City of San Carlos Landslide Repair
Eaton Park (Behind 3101 Brittan Avenue) Technical Provisions Page | TP-1 November 13, 2024
Revised April 25, 2025
SECTION 1 – MOBILIZATION
PART 1 – GENERAL
1.01 WORK INCLUDED
A. The Contractor will provide labor, materials, and equipment to prepare the site for the timely start and efficient completion of all Work. This includes obtaining any necessary licenses and permits, and providing required submittals, including, but not limited, to a project schedule.
B. The Contractor is advised that there may be insufficient area within the construction zone to provide parking, staging for material, and storage of equipment.
C. The Contractor will obtain all bonds, all Contractor-acquired permits, licenses, agreements, and certifications for the Project.
D. The Contractor will furnish and erect all needed construction facilities, fencing, project signage, and project security for the Project.
E. The Contractor will take pre-construction photographs and video recordings of existing conditions and surface features.
F. The Contractor will prepare progress schedules and reports, Contract meetings, and Record Drawings.
PART 2 – PRODUCT
NOT USED
PART 3 – EXECUTION
NOT USED
PART 4 – MEASUREMENT AND PAYMENT
The Contract lump-sum price paid for Mobilization shall include full compensation for furnishing all labor, materials, tools, equipment, and incidentals, and for doing all the Work involved in mobilization, as specified in this section, as shown on the plans, as specified in the specifications and the special provisions, and as directed by the Engineer, and no additional compensation will be allowed therefor.
Any amount larger than 4 percent of the total bid will be retained until such time that demobilization is complete.
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May 12, 2025 Packet Pg. 512
City of San Carlos Landslide Repair
Eaton Park (Behind 3101 Brittan Avenue) Technical Provisions Page | TP-2 November 13, 2024
Revised April 25, 2025
Payments for the lump-sum item for Mobilization shall be determined based on the percentage of the bid item Work completed, as determined by the Engineer at the time the progress payment is prepared.
END OF SECTION
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May 12, 2025 Packet Pg. 513
City of San Carlos Landslide Repair
Eaton Park (Behind 3101 Brittan Avenue) Technical Provisions Page | TP-3 November 13, 2024
Revised April 25, 2025
SECTION 2 – NOTIFICATION OF RESIDENTS
PART 1 – GENERAL
1.01 WORK INCLUDED
A. This Work shall include furnishing and distributing advance notice flyers to residents and businesses on all streets and including side/cross streets adjacent, and all emergency, public transportation, and garbage/recycle collection services where Contract Work is to be performed. Notices shall be consistent with dates provided and posted on “No Parking Tow Away” signs.
B. Notifications shall include at least the following information.
1. Identification of Contractor(s) including emergency contact name(s) and phone number(s)
2. Description of Work
3. Dates and times of construction
4. Information regarding street closures and/or detouring C. The contractor shall submit to the City an advance notice flyer in the form of a letter or door hanger for review and approval. The City will review and make suggested changes to the letter and/or flyer within one week from the time of submittal from the Contractor.
D. The contractor shall distribute a City approved two-week and seventy-two (72) hour advanced notice flyer.
PART 2 – PRODUCT
2.01 ADVANCE NOTICE FLYERS
Flyer shall contain a general description of the Work to be done, a schedule identifying the street segment and date that Work is to be performed, and any restrictions that will be imposed as a result of the Work.
2.02 NO PARKING SIGNS
City will provide “No Parking” signs for the Contractor’s use on this Project. The Contractor shall arrange for the pickup of signs not less than seven (7) days prior to being needed.
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May 12, 2025 Packet Pg. 514
City of San Carlos Landslide Repair
Eaton Park (Behind 3101 Brittan Avenue) Technical Provisions Page | TP-4 November 13, 2024
Revised April 25, 2025
PART 3 – EXECUTION
3.01 DISTRIBUTION OF FLYERS
A. Two-week advance notice flyers shall be distributed by U.S. mail and seventy-two (72) hour advance notice flyers can be hand delivered by the Contractor to residents, schools, or businesses along the impacted streets, including side/cross streets adjacent in advance of construction. Seventy-two (72) hour advance notices shall also be placed on the front window of all vehicles parked against the curb. If different notices are used for different areas, the Contractor shall take care to deliver the appropriate notice to the correct location. In the vicinity of school areas, Contractor shall coordinate with City Staff and school principals to notify the parents of any changes in traffic patterns, detours, or parking restrictions. The notification shall include a copy of the approved Traffic Control Plan or detours around the school area.
B. Notification shall consist of a procedure of written two-week notices by U.S. mail and door-to-door notifications seventy-two (72) hours prior to starting work for every phase of construction (Pavement repairs, concrete work, grinding, AC installation, slurry seal, striping, etc.).
PART 4 – MEASUREMENT AND PAYMENT
Payment for complying with the provisions for Notification of Residents, as well as for furnishing all related labor, materials, tools, equipment, and incidentals for doing all the Work identified in this section shall be considered, as included in the Contract, lump sum paid for the mobilization item, and no additional compensation shall be made.
END OF SECTION
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May 12, 2025 Packet Pg. 515
City of San Carlos Landslide Repair
Eaton Park (Behind 3101 Brittan Avenue) Technical Provisions Page | TP-5 November 13, 2024
Revised April 25, 2025
SECTION 3 – TEMPORARY UTILITIES AND FACILITIES
PART 1 – GENERAL
1.01 SUMMARY
A. It shall be the Contractor's responsibility to provide labor and equipment that is adequate for the performance of the Work under this Contract within the time specified. All equipment shall be kept in satisfactory operating condition and shall be capable of safely and efficiently performing the required Work.
1.02 POWER AND LIGHTING
A. Power: The Contractor shall provide all necessary temporary power, including fuel, required for its operations under the Contract, including operation of traffic control devices, lighting, etc., and shall provide and maintain all temporary power lines required to perform the Work in a safe and satisfactory manner.
B. Construction Lighting: All Work conducted at night or under conditions of deficient daylight shall be suitably lighted to ensure proper Work and to afford adequate facilities for inspection and safe working conditions. All construction lighting shall be shielded to reduce light from affecting non-work areas.
C. Approval of Electrical Connections: All temporary connections for electricity shall be subject to approval of the City, the Engineer and the power company representative, and shall be removed in like manner at the Contractor's expense prior to final acceptance of the Work by the City.
D. Separation of Circuits: Unless otherwise permitted by the Engineer, circuits separate from lighting circuits shall be used for all other power purposes.
E. Construction Wiring: All wiring for temporary electric light and power shall be properly installed and maintained and shall be securely fastened in place. All electrical facilities shall conform to the requirements of Title 8, Industrial Relations, Subchapter 5, Electrical Safety Orders, California Administrative Code; and Subpart K of the OSHA Safety and Health Standards for Construction.
1.03 WATER SUPPLY
A. General: The Contractor shall be responsible for making necessary arrangements for obtaining construction water, and shall include the cost of obtaining and use of water in the various bid prices for the Project.
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May 12, 2025 Packet Pg. 516
City of San Carlos Landslide Repair
Eaton Park (Behind 3101 Brittan Avenue) Technical Provisions Page | TP-6 November 13, 2024
Revised April 25, 2025
1.04 SANITATION
A. Toilet Facilities: Fixed or portable chemical toilets shall be provided wherever needed for the use of employees and shall be regularly maintained to provide clean, sanitary conditions.
B. Sanitary and Other Organic Wastes: The Contractor shall establish a regular, twice weekly, collection of all sanitary and organic wastes. All wastes and refuse from sanitary facilities provided by the Contractor or organic material wastes from any other source related to the Contractor's operations shall be disposed of away from the site in a manner satisfactory to the Engineer and in accordance with all laws and regulations pertaining thereto.
PART 2 – MATERIALS
NOT USED
PART 3 – EXECUTION
NOT USED
PART 4 – MEASUREMENT AND PAYMENT
Payment for complying with the provisions for Temporary Utilities and Facilities, as well as for furnishing all related labor, materials, tools, equipment, and incidentals for doing all the Work identified in this section shall be considered, as included in the Contract, lump sum paid for the mobilization item, and no additional compensation shall be made.
END OF SECTION
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May 12, 2025 Packet Pg. 517
City of San Carlos Landslide Repair
Eaton Park (Behind 3101 Brittan Avenue) Technical Provisions Page | TP-7 November 13, 2024
Revised April 25, 2025
SECTION 4 – PROTECTION OF EXISTING FACILITIES
PART 1 – GENERAL
1.01 SUMMARY
A. The Contractor shall protect all existing utilities and all other improvements not designated for removal and shall restore damaged or temporarily relocated utilities and improvements to a condition equal to or better than they were prior to such damage or temporary relocation, all in accordance with requirements of the Contract Documents.
B. The Contractor shall verify the exact locations and depths of all utilities shown and the Contractor shall make exploratory excavations of all utilities that may interfere with the Work. All such exploratory excavations shall be performed as soon as practical after award of Contract and, in any event, a sufficient time in advance of construction to avoid possible delays to the Contractor's Work. When such exploratory excavations show the utility location as shown to be in error, the Contractor shall so notify the Engineer, and shall incorporate updated utility locations into the Project Record Drawings.
C. In the event it is necessary to respond with City crew in lieu of the Contractor to repair damages done to any City facilities caused by the Contractor’s operations or as a consequences thereof, there shall be a minimum mobilization cost fee of $500 for administrative overhead, billing, and equipment use in addition to the actual hourly overhead rate (including benefits) billed for City employees and any materials costs. The Contractor shall be obligated to pay this amount separately to the City prior to the completion of the Project and retention payment. The use of City crews will be at the discretion of the City.
D. If a hazardous condition is observed and the City notifies the Contractor either directly or by telephone, the Contractor shall correct the condition immediately. If the Contractor fails to correct the condition immediately, the City reserves the right to call a local supplier(s) or Contractor to install the necessary measures such as lights, barricades, etc. The cost involved shall be deducted from any money due (or to become due) to the Contractor.
E. Contractor shall perform a pre-construction photo survey to document the condition of existing improvements. The Contractor shall be responsible to adequately document the condition for size, kind, quantity, and the extent of existing improvements. Photographs shall be for the purpose of documenting the pre-existing condition at the site of Work. All surveys shall be delivered to the City prior to commencing Work. In the absence of adequate pre-construction documentation, the Engineer’s judgment shall be final.
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May 12, 2025 Packet Pg. 518
City of San Carlos Landslide Repair
Eaton Park (Behind 3101 Brittan Avenue) Technical Provisions Page | TP-8 November 13, 2024
Revised April 25, 2025
1.02 RIGHTS-OF-WAY
A. The Contractor shall not do any Work that would affect any gas, sewer, storm drain, waterline, recycled waterline, telephone, railroad, or electric line, any fence, or any other structure, nor shall the Contractor enter upon the rights-of-way involved until notified by the Engineer that the City has secured authority therefore from the proper party. After authority has been obtained, the Contractor shall give said party due notice of its intention to begin Work, and shall give said party convenient access during the Contractor’s Work. When two or more Contracts are being executed at one time on the same or adjacent land in such manner that Work on one Contract may interfere with that on another, the City shall determine the sequence and order of the Work. When the territory of one Contract is the necessary or convenient means of access for the execution of another Contract, such privilege of access or any other reasonable privilege may be granted by the City to the Contractor so desiring, to the extent, amount, in the manner, and at the times permitted. No such decisions as to the method or time of conducting the Work or the use of territory shall be made the basis of any claim for delay or damage, except as provided for temporary suspension of the Work.
1.03 PROTECTION OF SURVEY MONUMENTS OR ROADWAY MARKERS
A. Monuments placed by Surveyors must be preserved, in accordance with State Business & Professions Code Section 8771. The Contractor shall not destroy, remove, or otherwise disturb any existing survey monuments, markers or other existing street or roadway markers without proper authorization. No pavement grinding, breaking, or excavation shall be started until all survey or other permanent marker points that will be disturbed by the construction operations have been properly referenced for easy and accurate restoration. It shall be the Contractor's responsibility to notify the proper representatives of the City of the time and location that Work will be done. Such notification shall be sufficiently in advance of construction so that there will be no delay due to waiting for survey points to be satisfactorily referenced for restoration.
B. If monuments are disturbed by the Contractor, the Contractor shall hire a Licensed Surveyor to prepare and process a corner record or record of survey, as appropriate, through the City to reset the monuments. Surveyor records shall show the position of replacement monuments and post construction position of other monuments within the Work area post-construction. The cost of preparing the necessary survey documents, processing the survey documents, and resetting the monuments shall be paid for by the Contractor. This Work shall be completed prior to Project acceptance and additional monies will be withheld for this Work prior to the release of retention.
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May 12, 2025 Packet Pg. 519
City of San Carlos Landslide Repair
Eaton Park (Behind 3101 Brittan Avenue) Technical Provisions Page | TP-9 November 13, 2024
Revised April 25, 2025
1.04 EXISTING UTILITIES AND IMPROVEMENTS
A. General: The Contractor shall protect all Underground Utilities and other improvements which may be impaired during construction operations. It shall be the Contractor's responsibility to ascertain the actual location of all existing utilities and other improvements that will be encountered in its construction operations, and to see that such utilities or other improvements are adequately protected from damage due to such operations. The Contractor shall take all possible precautions for the protection of utility lines to provide for uninterrupted service and to provide such special protection as may be necessary. Protection of existing utilities may include soil stabilization.
B. Culverts: Existing culverts in and adjacent to the Work area shall be protected from disturbance by the Contractor’s activities relating to the Work. The Engineer shall be notified immediately if an existing culvert is disturbed as a result of construction activities. All costs associated with disturbing existing culverts shall be borne by the Contractor.
C. Utilities to be Moved: In case it shall be necessary to move the property of any public utility or franchise holder, such utility company or franchise holder will, upon request of the Contractor, be notified by the City to move such property within a specified reasonable time. When utility lines that are to be removed are encountered within the area of operations, the Contractor shall notify the Engineer a sufficient time in advance for the necessary measures to be taken to prevent interruption of service.
D. Where the proper completion of the Work requires the temporary or permanent removal and/or relocation of an existing utility or other improvement which is shown, the Contractor shall remove and, without unnecessary delay, temporarily replace or relocate such utility or the facility. In all cases of such temporary removal or relocation, restoration to former location shall be accomplished by the Contractor in a manner that will restore or replace the utility or improvement to its former location and in new condition.
E. City's Right of Access: The right is reserved to the City and to the owners of public utilities and franchises to enter at any time upon any public street, alley, right-of-way, or easement for the purpose of making changes in their property made necessary by the Work of this Contract.
F. Underground Utilities Shown or Indicated: Existing utility lines that are shown or the locations of which are made known to the Contractor prior to excavation and that are to be retained, and all utility lines that are constructed during excavation operations shall be protected from damage during excavation and backfilling and, if damaged, shall be immediately repaired by the Contractor.
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May 12, 2025 Packet Pg. 520
City of San Carlos Landslide Repair
Eaton Park (Behind 3101 Brittan Avenue) Technical Provisions Page | TP-10 November 13, 2024
Revised April 25, 2025
G. Underground Utilities Not Shown or Indicated: Contractor is responsible to verify location of all utilities, whether shown in the plans or not. All costs for locating, replacement, and/or repair of existing utilities shall be borne by the Contractor.
H. In the event that the Contractor damages any existing utility lines, a written report thereof shall be made immediately to the Engineer.
I. All water services that are damaged during construction of trenching operations shall be reconstructed from the corporation stop to the meter (for small diameter services or reconstructed from the gate valve to the meter (for larger diameter services), and all services shall be sleeved with PVC pipe prior to backfilling.
J. Approval of Repairs: All repairs to a damaged improvement are subject to inspection and approval by an authorized representative of the improvement owner before being concealed by backfill or other Work.
K. Maintaining in Service: All oil and gasoline pipelines, power, and telephone or other communication cable ducts, gas and water mains, irrigation lines, sewer lines, storm drain lines, poles, and overhead power and communication wires and cables encountered along the line of the Work shall remain continuously in service during all the operations under the Contract, unless other arrangements satisfactory to the Engineer are made with the owner of said pipelines, duct, main, irrigation line, sewer, storm drain, pole, or wire or cable. The Contractor shall be responsible for and shall repair all damage due to the Contractor’s operations, and the provisions of this section shall not be abated even in the event such damage occurs after backfilling or is not discovered until after completion of the backfilling.
L. Pipeline Connections. The Contractor shall make all necessary connections to the existing pipelines. No connections to the existing system shall be made unless authorized in writing by the City or Engineer.
M. Repairing couplings on sanitary sewer laterals and water services are not allowed.
All repairs shall be completed to the nearest existing pipe joint, asbestos cement (ACP) sanitary sewer laterals shall be taken back to the nearest existing joint and shall not cut ACP. All removed pipe material shall be disposed of by the Contractor per state and local requirements. All costs for disposal of existing materials shall be borne by the Contractor
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May 12, 2025 Packet Pg. 521
City of San Carlos Landslide Repair
Eaton Park (Behind 3101 Brittan Avenue) Technical Provisions Page | TP-11 November 13, 2024
Revised April 25, 2025
1.05 TREES WITHIN STREET RIGHTS-OF-WAY AND PROJECT LIMITS A. General: The Contractor shall exercise all necessary precautions so as not to damage or destroy any trees or shrubs, including those lying within street rights-of-way and Project limits, and shall not trim or remove any trees unless such trees have been approved for trimming or removal by the City or other jurisdictional agency. All existing trees and shrubs which are damaged during construction shall be trimmed or replaced by the Contractor under the directions of an arborist certified by the Western Chapter of the International Society of Arboriculture hired by the Contractor or a certified tree company hired by the Contractor to the satisfaction of the City and/or agency. Tree trimming and replacement shall be accomplished in accordance with the following paragraphs.
B. Trimming: The natural shape and form of the tree shall be preserved and enhanced; no stubs or splits or torn branches left; no topping or drop-crotching; and clean cuts shall be made close to the trunk or large branches.
C. Replacement: The Contractor shall immediately notify the City and/or other jurisdictional agency if any tree is damaged by the Contractor's operations. If, in the opinion of the City or said other agency, the damage is such that replacement is necessary, the Contractor shall replace the tree at its own expense. The size of the trees shall be not less than 1 inch in diameter nor less than 6 feet in height.
Fines will be assessed against the Contractor for trees removed without the City's prior written approval. The minimum amount of fine or restitution to the City will be the replacement of the tree removed, with one of equal or greater size and maturity and as approved by the City. Larger fines may be assessed against the Contractor depending upon the circumstances and type of tree removed, especially in the case of oak trees, and/or those trees listed on the City of San Carlos' and/or County of San Mateo’s Historical Tree Lists.
D. Any roots encountered greater than 2 inches in diameter shall be performed under the direct supervision of, and in conformance with, the recommendations of an arborist certified by the Western Chapter of the International Society of Arboriculture.
E. The Contractor shall furnish all tools and equipment and employ sufficient trained personnel to operate all equipment and perform all handwork efficiently and skillfully.
F. The Contractor shall be held responsible for any damage to trees, vegetation, or private property caused by its construction operations.
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Revised April 25, 2025
1.06 NOTIFICATION BY CONTRACTOR
A. Prior to any excavation in the vicinity of any existing underground facilities, including all water, sewer, storm drain, gas, petroleum products, or other pipelines; all buried electric power, communications, or television cables; all traffic signal and street lighting facilities; and all roadway and state highway rights-of-way, the Contractor shall notify the Underground Service Alert agency and the respective authorities representing the owners or agencies responsible for such underground facilities not less than 48 hours prior to excavation so that a representative of said owners or agencies can be present during such Work if they so desire.
PART 2 – MATERIALS
NOT USED
PART 3 – EXECUTION
NOT USED
PART 4 – MEASUREMENT AND PAYMENT
Payment for complying with the provisions for Protection of Existing Facilities, as well as for furnishing all related labor, materials, tools, equipment, and incidentals for doing all the Work identified in this section shall be considered, as included in the Contract, lump sum paid for the mobilization item, and no additional compensation shall be made.
END OF SECTION
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Eaton Park (Behind 3101 Brittan Avenue) Technical Provisions Page | TP-13 November 13, 2024
Revised April 25, 2025
SECTION 5 – CONTRACTOR SUBMITTALS
PART 1 – GENERAL
1.01 SUMMARY
A. This section describes general requirements for submittals for the Work.
1.02 PROCEDURES
A. Submit at Contractor’s expense, Schedule of Shop Drawing and Sample Submittals, Safety Plans, Progress Schedules, Product Data, Shop Drawings, Samples, Substitution Requests, Traffic Control Plans, Construction Staging Area Plan, and Project Record Documents, and all other submittals required by the Contract Documents. Submit these submittals to Engineer for review and approval.
B. Use a submittal transmittal form, in duplicate, containing:
1. Date, revision date, and submittal log number.
2. Project title.
3. Contractor’s name and address and job number.
4. Specification Section clearly identified.
5. The quantity of each Shop Drawing, Product Data, and Samples submitted.
6. Notification of deviations from Contract Documents.
7. Materials safety data sheet (MSDS) for each item complying with OSHA’s Hazard Communication Standard 29 CFR 1910.1200.
8. Other pertinent data.
C. Where manufacturer’s standard drawings or data sheets are used, they shall be marked clearly to show those portions of the data that are applicable to this Project.
Submittals shall be submitted based on each Technical Specification Section.
Submittals containing information about more than one Specification Section will be returned for resubmittal. Submittals shall include all information requested by each Specification Section. (No partial submittals.) Incomplete submittals will be returned not reviewed by Engineer. Provide a log number and reference to Specifications Section and/or Plan sheets and details, for each submittal for ease of identification of submittal. Submittal shall include:
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Revised April 25, 2025
1. Date and revision dates.
2. Revisions, if any, identified.
3. Project Title and number.
4. The names of: Engineer, Contractor, Subcontractor, Supplier, Manufacturer, and separate detailer, when pertinent.
5. Identification of product material by location within the Project.
6. Relation to adjacent structure or materials.
7. Field dimensions, clearly identified as such.
8. Specification Section number and applicable detail reference numbers on the drawings.
9. Applicable standards, such as ASTM, ANSI, FS, NEMA, SMACNA or ACI.
10. A blank space on each Drawing or data sheet, 5 inches by 4 inches, for the Engineer’s stamp.
11. Identification of deviations from Contract Documents.
12. Contractor’s stamp, initialed or signed, with language certifying the review of submittals, verification of field measurements, construction criteria and technical standards in compliance with Contract Documents.
D. The data shown on the Shop Drawings shall be complete with respect to quantities, dimensions, specified performance and design criteria, materials, and similar data to show the Engineer the materials and equipment the Contractor proposes to provide and to enable the Engineer to review the information for the limited purposes specified below. Samples shall be identified clearly as to material, supplier, pertinent data such as catalog numbers, and the use for which it is intended and otherwise, as Engineer may require to enable Engineer to review the submittal. The number of each Sample to be submitted will be as specified in the Specifications.
E. Substitutions:
1. Substitution for those equipment, procedures, materials, and/or products specified shall only be permitted when the proposed unnamed “equal” product or material to be furnished is both equal in quality and utility and after the Contractor has complied with the following provisions.
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Eaton Park (Behind 3101 Brittan Avenue) Technical Provisions Page | TP-15 November 13, 2024
Revised April 25, 2025
i. All substitutions shall be reviewed by the City.
ii. The City must approve such substitution in writing prior to its incorporation into the Work.
iii. Unless otherwise authorized in writing by the City, the Contractor shall, prior to award and placing any purchase orders, and at least thirty (30) calendar days before it requires approval of any such alternative item, submit to the City sufficient data, drawings, samples, literature, or other detailed information as will demonstrate to the City that the proposed substitute is equal in quality and utility to the equipment, materials, procedures, and/or products specified.
2. Within thirty (30) calendar days following receipt of all requested information from the Contractor, the City will determine whether the proposed alternative is equal in quality and utility and meets the requirements of the Contract and will inform the Contractor in writing of such determination. The burden of substantiating the quality and utility of alternatives shall be upon the Contractor, and the Contractor shall furnish all necessary information requested and required by the City. The City will be the sole judge as to the quality and utility of alternative equipment, materials and/or products, and the City’s decision shall be final. An acceptance by the City of a substitution shall not relieve the Contractor from complying with the requirements of the Project Drawings and Specifications. Acceptance by the City shall not relieve the Contractor from full responsibility for the efficiency, sufficiency and quality and performance of the substitute equipment, materials, procedures and/or products, in the same manner and degree as the equipment, materials, procedures and/or products specified by name.
3. Failure of the Contractor to submit proposed substitutions for review in the manner described above and within the time prescribed shall be sufficient cause for rejection by the City of any other proposed substitutions.
4. In determining whether a proposed product is equal in quality and utility, the City is not restricted to such basic issues as performance and durability, but may consider any other issues that the City, in the discretion of the City, deems appropriate. Said issues may, but are not required to include, nor are they limited to, such additional factors as comparable performance, reliability, efficiency or operation, ease of operation, adaptability, ease of maintenance, capital costs, life-cycle costs, operational characteristics, costs of training personnel, maintenance history, warranties, problems created by the resulting overall warranty system, availability of qualified service, availability of parts, the history of any supplier, and compatibility with existing facilities.
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Eaton Park (Behind 3101 Brittan Avenue) Technical Provisions Page | TP-16 November 13, 2024
Revised April 25, 2025
5. No one factor or group of factors, including such issues as savings on capital costs, shall be determinative of whether the proposed product or material is equal in quality and utility. The decision of the City shall be based on those factors deemed by the City to be relevant and any data, drawings, samples, literature or other detailed information furnished by the Contractor with respect to the proposed substitution.
6. Each decision as to whether a product or material is equal in quality and utility shall be made by the City on a case-by-case basis.
7. The Contractor shall be responsible for any and all costs, including consultant costs, incurred by the City with respect to the proposed substitution that exceed the costs inherent in the normal and reasonable review of drawings and other standard data, information, and documents concerning any proposed substitution. The Contractor shall be responsible for this cost, regardless of whether or not the substitution is approved by the City.
F. Submittal coordination and verification is the responsibility of Contractor; this responsibility shall not be delegated in whole or in part to subcontractors or suppliers. Before submitting each Shop Drawing or Sample, Contractor shall have reviewed and coordinated each Shop Drawing or Sample with other Shop Drawings and Samples and with the requirements of the Work and the Contract Documents, and shall have determined and verified:
1. All field measurements, quantities, dimensions, specified performance criteria, installation requirements, materials, catalog numbers, and similar information with respect thereto;
2. All materials with respect to intended use, fabrication, shipping, handling, storage, assembly, and installation pertaining to the performance of the Work; and
3. All information relative to Contractor’s sole responsibilities and of means, methods, techniques, sequences and procedures of construction and safety precautions and programs incident thereto.
G. Contractor’s submission to City or to Engineer of a Shop Drawing or Sample submittal will constitute Contractor’s representation that it has satisfied its obligations under the Contract Documents, and as set forth immediately above, with respect to Contractor’s review and approval of that submittal.
H. Designation of Work “by others”, if shown in submittals, shall mean that Work will be responsibility of Contractor rather than subcontractor or supplier who has prepared submittals.
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Eaton Park (Behind 3101 Brittan Avenue) Technical Provisions Page | TP-17 November 13, 2024
Revised April 25, 2025
I. The Contractor shall sign a statement with each submittal, certifying that the submittal has been checked by the Contractor and is in conformance with the Specifications. Any submittal received without this certification shall be returned AMEND AND RESUBMIT and count as one submittal under R.5.i of this Specification Section.
J. After review by City or Engineer of each of Contractor’s submittals, two (2) sets of material will be returned to Contractor with actions defined as follows.
1. NO EXCEPTIONS TAKEN – A formal revision and resubmission of said submittal will not be required. Accepted subject to its compatibility with future submittals and additional partial submittals for portions of the Work not covered in this submittal does not constitute approval or deletion of specified or required items not shown on the submittal.
2. MAKE CORRECTIONS NOTED (NO RESUBMISSIONS REQUIRED) – Same as No. 1 above, except that minor corrections as noted shall be made by Contractor.
3. AMEND AND RESUBMIT – Rejected because of major inconsistencies or errors that shall be resolved or corrected by Contractor prior to subsequent review by Engineer.
4. REJECTED – The submittal is illegible or the submittal is so far out of compliance with the Contract Documents that the Contractor needs to try again, from scratch.
K. Contractor shall make a complete and acceptable submittal at least by second submission. City reserves the right to deduct monies from payments due to Contractor to cover additional costs of review beyond the second submission.
Illegible submittals will be rejected and returned to Contractor for resubmission.
Contractor shall be in breach of the Contract if it, following a submittal which City determines falls within No. 3 above, Contractor’s first resubmittal does not fall within No. 1 or 2 above.
L. Favorable review will not constitute acceptance by City or Engineer of any responsibility for the accuracy, coordination, and completeness of the submittals.
Accuracy, coordination, and completeness of submittals shall be the sole responsibility of Contractor, including responsibility to back-check comments, corrections, and modifications from City or Engineer’s review before fabrication.
Contractor, subcontractors, or suppliers may prepare submittals, but Contractor shall ascertain that submittals meet requirements of Contract Documents, while conforming to structural space and access conditions at point of installation.
Engineer’s review will be only to determine if the items covered by the submittals will, after installation or incorporation in the Work, conform to the information given
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Eaton Park (Behind 3101 Brittan Avenue) Technical Provisions Page | TP-18 November 13, 2024
Revised April 25, 2025
in the Contract Documents and be compatible with the design concept of the completed Project, as indicated by the Contract Documents. Favorable review of submittal, method of Work, or information regarding materials and equipment Contractor proposes to furnish shall not relieve Contractor of responsibility for errors therein and shall not be regarded as assumption of risks or liability by City or Engineer, or any officer or employee thereof, and Contractor shall have no claim under Contract on account of failure or partial failure or inefficiency or insufficiency of any plan or method of Work or material and equipment so accepted. Favorable review shall be considered to mean merely that City and/or Engineer has no objection to Contractor using, upon his own full responsibility, plan or method of Work proposed, or furnishing materials and equipment proposed.
M. City and/or Engineer’s review will not extend the means, methods, techniques, sequences, or procedures of construction or to safety precautions or programs incident thereto. The review and approval of a separate item as such will not indicate approval of the assembly in which the item functions.
N. Submit complete initial submittal for those items where required by individual Specification Sections. Complete submittal shall contain sufficient data to demonstrate that items comply with Specifications, shall meet minimum requirements for submissions cited in Technical Specifications, shall include certifications, where required, and shall include necessary revisions required for equipment other than first named. If Contractor submits incomplete initial submittal, when complete submittal is required, submittal may be returned to Contractor without review.
O. It shall be Contractor’s responsibility to copy, conform, and distribute reviewed submittals in sufficient numbers for Contractor’s files, subcontractors, and vendors.
P. After City and/or Engineer’s review of submittal, revise as noted, and resubmit as required.
Identify changes made since previous submittal.
1. Begin no fabrication or Work that requires submittals until return of submittals not requiring resubmittal.
2. Normally, submittals will be processed and returned to Contractor within ten (10) working days of receipt.
Q. Distribute copies of reviewed submittals to concerned persons. Instruct recipients to promptly report any inability to comply with provisions.
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Eaton Park (Behind 3101 Brittan Avenue) Technical Provisions Page | TP-19 November 13, 2024
Revised April 25, 2025
R. All Shop Drawings and submittals shall be number identified by Contractor, prior to submission to Engineer, in accordance with the following.
1. Contractor shall sequentially number each submittal (i.e., “1”, “2”, “3”, etc.) as the basis for number identification of all Shop Drawings and submittals.
2. Affix the submittal number under which each submittal is made on every copy of each Shop Drawing, Product Data, Sample, Certification, O & M Manual, etc.
3. If the submittal is a resubmittal (including without limitation after an initial submittal is rejected, returned not reviewed, or marked revise as noted and resubmit), add the suffix designation “A” (i.e., a resubmittal of submittal 1 would be numbered 1A). Subsequent resubmittals would be identified by the submittal number and sequential letters (i.e., “B”, “C”, “D”, etc.).
4. All submittals shall include all information requested by each Specification Section. No partial submittals will be accepted unless previously authorized by Engineer. In the event a partial submittal is authorized, each subsequent different submittal (as opposed to resubmittal) is given a new number.
5. Number of Resubmissions:
i. One re-examination of Contractor’s submittals that have been returned for correction or replacement will be included in Engineer’s scope. Any additional re-examination of Contractor’s submittals will be considered additional scope services to be paid by Contractor through City.
Engineer shall be paid hourly at 3.0 times direct payroll expenses and charge consultant’s time at 1.25 times the amount billed Engineer.
1.03 SCHEDULE OF SHOP DRAWINGS AND SAMPLE SUBMITTALS
A. Submit preliminary Schedule of Shop Drawing, Samples, and Product Data Submittals as required, no later than five (5) working days following receipt of Notice to Proceed from City.
B. Schedule of Shop Drawing, Samples, and Product Data Submittals will be used by City and Engineer to schedule their activities relating to review of submittals.
Schedule of submittals shall indicate a spreading out of submittals and early submittals of long lead-time items and of items that require extensive review.
C. Schedule of Shop Drawing, Samples, and Product Data Submittals shall be reviewed by City and shall be revised and resubmitted until accepted by City.
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Revised April 25, 2025
D. Unless otherwise specified, make submittals in groups containing all associated items to assure that information is available for checking each item when it is received. Identify on the submittal which submittals should be reviewed together.
E. The Contractor agrees that Shop Drawing Submittals processed by the City are not Change Orders; that the purpose of Shop Drawing Submittals by the Contractor is to demonstrate to the City that they understand the design concept, that the Contractor demonstrates their understanding by indicating which equipment, procedure, and material they intend to furnish and install and by detailing the proposed fabrication and installation methods. The Contractor further agrees that if deviations, discrepancies, or conflicts between Shop Drawing Submittals and the Contract Documents in the form of Design Drawings and Specifications are discovered either prior to or after Shop Drawing Submittals are processed by the City, the Design Drawings and Specifications shall control and shall be followed.
1.04 DELAY OF SUBMITTALS
A. Delay of submittals by Contractor is considered avoidable delay. Liquidated damages incurred because of late submittals will be assessed to Contractor.
B. The City may periodically inspect the Record Drawings at the site. The proper and current maintenance of the information required on these drawings shall be a condition precedent to approval of requisitions for periodic payment.
1.05 RECORD DRAWINGS
A. General: The Contractor shall keep and maintain, at the job site, one record set of Contract Drawings. On these, it shall mark all Project conditions, locations, configurations, and any other changes or deviations which may vary from the details represented on the original Contract Drawings, including buried or concealed construction and utility features which are revealed during the course of construction.
B. Special attention shall be given to recording the horizontal and vertical location of all buried utilities that differ from the locations indicated, or which were not indicated on the Contract Drawings. Said Record Drawings shall be supplemented by any detailed sketches, as necessary or directed, to indicate fully, the Work as actually constructed.
C. These Master Record Drawings of the Contractor’s representation of “as-built” conditions, including all revisions made necessary by Addenda, Change Orders, and the like shall be maintained up-to-date during the progress of the Work.
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Revised April 25, 2025
D. In the case of those drawings which depict the detail requirement for equipment to be assembled in the factory, the Record Drawings shall be updated by indicating those portions which are superseded by Change Order Drawings or Final Shop Drawings, and by including appropriate reference information describing the Change Orders by number and the Shop Drawings by manufacturer, drawing, and revision numbers.
E. Record Drawings prepared by the Contractor shall be accessible to the Engineer at all times during the construction period and shall be delivered to the Engineer upon completion of the Work.
F. Effect on Progress Payments: Requests for partial payments will not be approved if the Record Drawings are not kept current. All such Record Drawings will be inspected by the City each month, showing all variations between the Work as actually constructed and as originally shown on the Contract Drawings or other Contract Documents, and the City will not process monthly payment requests until such drawings are made current each month.
G. Final Record Drawings: Upon substantial completion of the Work and prior to final acceptance by the City, the Contractor shall complete and deliver one bond copy set and an electronic scanned set in PFD format with legible red-line changes dated and signed by the Contractor to the City for approval. The redline changes shall conform to the construction records of the Contractor. This information will be assumed to be reliable, and the Engineer will not be responsible for the accuracy of such information, nor for any errors or omissions which may appear on the Record Drawings as a result.
PART 2 – MATERIALS
NOT USED
PART 3 – EXECUTION
NOT USED
PART 4 – MEASUREMENT AND PAYMENT
Payment for complying with the provisions of Contractor Submittals, as well as for furnishing all related labor and materials, and incidentals for doing all the Work identified in this section shall be considered, as included in the Contract, lump sum paid for other Contract items, and no additional compensation shall be made.
END OF SECTION
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Eaton Park (Behind 3101 Brittan Avenue) Technical Provisions Page | TP-22 November 13, 2024
Revised April 25, 2025
SECTION 6 – QUALITY CONTROL
PART 1 – GENERAL
1.01 SITE INVESTIGATION AND CONTROL
A. The Contractor shall verify all dimensions in the field and shall check all field conditions continuously during construction. The Contractor shall be solely responsible for any inaccuracies built into the Work.
B. The Contractor shall inspect related and appurtenant Work and shall report in writing to the Engineer, any conditions which will prevent proper completion of the Work. Any required removal, repair, or replacement caused by the Contractor shall be done by the Contractor’s Work at its sole cost and expense.
1.02 INSPECTION OF THE WORK
A. General: The Work shall be conducted under the general observation of the Engineer and shall be subject to inspection by representatives of the City to verify strict compliance with the requirements of the Contract Documents.
B. The authorized representative of the Engineer on the Project site shall be the Project Engineer acting directly and through various inspectors at the site. The presence of the Inspectors, however, shall not relieve the Contractor of the responsibility for the proper execution of the Work in accordance with all requirements of the Contract Documents. Compliance is distinctly a duty of the Contractor, and said duty shall not be avoided by any act or omission on the part of the Inspector(s).
C. All materials and articles furnished by the Contractor shall be subject to rigid inspection, and no material or articles shall be used in the Work until it has been inspected and accepted by the Engineer or the City.
D. Inspection at Place of Manufacture: Unless otherwise specified, all products, materials, and equipment shall be subject to inspection by the Engineer at the place of manufacture if deemed necessary by the Engineer.
E. The presence of the Engineer at the place of manufacture; however, shall not relieve the Contractor of the responsibility for furnishing products, materials, procedures, and equipment which comply with all requirements of the Contract Documents.
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Eaton Park (Behind 3101 Brittan Avenue) Technical Provisions Page | TP-23 November 13, 2024
Revised April 25, 2025
1.03 SAMPLING AND TESTING
A. Unless otherwise specified, all sampling and testing shall be in accordance with the methods prescribed in the current standards of the ASTM or other specified published standards, as applicable to the class and nature of the article or materials considered; however, the City reserves the right to use any generally accepted system of sampling and testing, which, in the opinion of the Engineer, will indicate to the City that the quality of the workmanship is in full accord with the Contract Documents.
B. Any waiver by the City of any specific testing or other quality assurance measures, whether or not such waiver is accompanied by a guarantee of substantial performance as a relief from the specified testing or other quality assurance requirements as originally specified, and whether or not such guarantee is accompanied by a "performance bond" to assure execution of any necessary corrective or remedial Work, shall not be construed as a waiver of any prescriptive or performance requirements of the Contract Documents. "Performance Bond" as used herein, is a separate bond in addition to the Contract Performance Bond required in the General Conditions.
C. Notwithstanding the existence of such waiver, and in addition to any testing and inspection performed by any other Inspector on behalf of the City or any other public agency having jurisdiction, the Engineer shall have the right to make independent investigations and tests, and failure of any portion of the Work to meet any of the requirements of the Contract Documents, shall be reasonable cause for the Engineer to require the removal or correction and reconstruction of any such Work in accordance with the General Conditions.
1.04 TESTING AND INSPECTION SERVICES
A. An independent testing agency or laboratory acceptable to the City shall perform specified testing. Specified testing shall include, at the minimum, field moisture and density testing of fill, laboratory compaction curves, and other testing as required by the City and/or Geotechnical Engineer. Refer to Technical Provisions Section 10 Part 3.01D for more information on specified testing methods.
B. The independent firm will perform tests, inspections, and other services specified in individual specification sections and as required by the Engineer.
1. Laboratory: Authorized to operate in the State of California.
2. Laboratory Staff: Maintain full time specialist on staff to review services.
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Revised April 25, 2025
3. Testing Equipment: Calibrated at reasonable intervals with devices of accuracy traceable to National Bureau of Standards or accepted values of natural physical constants.
C. Testing, inspections, and source quality control may occur on or off the Project site. Perform off-site testing as required by the Engineer or City.
D. Reports will be submitted by an independent firm to the Engineer and Contractor, indicating observations and results of tests and indicating compliance or non-compliance with Contract Documents.
E. Cooperate with independent firm; furnish samples of materials, design mix, equipment, tools, storage, safe access, and assistance by incidental labor, as requested.
1. Notify Engineer and independent firm 24 hours prior to expected time for operations requiring services.
2. Make arrangements with independent firm and pay for additional samples and tests required for Contractor's use.
F. Testing and employment of testing agency or laboratory shall not relieve Contractor of obligation to perform Work in accordance with requirements of Contract Documents.
G. Retesting or reinspection required because of non-conformance to specified requirements shall be performed by same independent firm on instructions by the Engineer. Payment for retesting or reinspection is the sole responsibility of the Contractor.
H. Agency Responsibilities:
1. Test samples of mixes submitted by Contractor.
2. Provide qualified personnel at site. Cooperate with Engineer and Contractor in performance of services.
3. Perform specified sampling and testing of products in accordance with Specified Standards.
4. Ascertain compliance of materials and mixes with requirements of Contract Documents.
5. Promptly notify the Engineer and Contractor of observed irregularities or non-conformance of Work or products.
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Revised April 25, 2025
6. Perform additional tests required by the City or Engineer.
7. Attend pre-construction meetings and progress meetings on request.
I. Agency Reports: After each test, promptly submit one copy of the report to the Engineer and to the Contractor. When requested by the Engineer, provide interpretation of test results. Include the following.
1. Date issued
2. Project title and number
3. Name of inspector
4. Date and time of sampling or inspection
5. Identification of product and specifications section
6. Location in Project
7. Type of inspection or test
8. Date of test
9. Results of tests
10. Conformance with Contract Documents
J. Limits On Testing Authority:
1. Agency or laboratory may not release, revoke, alter, or enlarge on requirements of Contract Documents.
2. Agency or laboratory may not approve or accept any portion of the Work.
3. Agency or laboratory may not assume duties of Contractor.
4. Agency or laboratory has no authority to stop the Work.
1.05 TESTING
A. Best Management Practices Construction Handbook, California Stormwater Quality Association, latest version: All materials, equipment, and Work included in this Contract shall be tested and inspected to prove compliance with the Contract requirements. Unless otherwise specified, all costs of testing, including temporary facilities and connections, shall be borne by the Contractor. No tests specified herein shall be applied until the item to be tested has been inspected and approval given for the application of such test.
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Revised April 25, 2025
Tests and inspections shall include:
1. Factory tests.
2. The delivery acceptance test and inspections.
3. The installed tests and inspections of items as installed.
4. Tests and inspections, unless otherwise specified or accepted, shall be in accordance with the recognized standards of the industry.
The form of evidence of satisfactory fulfillment of delivery acceptance test and of installed test and inspection requirements shall be, at the discretion of the City, either by tests and inspections carried out in the City’s presence or by certificates or reports of tests and inspections carried out by approved persons or organizations. The Contractor shall provide and use forms which include all test information, including specified operational parameters, and shall be acceptable in content to the City.
B. Factory Observations and Tests: At the request of the City, the Contractor shall arrange with the factory for the City or his/her representatives to observe the manufacturing process and to witness performance tests at the factory or point of manufacture of any and all items to be furnished as a part of this Contract. The Contractor shall inform the City in sufficient time to allow arrangements to be made for witness of manufacture and tests. Where the City elects not to observe the manufacture or witness such tests, the Contractor shall provide the City with certifications that the materials and equipment meet the requirements of the specifications.
C. Delivery Acceptance Tests and Inspections. The delivery acceptance tests and inspections shall be at the Contractor’s expense for any materials or equipment specified herein and shall include the following.
1. Test of items at the place of manufacture during and/or on completion of manufacture, comprising material tests, hydraulic pressure tests, electrical and instrumentation subsystem tests, electric and operating tests, and inspections in accordance with the relevant standards of the industry, and more particularly, as detailed in individual clauses of these specifications to satisfy the City that the items tested and inspected comply with the requirements of this Contract.
2. Inspection of all items delivered at the site or to any authorized place of storage in order that the City may be satisfied that such items are of the specified quality and are in good order and condition at the tie of delivery. To that end, the Contractor shall be prepared to remove all coverings, containers, or crates to permit the City to conduct the inspection. Should the City find, in his/her opinion, indication of damage or deficient quality, the Contractor shall provide the necessary documentation or conduct tests deemed necessary by the City to demonstrate compliance.
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Eaton Park (Behind 3101 Brittan Avenue) Technical Provisions Page | TP-27 November 13, 2024
Revised April 25, 2025
D. Tests and Inspection: All materials and equipment shall be tested by the Contractor to the satisfaction of the City before any facility is put into operation. Tests shall be as specified in these specifications and shall be made to determine whether the materials and equipment have been properly assembled, aligned, adjusted, and connected.
Any changes, adjustments, or replacements required to make the equipment operate as specified shall be carried out by the Contractor as part of the Work.
E. All gauges, meters, recorders, and monitors shall be provided by the Contractor, as required by the City, to supplement or augment the instrumentation system provided under this Contract to properly demonstrate that all materials and equipment fully satisfy the requirements of these specifications. All devices employed for the purpose of measuring the performance of the facility’s equipment and systems shall be specifically selected to provide a level of uncertainty consistent with the variables to be monitored. All instruments shall be recently calibrated, and the Contractor shall be prepared at all times to demonstrate, through recalibration, the uncertainty of all instruments employed for testing purposes. Calibration procedures shall be in accordance with applicable standards of ASTM, ISA, and IEEE. The adequacy of all gauges, meters, recorders and monitors shall be subject to review of the City.
1.06 MANUFACTURERS’ FIELD SERVICES
A. When specified in individual specification sections, require material or product suppliers or manufacturers to provide qualified staff personnel to observe site conditions, conditions of surfaces and installation, quality of workmanship, start-up of equipment, and test, adjust, and balance of equipment as applicable, and to initiate instructions when necessary.
B. Submit qualifications of observer to the Engineer thirty (30) days in advance of required observations. Observer subject to approval of Engineer.
C. Report observations and site decisions or instructions given to applicators or installers that are supplemental or contrary to manufacturers' written instructions.
1.07 DEFECTIVE MATERIAL TO BE REMOVED
A. All materials not conforming to the requirements of these Specifications shall be considered as defective; and all such materials, whether in place or not, shall be rejected and shall be removed immediately from the site of the Work.
PART 2 – MATERIALS
NOT USED
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City of San Carlos Landslide Repair
Eaton Park (Behind 3101 Brittan Avenue) Technical Provisions Page | TP-28 November 13, 2024
Revised April 25, 2025
PART 3 – EXECUTION
NOT USED
PART 4 – MEASUREMENT AND PAYMENT
Payment for complying with the provisions for Quality Control, as well as for furnishing all related labor, materials, tools, equipment, and incidentals for doing all the Work identified in this section shall be considered, as included in the Contract, lump sum paid for other Contract items, and no additional compensation shall be made.
END OF SECTION
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May 12, 2025 Packet Pg. 539
City of San Carlos Landslide Repair
Eaton Park (Behind 3101 Brittan Avenue) Technical Provisions Page | TP-29 November 13, 2024
Revised April 25, 2025
SECTION 7 – WATER POLLUTION CONTROL
PART 1 – GENERAL
1.01 WORK INCLUDED
A. Prohibit illicit discharge (non-rainwater) into the storm drain system.
B. Construct, inspect, and maintain any and all necessary systems to eliminate contaminants from entering the stormwater system.
C. Cleanup and control of worksite materials, spoils, and debris.
D. Removal of contaminants produced by the Project.
E. The Contractor will prepare the Water Pollution Control Plan (WPCP) in accordance with the latest version of the California Department of Transportation “Water Pollution Control Programs (WPCP) Preparation Manual.” F. After job completion, removal of systems installed by the Contractor to control contaminants from entering the stormwater system.
G. The Work shall include the provision of all labor, materials, equipment, and apparatus not specifically mentioned herein or noted on the plans, but which are incidental and necessary to complete the Work specified.
1.02 REFERENCES, CODES, AND STANDARDS
A. Best Management Practices Construction Handbook, California Stormwater Quality Association, latest version.
B. National Pollutant Discharge Elimination System (NPDES) General Permit for Storm Water Discharges Associated with Construction and Land Disturbance Activities (Order No. 2009-0009-DWQ, NPDES No. CAS000002) ("General Permit"), and the NPDES Municipal Regional Stormwater Permit (MRP) (Order No.
R2-2022-0018a, NPDES No. CAS612008).
C. San Mateo Countywide Water Pollution Prevention Program (SMCWPPP).
D. California Department of Transportation “Water Pollution Control Programs (WPCP) Preparation Manual.”
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May 12, 2025 Packet Pg. 540
City of San Carlos Landslide Repair
Eaton Park (Behind 3101 Brittan Avenue) Technical Provisions Page | TP-30 November 13, 2024
Revised April 25, 2025
1.03 QUALITY ASSURANCE
A. All Work performed under this Contract and all Contractors and their associates and/or employees are required to comply with all applicable stormwater regulations and to implement Best Management Practices (BMPs) at all times.
B. All employees and subcontractors shall be trained on the stormwater pollution prevention requirements contained in these specifications. A supply of spill clean-up materials, such as rags or absorbents, shall be kept readily accessible on site.
PART 2 – PRODUCTS
2.01 INLET PROTECTION
A. Gravel bag material for use in storm drain inlet protection and check dams shall be polypropylene, polyethylene, or polyamide fabric, minimum unit weight of 4 oz/yd2, Mullen burst strength exceeding 300 lb/in2in conformance with the requirements in ASTM designation D3786, and ultraviolet stability exceeding 70 percent in conformance with the requirements in ASTM designation D4355.
B. Gravel bag size for use in storm drain inlet protection and check dams shall have a length of 18 inches, width of 12 inches, thickness of 3 inches, and mass of approximately 33 pounds. Bag dimensions are nominal and may vary based on locally available material.
PART 3 – EXECUTION
3.01 RECYCLING
A. At the end of each working day, all scrap, debris, and waste material shall be collected, and materials disposed of properly.
B. Dry, empty paint cans/buckets, old brushes, rollers, rags, and drop cloths shall be disposed of in approved waste collection.
C. Dumpsters shall be inspected for leaks. As leaks are detected, the trash hauling Contractor shall be contacted to replace or repair dumpsters that leak.
D. Water from cleaning dumpsters shall not be discharged on site.
E. Regular waste collection shall be arranged for before dumpsters overflow.
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May 12, 2025 Packet Pg. 541
City of San Carlos Landslide Repair
Eaton Park (Behind 3101 Brittan Avenue) Technical Provisions Page | TP-31 November 13, 2024
Revised April 25, 2025
3.02 HAZARDOUS MATERIAL/WASTE MANAGEMENT/MATERIALS
MANAGEMENT
A. Designated areas of the Project site shall be proposed by the Contractor for approval by the Engineer suitable for material delivery, storage, and waste collection as far from catch basins, gutters, drainage courses, and creeks as possible.
B. All hazardous materials, such as pesticides, paints, thinners, solvents, and fuels; and all hazardous wastes, such as waste oil and antifreeze, shall be labeled and stored in accordance with state and federal regulations.
C. All hazardous materials and all hazardous wastes shall be stored in accordance with secondary containment regulations, and it is recommended that these materials and wastes be covered, as needed, to avoid potential management of collected rainwater as hazardous waste.
D. The Contractor shall dispose of all excess thinners, solvents, chemicals, oil-based and water-based paint as hazardous waste.
E. Regular hazardous waste collection shall be arranged to comply with time limits on the storage of hazardous waste.
F. Granular materials shall be stored a minimum of 10 feet from the closest catch basin and curb return. The Contractor shall not allow these granular materials to enter the storm drain or creek.
G. Warning signs shall be posted in areas containing or treated with chemicals.
H. An accurate up-to-date inventory, including Material Safety Data Sheets (MSDS) of hazardous wastes stored on site shall be kept and available to assist emergency response personnel in the event of a hazardous materials incident.
I. Maintenance and fueling of vehicles and equipment shall be performed in a designated, bermed area, or over a drip pan that will not allow runoff of spills.
Vehicles and equipment shall be regularly checked and have leaks repaired promptly. Secondary containment shall be used to catch leaks or spills any time that vehicle or equipment fluids are dispensed, changed, or poured.
3.03 CHEMICAL USAGE
A. When rain is forecast within 24 hours or during wet weather, the Engineer may prevent the Contractor from applying chemicals in outside areas.
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City of San Carlos Landslide Repair
Eaton Park (Behind 3101 Brittan Avenue) Technical Provisions Page | TP-32 November 13, 2024
Revised April 25, 2025
B. Pesticides or fertilizers shall not be over applied and material manufacturer’s instructions shall be followed regarding uses, protective equipment, ventilation, flammability, and mixing of chemicals. Over application of a pesticide constitutes a “label violation” subject to an enforcement action by the San Mateo County Agriculture Commissioner.
3.04 DUST CONTROL
A. Where possible, reclaimed water shall be used to control dust on a daily basis, as directed by the Engineer.
B. At the end of each working day, or as directed by the Engineer, the roadways and on-site paved areas shall be cleaned and swept of all materials attributed to or involved in the Work. Streets shall not be washed down into a storm drain or creek in lieu of street sweeping. Water wash may be picked up by a vacuum unit in lieu of sweeping.
3.05 SAWCUTTING
A. The Contractor shall cover or barricade catch basins using control measures, such as filter fabric, straw bales, sandbags, and fine earthen dams to keep slurry out of the storm drain system. The Contractor shall ensure that the entire opening is sealed.
B. Sawcutting debris and spoils be removed by shovel, absorption, vacuum, or pick up of waste prior to moving to the next location or at the end of each working day, whichever is sooner.
C. If slurry enters a catch basin, the slurry shall be removed from the storm drain immediately.
3.06 DEWATERING OPERATIONS
A. Water shall be routed through a control measure, as determined and approved by the Engineer, such as a sediment trap, sediment basin, or Baker tank, to remove settleable solids prior to discharge to the storm drain system. Filtration of the water following the control measure may be required on a case-by-case basis.
B. The filtered water shall be reused for other purposes, such as dust control or irrigation, to the extent possible.
C. If the Project is within an area of known groundwater contamination, the water from dewatering operations shall be tested prior to discharge. If the water meets the Regional Water Quality Control Board standards, it may be discharged into the storm drain.
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May 12, 2025 Packet Pg. 543
City of San Carlos Landslide Repair
Eaton Park (Behind 3101 Brittan Avenue) Technical Provisions Page | TP-33 November 13, 2024
Revised April 25, 2025
3.07 CONCRETE GROUT AND MORTAR WASTE MANAGEMENT
A. Concrete, grout, and mortar shall be stored away from the drainage areas and ensure that these materials do not enter the storm drain system.
B. Concrete trucks shall not be washed out into streets, gutters, storm drains, drainage channels, or creeks.
C. Concrete trucks and equipment shall be washed out off site or in a designated area on site where the water will flow onto dirt or into a temporary pit or bermed area.
The water shall percolate into the soil and the hardened concrete placed in a waste container for disposal. If a suitable soil or bermed area is not available on site, the wash water shall be collected and removed off site and disposed of properly.
D. Water created by the washing of exposed aggregate concrete finish shall be collected in a suitable dirt area or filtered through straw bales or equivalent material before entering the storm drain system. Sweepings from exposed aggregate finish shall be collected and disposed of in a waste container or removed off site and disposed of properly.
3.08 SITE CLEANUP
A. The cleaning of equipment or materials shall not be performed on site or in the street using soaps, solvents, degreasers, steam cleaning, or equivalent methods.
B. All cleanup must be performed in a designated area that will not allow the cleaning rinse to flow off site or into streets, gutters, storm drains, or creeks.
PART 4 – MEASUREMENT AND PAYMENT
The Contract lump-sum price paid for Water Pollution Control shall include full compensation for furnishing all labor, material, equipment, tools, and incidentals necessary to prepare and implement a water pollution control plan, identified in this section, as shown on the Plans, as specified in the Specifications, and the Special Provisions, and as directed by the Engineer, and no additional compensation will be allowed therefor.
END OF SECTION
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May 12, 2025 Packet Pg. 544
City of San Carlos Landslide Repair
Eaton Park (Behind 3101 Brittan Avenue) Technical Provisions Page | TP-34 November 13, 2024
Revised April 25, 2025
SECTION 8 – CLEARING AND GRUBBING
PART 1 – GENERAL
1.01 WORK INCLUDED
The scope of Work shall include removing and disposing of all vegetation and debris (including earthen materials incidentally removed with vegetation and debris) and removing structures and obstructions located within the limits shown on the drawings or designated by the Engineer, except such objects as are designated to remain in place or are to be removed in accordance with other sections of these specifications. The Work shall also include the preservation from injury or defacement of all vegetation and objects designated to remain.
1.02 REFERENCES, CODES, AND STANDARDS
Clearing and grubbing shall conform to Section 17-2 of the 2022 Caltrans Standard Specifications.
PART 2 – MATERIALS
NOT USED
PART 3 – EXECUTION
3.01 GENERAL
A. The Engineer will establish the limits of the Work and will designate all trees, plants, shrubs, and other items to remain. The Contractor shall protect and preserve all items designated to remain.
B. Miscellaneous trimming of trees or shrubs designated to remain shall be conducted when directed by the Engineer. Trimming shall be in accordance with good tree surgery practice.
C. All vegetation and debris to be removed shall be disposed of by the Contractor within areas indicated on the drawings or areas approved by the Engineer. When burning is permitted, it shall be under the constant care of competent employees.
Burning shall be performed in a manner such that anything designated to remain on the right-of-way, the surrounding forest cover, or other adjacent property will not be jeopardized. Burning shall be done in accordance with all applicable laws and ordinances. The Contractor shall obtain all required permits.
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May 12, 2025 Packet Pg. 545
City of San Carlos Landslide Repair
Eaton Park (Behind 3101 Brittan Avenue) Technical Provisions Page | TP-35 November 13, 2024
Revised April 25, 2025
D. The Contractor is responsible for (1) securing waste disposal sites, (2) obtaining written permission of the owner of the disposal site, and (3) securing any required permits, if none is indicated on the drawings. The cost of securing such sites shall be borne by the Contractor. If requested by the Engineer, the Contractor shall furnish the permit numbers of all required permits for disposal sites.
E. Merchantable timber within the clearing limits will become the property of the Contractor, unless otherwise specified.
3.02 GRUBBING
A. All trees, stumps, roots, and other objects not designated to remain shall be cleared and grubbed. If the area is not to be benched, the removal of undisturbed stumps and roots and non-perishable solid objects that will be a minimum of 4 feet below the embankment surface and that do not extend more than 6 inches above the original ground line, will not be required.
B. In areas outside of the grading limits of cut and embankment areas and to the established limits of the Work, all stumps and non-perishable solid objects permitted to remain in place shall be cut off not more than 6 inches above the ground line or low water level.
C. Except in areas to be excavated, stump holes and other holes from which obstructions are removed shall be backfilled with suitable materials and compacted in accordance with the Contract Documents.
3.03 HAND CLEARING
A. In areas where hand clearing is indicated on the drawings or designated by the Engineer, no equipment on wheels or tacks shall be used. Care shall be taken to ensure that the grass, moss cover, or the natural ground is not disturbed. Stumps shall be cut flush with the ground, except that in areas within four feet or more of embankment cover, stumps may be cut off six inches above the natural ground.
PART 4 – MEASUREMENT AND PAYMENT
The Contract lump sum price paid for Clearing and Grubbing shall include full compensation for furnishing all labor, material, equipment, tools, and incidentals necessary to remove and dispose of all vegetation and debris identified in this section, as shown on the Plans, as specified in the Specifications, and the Special Provisions, and as directed by the Engineer, and no additional compensation will be allowed therefor.
END OF SECTION
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May 12, 2025 Packet Pg. 546
City of San Carlos Landslide Repair
Eaton Park (Behind 3101 Brittan Avenue) Technical Provisions Page | TP-36 November 13, 2024
Revised April 25, 2025
SECTION 9 – HAND GROOMING-BACKFILLING RILLS, TAPERING SCARP,
ENGINEERED FILL PLACEMENT
PART 1 – GENERAL
1.01 SECTION INCLUDES
This Work shall consist of all labor, operations, and materials necessary for earthwork, including but not limited to, site preparation, demolition, excavation, grading, backfilling of excavations and trenches, engineered fill placement, moisture conditioning, compaction, and disposal of excess material.
1.02 RELATED SECTIONS
Excavation shall conform to Section 19 of the 2022 Caltrans Standard Specifications.
1.03 REFERENCES
A. The following is a list of standards that may be referenced in this section.
1. Earthwork operations must comply with Section 19 of the 2022 Caltrans Standard Specifications.
2. ASTM D1557 – Laboratory Compaction Characteristics of Soil Using Modified Effort (56,000 ft-lbs/cu. ft. (2,700 kN-m/cu. m.)).
3. ASTM D2487 – Classification of Soils for Engineering Purposes (Unified Soil Classification System).
4. ASTM D6938 – Standard Test Method for In-Place Density and Water Content of Soil and Soil Aggregate by Nuclear Methods (Shallow Depth).
5. Occupational Safety and Health Administration (OSHA) Standard 29 CFR 1926 Section 650.
6. ENGEO. 2024. 3101 Brittan Avenue, Geotechnical Recommendations for Landslide Repair; November 12, 2024; Project No. 13387.000.033
1.04 DEFINITION
A. Backfill
Materials used in refilling a cut, trench, or other excavation.
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City of San Carlos Landslide Repair
Eaton Park (Behind 3101 Brittan Avenue) Technical Provisions Page | TP-37 November 13, 2024
Revised April 25, 2025
B. Compaction
The process of mechanically stabilizing a material by increasing its density at a controlled moisture condition. “Degree of Compaction” is expressed as a percentage of the maximum density obtained by the test procedure described in ASTM D1557 for general soil types, abbreviated in this specification as “90 percent compaction.”
C. Satisfactory Materials
On-site soil is satisfactory, provided it is processed to remove concentrations of organic material, debris, and particles greater than 6 inches in maximum dimension. Import fill materials should meet on-site soil requirements and have a plasticity index less than 25.
D. Unsatisfactory or Unsuitable Materials
Materials that do not comply with the requirements for satisfactory materials are unsatisfactory. Unsatisfactory materials also include man-made fill; unstable materials; trash; refuse; backfill from previous construction; and material classified as satisfactory which contains root and other organic matter or frozen material.
The owner shall be notified of any contaminated materials.
E. Quality Assurance
1. All Work performed shall conform to local codes and regulations, including standards set forth in the Standard Specification of the State of California, Department of Transportation (Caltrans).
2. Upon discovery of unforeseen subsurface site conditions, the Contractor shall notify the inspector immediately.
3. Upon discovery of hazardous materials or staining or odor from soil, cease all activities and immediately contact the Engineer.
PART 2 – MATERIAL
2.01 MATERIALS
The Contractor shall furnish fill materials in accordance with the requirements specified herein and the standard drawings.
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May 12, 2025 Packet Pg. 548
City of San Carlos Landslide Repair
Eaton Park (Behind 3101 Brittan Avenue) Technical Provisions Page | TP-38 November 13, 2024
Revised April 25, 2025
2.01.1 Engineered Fill and Backfill
A. Engineered fill and backfill material may consist of approved material acquired from excavations or material hauled from outside the Project limits. On-site soil is satisfactory, provided it is processed to remove concentrations of organic material, debris, and particles greater than 6 inches in maximum dimension. Import fill materials should meet on-site soil requirements and have a plasticity index less than 25.
B. The Engineer will determine which type of aggregate or other material which shall be used after observing the specific site conditions.
C. Suitable material identified on site shall be used first for embankments and backfill.
PART 3 – EXECUTION
3.01 GENERAL EXCAVATION
A. General
1. Excavation operations shall be conducted so that material outside of the limits of Work will not be disturbed.
2. Prior to beginning grading operations in any area, all necessary clearing and grubbing in that area shall have been performed in accordance with Section “Clearing and Grubbing,” of these specifications.
3. Minor grooming (i.e., backfilling rills, tapering the scarp back) should be performed with hand tools and excavation of loose landslide debris within the swale area upslope of Eaton Trail. The estimated volume of materials is 176 to 235 cubic yards. The material shall be removed, spread evenly, and placed as engineered fill along the existing Eaton Trail.
4. Accumulated soil, debris, and vegetation shall be removed to original ground surface from behind the existing catchment wall. The estimated volume of material is 12 to 15 cubic yards. The material shall be removed, spread evenly, and placed as engineered fill along the existing Eaton Trail.
5. The Contractor shall notify the Engineer in sufficient time before beginning excavation such that the necessary topography and/or cross sections may be taken. The Contractor shall not excavate beyond the dimensions and elevations established, and material shall not be removed prior to surveying the site.
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May 12, 2025 Packet Pg. 549
City of San Carlos Landslide Repair
Eaton Park (Behind 3101 Brittan Avenue) Technical Provisions Page | TP-39 November 13, 2024
Revised April 25, 2025
B. Excavation
1. Excavation shall be performed to fulfill the requirements indicated. Excavation shall include removal and disposal of all materials encountered. During excavation, material satisfactory for backfilling shall be stockpiled in an orderly manner at a distance from the banks of the trench equal to ½ the depth of the excavation, but in no instance closer than 2 feet. Excavated material not required or not satisfactory for backfill shall be disposed of off-site. Surface water shall be prevented from flowing into the excavation, and any water accumulating shall be removed to maintain the stability of the bottom and sides of the excavation. Unauthorized overexcavation shall be at the Contractor’s expense.
2. All excess material excavated from the Project site shall be removed from the Project site and become the property of Contractor.
3. Good surface drainage shall be provided around all permanent cuts to direct surface runoff away from the cut face.
C. Stockpiles
1. Stockpiles of excavated material to be removed from the Project site shall be kept in a neat and well-drained condition, giving due consideration to drainage at all times. The ground surface at stockpile locations shall be cleared, grubbed, and sealed by rubber-tired equipment.
D. Compaction
1. Compaction: Backfill material shall only consist of satisfactory material. Subgrade surface on which backfill is to be placed shall be compacted to 90 percent relative compaction. The subgrade shall be firm, unyielding, and free of loose material.
Compaction by water flooding or jetting will not be permitted. i. Field Density Tests: Tests shall be performed in sufficient numbers to ensure that the specified density is being obtained. A minimum of one field density test per lift of backfill shall be performed. One moisture density relationship shall be determined for every 100 cubic yards of material used. Field in-place density shall be determined in accordance with ASTM D6938. When ASTM D6938 is used, the calibration curves shall be checked and adjusted, as described in paragraph calibration of the ASTM publication. Excavations improperly compacted shall be reopened to the depth directed, then refilled and compacted to the density specified at no additional cost to the owner.
2. Replacement of Unstable Material: Unstable material, as determined by the Geotechnical Engineer, removed from the bottom of the trench or excavation shall be replaced with satisfactory material placed and compacted in layers not exceeding 8 inches loose thickness.
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May 12, 2025 Packet Pg. 550
City of San Carlos Landslide Repair
Eaton Park (Behind 3101 Brittan Avenue) Technical Provisions Page | TP-40 November 13, 2024
Revised April 25, 2025
3. Initial backfill material shall be placed in layers not exceeding 6 inches loose thickness and compacted with tampers to a height of at least 1 foot above the utility pipe. The backfill shall be brought up evenly on both sides of the pipe for the full length of the pipe. Care shall be taken to ensure thorough compaction of the fill under the haunches of the pipe.
E. Finish Grades
1. General: All areas covered by the Project, including excavated and riprapfilled sections and adjacent transition areas, shall be relatively level. The finished surface shall be reasonably free from abrupt surface changes.
2. Finished Elevations: Low areas resulting from removal of unsuitable material or from excavation of rock shall be brought up to required grade with satisfactory materials, and the entire area shall be shaped to line, grade, and cross section, and shall be compacted as specified.
PART 4 – MEASUREMENT AND PAYMENT
The Contract unit price paid for Earthwork shall be measured and paid per cubic yard. The price paid shall include full compensation for performing the scope of Work specified in this section, furnishing all labor, materials, tools, equipment, and incidentals for doing all Work as shown on the Plans, as specified in the Specifications, and the Special Provisions, and as directed by the Engineer, and no additional compensation will be allowed therefor.
END OF SECTION
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May 12, 2025 Packet Pg. 551
City of San Carlos Landslide Repair
Eaton Park (Behind 3101 Brittan Avenue) Technical Provisions Page | TP-41 November 13, 2024
Revised April 25, 2025
SECTION 10 – DEBRIS CATCHMENT FENCE
PART 1 – GENERAL
1.01 SUMMARY
A. The WORK under this section shall include all labor, materials, tools, and equipment necessary for furnishing and installing debris catchment fence system as shown on the plans and as directed by the engineer.
1.02 REFERENCES
A. T35 Roadside Rockfall Barrier Standard Drawing, Geobrugg PART 2 – MATERIALS
2.01 DEBRIS CATCHMENT FENCE
The debris catchment system will include Geobrugg Tecco G65/3 fence, wire rope, wire rope anchors, wire rope grips and post.
PART 3 – EXECUTION
3.01 Markout post locations and lateral anchors. The distance between the lateral anchors and the end post varies depending on the barrier height (Table 7.1). Make sure that the lateral anchors are in line or slightly in front (downslope) of the barrier.
3.02 Drill a 200 mm hole (as a minimum) for the posts. The hole diameter may increase if more concrete coverage is required. The depth will depend on the ground conditions (Table 7.1).
3.03 Drill the holes for the lateral anchors. The drill depth and diameter will also depend on the ground conditions (Table 7.1).
3.04 Install posts and lateral anchors into holes. Make sure the posts are installed with the holes for the shackles facing downslope. Concrete and grout (minimum 32 MPa) in place, making sure the posts are ‘plumb’ and the concrete has been compacted.
3.05 Install the 5/8 inch shackles on the top and bottom of each post.
3.06 Once the concrete and grout have cured, install the 14 mm top and bottom rope.
This is done by threading the rope through the 5/8 inch shackles on the top and bottom of each post.
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May 12, 2025 Packet Pg. 552
City of San Carlos Landslide Repair
Eaton Park (Behind 3101 Brittan Avenue) Technical Provisions Page | TP-42 November 13, 2024
Revised April 25, 2025
3.07 Attach the top and bottom rope to the lateral (wire rope anchors). One end is attached using wire rope grips. Make sure you pay attention to the orientation of the wire rope grips and their spacing. Tension both ropes to approximately 10 kN.
3.08 Starting at one end, hang a panel of the Teccho mesh over the top support rope.
Fold it back on itself, making sure it hangs down below the top rope by one diamond. Fix it back onto itself using one T3 clip per diamond.
3.09 Repeat the process above; however, this time for the bottom support rope. Fix the mesh back onto itself using one T3 clip per diamond, making sure the mesh is tight.
3.10 Move along to the next section of the barrier, and repeat the process above.
Overlap the adjacent Tecco mesh panel by a minimum of one diamond, and connect the two panels together using one T3 clip per diamond.
3.11 Repeat the process above until all the Tecco mesh has been hung. Depending on the overall length of the barrier, you may end up with more overlap on the last two mesh panels.
3.12 Install the vertical ropes at the end posts of the barrier. Thread the rope through the top shackle, then thread it through the mesh (every diamond), and finally through the bottom shackle. Thread the rope through the thimble, and connect using wire rope grips. Make sure you pay attention to the orientation of the wire rope grips and their spacing.
Table 7.1 Height, Post Embedment, and Lateral Anchor Specification
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May 12, 2025 Packet Pg. 553
City of San Carlos Landslide Repair
Eaton Park (Behind 3101 Brittan Avenue) Technical Provisions Page | TP-43 November 13, 2024
Revised April 25, 2025
PART 4 – MEASUREMENT AND PAYMENT
The contract unit price paid for the Debris Catchment Fence System shall be measured and paid per linear foot. The price paid shall include full compensation for furnishing all labor, materials, tools, equipment, and incidentals and for doing all work to install the debris catchment fence system, as identified in this section, as indicated in the contract documents and as directed by the engineer; and no additional compensation shall be made.
END OF SECTION
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May 12, 2025 Packet Pg. 554
City of San Carlos Landslide Repair
Eaton Park (Behind 3101 Brittan Avenue) Technical Provisions Page | TP-44 November 13, 2024
Revised April 25, 2025
SECTION 11 – EROSION CONTROL
PART 1 – GENERAL
1.01 SUMMARY
A. Erosion control shall conform to Section 21 of the 2022 Caltrans Standard Specifications.
B. This Work shall consist of applying permanent measures to the soil surface needed to control erosion. These measures shall include, but not be limited to, erosion control blanket, fiber roll, and hydroseed for erosion protection within the swale area. The specific erosion control material and supplier shall be preapproved by the Engineer.
C. These measures shall be installed at the locations where needed to control erosion after the construction of the Project, as noted on the plans and as directed by Engineer.
1.02 REFERENCE STANDARDS
A. Erosion control Work shall conform to Section 21-2 of the 2022 Caltrans Standard specifications.
B. Erosion control mat/blanket shall conform to Section 21-2.02O of the 2022 Caltrans standard specifications.
PART 2 – MATERIALS
A. All materials shall be submitted for approval before installation.
B. Materials may include hay bales, straw, fiber mats, fiber netting, wood cellulose, fiber fabric, gravel, and other suitable materials, and shall be reasonably clean, free of deleterious materials, and certified weed free.
PART 3 – EXECUTION
2.01 SITE PREPARATION
A. Before placing erosion control mat/blanket and fiber rolls, the Contractor shall certify that the subgrade has been properly compacted, graded smooth, has no depression, voids, soft, or uncompacted areas, is free from obstructions such as tree roots, or other foreign matter, and is seeded and fertilized. The Contractor shall not proceed until all unsatisfactory conditions have been remedied.
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City of San Carlos Landslide Repair
Eaton Park (Behind 3101 Brittan Avenue) Technical Provisions Page | TP-45 November 13, 2024
Revised April 25, 2025
B. The Contractor shall fine grade the subgrade by hand dressing, where necessary, to remove local deviations.
2.02 SEEDING
Apply native seed to soil surface before installing blanket. Disturbed areas shall be reseeded.
2.03 INSTALLATION ON SOIL SLOPES
A. Erosion control mat/blanket shall be installed in accordance with manufacturer’s Installation Guidance, Staple Pattern Guides, and CAD details. The extent of erosion control mat/blanket shall be as shown on the Project Drawings.
B. Erosion control mat/blanket shall be orientated in vertical strips and anchored with staples, as identified in the Staple Pattern Guide. Adjacent strips shall be abutted or overlapped to allow for installation of a common row of staples that anchor through the nettings of both mats/blankets. Horizontal joints between erosion control mats/blankets shall be sufficiently overlapped with the uphill end on top for a common row of staples so that the staples anchor through the nettings of both mats/blankets.
C. Where exposed to overland sheet flow, a trench shall be located at the uphill termination. Erosion control mat/blanket shall be stapled to the bottom of the trench. The trench shall be backfilled and compacted. Where feasible, the uphill end of the mat/blanket shall be extended 3 feet over the crest of the slope.
D. Slope erosion control mat/blanket shall be overlapped by the channel erosion control mats/blanket sufficiently for a common row of staples to anchor through the nettings of both mats/blankets when terminating into a channel.
E. Weighted Fiber Roll shall be made of compost or other weighted material; or if standard fiber foll is used, it must be anchored in place with stakes per details on Sheet C-3 pf the Project Drawings.
F. Adjacent fiber rolls shall tightly abut and overlap a minimum of 3 feet.
G. Runoff mush not be allowed to run under or around fiber roll.
H. Rolls shall be placed at 10-foot spacing along face of slope.
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Eaton Park (Behind 3101 Brittan Avenue) Technical Provisions Page | TP-46 November 13, 2024
Revised April 25, 2025
PART 4 – MEASUREMENT AND PAYMENT
The Contract unit price paid for Erosion Control shall be measured and paid per square foot (hydroseed) and linear feet (fiber rolls). The price paid shall include full compensation for performing the scope of Work specified in this section, furnishing all labor, materials, tools, and equipment, and doing all Work identified in this section, as shown on the Plans, as specified in the Specifications, and the Special Provisions, and as directed by the Engineer, and no additional compensation will be allowed therefor.
END OF SECTION
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Revised April 25, 2025
SECTION 12 – REMOVAL OF DEBRIS FROM EXISTING V-DITCH
AND EXISTING CATCH BASIN INTAKE GRATE
PART 1 – GENERAL
1.03 SUMMARY
A. This Work shall consist of the removal of debris and vegetation from the existing v-ditch and existing catch basin intake grate located above the existing retaining wall upslope of Eaton Trail.
PART 2 – MATERIALS
NOT USED
PART 3 – EXECUTION
2.04 REMOVAL OF DEBRIS
A. Debris and vegetation from the existing v-ditch and existing catch basin intake grate shall be removed using hand tools. The estimated volume is 2 to 3 cubic yards of material. The Contractor shall not proceed until all unsatisfactory conditions have been remedied.
PART 4 – MEASUREMENT AND PAYMENT
The Contract lump sum price paid for Removal of Debris From Existing V-Ditch and Existing Catch Basin Intake Grate shall include full compensation for furnishing all labor, material, equipment, tools, and incidentals necessary to evaluate the existing catch basin and storm drain line to confirm proper functionality identified in this section, as shown on the Plans, as specified in the Specifications, and the Special Provisions, and as directed by the Engineer, and no additional compensation will be allowed therefor.
END OF SECTION
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APPENDIX A
DAILY WORK REPORT
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EQUIPMENT AND LABOR
IDLE OR DOWN
DESCRIPTION
(Equipment or Labor)
NO.
PERSONS EQUIPMENT NO.
other remarks)
REMARKS
(Reason forIdleness or
WEATHER HOURS - ITEM NO.
Project:
Project No.:
CITY OF SAN CARLOS
DAILY INSPECTION REPORT
Report No.:
Date:
Day:
Shift Start: Stop:
INSPECTOR'S DAILY REPORT
Location and Description of Operation:
NOTES/COMMENTS:
PRINT NAME SIGNATURE TITLE
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APPENDIX B
GEOTECHNICAL REPORT
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GEOTECHNICAL
ENVIRONMENTAL
WATER RESOURCES
CONSTRUCTION SERVICES
COASTAL/MARINE GEOTECHNICS
2350 Mission College Boulevard, Suite 800, Santa Clara, CA 95054 (408) 574-4900 [email protected] www.engeo.com
Project No.
13387.000.033
November 8, 2024
Mr. Evan Cai
City of San Carlos, Public Works Department
600 Elm Street
San Carlos, CA 94070
Subject: Sheldon Avenue
San Carlos, California
Reference: ENGEO. 2023. Storm Damage Assessment and Mitigation Recommendation, Sheldon Avenue, San Carlos, California. August 1, 2023. Project No. 13387.000.028
GEOTECHNICAL RECOMMENDATIONS FOR
STORMWATER CONVEYANCE SYSTEM REPAIR
Dear Mr. Cai:
As requested, we performed a geotechnical exploration to provide recommendations for the repair of the stormwater culvert and pipe directly underneath the fire truck access road at Sheldon Avenue in San Carlos, California (Figure 1). This letter presents our findings, analysis, and recommendations for mitigation.
INTRODUCTION
Purpose and Scope
The purpose of this report, as described in our proposal dated July 24, 2024, is to perform a geotechnical exploration and provide engineering design recommendations in support of the improvements repair. We performed the following services. • Review of available historical aerial photographs, topographic maps, and geologic maps for the study area
• Subsurface exploration consisting of two exploratory soil borings • Topographic survey of the landslide area
• Laboratory testing of select materials sampled during the field exploration • Geotechnical and hydrological data analyses
• Letter preparation summarizing our conclusions and recommendations for the improvements repair
Background
The improvements in the area of distress include a drainage inlet at the base of the slope north of Sheldon Avenue (downslope of Dartmouth Avenue and Highland Avenue), and an outlet on the opposite side of the road, which outlets downslope to the south (towards Arguello Park) at the location shown in Exhibit 1.
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EXHIBIT 1: Site Location
We previously performed a preliminary storm damage assessment of the improvements area (Reference 1), which included a summary of our on-site observations and recommendations for temporary mitigation measures to address the distress that occurred following the heavy rain events in early 2023. As part of our preliminary assessment, we visited the site on July 25, 2023, and observed the condition of the impacted improvements (identified in Photo 1).
PHOTO 1: Overview of Improvements (July 2023)
SITE
Natural drainage
channel
Pipe at
Outlet
Inlet
location
Natural drainage
channel direction
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The landing towards the drainage inlet appeared to have accumulated significant organic debris, including branches and leaves as visible in Photos 2 and 3.
PHOTOS 2 AND 3: Inlet Pipe (left) and View Upslope from Inlet (right)
The outpipe appeared corroded and breaks in the pipe were visible at two locations (Photos 4 and 5). Pockets of erosion were visible below the pipe break locations, which appeared to be creeping inward towards the road (Photos 6 and 7).
PHOTOS 4 AND 5: Outlet Pipe with Visible Breaks
Break in pipe
Erosion below pipe
break location
Pipe at
Inlet
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PHOTOGS 6 AND 7: Erosion of Road Below Pipe Break
The distress of the storm drain improvements likely occurred due to a combination of the following. • Inadequate debris catchment within the drainage channel and prolonged periods of heavy rainfall that exceeded the capacity of the conveyance system and resulted in runoff, which created erosion outside the drainage channel.
• Weakening of the exposed storm drain pipe as a result of long-term corrosion. • Overly wet ground conditions on the outlet side may have weakened the slope subgrade and resulted in movement of soil, which may have caused loss of support of the pipe and the resulting breaks. These wet conditions and pipe leakage likely exacerbated erosion directly beneath the pipe throughout the winter season.
FINDINGS
Regional Geology
The subject site is located within the Coast Range Geomorphic Province. The Coast Range province includes many coalescing mountain ranges and several major structural valleys. These mountain ranges and basement rock are largely made up of marine sedimentary rocks that have been highly faulted, folded, and altered by orogenic processes. The valleys and margins of the ranges are generally filled with Quaternary age alluvial deposits that consist of gravel, sand, silt, and clay. As shown in Figure 2, regional geologic mapping by Brabb et al. (1998) indicates that the failure area is underlain by Jurassic-age chert (fc) of the Franciscan Complex.
Seismicity
The site is located near active faults in the seismically active San Francisco Bay region. Numerous small earthquakes occur every year in the region, and large (greater than Moment Magnitude 7) earthquakes have been recorded and can be expected to occur in the future. The California Geologic Survey (CGS) defines an active fault as one that has had surface displacement within Holocene time (about the last 11,700 years) (CGS, 2018).
We determined the distance to faults in the area using the United States Geological Survey (USGS) Unified Hazard Tool, which uses specific fault segments for analysis. We disaggregated the hazard at the peak ground acceleration (PGA) for a 2,475-year return period. The resulting fault segments are listed in Table 1.
Erosion below pipe
break location
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TABLE 1: Active Faults Capable of Producing Significant Ground Shaking at the Site.
Latitude: 37.50757° Longitude: -122.27709°
FAULT NAME DISTANCE FROM SITE
(miles) MAXIMUM MOMENT MAGNITUDE
San Andreas (Peninsula) [7] 3.1 7.8
Monte Vista – Shannon [0] 3.5 6.8
Pilarcitos [5] 5.0 7.5
San Gregorio – North [10] 10.7 7.7
Notes: Based on USGS Unified Hazard Tool: Dynamic Conterminous U.S. 2018. Numbers in brackets following the fault name refer to specific fault segments.
The fault segments listed above represent sources contributing at least 1 percent to the seismic hazard at the site at the PGA and for the given return period. Gridded or areal sources were not included. The 2015 Working Group on California Earthquake Probabilities evaluated the 30-year probability of a Moment Magnitude 6.7 or greater earthquake occurring on the known active fault systems in the Bay Area in the Third Uniform California Earthquake Rupture Forecast (UCERF3).
UCERF3 estimated an overall probability of 72 percent for the Bay Area as a whole, a probability of
14.3 percent for the Hayward fault.
Aerial Photograph Review
We reviewed historical aerial photographs of the site dated 1941 through 2023, available on www.historicaerials.com and FrameFinder, an online database by University of California, Santa Barbara online database. Review of the photographs indicates that Sheldon Avenue consisted of an undeveloped dirt road until 2002, when the dirt road was replaced by gravel. The road is visible in its current configuration in Historical Aerial 1. Historical topography dating back to 1897 maps the drainage channel similarly to its current condition.
HISTORIC AERIAL 1: Site Conditions (1941)
SITE
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Field Exploration
The field exploration for this study included drilling two exploratory borings on August 29, 2024, to a maximum depth of 26½ feet with a portable minuteman-type rig equipped with a 4-inch-diameter solid-flight auger. The borings were permitted by San Mateo County Environmental Health. The borings were logged in the field and soil samples were collected using either a 2½-inch inside diameter (I.D.) California-type split-spoon sampler fitted with 6-inch-long brass liners or a 2-inch outside diameter (O.D.) standard penetration test (SPT) split-spoon sampler. The penetration of the samplers into underlying materials was recorded as the number of blows needed to drive the sampler 18 inches in 6-inch increments. The samplers were driven with a 140-pound hammer falling a distance of 30 inches employing a rope and cathead system.
Figure 1 , attached, presents the approximate locations of the exploratory borings obtained by the surveyor. Boring logs are attached in Appendix A. The boring logs record blow count results as the actual number of blows required for the last 1 foot of penetration; no conversion factors have been applied.
Surface Conditions
We retained the services of a registered surveyor to complete a topographic survey of the landslide area on September 9 and 10, 2024. The results of this survey are displayed in Figure 1.
Elevations are based on datum NAVD 88. The site is situated within a swale with a north to south gradient. The Sheldon Avenue alignment, which serves as an emergency vehicle access (EVA) road, is unpaved with a gravel surface. The existing 22-inch-diameter metal pipe invert is at Elevation 313.7 feet on the northern side of Sheldon Avenue. The top of the broken pipe on the outlet side is at Elevation 312.9 feet and the bottom of the broken segment is at Elevation 306.0 feet. Sheldon Avenue grade varies roughly between Elevation 316 and 317 feet where the pipe crosses beneath the road.
The gradient upslope of the inlet location varies between roughly 3:1 (horizontal:vertical) and 6:1 along the centerline of the swale. The gradient on the southern side grades from roughly 1:1 at the edge of the road to 3:1.
Subsurface Conditions
Borings 1-B1 and 1-B2 are both located at the southern edge of the fire access road, approximately 2 feet behind the headscarp of the slide south of the fire access road. Boring 1-B1 is on the western side of the existing outlet pipe and Boring 1-B2 is on the eastern side of the existing outlet pipe.
Underlying approximately 4 to 18 inches of aggregate base, we encountered medium dense to dense, fine- to coarse-grained clay in the upper 4½ to 6½ feet, which we interpret as non-engineered fill.
In Boring 1-B1, underlying the fill, we encountered an approximately 7-foot-thick very stiff to hard lean clay layer, with variable amounts of quartzite and chert rock fragments, which we interpret as native material. Underlying this layer, we encountered an approximately 6½-foot-thick very stiff lean clay with sand layer, with variable amounts of quartzite and chert rock fragments, which we interpret as an older colluvium layer. Underlying the old colluvium layer, we encountered an approximately 6-foot-thick very stiff fat clay layer.
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In Boring 1-B2, underlying the fill, we encountered an approximately 3½-foot-thick dense clayey sand layer with fine gravel present, which we interpret as native material. Underlying this layer, we encountered an approximately 8-foot-thick hard lean clay layer with fine- to coarse-grained sand and chert rock fragments. We interpret this layer as an older colluvium layer.
In both borings, we encountered moderately weathered, very weak, Jurassic-age Franciscan clayey sandstone at depths of 17 to 24 feet. We reached auger and sampler refusal in both borings at depths of 17 to 24 feet below existing grade.
Laboratory Testing
We performed the following laboratory tests on select samples recovered during drilling.
TABLE 2: Laboratory Testing
SOIL CHARACTERISTIC TESTING METHOD LOCATION OF RESULTS
Natural Unit Weight and Moisture Content ASTM D7263 Appendix A Atterberg Limits ASTM D4318 Appendix A and B
#200 Wash ASTM D1140 Appendix A and B
Isotropic Triaxial Unconsolidated-Undrained
Compressive Test ASTM D2850 Appendix A and B
Unconfined Compression Test ASTM D2166 Appendix A and B The laboratory test results are shown in the boring logs (Appendix A), with individual test results presented in Appendix B.
Corrosivity Testing
As part of this study, we collected representative soil samples for corrosivity testing. We delivered the sample to CERCO Analytical, who performed testing according to ASTM Test Methods for chloride, resistivity, pH, and redox. We include the CERCO laboratory results in Appendix C. We present a summary of the results in the table below.
TABLE 3: Soil Corrosivity Test Results
SAMPLE
LOCATION
DEPTH
(feet, bgs)
SOIL TYPE SULFATE
(MG/KG)
CHLORIDE
(MG/KG)
RESISTIVITY
(OHMS-CM) PH REDOX (MV)
1-B1 20 - 21½ Fat Clay N.D. N.D. 960 7.64 280
1-B2 17½ - 18 Very Weak
Sandstone N.D. N.D. 4,600 7.82 290
On the basis of the resistivity measurements, the sample is considered ‘very to extremely corrosive’ with respect to corrosion of buried cast/ductile iron and steel structures according to the National Association of Corrosion Engineers’ 2006 “Corrosion Basics: An Introduction” interpretation of resistivity.
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The 2022 California Building Code (CBC) references the 2014 American Concrete Institute Manual, ACI 318-14, Section 19.3.1 for concrete durability requirements. ACI Table 19.3.1.1 provides exposure categories and classes, and Table 19.3.2.1 provides requirements for concrete in contact with soil based upon the exposure class. The soil is categorized as Not Applicable, and is within S0 sulfate exposure class. Considering a ‘Not Applicable’ sulfate exposure, there is no requirement for cement type or water-cement ratio; however, a minimum concrete compressive strength of 2,500 pounds per square inch (psi) is specified by the building code. The structural engineering design requirements for concrete may result in more stringent concrete specifications.
The above recommendations are provided for general reference. If the City of San Carlos desires to investigate this further, we recommend a corrosion consultant be retained to evaluate whether specific corrosion recommendations are advised for the project. 2022 CBC Seismic Design Parameters
The 2022 CBC utilizes seismic design criteria established in the ASCE/SEI Standard “Minimum Design Loads and Associated Criteria for Buildings and Other Structures” (ASCE 7-16). Based on the subsurface conditions encountered, we characterized the site as Site Class C. In Table 4, we provide the 2022 CBC seismic parameters.
TABLE 4: 2022 CBC Seismic Design Parameters, Latitude: 37.50757° Longitude: -122.27709°
PARAMETER VALUE
Site Class C
Mapped MCER Spectral Response Acceleration at Short Periods, SS (g) 1.94 Mapped MCER Spectral Response Acceleration at 1-second Period, S1 (g) 0.80 Site Coefficient, Fa 1.2
Site Coefficient, Fv 1.4
MCER Spectral Response Acceleration at Short Periods, SMS (g) 2.33 MCER Spectral Response Acceleration at 1-second Period, SM1 (g) 1.12 Design Spectral Response Acceleration at Short Periods, SDS (g) 1.55 Design Spectral Response Acceleration at 1-second Period, SD1 (g) 0.75 MCEG Peak Ground Acceleration adjusted for Site Class effects, PGAM (g) 1 Long period transition-period, TL (sec) 12
Slope Stability Analyses
We performed slope stability analyses through the area damaged by the storms considering the proposed mitigation as described in subsequent sections. The slope gradient and other topographic features used in our analyses were based on the results from the topographic survey on September 9 and 10, 2024. Remedial measures are anticipated to include construction of a pier-supported concrete culvert headwall. Our analysis incorporates these measures.
We performed a limit equilibrium slope stability analysis using Spencer’s Method (Spencer, 1973).
The analysis results presented in this letter were obtained using the computer-aided program SLIDE©(Version 9.034). The program analyzes circular slip surfaces within a defined start and end section, as well as a specified search window. The start and end sections are generally identified at locations outside the top and toe of the slope of interest.
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The soil parameters used in the analyses are summarized in Table 5 and are based on interpretation of the results of our laboratory tests, as well as our experience with similar materials.
TABLE 5: Soil Parameters for Slope Stability Analysis
MATERIAL UNIT WEIGHT
(pcf)
MOHR-COULOMB
FRICTION ANGLE
(deg)
COHESION
(psf)
Engineered Fill 125 34 150
Franciscan Formation Sandstone (KJfs) (Bedrock) 130 40 200 Colluvium (Native) 120 30 50
Alluvium (Native) 120 32 50
Riprap 130 40 0
We performed the pseudo-static slope stability analyses in general accordance with guidelines provided in the California Geological Survey’s SP 117A (2008). A seismic coefficient of
0.32 gravity (g) was used to model slope stability under seismic shaking conditions using the simplified methods of Blake et al. (2002). This seismic coefficient was developed using a PGA of
1.04 g, as prescribed in the 2022 California Building Code, a mean Magnitude of 7.8, a distance of less than 10 kilometers (km), and a threshold displacement of 15 centimeters (cm). The results are presented in Appendix C.
The results indicate that construction of the proposed culvert headwall will result in a static factor of safety of 2.7 and a seismic factor of safety of 1.6 against slope failure. It is important to note that seismic displacement cannot be precisely predicted; however, based on the methods used for evaluating seismic stability, we anticipate seismic deformation for slopes within the subject site to be generally in the range of or less than 15 cm (6 inches). According to SP117A, slopes with a pseudo-static stability factor greater than 1.0, considering a seismic coefficient outlined above, are considered stable and correspond to limited landslide movement and damage.
CONCLUSIONS
Based on our borings, topographic survey, and review of aerial photographs, it is our opinion that the soil washout and erosion likely occurred within the alluvium or old colluvium layer downslope of the fire access road and existing culvert.
From a geologic and geotechnical standpoint, it is our opinion that constructing a pier-supported headwall in conjunction with minor slope grooming and placement of riprap downslope of the new headwall will be appropriate to help mitigate further deterioration of the fire access road. The headwall should be constructed with a pipe penetration for the replacement conveyance pipe.
We provide recommendations for the design of the pier supported headwall below.
CULVERT RECOMMENDATIONS
Lateral Soil Pressures
We provide recommendations for the design of headwall. The recommended active lateral equivalent fluid pressures for different backfill conditions are presented in Table 6 for the headwall.
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The headwall should be designed to resist the applicable equivalent fluid-pressures from the tables below plus one-third of any surcharge loads (building, vehicular, construction, etc.) located within a distance equal to the height of the wall. If adequate drainage is not provided or if improvements are planned below the groundwater table, we recommend using the equivalent fluid pressures with hydrostatic pressures presented in the table below. Otherwise, a drainage system, as recommended in the Retaining Wall Drainage section below, should be constructed behind the wall to reduce hydrostatic forces.
TABLE 6: Active (e.g., Cantilevered) Lateral Soil Pressures
BACKFILL
CONDITION
EQUIVALENT FLUID PRESSURES (pcf)
WITHOUT HYDROSTATIC PRESSURE WITH HYDROSTATIC PRESSURE
Level 55 95
3:1 60 100
2:1 65 105
Seismic Design Considerations
Seismic loading conditions need to be considered in the design of retaining walls over 6 feet in height. Under seismic conditions, an active incremental seismic force along the face of a retaining wall should be added to the static pressures, and can be calculated as follows.
ΔP = 16 x H2(for level backslope conditions)
ΔP = 28 x H2 (for up to 2:1 backslope conditions)
H is the design height of the wall (in feet) and ΔP is the seismic active incremental seismic force in pounds per foot of wall. This force has a horizontal direction and should be applied at 0.3 x H from the base of the wall. Since seismic loading requires soil movement, evaluation of the seismic case should include adding the seismic increment to the active soil pressure for all wall types.
Surcharge Loading
If surcharge loads from vehicular traffic and light equipment are expected within a horizontal distance equal to the height of the below-grade walls, the walls should be designed for an additional uniform lateral pressure of 130 pounds per square foot (psf) to be applied over the wall height. Other surcharge loading due to stockpiles of soil, materials, or heavy equipment (such as cranes) will need to be considered separately.
Retaining Wall Drainage
The design of retaining walls may include either graded rock drains or geosynthetic drainage composites behind the retaining walls to reduce hydrostatic lateral forces. For rock drain construction, we recommend two types of rock drain alternatives.
1. A minimum 12-inch-thick layer of Class 2 Permeable Filter Material (Caltrans Specification 68-2.02F) placed directly behind the wall, or
2. A minimum 12-inch-thick layer of washed, crushed rock with 100 percent passing the ¾-inch sieve and less than 5 percent passing the No. 4 sieve. Envelop rock in a minimum 6-ounce, non-woven geotextile filter fabric.
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For both types of rock drains:
1. The rock drain should be placed directly behind the walls of the structure.
2. The rock drains should extend from the wall base to within 12 inches of the top of the wall.
3. A minimum of 4-inch-diameter perforated pipe (glued joints and end caps) should be placed at the base of the wall, inside the rock drain and fabric, with perforations placed down.
4. The pipe should be placed at a gradient at least 1 percent to direct water away from the wall by gravity to a drainage facility.
We should review and approve geosynthetic composite drainage systems prior to use.
Backfill
Backfill behind retaining walls should be placed and compacted in accordance with the Fill Placement section below. Use light compaction equipment within 5 feet of the wall face. If heavy compaction equipment is used, the walls should be temporarily braced to avoid excessive wall movement.
Headwall Pier Foundation Recommendations
We provide design parameters for a pier foundation in Table 7 below. For design purposes, we recommend assuming an average thickness of 10 feet of native soil over sandstone rock.
TABLE 7: Pier Foundation Design Parameters and Recommendations
PARAMETER RECOMMENDATION
Minimum pier diameter 16 inches
Minimum pier depth The minimum depth of embedment shall be 15 feet below bottom of culvert headwall and at least 5 feet into bedrock (whichever is a greater depth).
Maximum allowable skin
friction
For bedrock materials, an allowable skin friction of 1,000 psf may be used.
For native soil materials, an allowable skin friction of 300 psf may be used.
Exclude the upper 2 feet when evaluating the skin friction capacity.
The allowable skin friction values above may be increased by one-third when considering uplift pressures resulting from seismic or wind loads.
Minimum pier spacing Three pier diameters, center-to-center. Where closer spacings are unavoidable, the depths should be increased by at least one-third Passive Resistance
For bedrock materials, an allowable passive resistance pressure of 500 pounds per cubic foot (pcf) acting over two pier diameters may be considered. For native soil materials, an allowable passive resistance pressure of 250 pcf acting over two pier diameters may be considered.
The depth necessary to reach 5 feet of horizontal distance to daylight or at least the upper 2 feet of pier embedment (whichever is greater), should be neglected in passive resistance computation.
To reduce post-construction pier settlements, all loose soil should be removed from the bottom of pier holes prior to pier hole tamping and placing steel reinforcement and concrete. Pier holes should not be allowed to desiccate before placing concrete. Depressions at the top of the piers resulting from drilling or from any other cause, should be backfilled to prevent ponding, and concrete collars at the top of the piers resulting from excessive concrete placement should be removed to prevent unnecessary uplift forces against the piers.
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Hydrology and Calculations for Conveyance Pipe Sizing
According to the San Mateo County Drainage Manual (March 2023), conveyance systems must use pipes that pass flows from the 10-year design storm without surcharging at minimum, and pass up to the 100-year design storm if there is a potential for flooding to neighboring parcels. We calculated the peak flowrates for the 10- and 100-year design storms using the Rational Method, as outlined in the San Mateo Drainage Manual. The parameters used for the Rational Method and the resulting peak flow rates are outlined in Table 8.
TABLE 8: Peak Flow Rate Calculations
RATIONAL METHOD PARAMETERS
Drainage Area (acres) 5.12
Runoff Coefficient 0.5
Rainfall Intensity (in/hr) 10-year event - 1.93
100-year event - 2.65
Time of Concentration (minutes) 10
PEAK FLOW RATES (cfs)
10-YEAR EVENT 100-YEAR EVENT PIPE CAPACITY
4.9 6.7 10
The drainage area to the culvert (Figure 4) consists mostly of open space between Sheldon Avenue and Highland Avenue, as well as discharge from two City storm drains, as shown in the San Carlos Sewer and Storm Drainage System GIS map (San Mateo County GIS Open Data, 2015). The rainfall intensities for the site location were obtained from NOAA’s Atlas 14 and the runoff coefficient is an area-weighted average using 0.3 for undeveloped areas and 0.9 for developed areas.
We evaluated the ability of the culvert to pass the 10- and 100-year design storm peak flow rates using the nomograph method outlined by the Federal Highway Administration in the Hydraulic Design of Highway Culverts (Third Edition, April 2012). Based on the nomograph chart for inlet-controlled concrete, circular pipes at an approximately 2 percent slope, a 22-inch-diameter culvert conveys both the 10- and 100-year design storm peak flow rates without surcharging. At full capacity, the described culvert conveys approximately 10 cubic feet per second (cfs) without the need for additional head. The 10- and 100-year design flow rates pass through the culvert inlet at approximately 61 percent and 75 percent of the inlet capacity, respectively.
Riprap Apron
To mitigate further erosion and material washout beneath the culvert, we recommend constructing a riprap apron 2 feet beyond each side of the pipe horizontally, extending approximately 10 feet downslope of the culvert and approximately 24 inches below the ground surface. We recommend using Class 2 riprap. A filter fabric should be placed below the riprap aprons.
EARTHWORK RECOMMENDATIONS
Loose Surficial Soil Removal
We recommend minor slope grooming, including removal of soft or loose soil and debris downslope of the culvert.
9.g
May 12, 2025 Packet Pg. 575
City of San Carlos, Public Works Department 13387.000.033 Sheldon Avenue November 8, 2024
GEOTECHNICAL RECOMMENDATIONS FOR Page 13
STORMWATER CONVEYANCE SYSTEM REPAIR
Grading and Fill Placement
Removal of the existing broken pipe, placement of a replacement pipe, and construction of the cast-in-place headwall will require excavation of the road and placement of engineered fill.
Grading operations should meet the requirements of this letter and should be observed and tested by our field representative. We should be notified a minimum of 3 days prior to grading in order to coordinate its schedule with the grading contractor.
Selection of Materials
With the exception of organically contaminated materials (soil that contains more than 3 percent organic content by weight), we anticipate the site soil is suitable for use as engineered fill.
Oversized soil or rock materials (those exceeding two-thirds of the lift thickness or 6 inches in dimension, whichever is less) should be removed from the fill and broken down to meet this requirement or otherwise offhauled. We should be informed when import materials are planned for the site. Import materials should be submitted to and approved by the geotechnical engineer prior to delivery at the site and should conform to the requirements provided in the Supplemental Recommendations (Appendix D).
Fill Placement
Once a suitable firm base is achieved, the exposed non-yielding surface should be scarified to a depth of 12 inches, moisture conditioned, and recompacted to provide adequate bonding with the initial lift of fill. All fills should be placed in thin lifts, with the lift thickness not to exceed 8 inches or the depth of penetration of the compaction equipment used, whichever is less.
The following compaction control requirements should be anticipated for engineering fill materials. • Test Procedures: ASTM D1557
• Required Moisture Content: Not less than 2 percentage points above optimum moisture content
• Required Relative Compaction: Not less than 90 percent Relative compaction refers to the in-place dry density of soil expressed as a percentage of the maximum dry density of the same material.
LIMITATIONS
This letter presents geotechnical recommendations for design of the improvements discussed above. The conclusions and recommendations contained in this report are solely professional opinions. We strive to perform our professional services in accordance with generally accepted principles and practices currently employed in the area; there is no warranty, express or implied.
There are risks of earth movement and property damages inherent in building on or with earth materials. We are unable to eliminate all risks; therefore, we are unable to guarantee or warrant the results of our services.
9.g
May 12, 2025 Packet Pg. 576
City of San Carlos, Public Works Department 13387.000.033 Sheldon Avenue November 8, 2024
GEOTECHNICAL RECOMMENDATIONS FOR Page 14
STORMWATER CONVEYANCE SYSTEM REPAIR
CLOSING
If you have any questions or comments regarding this letter, please call and we will be glad to discuss them with you.
Sincerely,
ENGEO Incorporated
Lydia Kelley, PE Robert H. Boeche, CEG
Yanet Zepeda, GE
lk/yz/rhb/ar
Attachments: Figures 1 through 4
Appendix A – Boring Logs
Appendix B – Laboratory Test Data
Appendix C – Slope Stability Analysis Results
Appendix D – Supplemental Recommendations
9.g
May 12, 2025 Packet Pg. 577
13387.000.033
November 8, 2024
FIGURES
Figure 1 – Site Plan
Figure 2 – Regional Geologic Map
Figure 3 – Cross Section A-A’ and B-B’
Figure 4 – Watershed Map
9.g
May 12, 2025 Packet Pg. 578
1-B1
1-B2
A'
A
B
B'
Expect Excellence
SITE PLAN
SHELDON AVENUE
SAN CARLOS, CALIFORNIA
13387.000.033
AS SHOWN 1
N
0 FEET 30
EXPLANATION
Sheldon Avenue
Boring (ENGEO, 2024) Cross Section Location 1-B2
9.g
May 12, 2025 Packet Pg. 579
N
Expect Excellence
0 FEET 2000
REGIONAL GEOLOGIC MAP
SHELDON AVENUE
SAN CARLOS, CALIFORNIA
13387.000.033
AS SHOWN 2
SITE
af
Qhaf
Qpaf
fs
OVERTURNED
ANTICLINE SYNCLINE
INCLINED
STRIKE AND DIP OF STRATA
VERTICAL
AXIS OF FOLD
EXPLANATION
DIRECTION OF LANDSLIDE MOVEMENT
Geologic Contact-dashed Where Gradational Or
Approximately Located
Fault-dashed Where Inferred, Dotted Where
Concealed, Queried Where Existence Is
Doubtful. Sawteeth Are On Upper Plate Of
Low Angle Thrust Fault
Artificial Fill
Alluvial Fan and Fluvial Deposits (Holocene)
Alluvial Fan and Fluvial Deposits (Pleistocene)
Franciscan Sandstone
Franciscan Greenstone
Franciscan Chert
fg
fc
9.g
May 12, 2025 Packet Pg. 580
Elevation (NAVD88, feet)
Elevation (NAVD88, feet) Horizontal Distance (feet) Cross Section A A' A-A' 0 320 340 300 280 260 240 320 340 300 280 260 240 0 20 40 60 80 100 120 140 160 180 200 1-B1SCCLCLCH 456234953824 50/6" 70 1-B2SCSCCL 73 50/5" 394755 Elevation (NAVD88, feet) Elevation (NAVD88, feet) Horizontal Distance (feet) Cross Section B B' B-B' 320 300 280 260 240 1-B1SCCLCLCH 456234953824 50/6" 70 SCSCCL 73 50/5" 3947551-B2 340 320 300 280 260 240 340 20 40 Expect Excellence CROSS SECTION A-A' AND B-B' SHELDON AVENUE SAN CARLOS, CALIFORNIA 13387.000.033 AS SHOWN 3 Disclaimer: Cross Section Is For Illustration Purposes Only. The Transition Between Materials May Be Abrupt Or Gradual. Variations Should Be Expected. Artificial Fill Alluvial Fan Deposits (Holocene) Older Colluvial Deposits(Pleistocene and/or Holocene) Franciscan Complex sedimentary rocks (Late Cretaceous) Boring (ENGEO, 2024) Existing Ground Surface Approximate Proposed Ground Surface Geologic Contact, dashed where approximate queried where inferred Groundwater Elevation ? 1-B2 Legend Qhf Qoc Kfsaf Qhf Qoc Kfs af QhfQoc Kfs af Qhf 4 DRAWN BY: NWC CHECKED BY: YZ
PROJECT NO. : 13387.000.033
SAN CARLOS, CALIFORNIA
SHELDON AVENUE
WATERSHED MAP
Barford Ave
Northam Ave
Wellington Dr
D
a
rt
m
o
uth
Ave
S
h
elf
o
r
d
A
v
e
S
h
elf
o
r
d
A
v
e
P
e
p
p
e
r
L
n
Sheldon Ave
C
o
t
t
a
g
e
L
n
ourtland Rd
Shelford Ave
Buckland Ave
Erlin Dr
Northam Ave
Highland Ave
560
520
480
440
400
360
320
480
440
400
280
240
320
480
BASEMAP SOURCE: GOOGLE EARTH MAPPING SERVICE 2022; AND USGS, 2017 0 100 200
FEET
EXPLANATION
────────────────────────────────────────
Drainage Area
Index Contour (Feet, NAVD88)
Intermediate Contour (Feet, NAVD88)
Storm Drain Pipe Connection
Flow Direction
Culvert Location
SCALE: AS SHOWN
PATH: G:\DRAFTING\PROJECTS\_12000 TO 13999\13387\13387000033\GEOTECHNICAL\GEX\SHELDON AVENUE\13387000033_SHELDONAVENUE.APRX LAYOUT: 02. SITE PLAN 8.5 X 11 PORTRAIT USER: NCLOUGH
COPYRIGHT @ 2024 BY ENGEO INCORPORATED. THIS DOCUMENT MAY NOT BE REPRODUCED IN WHOLE OR IN PART BY ANY MEANS WHATSOEVER, NOR MAY IT BE QUOTED WITHOUT THE EXPRESS WRITTEN CONSENT OF ENGEO INCORPORATED.
ORIGINAL FIGURE PRINTED IN COLOR
FIGURE NO.
Upper Drainage Area
Connected to Lower
Drainage Area Via a
Storm Drain Pipe
Total Drainage Area: 5.12 Acres
Time of Concentration: 10 Minutes
Design Storm Peak Flowrates: Q10 - 4.9 cfs, Q100 - 6.7 cfs
9.g
May 12, 2025 Packet Pg. 582
13387.000.033
November 8, 2024
APPENDIX A
Key to Boring Logs
Boring Logs
9.g
May 12, 2025 Packet Pg. 583
SILTS AND CLAYS LIQUID LIMIT GREATER THAN 50%
SILTS AND CLAYS LIQUID LIMITS 50% OR LESS
DESCRIPTION
HIGHLY ORGANIC SOILS
SILTS AND CLAYS
200 40 10 4
MAJOR TYPES
GW - Well graded gravels or gravel-sand mixtures
SC - Clayey sand, sand-clay mixtures
OL - Low plasticity organic silts and clays
MH - Inorganic silt with high plasticity
CH - Inorganic clay with high plasticity
OH - Highly plastic organic silts and clays
FINE
RELATIVE DENSITY
BLOWS/FOOT
GRAIN SIZES
KEY TO BORING LOGS
MEDIUM COARSE
3" 12"
COBBLES BOULDERS FINE COARSE
PT - Peat and other highly organic soils
ML - Inorganic silt with low to medium plasticity
SAND GRAVEL
LINE TYPES
_ _ _ _ _ _ GROUND-WATER SYMBOLS
MOISTURE CONDITION
GP - Poorly graded gravels or gravel-sand mixtures
SANDS AND GRAVELS
GM - Silty gravels, gravel-sand and silt mixtures
GC - Clayey gravels, gravel-sand and clay mixtures
SW - Well graded sands, or gravelly sand mixtures
SP - Poorly graded sands or gravelly sand mixtures
CL - Inorganic clay with low to medium plasticity
SILTS
AND
CLAYS
SAMPLER SYMBOLS
CONSISTENCY
U.S. STANDARD SERIES SIEVE SIZE CLEAR SQUARE SIEVE OPENINGS SM - Silty sand, sand-silt mixtures
3/4 "
GRAVELS
MORE THAN HALF
COARSE FRACTION
IS LARGER THAN
NO. 4 SIEVE SIZE
SANDS
MORE THAN HALF
COARSE FRACTION
IS SMALLER THAN
NO. 4 SIEVE SIZE
CLEAN GRAVELS WITH
LITTLE OR NO FINES
GRAVELS WITH OVER
12 % FINES
CLEAN SANDS WITH
LITTLE OR NO FINES
SANDS WITH OVER
12 % FINES COARSE-GRAINED SOILS MORE THAN HALF OF MAT'L LARGER THAN #200 SIEVE THAN #200 SIEVE FINE-GRAINED SOILS MORE THAN HALF OF MAT'L SMALLER
VERY LOOSE
LOOSE
MEDIUM DENSE
DENSE
VERY DENSE
0-4
4-10
10-30
30-50
OVER 50
VERY SOFT
SOFT
MEDIUM STIFF
STIFF
VERY STIFF
HARD
0-250
250-500
500-1,000
1,000-2,000
2,000-4,000
> 4,000
DRY
MOIST
WET
Absence of moisture, dusty, dry to touch
Damp but no visible water
Visible freewater
Solid - Layer Break
Dashed - Gradational or approximate layer break
Groundwater level during drilling
Stabilized groundwater level
Modified California (3-inch O.D.) Sampler
California (2.5-inch O.D.) Sampler
S.P.T. Split Spoon (2-inch O.D.) Sampler
Shelby Tube
Continuous Core
Bag Samples
Grab Samples
No Recovery
Expect Excellence
NOTES
1. Standard Penetration Tests (S.P.T.) number of blows for a 140-pound hammer falling 30 inches to drive a 2-inch O.D. (1-3/8-inch I.D.) sampler, assuming 60% hammer efficiency
2. Approximate shear strength measured in field at time of drilling in units of pounds per square foot
(S.P.T.)1 APPROXIMATE SHEAR
STRENGTH (PSF)2
9.g
May 12, 2025 Packet Pg. 584
SOIL BORING 1-B1
LATITUDE: 37.5075 LONGITUDE: -122.2770
Sheldon Ave
San Carlos, California
13387.000.033
DATE DRILLED: 08/27/2024
HOLE DEPTH: 26.5 ft
HOLE DIAMETER: 4 in
SURFACE ELEV.: ~315.9 ft
LOGGED BY / REVIEWED BY: Lydia Kelley / Yanet Zepeda
DRILLING CONTRACTOR: Access Soil Drilling
DRILLING METHOD: Solid Flight Auger
HAMMER TYPE: 140 lb. Rope and Cathead
Depth (ft)
5 10
15 Elevation (ft)
315
310
305
300
Sample Graphic
Visual Classification and Remarks
AGGREGATE BASE
CLAYEY SAND (SC), dark reddish brown, medium dense, dry to moist, fine- to coarse-grained sand, Fine to coarse
angular rock fragments of quartzite chert and sandstone manganese and iron oxide staining pockets of yellowish brown sand [FILL]
LEAN CLAY WITH SAND (CL), dark reddish brown to
brown, hard, moist, Approximately 20 - 30 percent fine- to medium-grained sand quartzite and chert fragments rootlets present [NATIVE]
Greenish gray to brown, very stiff, moist, Manganese
nodules, approximately 10 percent fine quartz and chert rock fragments
SANDY LEAN CLAY (CL), reddish brown mottled black
orange greenish gray, very stiff, moist, Approximately 30 to 40 percent fine- to coarse-grained sand, manganese and iron oxide staining [OLD COLLUVIUM]
Quartzite cobble in the shoe
Chert fragments and rootlets present
FAT CLAY (CH), gray mottled brown, stiff, moist,
Manganese staining [ALLUVIUM]
Graphic Log
Water Levels
Uncorrected
N-Value
45 62
34 95
38 Atterberg Limits (LL-PL-PI)
42-19-23
Fines (%)
16 Moisture Content (%)
7.9 7.3
14.2 21.1
15.7 Dry Density (pcf)
106.5
106.2
99.4 105.0
115.4
Shear Strength (psf)
2736
2481
Compressive Strength
(psf)
Pocket
Penetrometer (tsf)
4.5 2
2.25 3.5
4.0 Torvane (psf)
1.25 9.g
May 12, 2025 Packet Pg. 585
SOIL BORING 1-B1
LATITUDE: 37.5075 LONGITUDE: -122.2770
Sheldon Ave
San Carlos, California
13387.000.033
DATE DRILLED: 08/27/2024
HOLE DEPTH: 26.5 ft
HOLE DIAMETER: 4 in
SURFACE ELEV.: ~315.9 ft
LOGGED BY / REVIEWED BY: Lydia Kelley / Yanet Zepeda
DRILLING CONTRACTOR: Access Soil Drilling
DRILLING METHOD: Solid Flight Auger
HAMMER TYPE: 140 lb. Rope and Cathead
Depth (ft)
25 30
35 Elevation (ft)
295
290
285
280
Sample Graphic
Visual Classification and Remarks
FAT CLAY (CH), gray mottled brown, stiff, moist,
Manganese staining [ALLUVIUM]
SANDSTONE, bluish gray and yellowish brown, very weak,
moderately weathered, Fine-grained sand
Quartzite fragments present
Bottom of boring at 26.5 feet below ground surface.
Groundwater encountered at 19 feet below ground surface at the time of drilling and observed at 8 feet below ground surface after drilling. Hole backfilled with grout.
Graphic Log
Water Levels
Uncorrected
N-Value
24 50/6
"
70 Atterberg Limits (LL-PL-PI)
28-16-12
Fines (%)
34 Moisture Content (%)
10.5 Dry Density (pcf)
Shear Strength (psf)
Compressive Strength
(psf)
Pocket
Penetrometer (tsf)
Torvane (psf)
9.g
May 12, 2025 Packet Pg. 586
Depth Range: 1 - 2.5' 1-B1
PROJECT Sheldon Ave PROJECT NO. 13387.000.033
CLIENT City of San Carlos FIGURE NO. Appendix
LOCATION San Carlos, CA
9.g
May 12, 2025 Packet Pg. 587
Sheldon Ave
Soil Boring: 1-B2
Project Location: Sheldon Avenue, San
Carlos, CA Date Drilled: 08/27/2024 Logged By: Lydia Kelley Project No: 13387.000.033 Hole Depth: 18 ft Reviewed By: Yanet Zepeda Lat / long: 37.507561, -122.277033 Boring Diameter: 4 in Drilling Firm: Limited Access Drilling Surface Elevation: 315.4 ft Method: Solid Flight Auger Hammer Type: 140 lb. Rope and Cathead Depth (ft) 5 10
15 Elevation (ft)
315
310
305
300
Sample Graphic
Visual Classification and Remarks
AGGREGATE BASE
CLAYEY SAND (SC), reddish brown, dense, dry to moist,
fine- to coarse-grained sand, Pockets of yellow sand sandstone rock fragments [FILL]
Very dense, fine angular gravel
Quartzite cobble in shoe
CLAYEY SAND (SC), dark brown, dense, dry to moist, fineto coarse-grained sand, Fine angular gravel, moderately cemented, manganese staining [ALLUVIUM]
Moist to wet
LEAN CLAY WITH SAND (CL), dark reddish brown, very
stiff, moist to wet, Approximately 20 to 30 percent fine- to coarse-grained sand up to 1 to 2 inch diameter rock fragments including chert manganese staining roots present [OLD COLLUVIUM] SANDSTONE, bluish gray and yellowish brown, very weak,
moderately weathered, Manganese staining
Bottom of boring at approximately 18 feet below ground surface.
Groundwater encountered at 16 feet below ground surface at the time of drilling. Hole backfilled with grout.
Graphic Log
Water Levels
Uncorrected
N-Value
73 55
50 /5"
47 39
Atterberg Limits (LL-PL-PI)
Fines (%)
36 Moisture Content (%)
12.6 Dry Density (pcf)
119.1
Shear Strength (psf)
2059
Compressive Strength
(psf)
Pocket
Torvane (psf)
9.g
May 12, 2025 Packet Pg. 588
13387.000.033
November 8, 2024
APPENDIX B
Laboratory Test Data
9.g
May 12, 2025 Packet Pg. 589
METHOD A OR B
METHOD A OR B
METHOD A OR B
METHOD A OR B
BBB
SAMPLE ID
DEPTH (ft.)
DEPTH (ft.)
DRY DENSITY (pcf)
DEPTH (ft.)
MOISTURE-DENSITY DETERMINATION REPORT
ASTM D7263
SAMPLE ID [email protected] [email protected]
1-B1@
13-13.5
DEPTH (ft.) 6-6.5 8.5-9 13-13.5
MOISTURE CONTENT (%) 7.3 14.2 15.7
METHOD A OR B
DRY DENSITY (pcf) 106.2 99.4 115.4
MOISTURE CONTENT (%)
DRY DENSITY (pcf)
SAMPLE ID
MOISTURE CONTENT (%)
DEPTH (ft.)
DRY DENSITY (pcf)
MOISTURE CONTENT (%)
SAMPLE ID
DRY DENSITY (pcf)
MOISTURE CONTENT (%)
SAMPLE ID
REPORT DATE: 9/6/2024
TESTED BY: G. Criste
CLIENT: City of San Carlos, CA
PROJECT NAME: Sheldon Ave, 3101 Brittan, Chilton Park Post Storm Assessment REVIEWED BY: D. Seibold
PROJECT NO: 13387.000.033 PH001 T001
PROJECT LOCATION: San Carlos, CA
3420 Fostoria Way, Suite E | Danville, CA 94526 | T: (925) 355-9047 | F: (925) 355-9052 | www.engeo.com
9.g
May 12, 2025 Packet Pg. 590
MOISTURE CONTENT (%)
METHOD A OR B
DEPTH (ft.)
SAMPLE ID
MOISTURE CONTENT (%)
METHOD A OR B
DEPTH (ft.)
SAMPLE ID
MOISTURE CONTENT (%)
METHOD A OR B
DEPTH (ft.)
SAMPLE ID
MOISTURE CONTENT (%)
METHOD A OR B
DEPTH (ft.)
SAMPLE ID
MOISTURE CONTENT (%)
METHOD A OR B
DEPTH (ft.)
SAMPLE ID
MOISTURE CONTENT (%)
3420 Fostoria Way, Suite E | Danville, CA 94526 | T: (925) 355-9047 | F: (925) 355-9052 | www.engeo.com TESTED BY:
REPORT DATE:
PROJECT LOCATION:
PROJECT NO:
PROJECT NAME:
CLIENT:
G. Criste
9/9/2024
San Carlos, CA
13387.000.033 PH001 T001
REVIEWED BY: D. Seibold
B
MOISTURE CONTENT REPORT
ASTM D2216
Sheldon Ave, 3101 Brittan, Chilton Park Post Storm Assessment City of San Carlos
METHOD A OR B
DEPTH (ft.) 24.5-25
10.5 SAMPLE ID
1-B1@
24.5-25
9.g
May 12, 2025 Packet Pg. 591
[email protected]
LIQUID AND PLASTIC LIMITS TEST REPORT
ASTM D4318
[email protected]'
SAMPLE ID TEST METHOD REMARKS
3420 Fostoria Way, Suite E | Danville, CA 94526 | T: (925) 355-9047 | F: (925) 355-9052 | www.engeo.com PROJECT LOCATION:
PROJECT NO:
PROJECT NAME:
CLIENT:
REPORT DATE:
K. Nguyen
G. Criste
TESTED BY:
REVIEWED BY:
Sheldon Ave, 3101 Brittan, Chilton Park Post Storm Assessment [email protected]' 8.5-9' See exploration logs 42 19
[email protected] 25-26.5 See exploration logs 28 16
SAMPLE ID DEPTH (ft) MATERIAL DESCRIPTION LL PL PI
23 12
City of San Carlos
13387.000.033 PH001 T001
San Carlos, CA
9/24/2024
PI: ASTM D4318, Wet Method
PI: ASTM D4318, Wet Method Comingled with [email protected]
0 10
20 30
40 50
60 70
80 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140
PLASTICITY INDEX
LIQUID LIMIT
MH or OH
CH or OH
CL-ML ML or OL
CL or OL
Dashed Line indicates the approximate
upper limit boundary for natural soils
9.g
May 12, 2025 Packet Pg. 592
===
===
===
FINE COARSE
DEPTH (ft):
1 COARSE MEDIUM FINE
16 ATTERBERG LIMITS
PL =
SAMPLE ID:
1-2.5
[email protected]
8 15 38 22
% FINES
SILT CLAY
% +75mm
% GRAVEL % SAND
0.2786 mm D15
ASTM D6913, Method A
PARTICLE SIZE DISTRIBUTION REPORT
SIEVE
SIZE
PERCENT
FINER
SPEC.*
PERCENT
PASS?
(X=NO)
SOIL DESCRIPTION
See exploration logs
1 in.
¾ in.
½ in.
⅜ in.
#4
#10
#20
#40
#60
#100
#140
#200
100
99 99
97 91
76 55
38 28
21 18
16 * (no specification provided)
LL = PI =
COEFFICIENTS
D90 4.4838 mm D85 3.3607 mm D60 1.0421 mm
D50 0.6956 mm D30
REMARKS
CLASSIFICATION
USCS =
D10 Cu Cc
3420 Fostoria Way, Suite E | Danville, CA 94526 | T: (925) 355-9047 | F: (925) 355-9052 | www.engeo.com REPORT DATE: 9/9/2024
TESTED BY: K. Nguyen
REVIEWED BY: G. Criste
CLIENT: City of San Carlos
PROJECT NAME: Sheldon Ave, 3101 Brittan, Chilton Park Post Storm Assessment PROJECT NO: 13387.000.033 PH001 T001
PROJECT LOCATION: San Carlos, CA
0 10
20 30
40 50
60 70
80 90
100
100 10 1 0.1 0.01 0.001
PERCENT FINER
GRAIN SIZE - mm.
6 in.
3 in.
2 in.
1 ½ in.
1 in.
¾ in.
½ in.
⅜ in.
#4
#10
#20
#40
#60#100
#140
#200
9.g
May 12, 2025 Packet Pg. 593
===
===
===
FINE COARSE
DEPTH (ft):
COARSE MEDIUM FINE
34 ATTERBERG LIMITS
PL =
SAMPLE ID:
25-26.5
[email protected]
% FINES
SILT CLAY
% +75mm
% GRAVEL % SAND
D15
ASTM D1140, Method B
PARTICLE SIZE DISTRIBUTION REPORT
SIEVE
SIZE
PERCENT
FINER
SPEC.*
PERCENT
PASS?
(X=NO)
SOIL DESCRIPTION
See exploration logs
#200 34
Soak time = 180 min
Dry sample weight = 221.3 g
Largest particle size ≥ No. 4 Sieve
Comingled with [email protected]
* (no specification provided)
LL = PI =
COEFFICIENTS
D90 D85 D60
D50 D30
REMARKS
CLASSIFICATION
USCS =
D10 Cu Cc
3420 Fostoria Way, Suite E | Danville, CA 94526 | T: (925) 355-9047 | F: (925) 355-9052 | www.engeo.com REPORT DATE: 9/10/2024
TESTED BY: K. Nguyen
REVIEWED BY: G. Criste
CLIENT: City of San Carlos
PROJECT NAME: Sheldon Ave, 3101 Brittan, Chilton Park Post Storm Assessment PROJECT NO: 13387.000.033 PH001 T001
PROJECT LOCATION: San Carlos, CA
0 10
20 30
40 50
60 70
80 90
100
100 10 1 0.1 0.01 0.001
PERCENT FINER
GRAIN SIZE - mm.
6 in.
3 in.
2 in.
1 ½ in.
1 in.
¾ in.
½ in.
⅜ in.
#4
#10
#20
#40
#60#100
#140
#200
9.g
May 12, 2025 Packet Pg. 594
===
===
===
FINE COARSE
DEPTH (ft):
COARSE MEDIUM FINE
36 ATTERBERG LIMITS
PL =
SAMPLE ID:
8.5-9
[email protected]
% FINES
SILT CLAY
% +75mm
% GRAVEL % SAND
D15
ASTM D1140, Method B
PARTICLE SIZE DISTRIBUTION REPORT
SIEVE
SIZE
PERCENT
FINER
SPEC.*
PERCENT
PASS?
(X=NO)
SOIL DESCRIPTION
See exploration logs
#200 36
Soak time = 180 min
Dry sample weight = 162.5 g
Largest particle size ≥ No. 4 Sieve
* (no specification provided)
LL = PI =
COEFFICIENTS
D90 D85 D60
D50 D30
REMARKS
CLASSIFICATION
USCS =
D10 Cu Cc
3420 Fostoria Way, Suite E | Danville, CA 94526 | T: (925) 355-9047 | F: (925) 355-9052 | www.engeo.com REPORT DATE: 9/9/2024
TESTED BY: K. Nguyen
REVIEWED BY: G. Criste
CLIENT: City of San Carlos
PROJECT NAME: Sheldon Ave, 3101 Brittan, Chilton Park Post Storm Assessment PROJECT NO: 13387.000.033 PH001 T001
PROJECT LOCATION: San Carlos, CA
0 10
20 30
40 50
60 70
80 90
100
100 10 1 0.1 0.01 0.001
PERCENT FINER
GRAIN SIZE - mm.
6 in.
3 in.
2 in.
1 ½ in.
1 in.
¾ in.
½ in.
⅜ in.
#4
#10
#20
#40
#60#100
#140
#200
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FINAL PARAMETERS
CELL PRESSURE (PSF) 1094.4
4117.3
CELL PRESSURE
n/a
504.0
n/a
7.87 36.03
0.051
5471.1
21.08 92.85
0.050
4962.3
10.528
SATURATION (%)
STRAIN RATE (%/MIN.)
PEAK DEVIATOR STRESS (PSF)
AXIAL STRAIN AT FAILURE (%)
[email protected]
[email protected] [email protected]
21.08 105.00
92.85 0.618
2.410
5.034
0.594
2.400
5.052
2.089
2.720
5.021
80.42 0.426
12.59 INITIAL PARAMETERS
MOISTURE (%)
DRY DENSITY (PCF)
SATURATION (%)
VOID RATIO
3420 Fostoria Way, Suite E | Danville, CA 94526 | T: (925) 355-9047 | F: (925) 355-9052 | www.engeo.com REPORT DATE: 9/9/2024
TESTED BY: G. Criste
13387.000.033 PH001 T001
CLIENT: City of San Carlos
PROJECT LOCATION: San Carlos, CA
REVIEWED BY: D. Seibold
PROJECT NAME: Sheldon Ave, 3101 Brittan, Chilton Park Post Storm Assessment PROJECT NO:
ISOTROPIC UNCONSOLIDATED UNDRAINED TRIAXIAL REPORT
ASTM D2850
15.336
2735.6 2481.2 2058.6
5975.1 6056.7 5211.7
504.0 1094.4 1094.4
3.365
SPECIMEN
7.87 106.50
36.03 [email protected]
MOISTURE (%)
2.105
COHESION AT FAILURE WITH A
ZERO FRICTION ANGLE (Ø=0)
σ1 (PSF)
σ3 (PSF)
COHESION, C (PSF)
PRINCIPLE STRESSES AT FAILURE
119.10
DIAMETER (IN.)
HEIGHT (IN.)
DIAMETER-TO-HEIGHT RATIO
LIQUID LIMIT (ASTM D4318)
[email protected]
PLASTIC LIMIT (ASTM D4318)
SPECIFIC GRAVITY (ASTM D854) 2.720
2.089
2.404
[email protected]: Gravel (0.19-1.5")
REMARKS
80.42 0.050
[email protected]
12.59 2.720
BACK PRESSURE (PSF) n/a
1094.4
0 1000
2000
3000
0 1000 2000 3000 4000 5000 6000 7000 8000
SHEAR STRESS (psf)
NORMAL STRESS (psf)
MOHR CIRCLES
[email protected] [email protected] [email protected]
0 1000
2000
3000
4000
5000
6000
0 4 8 12 16
STRESS (psf)
AXIAL STRAIN (%)
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3420 Fostoria Way, Suite E | Danville, CA 94526 | T: (925) 355-9047 | F: (925) 355-9052 | www.engeo.com San Carlos, CA
REPORT DATE: 9/9/2024
TESTED BY: G. Criste
PROJECT NO: 13387.000.033 PH001 T001
CLIENT:
PROJECT LOCATION:
REVIEWED BY: D. Seibold
City of San Carlos
PROJECT NAME: Sheldon Ave, 3101 Brittan, Chilton Park Post Storm Assessment
ISOTROPIC UNCONSOLIDATED UNDRAINED TRIAXIAL REPORT
ASTM D2850
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13387.000.033
November 8, 2024
APPENDIX C
Slope Stability Analysis Results
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2.7 W
W
65.00 lbs/ft2
130.00 lbs/ft2
2.7 Material Name Color Unit Weight (lbs/ft3) Strength Type Cohesion (psf) Phi (°) Sandstone (Franciscan) 130 Mohr-Coulomb 200 40
Old Colluvium 120 Mohr-Coulomb 50 30
Fill 125 Mohr-Coulomb 150 34
Alluvium 120 Mohr-Coulomb 50 32
Rip Rap 130 Mohr-Coulomb 0 40
Pile 145 Infinite Strength 400 375 350 325 300 275 250
-75 -50 -25 0 25 50 75 100 125 150 175 200 225
Global Slope Stability Analysis San Carlos, California
Company ENGEO Incorporated Drawn By
L. Kelley / Y. Zepeda
Analysis October 3, 2024 Spencer
Project
Sheldon Avenue
SLIDEINTERPRET 9.035
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1.6 W
W
65.00 lbs/ft2
130.00 lbs/ft2
1.6 Material Name Color Unit Weight (lbs/ft3) Strength Type Cohesion (psf) Phi (°) Sandstone (Franciscan) 130 Mohr-Coulomb 200 40
Old Colluvium 120 Mohr-Coulomb 50 30
Fill 125 Mohr-Coulomb 150 34
Alluvium 120 Mohr-Coulomb 50 32
Rip Rap 130 Mohr-Coulomb 0 40
Pile 145 Infinite Strength
0.32 400 350 300 250
-50 0 50 100 150 200 250
Global Slope Stability Analysis San Carlos, California
Company ENGEO Incorporated Drawn By
L. Kelley / Y. Zepeda
Analysis October 3, 2024 Spencer
Project
Sheldon Avenue
SLIDEINTERPRET 9.035
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November 8, 2024
APPENDIX D
Supplemental Recommendations
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Copyright © 2020 by ENGEO Incorporated. This document
may not be reproduced in whole or in part by any means
whatsoever, nor may it be quoted or excerpted without the express written consent of ENGEO Incorporated.
SUPPLEMENTAL RECOMMENDATIONS
Prepared by
ENGEO Incorporated
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Supplemental Recommendations
TABLE OF CONTENTS
GENERAL INFORMATION .........................................................................I PREFACE....................................................................................................I DEFINITIONS..............................................................................................I PART I - EARTHWORK..............................................................................2
1.0 GENERAL............................................................................................................ 2
1.1 WORK COVERED .............................................................................................................. 2
1.2 CODES AND STANDARDS ............................................................................................... 2
1.3 TESTING AND OBSERVATION......................................................................................... 2
2.0 MATERIALS......................................................................................................... 2
2.1 STANDARD ........................................................................................................................ 2
2.2 ENGINEERED FILL AND BACKFILL ................................................................................. 3
2.3 SUBDRAINS ....................................................................................................................... 3
2.4 PIPE.................................................................................................................................... 4
2.5 OUTLETS AND RISERS .................................................................................................... 4
2.6 PERMEABLE MATERIAL ................................................................................................... 4
2.7 FILTER FABRIC.................................................................................................................. 5
2.8 GEOCOMPOSITE DRAINAGE........................................................................................... 5 PART II - GEOGRID SOIL REINFORCEMENT ..........................................7 PART III - GEOTEXTILE SOIL REINFORCEMENT ...................................9 PART IV - EROSION CONTROL MAT ..................................................... 11
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GENERAL INFORMATION
PREFACE
These supplemental recommendations are intended as a guide for earthwork and are in addition to any previous earthwork recommendations made by the Geotechnical Engineer. If there is a conflict between these supplemental recommendations and any previous recommendations, it should be immediately brought to the attention of ENGEO. Testing standards identified in this document shall be the most current revision (unless stated otherwise).
DEFINITIONS
BACKFILL Soil, rock or soil-rock material used to fill excavations and trenches.
DRAWINGS Documents approved for construction which describe the work.
THE GEOTECHNICAL
ENGINEER
The project geotechnical engineering consulting firm, its employees, or its designated representatives.
ENGINEERED FILL
Fill upon which the Geotechnical Engineer has made sufficient observations and tests to confirm that the fill has been placed and compacted in accordance with geotechnical engineering recommendations.
FILL Soil, rock, or soil-rock materials placed to raise the grades of the site or to backfill excavations.
IMPORTED MATERIAL Soil and/or rock material which is brought to the site from offsite areas.
ONSITE MATERIAL Soil and/or rock material which is obtained from the site.
OPTIMUM MOISTURE Water content, percentage by dry weight, corresponding to the maximum dry density as determined by ASTM D-1557.
RELATIVE COMPACTION
The ratio, expressed as a percentage, of the in-place dry density of the fill or backfill material as compacted in the field to the maximum dry density of the same material as determined by ASTM D-1557.
SELECT MATERIAL Onsite and/or imported material which is approved by the Geotechnical Engineer as a specific-purpose fill.
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PART I - EARTHWORK
1.0 GENERAL
1.1 WORK COVERED
Supplemental recommendations for performing earthwork and grading. Activities include:
✓ Site Preparation and Demolition
✓ Excavation
✓ Grading
✓ Backfill of Excavations and Trenches
✓ Engineered Fill Placement, Moisture Conditioning, and Compaction
1.2 CODES AND STANDARDS
The contractor should perform their work complying with applicable occupational safety and health standards, rules, regulations, and orders. The Occupational Safety and Health Standards (OSHA) Board is the only agency authorized in the State to adopt and enforce occupational safety and health standards (Labor Code § 142 et seq.). The owner, their representative and contractor are responsible for site safety; ENGEO representatives are not responsible for site safety.
Excavating, trenching, filling, backfilling, shoring and grading work should meet the minimum requirements of the applicable Building Code, and the standards and ordinances of state and local governing authorities.
1.3 TESTING AND OBSERVATION
Site preparation, cutting and shaping, excavating, filling, and backfilling should be carried out under the testing and observation of ENGEO. ENGEO shall be retained to perform appropriate field and laboratory tests to check compliance with the recommendations. Any fill or backfill that does not meet the supplemental recommendations shall be removed and/or reworked, until the supplemental recommendations are satisfied.
Tests for compaction shall be made in accordance with test procedures outlined in ASTM D-1557, as applicable, unless other testing methods are deemed appropriate by ENGEO. These and other tests shall be performed in accordance with accepted testing procedures, subject to the engineering discretion of ENGEO.
2.0 MATERIALS
2.1 STANDARD
Materials, tools, equipment, facilities, and services as required for performing the required excavating, trenching, filling and backfilling should be furnished by the Contractor.
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2.2 ENGINEERED FILL AND BACKFILL
Material to be used for engineered fill and backfill should be free from organic matter and other deleterious substances, and of such quality that it will compact thoroughly without excessive voids when watered and rolled.
Unless specified elsewhere by ENGEO, engineered fill and backfill shall be free of significant organics, or any other unsatisfactory material. In addition, engineered fill and backfill shall comply with the grading requirements shown in the following table:
TABLE 2.2-1: Engineered Fill and Backfill Requirements
US STANDARD SIEVE PERCENTAGE PASSING
3" 100
No. 4 35–100
No. 30 20–100
Earth materials to be used as engineered fill and backfill shall be cleared of debris, rubble and deleterious matter. Rocks and aggregate exceeding the maximum allowable size shall be removed from the site. Rocks of maximum dimension in excess of two-thirds of the lift thickness shall be removed from any fill material to the satisfaction of ENGEO.
ENGEO shall be immediately notified if potential hazardous materials or suspect soils exhibiting staining or odor are encountered. Work activities shall be discontinued within the area of potentially hazardous materials. ENGEO shall be notified at least 72 hours prior to the start of filling and backfilling operations. Materials to be used for filling and backfilling shall be submitted to ENGEO no less than 10 days prior to intended delivery to the site. Unless specified elsewhere by ENGEO, where conditions require the importation of low expansive fill material, the material shall be an inert, low to non-expansive soil, or soil-rock material, free of organic matter and meeting the following requirements:
TABLE 2.2-2: Imported Fill Material Requirements
GRADATION (ASTM D-421)
SIEVE SIZE PERCENT
PASSING
2-inch 100
#200 15 - 70
PLASTICITY (ASTM D-4318) Plasticity Index < 12
ORGANIC CONTENT (ASTM D-2974) Less than 3 percent
A sample of the proposed import material should be submitted to ENGEO no less than 10 days prior to intended delivery to the site.
2.3 SUBDRAINS
A subdrain system is an underground network of piping used to remove water from areas that collect or retain surface water or subsurface water. Subsurface water is collected by allowing
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water into the pipe through perforations. Subdrain systems may drain and discharge to an appropriate outlet such as storm drain, natural swales or drainage, etc.. Details for subdrain systems may vary depending on many items, including but not limited to site conditions, soil types, subdrain spacing, depth of the pipe and pervious medium, as well as pipe diameter.
2.4 PIPE
Subdrain pipe shall conform with these supplemental recommendations unless specified elsewhere by ENGEO. Perforated pipe for various depths shall be manufactured in accordance with the following requirements:
TABLE 2.4-1: Perforated Pipe Requirements
PIPE TYPE STANDARD TYPICAL SIZES
(INCHES)
PIPE STIFFNESS
(PSI)
PIPE STIFFNESS ABOVE 200 PSI (BELOW 50 FEET OF FINISHED GRADE) ABS SDR 15.3 4 to 6 450
PVC Schedule 80 ASTM D1785 3 to 10 530
PIPE STIFFNESS BETWEEN 100 PSI AND 150 PSI (BETWEEN 15 AND 50 FEET OF FINISHED GRADE) ABS SDR 23.5 ASTM D2751 4 to 6 150
PVC SDR 23.5 ASTM D3034 4 to 6 153
PVC Schedule 40 ASTM D1785 3 to 10 135
ABS Schedule 40/DWV ASTM D1527 & D2661 3 to 10
PIPE STIFFNESS BETWEEN 45 PSI AND 50 PSI* (BETWEEN 0 TO 15 FEET OF FINISHED GRADE) PVC A-2000 ASTM F949 4 to 10 50
PVC SDR 35 ASTM D3034 4 to 8 46
ABS SDR 35 ASTM D2751 4 to 8 45
Corrugated PE AASHTO M294 Type S 4 to 10 45
*Pipe with a stiffness less than 45 psi should not be used.
Other pipes not listed in the table above shall be submitted for review by the Geotechnical Engineer not less 72 hours before proposed use.
2.5 OUTLETS AND RISERS
Subdrain outlets and risers must be fabricated from the same material as the subdrain pipe.
Outlet and riser pipe and fittings must not be perforated. Covers must be fitted and bolted into the riser pipe or elbow. Covers must seat uniformly and not be subject to rocking.
2.6 PERMEABLE MATERIAL
Permeable material shall generally conform to Caltrans Standard Specification unless specified otherwise by ENGEO. Class 2 permeable material shall comply with the gradation requirements shown in the following table.
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TABLE 2.6-1: Class 2 Permeable Material Grading Requirements
SIEVE SIZES PERCENTAGE PASSING
1" 100
3/4" 90 to 100
3/8" 40 to 100
No. 4 25 to 40
No. 8 18 to 33
No. 30 5 to 15
No. 50 0 to 7
No. 200 0 to 3
2.7 FILTER FABRIC
Filter fabric shall meet the following Minimum Average Roll Values unless specified elsewhere by ENGEO.
Grab Strength (ASTM D-4632) .............................................. 180 lbs Mass per Unit Area (ASTM D-4751) .....................................6 oz/yd2 Apparent Opening Size (ASTM D-4751) ........70-100 U.S. Std. Sieve Flow Rate (ASTM D-4491)............................................ 80 gal/min/ft2 Puncture Strength (ASTM D-4833) .......................................... 80 lbs Areas to receive filter fabric must comply with the compaction and elevation tolerance specified for the material involved. Handle and place filter fabric under the manufacturer's instructions.
Align and place filter fabric without wrinkles.
Overlap adjacent roll ends of filter fabric in accordance with manufacturer’s recommendations.
The preceding roll must overlap the following roll in the direction that the permeable material is being spread. Completely replace torn or punctured sections damaged during placement or repair by placing a piece of filter fabric that is large enough to cover the damaged area and comply with the overlap specified. Cover filter fabric with the thickness of overlying material shown within 72 hours of placing the fabric.
2.8 GEOCOMPOSITE DRAINAGE
Geocomposite drainage is a prefabricated material that includes filter fabric and plastic pipe.
Filter fabric must be Class A. The drain shall be of composite construction consisting of a supporting structure or drainage core material surrounded by a geotextile. The geotextile shall encapsulate the drainage core and prevent random soil intrusion into the drainage structure.
The drainage core material shall consist of a three-dimensional polymeric material with a structure that permits flow along the core laterally. The core structure shall also be constructed to permit flow regardless of the water inlet surface. The drainage core shall provide support to the geotextile.
A geotextile flap shall be provided along drainage core edges. This flap shall be of sufficient width for sealing the geotextile to the adjacent drainage structure edge to prevent soil intrusion into the structure during and after installation. The geotextile shall cover the full length of the
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core. The geocomposite core shall be furnished with an approved method of constructing and connecting with outlet pipes. If the fabric on the geocomposite drain is torn or punctured, replace the damaged section completely. The specific drainage composite material and supplier shall be preapproved by ENGEO.
The Contractor shall submit a manufacturer's certification that the geocomposite meets the design properties and respective index criteria measured in full accordance with applicable test methods. The manufacturer's certification shall include a submittal package of documented test results that confirm the design values. In case of dispute over validity of design values, the Contractor will supply design property test data from a laboratory approved by ENGEO, to support the certified values submitted.
Geocomposite material suppliers shall provide a qualified and experienced representative onsite to assist the Contractor and ENGEO at the start of construction with directions on the use of drainage composite. If there is more than one application on a project, this criterion will apply to construction of the initial application only. The representative shall also be available on an asneeded basis, as requested by ENGEO, during construction of the remaining applications. The soil surface against which the geocomposite is to be placed shall be free of debris and inordinate irregularities that will prevent intimate contact between the soil surface and the drain.
Edge seams shall be formed by utilizing the flap of the geotextile extending from the geocomposite's edge and lapping over the top of the fabric of the adjacent course. The fabric flap shall be securely fastened to the adjacent fabric by means of plastic tape or non-water-soluble construction adhesive, as recommended by the supplier. To prevent soil intrusion, exposed edges of the geocomposite drainage core edge must be covered.
Approved backfill shall be placed immediately over the geocomposite drain. Backfill operations should be performed to not damage the geotextile surface of the drain. Also during operations, avoid excessive settlement of the backfill material. The geocomposite drain, once installed, shall not be exposed for more than 7 days prior to backfilling.
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PART II - GEOGRID SOIL REINFORCEMENT
Geogrid soil reinforcement (geogrid) shall be submitted to ENGEO and should be approved before use. The geogrid shall be a regular network of integrally connected polymer tensile elements with aperture geometry sufficient to permit significant mechanical interlock with the surrounding soil or rock. The geogrid structure shall be dimensionally stable and able to retain its geometry under construction stresses and shall have high resistance to damage during construction to ultraviolet degradation and to chemical and biological degradation encountered in the soil being reinforced. The geogrids shall have an Allowable Tensile Strength (Ta) and Pullout Resistance, for the soil type(s) as specified on design plans.
The contractor shall submit a manufacturer's certification that the geogrids supplied meet plans and project specifications. The contractor shall check the geogrid upon delivery to ensure that the proper material has been received. During periods of shipment and storage, the geogrid shall be protected from temperatures greater than 140°F, mud, dirt, dust, and debris.
Manufacturer's recommendations in regard to protection from direct sunlight must also be followed. At the time of installation, the geogrid will be rejected if it has defects, tears, punctures, flaws, deterioration, or damage incurred during manufacture, transportation, or storage. If approved by ENGEO, torn or punctured sections may be repaired by placing a patch over the damaged area. Any geogrid damaged during storage or installation shall be replaced by the Contractor at no additional cost to the owner.
Geogrid material suppliers shall provide a qualified and experienced representative onsite at the initiation of the project, for a minimum of three days, to assist the Contractor and ENGEO personnel at the start of construction. If there is more than one slope on a project, this criterion will apply to construction of the initial slope only. The representative shall also be available on an as-needed basis, as requested by ENGEO, during construction of the remaining slope(s).
Geogrid reinforcement may be joined with mechanical connections or overlaps as recommended and approved by the manufacturer. Joints shall not be placed within 6 feet of the slope face, within 4 feet below top of slope, nor horizontally or vertically adjacent to another joint.
The geogrid reinforcement shall be installed in accordance with the manufacturer's recommendations. The geogrid reinforcement shall be placed within the layers of the compacted soil as shown on the plans or as directed. The geogrid reinforcement shall be placed in continuous longitudinal strips in the direction of main reinforcement. However, if the Contractor is unable to complete a required length with a single continuous length of geogrid, a joint may be made with the manufacturer's approval. Only one joint per length of geogrid shall be allowed. This joint shall be made for the full width of the strip by using a similar material with similar strength.
Joints in geogrid reinforcement shall be pulled and held taut during fill placement.
Adjacent strips, in the case of 100 percent coverage in plan view, need not be overlapped. The minimum horizontal coverage is 50 percent, with horizontal spacing between reinforcement no greater than 40 inches. Horizontal coverage of less than 100 percent shall not be allowed unless specifically detailed in the construction drawings. Adjacent rolls of geogrid reinforcement shall be overlapped or mechanically connected where exposed in a wrap around face system, as applicable.
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The Contractor may place only that amount of geogrid reinforcement required for immediately pending work to prevent undue damage. After a layer of geogrid reinforcement has been placed, the next succeeding layer of soil shall be placed and compacted as appropriate. After the specified soil layer has been placed, the next geogrid reinforcement layer shall be installed.
The process shall be repeated for each subsequent layer of geogrid reinforcement and soil.
Geogrid reinforcement shall be placed to lay flat and pulled tight prior to backfilling. After a layer of geogrid reinforcement has been placed, suitable means, such as pins or small piles of soil, shall be used to hold the geogrid reinforcement in position until the subsequent soil layer can be placed.
Under no circumstances shall a track-type vehicle be allowed on the geogrid reinforcement before at least 6 inches of soil have been placed. Turning of tracked vehicles should be kept to a minimum to prevent tracks from displacing the fill and the geogrid reinforcement. If approved by the Manufacturer, rubber-tired equipment may pass over the geosynthetic reinforcement at slow speeds, less than 10 mph. Sudden braking and sharp turning shall be avoided. During construction, the surface of the fill should be kept approximately horizontal. Geogrid reinforcement shall be placed directly on the compacted horizontal fill surface. Geogrid reinforcements are to be placed as shown on plans, and oriented correctly.
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PART III - GEOTEXTILE SOIL REINFORCEMENT
The specific geotextile material and supplier shall be preapproved by ENGEO. The contractor shall submit a manufacturer's certification that the geotextiles supplied meet the respective index criteria set when geotextile was approved by ENGEO, measured in full accordance with specified test methods and standards.
The contractor shall check the geotextile upon delivery to ensure that the proper material has been received. During periods of shipment and storage, the geotextile shall be protected from temperatures greater than 140°F, mud, dirt, dust, and debris. Manufacturer's recommendations in regard to protection from direct sunlight must also be followed. At the time of installation, the geotextile will be rejected if it has defects, tears, punctures, flaws, deterioration, or damage incurred during manufacture, transportation, or storage. If approved by ENGEO, torn or punctured sections may be repaired by placing a patch over the damaged area. Any geotextile damaged during storage or installation shall be replaced by the Contractor at no additional cost to the owner.
Geotextile material suppliers shall provide a qualified and experienced representative onsite at the initiation of the project to assist the Contractor and ENGEO personnel at the start of construction. The geotextile reinforcement shall be installed in accordance with the manufacturer's recommendations. The geotextile reinforcement shall be placed within the layers of the compacted soil as shown on the plans or as directed, secured with staples, pins, or small piles of backfill, placed without wrinkles, and aligned with the primary strength direction perpendicular to slope contours. Cover geotextile reinforcement with backfill within the same work shift. Place at least 6 inches of backfill on the geotextile reinforcement before operating or driving equipment or vehicles over it, except those used under the conditions specified below for spreading backfill.
Adjacent strips, in the case of 100 percent coverage in plan view, need not be overlapped. The minimum horizontal coverage is 50 percent, with horizontal spacing between reinforcement no greater than 40 inches. Horizontal coverage of less than 100 percent shall not be allowed unless specifically detailed in the construction drawings. Adjacent rolls of geotextile reinforcement shall be overlapped or mechanically connected where exposed in a wraparound face system, as applicable.
The contractor may place only that amount of geotextile reinforcement required for immediately pending work to prevent undue damage. After a layer of geotextile reinforcement has been placed, the succeeding layer of soil shall be placed and compacted as appropriate. After the specified soil layer has been placed, the next geotextile reinforcement layer shall be installed.
The process shall be repeated for each subsequent layer of geotextile reinforcement and soil.
Geotextile reinforcement shall be placed to lay flat and be pulled tight prior to backfilling. After a layer of geotextile reinforcement has been placed, suitable means, such as pins or small piles of soil, shall be used to hold the geotextile reinforcement in position until the subsequent soil layer can be placed. Under no circumstances shall a track-type vehicle be allowed on the geotextile reinforcement before at least six inches of soil has been placed. Turning of tracked vehicles should be kept to a minimum to prevent tracks from displacing the fill and the geotextile reinforcement. If approved by the Manufacturer, rubber-tired equipment may pass over the
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geotextile reinforcement as slow speeds, less than 10 mph. Sudden braking and sharp turning shall be avoided.
During construction, the surface of the fill should be kept approximately horizontal. Geotextile reinforcement shall be placed directly on the compacted horizontal fill surface. Geotextile reinforcements are to be placed within three inches of the design elevations and extend the length as shown on the elevation view unless otherwise directed by ENGEO.
Replace or repair any geotextile reinforcement damaged during construction. Grade and compact backfill to ensure the reinforcement remains taut. Geotextile soil reinforcement must be tested to the required design values using the following ASTM test methods.
TABLE III-1: Geotextile Soil Reinforcements
PROPERTY TEST
Elongation at break, percent ASTM D 4632
Grab breaking load, lb, 1-inch grip (min) in each direction ASTM D 4632 Wide width tensile strength at 5 percent strain, lb/ft (min) ASTM D 4595 Wide width tensile strength at ultimate strength, lb/ft (min) ASTM D 4595 Tear strength, lb (min) ASTM D 4533
Puncture strength, lb (min) ASTM D 6241
Permittivity, sec-1(min) ASTM D 4491
Apparent opening size, inches (max) ASTM D 4751
Ultraviolet resistance, percent (min) retained grab break load, 500 hours ASTM D 4355
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PART IV - EROSION CONTROL MAT
Work shall consist of furnishing and placing a synthetic erosion control mat and/or degradable erosion control blanket for slope face protection and lining of runoff channels. The specific erosion control material and supplier shall be pre-approved by ENGEO.
The Contractor shall submit a manufacturer's certification that the erosion mat/blanket supplied meets the criteria specified when the material was approved by ENGEO. The manufacturer's certification shall include a submittal package of documented test results that confirm the property values. Jute mesh shall consist of processed natural jute yarns woven into a matrix, and netting shall consist of coconut fiber woven into a matrix. Erosion control blankets shall be made of processed natural fibers that are mechanically, structurally, or chemically bound together to form a continuous matrix that is surrounded by two natural nets.
The Contractor shall check the erosion control material upon delivery to ensure that the proper material has been received. During periods of shipment and storage, the erosion mat shall be protected from temperatures greater than 140°F, mud, dirt, and debris. Manufacturer's recommendations in regard to protection from direct sunlight must also be followed. At the time of installation, the erosion mat/blanket shall be rejected if it has defects, tears, punctures, flaws, deterioration, or damage incurred during manufacture, transportation, or storage. If approved by ENGEO, torn or punctured sections may be removed by cutting out a section of the mat. The remaining ends should be overlapped and secured with ground anchors. Any erosion mat/blanket damaged during storage or installation shall be replaced by the Contractor at no additional cost to the Owner.
Erosion control material suppliers shall provide a qualified and experienced representative onsite, to assist the Contractor and ENGEO personnel at the start of construction. If there is more than one slope on a project, this criterion will apply to construction of the initial slope only.
The representative shall be available on an as-needed basis, as requested by ENGEO, during construction of the remaining slope(s). The erosion control material shall be placed and anchored on a smooth graded, firm surface approved by the Engineer. Anchoring terminal ends of the erosion control material shall be accomplished through use of key trenches. The material in the trenches shall be anchored to the soil on maximum 1½ foot centers. Topsoil, if required by construction drawings, placed over final grade prior to installation of the erosion control material shall be limited to a depth not exceeding 3 inches.
Erosion control material shall be anchored, overlapped, and otherwise constructed to ensure performance until vegetation is well established. Anchors shall be as designated on the construction drawings, with a minimum of 12-inch length, and shall be spaced as designated on the construction drawings, with a maximum spacing of 4 feet.
9.g
May 12, 2025 Packet Pg. 617
0+00
0+86
© 2024 Microsoft Corporation © 2024 TomTom
VICINITY MAP
NO SCALE
NO SCALE
SITE PLAN AND KEY MAP
G-3
G-5
G-4
G-2
G-1 COVER SHEET, SITE PLAN, & ABBREVIATIONS
CONSTRUCTION NOTES
CULVERT PLAN AND PROFILE
SECTIONS
SECTIONS AND DETAILS
DETAILS
EROSION AND SEDIMENT CONTROL PLAN
STORMWATER CONSTRUCTION MANAGEMENT PRACTICES (BMP'S)
NUMBER
SHEET TITLE
SHEET INDEX
ABBREVIATIONS
SHELDON AVENUE CUVLERT REPLACEMENT PLAN
SAN CARLOS, CALIFORNIA
CITY PROJECT NO. C2403
Call 811Before You Dig.
COVER SHEET
SHELDON AVENUE CULVERT REPLACEMENT PLAN
CITY PROJECT NO. C2403
SAN CARLOS, CALIFORNIA 13387.000.033
SPC
SPC
JDB
APRIL, 2025
AS SHOWN
G-1
8 SUITE 250
2010 CROW CANYON PLACE
(925) 866-9000
SAN RAMON, CALIFORNIA 94583
FAX (888) 279-2698
SAN RAMON - SAN JOSE - SAN FRANCISCO - OAKLAND - ROCKLIN - LATHROP Expect Excellence
SANTA CLARITA - IRVINE - NEW ZEALAND
G-6
3. CIVIL AND GEOTECHNICAL ENGINEER
2. SURVEYOR
1. OWNER/DEVELOPER
ENGEO INCORPORATED
2350 MISSION COLLEGE BOULEVARD, SUITE 800
SANTA CLARA, CA 95054
PHONE:(408) 574-4900
MARTIN M. RON ASSOCIATES, INC.
859 HARRISON STREET, SUITE 200
PHONE: (650) 296-7047
CITY OF SAN CARLOS, PUBLIC WORKS DEPARTMENT
600 ELM STREET,
SAN CARLOS, CA 94070
G-7
EXISTING 22" PIPE TO BE REMOVED
NEW 24" DIA. RCP WITH FLARED END SECTION
LIMIT OF TEMPORARY GRADING
L
L
ABAND
AC
AHD
ASSY
BK
BTWN
CATV
CI
C
COND
ABANDON
AHEAD
ASSEMBLY
BACK
BETWEEN
CABLE TV
CAST IRON PIPE
CENTER LINE
CONDUIT
EL
ELEC
F
HP
IE
LT
ELEVATION
ELECTRIC
FLANGE
HIGH PRESSURE
INVERT ELEVATION
LEFT
POLYVINYL CHLORIDE
PROPOSED
REINFORCED CONCRETE PIPE
RIGHT
SURVEY LINE
TELEPHONE
TYPICAL
VITRIFIED CLAY PIPE
WATER METER
PVC
PROP
RCP
RT
S
SWR
TEL
TYP
VCP
WM
HDPE
SEWER
EX
E/O
EXISTING
EAST OF
SO
S/O
STUB OUT
SOUTH OF
WTR
W/O
WATER
WEST OF
CONT
CMP
MJ
MTD
N/O
MECHANICAL JOINT
MULTIPLE TELEPHONE DUCT
NORTH OF
GV GATE VALVE
FH
FS
FIRE HYDRANT
FIRE SERVICE
ASBESTOS CEMENT PIPE
HIGH-DENSITY POLYETHYLENE
BFV BUTTERFLY VALVE
OVHD OVER HEAD
LUP LINEAR UNDERGROUND PROJECT
CONC CONCRETE
CIDH
SD STORM DRAIN
SDMH SD MAINTENANCE HOLE
CO CLEANOUT
G-8
SLOPE REPAIR
NEW HEADWALL
ROCK OUTLET PROTECTION
SHELDON AVENUE
SITE
0 11/11/2024 SUBMITTAL 1 FOR CITY REVIEW SPC
CIP CAST-IN-PLACE
CONTINUED
CORRUGATED METAL PIPE
CAST-IN-DRILLED-HOLE
DIA DIAMETER
EARTHWORK SUMMARY
CUT (CY) FILL (CY)
AREA OF
GRADING (SF) NET (CY)
TEMPORARY GRADING FOR
CULVERT REPLACEMENT
GRADING FOR SLOPE REPAIR
CLASS II ROCK
1 - 3 2 (FILL)
85 85 BALANCED
210
600
115 9
1 4
TON ROCK 30 - 4
9 4
PLANS PREPARED BY
DATE: 04/14/23
SEAN CLEARY, P.E.
CIVIL ENGINEER
APPROVED FOR CONSTRUCTION
DATE:
GRACE LE, P.E.
CITY ENGINEER
CONSTRUCTION NOTES:
1. ALL WORK IS TO BE DONE UNDER THE OVERSIGHT OF THE ENGINEER.
2. THE ENGINEER ASSUMES NO RESPONSIBILITY BEYOND THE ADEQUACY OF THE DESIGN HEREIN.
3. IN ACCORDANCE WITH GENERALLY ACCEPTED CONSTRUCTION PRACTICES, THE CONTRACTOR SHALL BE SOLELY AND COMPLETELY
RESPONSIBLE FOR THE CONDITIONS OF THE JOB SITE INCLUDING SAFETY OF ALL PERSONS AND PROPERTY DURING PERFORMANCE OF THE WORK. THIS REQUIREMENT WILL APPLY CONTINUOUSLY AND NOT BE LIMITED TO NORMAL WORK HOURS. THE CONTRACTOR SHALL
BE RESPONSIBLE FOR DESIGN AND CONSTRUCTION OF PROPER SHORING OF EXCAVATIONS IN ACCORDANCE WITH THE LATEST OCCUPATIONAL SAFETY LAWS. THE DUTIES OF THE ENGINEER DO NOT INCLUDE REVIEW OF THE ADEQUACY OF THE CONTRACTOR'S SAFETY IN, ON, OR NEAR THE CONSTRUCTION SITE. THE CONTRACTOR FURTHER AGREES TO DEFEND, INDEMNIFY, AND HOLD THE CIVIL
ENGINEER HARMLESS FROM ANY AND ALL LIABILITY, REAL OR ALLEGED, IN CONNECTION WITH THE PERFORMANCE OF THE WORK ON THIS PROJECT, EXCEPT FOR LIABILITY ARISING FROM THE SOLE NEGLIGENCE OF THE ENGINEER.
4. CONTRACTOR SHALL BE HELD RESPONSIBLE FOR ANY AND ALL DAMAGE TO EXISTING STRUCTURES AND/OR UTILITIES DURING CONSTRUCTION. PROPER REPAIR SHALL BE DONE TO THE SATISFACTION OF THE ENGINEER AND THE RESPECTIVE UTILITY COMPANY.
5. IT SHALL BE THE CONTRACTOR'S RESPONSIBILITY TO FIELD VERIFY LOCATIONS, ELEVATIONS, ETC. OF EXISTING FACILITIES AND TO IMMEDIATELY NOTIFY THE ENGINEER OF ANY FIELD CONFLICTS OR OMISSIONS. IT IS THE CONTRACTOR'S RESPONSIBILITY TO VERIFY THE EXACT LOCATION OF ALL UNDERGROUND UTILITIES IN THE FIELD AND CALL "UNDERGROUND SERVICE ALERT" AT 800-227-2600 AT LEAST 48 HOURS BEFORE EXCAVATION OR DEMOLITION FOR IMPROVEMENTS. ANY ADDITIONAL COSTS INCURRED AS A RESULT OF THE
CONTRACTOR'S FAILURE TO VERIFY LOCATIONS OF EXISTING UTILITIES PRIOR TO BEGINNING OF CONSTRUCTION SHALL BE BORNE BY THE CONTRACTOR.
6. DUST CONTROL DURING ALL PHASES OF CONSTRUCTION IS THE RESPONSIBILITY OF THE CONTRACTOR.
7. ANY DAMAGE TO THE EXISTING FACILITIES SHALL BE REPAIRED OR REPLACED AT CONTRACTOR'S EXPENSE.
8. GRADING ACTIVITIES SHOWN ON THESE PLANS WILL BE PROPERLY IN PLACE PRIOR TO THE RAINY SEASON (OCTOBER 31). ALL GRADED
SLOPES AND SWALE FLOW LINES SHALL BE BROADCAST SEEDED AND COVERED WITH EROSION CONTROL FABRIC (ECF) BEFORE PROJECT COMPLETION.
9. NO DEBRIS, RUBBISH, CREOSOTE-TREATED WOOD, SOIL, SILT, SAND, CEMENT, CONCRETE, OR WASHINGS THEREOF, OR OTHER
CONSTRUCTION RELATED MATERIALS OR WASTES, OIL OR PETROLEUM PRODUCTS OR OTHER ORGANIC OR EARTHEN MATERIAL SHALL NOT BE ALLOWED TO ENTER INTO, OR BE PLACED WHERE IT MAY BE WASHED BY RAINFALL OR RUNOFF INTO WATERS OF THE US.
10. NO EQUIPMENT SHALL BE OPERATED IN AREAS OF FLOWING OR STANDING WATER; FUELING, CLEANING, OR MAINTENANCE OF VEHICLES OR EQUIPMENT SHALL BE PERFORMED OUTSIDE OF AREAS OF FLOWING OR STANDING WATER.
11. THE CONTRACTOR SHALL MONITOR AND MAINTAIN RECORDS OF THE NATIONAL WEATHER SERVICE 72-HOUR FORECAST ON A DAILY BASIS. ALL CONSTRUCTION ACTIVITIES SHALL CEASE AND ALL REASONABLE EROSION CONTROL MEASURES SHALL BE IMPLEMENTED PRIOR TO THE ONSET OF PRECIPITATION.
12. SLOPES OF ALL EMBANKMENT FILL/CUT SHALL BE 2:1 MAX, (HORIZONTAL: VERTICAL) UNLESS OTHERWISE NOTED ON PLANS OR AS DIRECTED BY THE ENGINEER.
13. FOR EMBANKMENT CONSTRUCTION WHERE APPLICABLE; EROSION CONTROL SHALL BE PERFORMED ON ALL DISTURBED AREAS.
14. ALL ELEVATIONS SHOWN ARE FINISHED ELEVATIONS UNLESS STATED OTHERWISE.
15. THE CONTRACTOR SHALL PROVIDE INGRESS AND EGRESS FOR ANY PRIVATE PROPERTY ADJACENT TO THE WORK THROUGHOUT THE PERIOD OF CONSTRUCTION.
16. PROTECTIVE FENCING AND/OR BARRIERS WILL BE PLACED AROUND VEGETATION AND TREES NOT INVOLVED IN GRADING AND EARTHWORK OPERATIONS.
17. THE TOLERANCE SHALL BE 0.1 FEET FOR GRADING, COMPACTION OF FILL AND BACKFILL SHALL BE MINIMUM 90% OF THE MAXIMUM DRY DENSITY (ASTM D-1557). CONTRACTOR SHALL UTILIZE METHODS THAT AVOID OVER COMPACTION OF SOILS.
18. ALL APPLICABLE WORK SHALL BE DONE IN ACCORDANCE WITH CITY OF SAN CARLOS DESIGN GUIDELINES, GENERAL PROVISIONS, AND STANDARD SPECIFICATIONS AND DETAILS; UNLESS OTHERWISE SPECIFIED IN THESE PLANS.
19. THE CONTRACTOR IS RESPONSIBLE FOR VISITING THE SITE PRIOR TO BIDDING TO UNDERSTAND EXISTING PROJECT ACCESS ROUTES, WIDTH LIMITATIONS, AND SITE CONDITIONS.
NOTES
SHELDON AVENUE CULVERT REPLACEMENT PLAN
CITY PROJECT NO. C2403
SAN CARLOS, CALIFORNIA 13387.000.033
SPC
SPC
JDB
APRIL, 2025
AS SHOWN
G-2
8 SUITE 250
2010 CROW CANYON PLACE
(925) 866-9000
SAN RAMON, CALIFORNIA 94583
FAX (888) 279-2698
SAN RAMON - SAN JOSE - SAN FRANCISCO - OAKLAND - ROCKLIN - LATHROP Expect Excellence
SANTA CLARITA - IRVINE - NEW ZEALAND
GENERAL NOTES
1. BASIS OF DESIGN:
A. 2022 CALIFORNIA BUILDING CODE.
B. ASCE 7-16.
C. ENGEO, 2023 STORM DRAINAGE ASSESSMENT AND MITIGATION RECOMMENDATIONS, SHELDON AVENUE, SAN CARLOS, CALIFORNIA, AUGUST 1, 2023 PROJECT NO. 133387.000.028.
D. ENGEO, 2024 GEOTECHNICAL RECOMMENDATIONS FOR STORMWATER CONVEYANCE SYSTEM REPAIR, SHELDON AVENUE, SAN CARLOS, CALIFORNIA, NOVEMBER 8, 2024 PROJECT NO. 13387.000.033.
2. SPECIAL INSPECTION IS REQUIRED, AS INDICATED BY STATEMENT OF SPECIAL INSPECTIONS.
DESIGN PARAMETERS
1. DESIGN LOADINGS:
A. ACTIVE EARTH PRESSURE: 65 PCF, 2:1 SLOPING BACKSLOPE (STATIC, UNRESTRAINED, AND DRAINED).
2. DESIGN CAPACITIES:
A. PASSIVE EARTH PRESSURE: 250 PCF (NATIVE SOIL MATERIALS); 500 PCF (BEDROCK MATERIALS) NEGLECT 3 FEET FOR 2:1 SLOPING FOREGROUND CONDITIONS.
EARTHWORK
1. EXCAVATION AND SHORING SHALL BE PERFORMED IN ACCORDANCE WITH OSHA, STATE, AND LOCAL JURISDICTIONAL REQUIREMENTS.
2. EARTHWORK SHALL BE IN CONFORMANCE WITH THE PROJECT GEOTECHNICAL RECOMMENDATIONS REPORT.
3. BACKFILLING BEHIND WALL SHALL BE PERFORMED USING LIGHT, HAND-OPERATED COMPACTION EQUIPMENT.
CONCRETE
1. CONCRETE SHALL CONFORM TO ACI 318-14.
2. CONCRETE SHALL HAVE A MINIMUM 28-DAY COMPRESSIVE STRENGTH OF 4,000 PSI.
3. CEMENT SHALL CONFORM TO ASTM C150, TYPE II OR V.
4. AGGREGATES SHALL BE NATURAL SANDS AND ROCK AGGREGATES THAT CONFORM TO ASTM C33.
5. MAXIMUM WATER-CEMENT RATIO OF 0.5.
6. PRIOR TO CONCRETE PLACEMENT, FOOTING EXCAVATIONS SHALL BE CLEAN OF DEBRIS AND STANDING WATER.
7. ROUGHEN AND CLEAN CONCRETE SURFACES ON WHICH WALLS ARE TO BE CONSTRUCTED, EXPOSING THE AGGREGATE.
8. ALL CONCRETE SHALL BE MECHANICALLY CONSOLIDATED.
REINFORCING STEEL
1. REINFORCING STEEL SHALL BE ASTM A615, GRADE 60 DEFORMED BARS. NO. 3 BARS MAY BE GRADE 40.
2. REINFORCING STEEL SHALL BE DETAILED, FABRICATED, PLACED AND LAPPED PER ACI DETAILING MANUAL 315.
3. PROVIDE 3" CLEARANCE FOR CONCRETE AGAINST EARTH, 2" FOR CONCRETE EXPOSED TO AIR OR FORMS, AND 1 1/2" FOR ALL INTERIOR EXPOSURE.
DRILLED PIERS
1. THE PIER DRILLING SHALL BE PERFORMED UNDER CONTINUOUS OBSERVATION BY AN ENGEO REPRESENTATIVE PRIOR TO REINFORCING STEEL PLACEMENT. REFER TO STATEMENT OF SPECIAL INSPECTIONS.
2. SPECIAL INSPECTION IS REQUIRED PERIODICALLY FOR REINFORCING STEEL PLACEMENT AND CONTINUOUSLY FOR CONCRETE PLACEMENT. PIERS SHALL BE DRILLED TO SPECIFIED DEPTH AS SHOWN ON PLANS. REFER TO STATEMENT OF SPECIAL INSPECTIONS.
3. GRANULAR SOILS, AND BEDROCK MAY BE ENCOUNTERED DURING PIER DRILLING. THE DRILLING RIG SHOULD BE CAPABLE OF ADVANCING TO PLANNED PIER DEPTHS THROUGH SUCH SOIL TYPES.
4. TEMPORARY CASING MAY BE REQUIRED DURING CONSTRUCTION OF DRILLED PIERS.
5. GROUNDWATER MAY BE ENCOUNTERED. IF ENCOUNTERED, GROUNDWATER SHOULD BE PUMPED OUT FROM PIER HOLES PRIOR TO CONCRETE PLACEMENT. CONCRETE SHOULD BE PLACED USING THE TREMIE METHOD.
6. THE CONTRACTOR SHALL VERIFY ALL DIMENSIONS.
7. EXISTING UTILITIES AND OTHER INFORMATION ARE NOT SHOWN ON THESE PLANS. ADDITIONAL UTILITIES MAY BE PRESENT OR IN OTHER LOCATIONS. THE CONTRACTOR SHALL CONFIRM AND/OR DETERMINE THE LOCATION OF ALL UTILITIES AND DRILLING CLEARANCE PRIOR TO PROCEEDING WITH DRILLING OPERATIONS.
8. STOP DRILLING AND CONSULT THE ENGINEER IF UTILITY LINES, PIPING, FOUNDATIONS OR INDICATIONS OF OBSTRUCTIONS ARE ENCOUNTERED DURING DRILLING OF THE PIERS.
9. IF THE ACTUAL FIELD CONDITIONS VARY FROM THE ANTICIPATED CONDITIONS, NOTIFY THE GEOTECHNICAL ENGINEER.
STATEMENT OF SPECIAL INSPECTIONS
REQUIRED VERIFICATION AND INSPECTION OF SOILS
REQUIRED VERIFICATION AND INSPECTION TASK CONTINUOUS PERIODIC
1. VERIFY MATERIALS BELOW FOOTINGS ARE ADEQUATE
TO ACHIEVE DESIGN BEARING CAPACITY - X
2. VERIFY EXCAVATIONS ARE EXTENDED TO PROPER DEPTH AND
HAVE REACHED PROPER MATERIAL
- X
3. PERFORM CLASSIFICATION AND TESTING OF CONTROLLED FILL
MATERIALS - X
4. VERIFY USE OF PROPER MATERIALS, DENSITIES, AND LIFT THICKNESSES DURING PLACEMENT AND COMPACTION OF CONTROLLED FILL X - 5. PRIOR TO PLACEMENT OF FILL, OBSERVE SUBGRADE AND VERIFY THAT
SITE HAS BEEN PREPARED PROPERLY - X
6. PIER DRILLING X - REQUIRED VERIFICATION AND INSPECTION TASK CONTINUOUS PERIODIC
1. INSPECTION OF REINFORCING STEEL AND PLACEMENT
- X
2. VERIFY USE OF REQUIRED DESIGN MIX
- X
3. AT THE TIME FRESH CONCRETE IS SAMPLED TO FABRICATE SPECIMENS
FOR STRENGTH TESTS, PERFORM SLUMP TESTS, AND DETERMINE THE
TEMPERATURE OF THE CONCRETE
X - 4. INSPECTION OF CONCRETE PLACEMENT FOR PROPER APPLICATION TECHNIQUES X - 5. INSPECTION FOR MAINTENANCE OF SPECIFIED CURING TEMPERATURE
AND TECHNIQUES
- X
6. INSPECT FORMWORK FOR SHAPE, LOCATION, AND DIMENSIONS OF THE
CONCRETE MEMBER BEING FORMED
- X
INSPECTION OF THE MATERIALS, INSTALLATION, FABRICATION, ERECTION, OR PLACEMENT OF COMPONENTS AND CONNECTIONS TO CONFIRM COMPLIANCE WITH THE CONSTRUCTION DOCUMENTS AND THE 2022 CALIFORNIA BUILDING CODE IS REQUIRED. ITEMS REQUIRING SPECIAL INSPECTION SHALL BE AS FOLLOWS:
0 11/11/2024 SUBMITTAL 1 FOR CITY REVIEW SPC
0+00
0+86
285
290
295
300
305
310
315
320
325
285
290
295
300
305
310
315
320
325
0+50 1+00
SCALE: 1"=5', SCALE RATIO 1:1
PLAN AND PROFILE
SHELDON AVENUE CULVERT REPLACEMENT PLAN
CITY PROJECT NO. C2403
SAN CARLOS, CALIFORNIA 13387.000.033
SPC
SPC
JDB
APRIL, 2025
AS SHOWN
G-3
8 SUITE 250
2010 CROW CANYON PLACE
(925) 866-9000
SAN RAMON, CALIFORNIA 94583
FAX (888) 279-2698
SAN RAMON - SAN JOSE - SAN FRANCISCO - OAKLAND - ROCKLIN - LATHROP Expect Excellence
SANTA CLARITA - IRVINE - NEW ZEALAND
EXISTING 22" DIA. CMP
PIPE TO BE REMOVED
EXISTING 22" BROKEN SECTION OF
PIPE TO BE REMOVED
CLASS V-VII ROCK SLOPE PROTECTION
METHOD "B" PLACEMENT PER CALTRANS
STD. SPECIFICATIONS.
FLARED END SECTION; MATCH
EXISTING FLOWLINE EL=313.70
(N) 24" DIA. CLASS III RCP;
L=52 LF; S=0.17 FT/FT
CLASS II RIP RAP; INSTALLED
WITH CALTRANS METHOD "B"
CIP CONCRETE HEADWALL
FOR WALL DESIGN DETAILS
SEE SHEETS G-5 AND G-6
EXISTING DIRT ROAD
REPLACE SURFACE IN KIND
APPROXIMATE LIMITS OF TEMPORARY
EXCAVATION FOR CULVERT REPLACEMENT,
SIDE SLOPES 1:1 (H:V). 300 SF OF EXCAVATION.
24" DIA. CLASS III RCP W/ WATER TIGHT JOINTS ; L=52 LF; S=0.15 FT/FT 2:1 MAX
N
4'
TYPICAL HEADWALL SECTION PER
3 G-5
PIER AND GRADE BEAM DETAIL PER
1 G-5
CULVERT PROFILE
SCALE: 1"=5'
CULVERT REPLACEMENT PLAN
SEE ABOVE PIPE PROFILE
A
A
C'
C
B
B
TOP OF WALL 310.00
3 G-5
LIMITS OF GRADING
300
0 11/11/2024 SUBMITTAL 1 FOR CITY REVIEW SPC
UNDERLAY ROCK WITH MIRAFI
180N FILTER FABRIC OR EQUAL
CLASS 2 ROCK; 3' MIN.
THICKNESS
1'
1 4
- 1
2 TON ROCK ; 3.5'
MIN. THICKNESS
PIPE EXCAVATION AND BACKFILL FOR
CONCRETE PIPE CULVERTS PER CALTRANS
STD. PLATE A62D
CONSTRUCT FLARED END SECTION PER
5 G-6
2' MIN CVR.
GRADE SMOOTH TRANSITION FROM
DITCH TO FLARED END SECTION
ROAD SURFACE TO BE
REPLACED IN LIKE KIND
295
300
305
310
315
295
300
305
310
315
0+35
SECTIONS
SHELDON AVENUE CULVERT REPLACEMENT PLAN
CITY PROJECT NO. C2403
SAN CARLOS, CALIFORNIA 13387.000.033
SPC
SPC
JDB
APRIL, 2025
AS SHOWN
G-4
8 SUITE 250
2010 CROW CANYON PLACE
(925) 866-9000
SAN RAMON, CALIFORNIA 94583
FAX (888) 279-2698
SAN RAMON - SAN JOSE - SAN FRANCISCO - OAKLAND - ROCKLIN - LATHROP Expect Excellence
SANTA CLARITA - IRVINE - NEW ZEALAND
WALL PENETRATION PER
FINISHED GRADE AT
TOE OF WALL
TOP OF WALL 310.00'
NEW 24" RCP;
FL=306.00'
2 G-5
TYPICAL BOTTOM OF
WALL STEP DETAIL
3 G-6
EXISTING GROUND
3 1
2 1
4' MAX.
RETAINED
HEIGHT
TYPICAL WALL SECTION 'A - A'
NO SCALE
TYPICAL SECTION 'B - B'
NO SCALE
TYPICAL SECTION 'C - C'
NO SCALE
INSTALL NEW 24" RCP; FLOWLINE
PER PROFILE ON SHEET G-3
EXISTING 22" CMP TO BE REMOVED
TEMPORARY EXCAVATION
FOR CONSTRUCTION
1 1 MAX.
1 EXISTING GROUND
EXISTING GROUND
CLASS II RIP RAP
ENGINEERED FILL COMPACTED TO 90 PERCENT RELACTIVE COMPACTION AND AT LEAST 2% ABOVE OPTIMUM MOISTURE CONTENT. LIFT THICKNESS NOT TO EXCEED 8 INCHES OR DEPTH OF PENETRATION OF THE
COMPACTION EQUIPMENT USED, WHICHEVER IS LESS
MIRAFI 180N FILTER FABRIC OR EQUAL
TOP OF SCARP
WIDTH PER PLAN
1 MAX.
3 ±
1 1
2 ±
2' MIN.
0 11/11/2024 SUBMITTAL 1 FOR CITY REVIEW SPC
18" DIA. CIDH
PIER; 22' DEEP
24" DIA. CIDH
PIER; 20' DEEP
18" DIA. CIDH
PIER; 22' DEEP
6' ± SPACING
18" DIA. CIDH
PIER; 22' DEEP
6' ± SPACING 6' ± SPACING
GRADE BEAM
3' MIN.
NOTE: REFER TO WALL PENETRATION
DETAIL ON THIS SHEET FOR PIPE
PENETRATION AT THE HEADWALL.
1" CHAMFER
C - HORIZONTAL REINFORCING STEEL
E
H
RETAINED WALL HEIGHT
2" MINIMUM CLEARANCE
2 OR FLATTER
1 1' MINIMUM COMPACTED CLAYEY SOIL CAP
B - FRONT FACE REINFORCING
STEEL
EXTEND FULL HEIGHT AND
TERMINATE WITH STRAIGHT
EMBEDMENT TO BOTTOM OF
GRADE BEAM
1'
PIER
SEE PIER AND GRADE BEAM DETAIL
(THIS SHEET)
GRADE BEAM STEPPING DOWN, SEE
TYPICAL BOTTOM OF WALL PER
4" PERFORATED PIPE DRAIN
TO APPROVED OUTLET
2" MINIMUM CLEARANCE
DRAINAGE BLANKET MAY CONSIST OF CLASS 2
PERMEABLE MATERIAL MEETING THE GRADATION
REQUIREMENTS IN SECTION 13 OF THE TECHNICAL
PROVISIONS, OR WASHED CRUSHED ROCK (100% PASSING
3/4-INCH SEIVE AND LESS THAN 5% PASSING NO. 4 SIEVE)
ENVELOPED IN 6-OZ NON-WOVEN GEOTEXTILE, OR
DRAINAGE GEOCOMPOSITE MEETING THE SPECIFICATIONS
IN SECTION 14 OF THE TECHNICAL PROVISIONS
A - REAR FACE REINFORCING STEEL
EXTEND FULL HEIGHT AND
TERMINATE WITH STANDARD 90°
HOOK IN GRADE BEAM
2:1 OR FLATTER
PIER EMBEDMENT DETAIL
1'
SECTIONS AND DETAILS
SHELDON AVENUE CULVERT REPLACEMENT PLAN
CITY PROJECT NO. C2403
SAN CARLOS, CALIFORNIA 13387.000.033
SPC
SPC
JDB
APRIL, 2025
AS SHOWN
G-5
8 SUITE 250
2010 CROW CANYON PLACE
(925) 866-9000
SAN RAMON, CALIFORNIA 94583
FAX (888) 279-2698
SAN RAMON - SAN JOSE - SAN FRANCISCO - OAKLAND - ROCKLIN - LATHROP Expect Excellence
SANTA CLARITA - IRVINE - NEW ZEALAND
EXTEND INTO GRADE BEAM WITH STANDARD
HOOK
PI - EQUALLY SPACED NO
LAP SPLICES (TYP.)
CIDH CONCRETE PIER
Ps - PROVIDE 3 EXTRA TURNS AT TOP 6 INCHES
OF PIER AND 1 1/2 EXTRA TURNS AT BOTTOM
OF PIER (TYP.)
W
T
Gla, ADDITIONAL LONGITUDINAL REINFORCEMENT
Gs, GRADE BEAM SHEAR REINFORCEMENT
2'' CLEARANCE
4'' CLEARANCE
GI, LONGITUDINAL
REINFORCEMENT TOP
AND BOTTOM
(2) BUNDLED VERTICAL BARS
EACH SIDE OF WALL PENETRATION, EACH FACE;
BAR SIZE PER SCHEDULE
(2) BUNDLED HORIZONTAL BARS
ABOVE AND BELOW WALL PENETRATION,
EACH FACE EXTEND MINIMUM 4' ON EITHER
SIDE OF PENETRATION BAR SIZE PER
SCHEDULE
HORIZONTAL REINFORCEMENT
(REFER TO HEADWALL SECTION, THIS PAGE)
VERTICAL REINFORCEMENT
PER WALL SCHEDULE
(REFER TO HEADWALL
SECTION 3, THIS PAGE)
TOP OF GRADE BEAM
TOP OF WALL
WALL PENETRATION DETAIL
NO SCALE
PIER AND GRADE BEAM DETAIL 1
2 SECTION
RETAINED
WALL HEIGHT,
H
STEM THICKNESS, E
REAR FACE
REINFORCEMENT, (A)
BARS
FRONT FACE
REINFORCEMENT, (B)
BARS
HORIZONTAL REINFORCEMENT, (C)
BARS
GRADE
BEAM, T x W
LONGITUDINAL
REINFORCEMENT, Gl
ADDITIONAL
LONGITUDINAL
REINFORCEMENT, Gla
GRADE BEAM SHEAR
REINFORCEMENT, Gs
PIER
DIAMETER,
D
PIER DEPTH, P PIER SPACING, S PIER SHEAR
REINFORCEMENT, Ps
PIER LONGITUDINAL
REINFORCEMENT, Pl
3 0'-0" TO 3'-0" 0'-10' #5 @ 9" #4 @ 18" #5 @ 18" EACH FACE 24" x 24" 3 - #5 TOP AND BOTTOM 1 - #5 EACH FACE #3 @ 8" O.C. 18" 22'-0" 6'-0" #3 @ 6" PITCH 6 - #6 3 3'-0" TO 6'-0" 0'-10" #5 @ 9" #4 @ 18" #5 @ 18" EACH FACE 24" x 24" 3 - #5 TOP AND BOTTOM 1 - #5 EACH FACE #3 @ 8" O.C. 24" 20'-0" 6'-0" #3 @ 6" PITCH 8 - #7
WALL SCHEDULE
2:1 BACKFILL AND 2:1 SLOPING FOREGROUND; PIER FOUNDATION TYPICAL WALL SECTION 3
INSIDE DIAMETER OF
24 INCH STORM DRAIN PIPE
NO SCALE
NO SCALE
3 G-6
1 G-5
2 G-5
0 11/11/2024 SUBMITTAL 1 FOR CITY REVIEW SPC
3'' CLEARANCE
EMBED PIER 3" INTO
GRADE BEAM
DETAILS
SHELDON AVENUE CULVERT REPLACEMENT PLAN
CITY PROJECT NO. C2403
SAN CARLOS, CALIFORNIA 13387.000.033
SPC
SPC
JDB
APRIL, 2025
AS SHOWN
G-6
8 SUITE 250
2010 CROW CANYON PLACE
(925) 866-9000
SAN RAMON, CALIFORNIA 94583
FAX (888) 279-2698
SAN RAMON - SAN JOSE - SAN FRANCISCO - OAKLAND - ROCKLIN - LATHROP Expect Excellence
SANTA CLARITA - IRVINE - NEW ZEALAND
NOTE: INSTALL AT 20' ON-CENTER
CUT OR BUTT EVERY OTHER HORIZONTAL
WALL REINFORCEMENT AT CONTROL
JOINT
3/4" CHAMFER, TYPICAL
FRONT OF WALL
4 CIP CONCRETE WALL
CONCRETE PIER CAP, TYPICAL
ADDED BAR @ EACH
LONGITUDINAL BAR, MATCH
LONGITUDINAL BAR SIZE,
LEG LENGTH SHALL BE AS REQUIRED
TO PROVIDE LAP SPLICE, TYPICAL
3" CLR.
S/2 MAXIMUM L OF PIER CLOSEST
TO WALL STEP
C
CIDH CONC. PIER 2' MAXIMUM STEP
GRADE BEAM/PIER CAP
DEPTH 'T' TYPICAL
TYPICAL PIER CAP
REINFORCEMENT
2'-0"
d
NOTE:
D=6d FOR #3 TO #8 BAR
D=8d FOR #9 BAR
D
12d
MINIMUM HOOK
D
6d OR 3"
MINIMUM
d d
4d OR 2 1/2" MINIMUM
D
90 DEGREE HOOK 135 DEGREE HOOK
180 DEGREE HOOK TIES/STIRRUPS
WALL JOINT DETAIL
NO SCALE 1
2 6D or 3" MIN.
3 0 11/11/2024 SUBMITTAL 1 FOR CITY REVIEW SPC
TYPICAL BOTTOM OF WALL DETAIL
NO SCALE
TYPICAL REBAR HOOK DETAIL
NO SCALE
CONCRETE DEVELOPMENT LENGTHS
NO SCALE
SECTION A - A '
PLAN END VIEW
PIPE
DIA. A B C D E
24" 9 1
2 " 2 3
4 " 3'-7 4'-0" 1
2 "
SEE NOTE
D
E
1'-0"
3"
8" PIPE DIA.
B
B
B
B
CONSTRUCT PCC
CUTOFF WALL
A
A'
B
B
MINIMUM DIMENSIONS
A
TYPE
A
SLOPE
NOTES:
1. CONTRACTOR TO INSTALL TYPE A PRECAST CONCRETE FLARED END SECTION PER CALTRANS STD PLATE D94B, SEE TABLE ABOVE MINIMUM DIMENSIONS.
2. "C" DIMENSION VARIES BY MANUFACTURER AND WILL BE PAID FOR AS CONCRETE PIPE.
5 PRECAST CONCRETE FLARED END SECTION (TYPE A )
NO SCALE
C
LIMIT OF PAYMENT
FOR PIPE
0+00
0+86
EROSION AND SEDIMENT CONTROL PLAN
SHELDON AVENUE CULVERT REPLACEMENT PLAN
CITY PROJECT NO. C2403
SAN CARLOS, CALIFORNIA 13387.000.033
SPC
SPC
JDB
APRIL, 2025
AS SHOWN
G-7
8 SUITE 250
2010 CROW CANYON PLACE
(925) 866-9000
SAN RAMON, CALIFORNIA 94583
FAX (888) 279-2698
SAN RAMON - SAN JOSE - SAN FRANCISCO - OAKLAND - ROCKLIN - LATHROP Expect Excellence
SANTA CLARITA - IRVINE - NEW ZEALAND
2 ROLL LAP - PLAN VIEW
STAKE (TYPICAL)
MAX 4' SPACING
FILTERED WATER
WOOD STAKE
GRADE
FINISHED
RUNOFF WATER
WITH SEDIMENT
4" MAX
NOTES:
9" FIBER ROLL
FIBER ROLL DETAIL
1. PREPARE SLOPE BEFORE THE FIBER ROLL PROCEDURE IS STARTED.
2. FIBER ROLL INSTALLATION REQUIRES THE PLACEMENT AND SECURE STAKING OF THE ROLL IN A TRENCH, 3" TO 4" DEEP, ON CONTOUR OR AS SHOWN ON PLANS.
3. USE A STRAIGHT BAR TO DRIVE HOLES THROUGH THE FIBER ROLL AND INTO THE SOIL FOR WOODEN STAKES.
4. DRIVE THE STAKE THROUGH THE PREPARED HOLE INTO THE SOIL. LEAVE ONLY ONE OR TWO INCHES OF STAKE EXPOSED ABOVE FIBER ROLL.
5. INSTALL STAKES THREE FEET ON CENTER THROUGH THE LENGTH OF THE FIBER ROLL.
6. ADJACENT FIBER ROLLS SHALL TIGHTLY ABUT AND OVERLAP A MINIMUM OF 3 FEET.
7. RUNOFF MUST NOT BE ALLOWED TO RUN UNDER OR AROUND FIBER ROLL.
8. INSTALL AT LOCATIONS SHOWN ON PLANS. IN SLOPE AREAS SPACE FIBER ROLLS EVERY 10 VERTICAL FEET ON SLOPE.
NO SCALE
4'
2'
NO SCALE
TREE PROTECTIVE FENCING
LEGEND
VEGETATION PROTECTION FENCE PER DETAIL 2 THIS SHEET
FIBER ROLL PER DETAIL 1 THIS SHEET
1 NO SCALE
EROSION AND SEDIMENT CONTROL PLAN
0 11/11/2024 SUBMITTAL 1 FOR CITY REVIEW SPC
STEEL STAKE 6' O.C. MAX.
5' MIN.
SNOW FENCE
TREE TO REMAIN
HYDROSEED WITH EROSION CONTROL SEED MIX
STORMWATER MANAGEMENT BMP'S
SHELDON AVENUE CULVERT REPLACEMENT PLAN
CITY PROJECT NO. C2403
SAN CARLOS, CALIFORNIA 13387.000.033
SPC
SPC
JDB
APRIL, 2025
AS SHOWN
G-8 8
SUITE 250
2010 CROW CANYON PLACE
(925) 866-9000
SAN RAMON, CALIFORNIA 94583
FAX (888) 279-2698
SAN RAMON - SAN JOSE - SAN FRANCISCO - OAKLAND - ROCKLIN - LATHROP Expect Excellence
SANTA CLARITA - IRVINE - NEW ZEALAND 0 11/11/2024 SUBMITTAL 1 FOR CITY REVIEW SPC 310 320330 340 350 360 370 380 390 400410 420 430440 COVER SHEET AND SITE PLAN EATON PARK (BEHIND 3101 BRITTAN AVENUE)
LANDSLIDE REPAIR PROJECT
CITY PROJECT NO. C2403
SAN CARLOS, CALIFORNIA 13387.000.033 CWRF BR NOVEMBER, 2024 AS SHOWN G-1 4 SUITE 250 2010 CROW CANYON PLACE (925) 866-9000 SAN RAMON, CALIFORNIA 94583 FAX (888) 279-2698 SAN RAMON - SAN JOSE - SAN FRANCISCO - OAKLAND - ROCKLIN - LATHROP Expect Excellence SANTA CLARITA - IRVINE - NEW ZEALAND COVER SHEET AND SITE PLAN TYPICAL SECTION AND DETAILS EROSION AND SEDIMENT CONTROL PLAN STORMWATER CONSTRUCTION BEST MANAGEMENT PRACTICES (BMP'S) NUMBER SHEET TITLE SHEET INDEX SAN CARLOS, CALIFORNIA CITY PROJECT NO. C2403 G-1 G-2 G-3 G-4 SCALE: 1"=20' SITE PLAN NO SCALE VICINITY MAP SITE ABBREVIATIONS ABACCMP ED.G. DWG ELEPEXFCFLG INV MAX MHMIN P/L RR/WSSDSSSTA STD AGGREGATE BASE ASPHALT CONCRETE CENTER LINE CORRUGATED METAL PIPE ELECTRIC DECOMPOSED GRANITE DRAWING ELEVATION EDGE OF PAVEMENT EXISTING FACE OF CURB FLOW LINE GAS LINE INVERT GRADE ELEVATION MAXIMUM MANHOLE MINIMUM PACIFIC GAS & ELECTRIC CO. PROPERTY LINE RADIUS RIGHT-OF-WAY SLOPE STORM DRAIN SANITARY SEWER STATION STANDARD CL CONCRETE RCP REINFORCED CONCRETE PIPE DIA DIAMETER CLR CLEARANCE ON CENTER NOT TO SCALE OUTSIDE DIAMETER NTS OCOD CONC PGE HDPE HIGH DENSITY POLYETHYLENE PIPE R.C. RELATIVE COMPACTION APPROVED FOR CONSTRUCTIONDATE: GRACE LE, P.E. CITY ENGINEER PLANS PREPARED BY DATE: SEAN CLEARY, P.E. CIVIL ENGINEER N EXISTING TOPOGRAPHY MAJOR CONTOUR EXISTING TOPOGRAPHY MINOR CONTOUR EXPLANATION 100 ALL LOCATIONS APPROXIMATEDEBRIS CATCHMENT FENCE LIMITS OF CURRENT DEBRIS FLOW AREA SURVEYOR'S SPOT ELEVATION GENERAL NOTES: 1. ALL WORK IS TO BE DONE UNDER THE OVERSIGHT OF THE ENGINEER. 2. THE ENGINEER ASSUMES NO RESPONSIBILITY BEYOND THE ADEQUACY OF THE DESIGN HEREIN. 3. IN ACCORDANCE WITH GENERALLY ACCEPTED CONSTRUCTION PRACTICES, THE CONTRACTOR SHALL BE SOLELY AND COMPLETELY RESPONSIBLE FOR THE CONDITIONS OF THE JOB SITE INCLUDING SAFETY OF ALL PERSONS AND PROPERTY DURING PERFORMANCE OF THE WORK. THIS REQUIREMENT WILL APPLY CONTINUOUSLY AND NOT BE LIMITED TO NORMAL WORK HOURS. THE CONTRACTOR SHALL BE RESPONSIBLE FOR DESIGN AND CONSTRUCTION OF PROPER SHORING OF EXCAVATIONS IN ACCORDANCE WITH THE LATEST OCCUPATIONAL SAFETY LAWS. THE DUTIES OF THE ENGINEER DO NOT INCLUDE REVIEW OF THE ADEQUACY OF THE CONTRACTOR'S SAFETY IN, ON, OR NEAR THE CONSTRUCTION SITE. THE CONTRACTOR FURTHER AGREES TO DEFEND, INDEMNIFY, AND HOLD THE CIVIL ENGINEER HARMLESS FROM ANY AND ALL LIABILITY, REAL OR ALLEGED, IN CONNECTION WITH THE PERFORMANCE OF THE WORK ON THIS PROJECT, EXCEPT FOR LIABILITY ARISING FROM THE SOLE NEGLIGENCE OF THE ENGINEER. 4. CONTRACTOR SHALL BE HELD RESPONSIBLE FOR ANY AND ALL DAMAGE TO EXISTING STRUCTURES AND/OR UTILITIES DURING CONSTRUCTION. PROPER REPAIR SHALL BE DONE TO THE SATISFACTION OF THE ENGINEER AND THE RESPECTIVE UTILITY COMPANY. 5. IT SHALL BE THE CONTRACTOR'S RESPONSIBILITY TO FIELD VERIFY LOCATIONS, ELEVATIONS, ETC. OF EXISTING FACILITIES AND TO IMMEDIATELY NOTIFY THE ENGINEER OF ANY FIELD CONFLICTS OR OMISSIONS. IT IS THE CONTRACTOR'S RESPONSIBILITY TO VERIFY THE EXACT LOCATION OF ALL UNDERGROUND UTILITIES IN THE FIELD AND CALL "UNDERGROUND SERVICE ALERT" AT 800-227-2600 AT LEAST 48 HOURS BEFORE EXCAVATION OR DEMOLITION FOR IMPROVEMENTS. ANY ADDITIONAL COSTS INCURRED AS A RESULT OF THE CONTRACTOR'S FAILURE TO VERIFY LOCATIONS OF EXISTING UTILITIES PRIOR TO BEGINNING OF CONSTRUCTION SHALL BE BORNE BY THE CONTRACTOR. 6. DUST CONTROL DURING ALL PHASES OF CONSTRUCTION IS THE RESPONSIBILITY OF THE CONTRACTOR. 7. ANY DAMAGE TO THE EXISTING FACILITIES SHALL BE REPAIRED OR REPLACED AT CONTRACTOR'S EXPENSE. 8. GRADING ACTIVITIES SHOWN ON THESE PLANS WILL BE PROPERLY IN PLACE PRIOR TO THE RAINY SEASON (OCTOBER 31). ALL GRADED SLOPES AND SWALE FLOW LINES SHALL BE BROADCAST SEEDED AND COVERED WITH EROSION CONTROL FABRIC (ECF) BEFORE PROJECT COMPLETION. 9. NO DEBRIS, RUBBISH, CREOSOTE-TREATED WOOD, SOIL, SILT, SAND, CEMENT, CONCRETE, OR WASHINGS THEREOF, OR OTHER CONSTRUCTION RELATED MATERIALS OR WASTES, OIL OR PETROLEUM PRODUCTS OR OTHER ORGANIC OR EARTHEN MATERIAL SHALL NOT BE ALLOWED TO ENTER INTO, OR BE PLACED WHERE IT MAY BE WASHED BY RAINFALL OR RUNOFF INTO WATERS OF THE US. 10. NO EQUIPMENT SHALL BE OPERATED IN AREAS OF FLOWING OR STANDING WATER; FUELING, CLEANING, OR MAINTENANCE OF VEHICLES OR EQUIPMENT SHALL BE PERFORMED OUTSIDE OF AREAS OF FLOWING OR STANDING WATER. 11. THE CONTRACTOR SHALL MONITOR AND MAINTAIN RECORDS OF THE NATIONAL WEATHER SERVICE 72-HOUR FORECAST ON A DAILY BASIS. ALL CONSTRUCTION ACTIVITIES SHALL CEASE AND ALL REASONABLE EROSION CONTROL MEASURES SHALL BE IMPLEMENTED PRIOR TO THE ONSET OF PRECIPITATION. 12. SLOPES OF ALL EMBANKMENT FILL/CUT SHALL BE 2:1 MAX, (HORIZONTAL: VERTICAL) UNLESS OTHERWISE NOTED ON PLANS OR AS DIRECTED BY THE ENGINEER. 13. FOR EMBANKMENT CONSTRUCTION WHERE APPLICABLE; EROSION CONTROL SHALL BE PERFORMED ON ALL DISTURBED AREAS. 14. ALL ELEVATIONS SHOWN ARE FINISHED ELEVATIONS UNLESS STATED OTHERWISE. 15. THE CONTRACTOR SHALL PROVIDE INGRESS AND EGRESS FOR ANY PRIVATE PROPERTY ADJACENT TO THE WORK THROUGHOUT THE PERIOD OF CONSTRUCTION. 16. AREAS TO RECEIVE FILL SHALL BE CLEARED OF VEGETATION, ORGANICS, AND DELETERIOUS MATERIAL, SCARIFIED, MOISTURE CONDITIONED, AND RECOMPACTED TO PROVIDE ADEQUATE BONDING WITH THE INITIAL LIFT OF FILL. 17. COMPACTED FILL SHALL BE PLACED AT A MINIMUM 90 PERCENT RELATIVE COMPACTION, AT LEAST 3 PERCENTAGE POINTS ABOVE OPTIMUM MOISTURE CONTENT. RELATIVE COMPACTION REFERS TO IN-PLACE DRY DENSITY OF THE FILL MATERIAL AS DETERMINED BY ASTM D1557. OPTIMUM MOISTURE IS THE MOISTER CONTENT CORRESPONDING TO THE MAXIMUM DRY DENSITY. 18. GRADING SHALL INCLUDE LIMITED GROOMING OF THE LANDSLIDE SCARP AND REMOVAL OF LOOSE DEBRIS AS DIRECTED BY THE GEOTECHNICAL ENGINEER. 19. ALL APPLICABLE WORK SHALL BE DONE IN ACCORDANCE WITH CITY OF SAN CARLOS DESIGN GUIDELINES, GENERAL PROVISIONS, AND STANDARD SPECIFICATIONS AND DETAILS; UNLESS OTHERWISE SPECIFIED IN THESE PLANS. EATON PARK (BEHIND 3101 BRITTAN AVENUE) LANDSLIDE REPAIR PROJECT APPROXIMATE EATON TRAIL EXISTING CATCHMENT WALL EXISTING STORM DRAIN PIPE EXISTING RETAINING WALL April 18, 2025 310 320330 340 350 360 370 380 390 400410 420 430440 SUITE 250 2010 CROW CANYON PLACE (925) 866-9000 SAN RAMON, CALIFORNIA 94583 FAX (888) 279-2698 SAN RAMON - SAN JOSE - SAN FRANCISCO - OAKLAND - ROCKLIN - LATHROP Expect Excellence SANTA CLARITA - IRVINE - NEW ZEALAND SCALE: 1"=20' SITE IMPROVEMENTS NO SCALE NO SCALE GEOBRUGG T35 ROADSIDE ROCKFALL BARRIER DETAIL GEOBRUGG T35 ROADSIDE ROCKFALL BARRIER DETAIL (CONT.) ROUTINE MAINTENANCE SCHEDULE MAINTENANCE SHOULD BE EXPECTED TO OCCUR A MINIMUM OF ONCE PER YEAR IN NORMAL YEARS AND AS RECOMMENDED BASED ON OBSERVATIONS FROM SITE MONITORING REPORTS IN YEARS OF HEAVY RAINFALL. NO END DATE IS CONSIDERED. THE MAINTENANCE SHOULD BE SCHEDULED TO TAKE PLACE IN OCTOBER, PRIOR TO THE FIRST SIGNIFICANT RAINFALL AND AS NECESSARY DURING HEAVY RAINFALL YEARS. DEBRIS FENCES SHOULD BE REPAIRED IF DAMAGED. EXCESS DEBRIS SHOULD BE REMOVED FROM BENCHES AND FENCES. DETAILS AND SECTIONS EATON PARK (BEHIND 3101 BRITTAN AVENUE) LANDSLIDE REPAIR PROJECT CITY PROJECT NO. C2403 SAN CARLOS, CALIFORNIA 13387.000.033 CWRF BR NOVEMBER, 2024 AS SHOWN G-2 4 N REMOVE ACCUMULATION OF SOIL, DEBRIS, AND VEGETATION DOWN TO ORIGINAL GROUND SURFACE FROM BEHIND EXISTING CATCHMENT WALL TO RESTORE CATCHMENT CAPACITY. REMOVED MATERIAL TO BE SPREAD EVENLY AND PLACED AS ENGINEERED FILL ALONG EXISTING TRAIL (12-15 CUBIC YARDS) PATH OF DEBRIS FLOW INSTALL APPROXIMATELY 33' +/- OF 4' HEIGHT GEOBRUGG T35 ROADSIDE ROCKFALL BARRIER PER DETAIL ON THIS SHEET. 3 POSTS WILL BE NECESSARY LANDSLIDE DEBRIS TO BE SPREAD EVENLY AND PLACED AS ENGINEERED FILL ON EATON TRAILS OUTSIDE THE SWALE AREA. COMPACTION SPECIFICATIONS ON SHEET G-1 CLEAR DEBRIS AND VEGETATION FROM V-DITCH AND EXISTING CATCH BASIN INTAKE GRATE (2-3 CUBIC YARDS) REMOVE LANDSLIDE DEBRIS, BACKFILL RILLS, AND GROOM DISTURBED AREA (176-235 CUBIC YARDS OR 1,583 SQUARE FEET) EXISTING RETAINING WALL (TO REMAIN) EXISTING CATCHMENT WALL (TO REMAIN) EXISTING STORM DRAIN (TO REMAIN) 310 320330 340 350 360 370 380 390 400410 420 430440 SUITE 250 2010 CROW CANYON PLACE (925) 866-9000 SAN RAMON, CALIFORNIA 94583 FAX (888) 279-2698 SAN RAMON - SAN JOSE - SAN FRANCISCO - OAKLAND - ROCKLIN - LATHROP Expect Excellence SANTA CLARITA - IRVINE - NEW ZEALAND NO SCALE FIBER ROLL DETAIL FILTERED WATER GRADE FINISHED RUNOFF WATER WITH SEDIMENT NOTES: 9" COMPOST WEIGHTED FIBER ROLL 1. WEIGHTED FIBER ROLL SHALL BE MADE OF COMPOST OR OTHER WEIGHTED MATERIAL; OR IF STANDARD FIBER ROLL IS USED IT MUST BE ANCHORED IN PLACE WITH STAKES PER DETAIL ABOVE. 2. ADJACENT FIBER ROLLS SHALL TIGHTLY ABUT AND OVERLAP A MINIMUM OF 3 FEET. 3. RUNOFF MUST NOT BE ALLOWED TO RUN UNDER OR AROUND FIBER ROLL. 4. ROLLS SHALL BE PLACED AT 10' - 20' VERTICAL SPACING ALONG FACE OF SLOPE. FILTERED WATER GRADE FINISHED RUNOFF WATER WITH SEDIMENT 9" FIBER ROLL 12" MIN. 4" ± 4" ± WOOD STAKE @ 4' ± SPACING WEIGHTED FIBER ROLL STANDARD FIBER ROLL EROSION AND SEDIMENT CONTROL EATON PARK (BEHIND 3101 BRITTAN AVENUE) LANDSLIDE REPAIR PROJECT CITY PROJECT NO. C2403 SAN CARLOS, CALIFORNIA 13387.000.033 --- RF--- NOVEMBER, 2024 AS SHOWN G-3 4 SCALE: 1"=20' EROSION AND SEDIMENT CONTROL PLAN N EXPLANATION EROSION CONTROL FABRIC AND NATIVE GRASS FIBER ROLL INSTALL FIBER ROLL AT 10' SPACING INSTALL CURLEX ONE EROSION CONTROL FABRIC OR EQUIVALENT HYDROSEED WITH NATIVE GRASS G-4
4 13387.000.025
2023 13387.000.033
TP-6 TP-1 TP-5 TP-4 A A' TP-2 TP-3 LANDSLIDE REPAIR PLAN CHILTON PARK CITY PROJECT NO. C2403 SAN CARLOS, CALIFORNIA 13387.000.033 KJMLL JDB APRIL 2025 AS SHOWN G-1 4 SUITE 250 2010 CROW CANYON PLACE (925) 866-9000 SAN RAMON, CALIFORNIA 94583 FAX (888) 279-2698 SAN RAMON - SAN JOSE - SAN FRANCISCO - OAKLAND - ROCKLIN - LATHROP Expect Excellence SANTA CLARITA - IRVINE - NEW ZEALAND COVER SHEET AND LANDSLIDE REPAIR GRADING PLAN SECTION AND DETAILS EROSION AND SEDIMENT CONTROL PLAN STORMWATER CONSTRUCTION BEST MANAGEMENT PRACTICES (BMP'S) CHILTON PARK SHEET INDEX LANDSLIDE REPAIR PROJECT G-1 G-2 G-3 G-4 NO SCALE VICINITY MAP SITE CUT NET EARTHWORK SUMMARYFILL CORRECTIVE GRADING ABBREVIATIONS ABACCMP EDI DWG ELEPEXFCFLGB INV MAX MHMIN P/L RR/WSSDSSSTA STD AGGREGATE BASE ASPHALT CONCRETE CENTER LINE CORRUGATED METAL PIPE ELECTRIC DROP INLET DRAWING ELEVATION EDGE OF PAVEMENT EXISTING FACE OF CURB FLOW LINE GRADE BREAK INVERT GRADE ELEVATION MAXIMUM MANHOLE MINIMUM PACIFIC GAS & ELECTRIC CO. PROPERTY LINE RADIUS RIGHT-OF-WAY SLOPE STORM DRAIN SANITARY SEWER STATION STANDARD CL CONCRETE RCP REINFORCED CONCRETE PIPE DIA DIAMETER CLR CLEARANCE ON CENTER NOT TO SCALE OUTSIDE DIAMETER NTS OCOD CONC PGE HDPE HIGH DENSITY POLYETHYLENE PIPE R.C. RELATIVE COMPACTION APPROVED FOR CONSTRUCTIONDATE: GRACE LE, P.E. CITY ENGINEER PLANS PREPARED BY DATE: Kevin McFadden CIVIL ENGINEER EXPLANATION ALL LOCATIONS APPROXIMATE GENERAL NOTES: 1. ALL WORK IS TO BE DONE UNDER THE OVERSIGHT OF THE ENGINEER. 2. THE ENGINEER ASSUMES NO RESPONSIBILITY BEYOND THE ADEQUACY OF THE DESIGN HEREIN. 3. IN ACCORDANCE WITH GENERALLY ACCEPTED CONSTRUCTION PRACTICES, THE CONTRACTOR SHALL BE SOLELY AND COMPLETELY RESPONSIBLE FOR THE CONDITIONS OF THE JOB SITE INCLUDING SAFETY OF ALL PERSONS AND PROPERTY DURING PERFORMANCE OF THE WORK. THIS REQUIREMENT WILL APPLY CONTINUOUSLY AND NOT BE LIMITED TO NORMAL WORK HOURS. THE CONTRACTOR SHALL BE RESPONSIBLE FOR DESIGN AND CONSTRUCTION OF PROPER SHORING OF EXCAVATIONS IN ACCORDANCE WITH THE LATEST OCCUPATIONAL SAFETY LAWS. THE DUTIES OF THE ENGINEER DO NOT INCLUDE REVIEW OF THE ADEQUACY OF THE CONTRACTOR'S SAFETY IN, ON, OR NEAR THE CONSTRUCTION SITE. THE CONTRACTOR FURTHER AGREES TO DEFEND, INDEMNIFY, AND HOLD THE CIVIL ENGINEER HARMLESS FROM ANY AND ALL LIABILITY, REAL OR ALLEGED, IN CONNECTION WITH THE PERFORMANCE OF THE WORK ON THIS PROJECT, EXCEPT FOR LIABILITY ARISING FROM THE SOLE NEGLIGENCE OF THE ENGINEER. 4. CONTRACTOR SHALL BE HELD RESPONSIBLE FOR ANY AND ALL DAMAGE TO EXISTING STRUCTURES AND/OR UTILITIES DURING CONSTRUCTION. PROPER REPAIR SHALL BE DONE TO THE SATISFACTION OF THE ENGINEER AND THE RESPECTIVE UTILITY COMPANY. 5. IT SHALL BE THE CONTRACTOR'S RESPONSIBILITY TO FIELD VERIFY LOCATIONS, ELEVATIONS, ETC. OF EXISTING FACILITIES AND TO IMMEDIATELY NOTIFY THE ENGINEER OF ANY FIELD CONFLICTS OR OMISSIONS. IT IS THE CONTRACTOR'S RESPONSIBILITY TO VERIFY THE EXACT LOCATION OF ALL UNDERGROUND UTILITIES IN THE FIELD AND CALL "UNDERGROUND SERVICE ALERT" AT 800-227-2600 AT LEAST 48 HOURS BEFORE EXCAVATION OR DEMOLITION FOR IMPROVEMENTS. ANY ADDITIONAL COSTS INCURRED AS A RESULT OF THE CONTRACTOR'S FAILURE TO VERIFY LOCATIONS OF EXISTING UTILITIES PRIOR TO BEGINNING OF CONSTRUCTION SHALL BE BORNE BY THE CONTRACTOR. 6. DUST CONTROL DURING ALL PHASES OF CONSTRUCTION IS THE RESPONSIBILITY OF THE CONTRACTOR. 7. ANY DAMAGE TO THE EXISTING FACILITIES SHALL BE REPAIRED OR REPLACED AT CONTRACTOR'S EXPENSE. 8. GRADING ACTIVITIES SHOWN ON THESE PLANS WILL BE PROPERLY IN PLACE PRIOR TO THE RAINY SEASON (OCTOBER 31). ALL GRADED SLOPES AND SWALE FLOW LINES SHALL BE BROADCAST SEEDED AND COVERED WITH EROSION CONTROL FABRIC (ECF) BEFORE PROJECT COMPLETION. 9. NO DEBRIS, RUBBISH, CREOSOTE-TREATED WOOD, SOIL, SILT, SAND, CEMENT, CONCRETE, OR WASHINGS THEREOF, OR OTHER CONSTRUCTION RELATED MATERIALS OR WASTES, OIL OR PETROLEUM PRODUCTS OR OTHER ORGANIC OR EARTHEN MATERIAL SHALL NOT BE ALLOWED TO ENTER INTO, OR BE PLACED WHERE IT MAY BE WASHED BY RAINFALL OR RUNOFF INTO WATERS OF THE US. 10. NO EQUIPMENT SHALL BE OPERATED IN AREAS OF FLOWING OR STANDING WATER; FUELING, CLEANING, OR MAINTENANCE OF VEHICLES OR EQUIPMENT SHALL BE PERFORMED OUTSIDE OF AREAS OF FLOWING OR STANDING WATER. 11. THE CONTRACTOR SHALL MONITOR AND MAINTAIN RECORDS OF THE NATIONAL WEATHER SERVICE 72-HOUR FORECAST ON A DAILY BASIS. ALL CONSTRUCTION ACTIVITIES SHALL CEASE AND ALL REASONABLE EROSION CONTROL MEASURES SHALL BE IMPLEMENTED PRIOR TO THE ONSET OF PRECIPITATION. 12. SLOPES OF ALL EMBANKMENT FILL/CUT SHALL BE 2:1 MAX, (HORIZONTAL: VERTICAL) UNLESS OTHERWISE NOTED ON PLANS OR AS DIRECTED BY THE ENGINEER. 13. FOR EMBANKMENT CONSTRUCTION WHERE APPLICABLE; EROSION CONTROL SHALL BE PERFORMED ON ALL DISTURBED AREAS. 14. ALL ELEVATIONS SHOWN ARE FINISHED ELEVATIONS UNLESS STATED OTHERWISE. 15. THE CONTRACTOR SHALL PROVIDE INGRESS AND EGRESS FOR ANY PRIVATE PROPERTY ADJACENT TO THE WORK THROUGHOUT THE PERIOD OF CONSTRUCTION. 16. PROTECTIVE FENCING AND/OR BARRIERS WILL BE PLACED AROUND VEGETATION AND TREES NOT INVOLVED IN GRADING AND EARTHWORK OPERATIONS. 17. THE TOLERANCE SHALL BE 0.1 FEET FOR GRADING, COMPACTION OF FILL AND BACKFILL SHALL BE MINIMUM 90% OF THE MAXIMUM DRY DENSITY (ASTM D-1557). CONTRACTOR SHALL UTILIZE METHODS THAT AVOID OVER COMPACTION OF SOILS. 18. ALL APPLICABLE WORK SHALL BE DONE IN ACCORDANCE WITH CITY OF SAN CARLOS DESIGN GUIDELINES, GENERAL PROVISIONS, AND STANDARD SPECIFICATIONS AND DETAILS; UNLESS OTHERWISE SPECIFIED IN THESE PLANS. NUMBER SHEET TITLE 12/25/2024 SCALE: 1"=20' SITE PLAN N SAN CARLOS, CALIFORNIA CITY PROJECT NO. C2403 Qls TP-6 700 cu.yards 770 cu.yards KEYWAY SUBDRAIN OUTFALL TO CURB DRAIN SEE SHEET G-2 KEYWAY PER SHEET G-2 EXCAVATE CATCH BASIN AND SD WITHIN LIMITS OF CORRECTIVE GRADING. PERFORM VISUAL INSPECTION AND REPAIR AS NEEDED TEST PIT (ENGEO, 2024) CROSS SECTION ON SHEET G-2 CORRECTIVE GRADING SLOPE REBUILD LIMIT PROPOSED KEYWAY PROPOSED PERFORATED KEYWAY SUBDRAIN PROPOSED CLOSED PIPE SUBDRAIN EXCLUSION/VEGETATION PROTECTION FENCE LANDSLIDE LIMIT, FLOW DIRECTION SHOWN +70 cu. yards (import)
2. 1% FALL (MINIMUM) ON ALL TRENCHES AND DRAIN LINES 1. ALL PERFORATED PIPE PLACED PERFORATIONS DOWN NOTES: KEYWAY SUBDRAIN - OPTION 2 FIELD BY THE GEOTECHNICAL ENGINEER HEIGHT TO BE DETERMINED IN THE 18" MIN. 6" PERFORATED PIPE 2" FILTER MEDIUM* KEYWAY SUBDRAIN - OPTION 1 18" MIN. FILTER MEDIUM* 18" MIN. *FILTER MEDIUM 1" 3/4" 3/8" #4#8 #30 #50 #200 18-33 25-40 40-100 90-100 100 5-15 0-7 0-3 SIEVE SIZE % PASSING SIEVE ALTERNATIVE A CLASS 2 PERMEABLE MATERIAL ALTERNATIVE B CLEAN CRUSHED ROCK OR GRAVEL WRAPPED IN FILTER FABRIC ALL FILTER FABRIC SHALL MEET THE FOLLOWING MINIMUM AVERAGE ROLL VALUES UNLESS OTHERWISE SPECIFIED BY ENGEO: 180 lbs 6 oz/yd 70-100 U.S. STD. SIEVE 80 gal/min/ft PUNCTURE STRENGTH (ASTM D-4833) 80 lbs FLOW RATE (ASTM D-4491) APPARENT OPENING SIZE (ASTM D-4751) MASS PER UNIT AREA (ASTM D-4751) GRAB STRENGTH (ASTM D-4632) MATERIAL SHALL CONSIST OF CLEAN, COARSE SAND AND GRAVEL OR CRUSHED STONE, CONFORMING TO THE FOLLOWING GRADING REQUIREMENTS: 2 2% MIN. SLOPE BASE OF KEYWAY 6" PERFORATED PIPE PER SPECIFICATIONS. PLACED PERFORATIONS DOWN DRAINAGE COMPOSITE WITH 6OZ. DRAINAGE FABRIC ON BOTH SIDES, SUCH AS SKAPS TRANSNET TN220 OR EQUIVALENT MATERIAL PRE-APPROVED BY THE GEOTECHNICAL ENGINEER COMPACTED FILL 2% MIN. SLOPE BASE OF KEYWAY COMPACTED FILL 320 0 340 360 380 400 320 340 360 380 400 20 40 60 80 100 120 140 Elevation (NAVD88, feet)
Elevation (NAVD88, feet) Horizontal Distance (feet) Cross Section A A' A-A' Post-Slope Failure Ground Surface Qc Qls Bay View Road Limit of Landslide Temporary Jersey Barrier TP-1 KJfs TP-2 TP-3 TP-4 TP-6 Pre-Slope Failure Ground Surface Landslide Debris Pre- Road Cleanup 320 0 340 360 380 400 320 340 360 380 400 20 40 60 80 100 120 140 Elevation (NAVD88, feet)
Elevation (NAVD88, feet) Horizontal Distance (feet) Cross Section A A' A-A' Grade to Match Pre-Slope Failure Ground SurfaceSolid Pipe at 1% Slope to Subdrain at Back of Excavation Hydroseed and Mulch after Grading is Complete Geogrid Tensar BX1200 Full length of Corrective Grading Vertical spacing 3' Minimum 3' Bedrock Embedment Qc KJfs TP-1 TP-2 TP-3 TP-4 TP-6 Bay View Road See Subdrain Outfall Detail Qef Subdrain (Typical) SECTION AND DETAILS CHILTON PARK CITY PROJECT NO. C2403 SAN CARLOS, CALIFORNIA 13387.000.033 KJMLL JDB APRIL 2025 AS SHOWN G-2 4 SUITE 250 2010 CROW CANYON PLACE (925) 866-9000 SAN RAMON, CALIFORNIA 94583 FAX (888) 279-2698 SAN RAMON - SAN JOSE - SAN FRANCISCO - OAKLAND - ROCKLIN - LATHROP Expect Excellence SANTA CLARITA - IRVINE - NEW ZEALAND PLAN 2% SLOPE ENGINEERED FILL SUBDRAIN (TYPICAL) SEE DETAIL SLIDE SURFACE PROPOSED GRADE DEPTH TO BE DETERMINED IN THE FIELD BY THE GEOTECHNICAL ENGINEER. ESTIMATED DEPTH 5' SLIDE PLANE TOE KEYWAY BENCH INTO FIRM MATERIAL (TYPICAL) 8' MIN. NO SCALE KEYWAY SUBDRAIN DETAIL NO SCALE KEYWAY DETAIL NO SCALE SUBDRAIN OUTFALL DETAIL Disclaimer: Cross Section Is For Illustration Purposes Only. The Transition Between Materials May Be Abrupt Or Gradual. Variations Should Be Expected. Existing Ground Surface Proposed Ground Surface Recommended Corrective Grading ? Geologic Contact, dashed where approximate queried where inferred Legend NO SCALE CROSS SECTION A-A' (EXISTING SLOPE FAILURE) Engineered Fill Colluvium Landslide Debris Franciscan Complex sedimentary rocks (Jurrasic) Test Pit (ENGEO, 2024) TP-5 Qc Qls Kfs Qef NO SCALE CROSS SECTION A-A' (CORRECTIVE GRADING) 6" SOLID PIPE AT 1%TO SUBDRAIN CONCRETE CURB CORE 3" DIAMETER HOLE INTO EXISTING CURB CORE 3" DIAMETER HOLE INTO EXISTING CURB 6" SOLID PIPE AT 1%TO SUBDRAIN SECTION CONCRETE CURB REDUCE AND CONNECT PIPE TO CURB TP-6 TP-1 TP-5 TP-4 A A' TP-2 TP-3 EROSION AND SEDIMENT CONTROL CHILTON PARK CITY PROJECT NO. C2403 SAN CARLOS, CALIFORNIA 13387.000.033 KJMLL JDB APRIL 2025 AS SHOWN G-3 3 SUITE 250 2010 CROW CANYON PLACE (925) 866-9000 SAN RAMON, CALIFORNIA 94583 FAX (888) 279-2698 SAN RAMON - SAN JOSE - SAN FRANCISCO - OAKLAND - ROCKLIN - LATHROP Expect Excellence SANTA CLARITA - IRVINE - NEW ZEALAND N NO SCALE FIBER ROLL DETAIL NOTES: 1. WEIGHTED FIBER ROLL SHALL BE MADE OF COMPOST OR OTHER WEIGHTED MATERIAL; OR IF STANDARD FIBER ROLL IS USED IT MUST BE ANCHORED IN PLACE WITH STAKES PER DETAIL ABOVE. 2. ADJACENT FIBER ROLLS SHALL TIGHTLY ABUT AND OVERLAP A MINIMUM OF 3 FEET. 3. RUNOFF MUST NOT BE ALLOWED TO RUN UNDER OR AROUND FIBER ROLL. 4. ROLLS SHALL BE PLACED AT 10'-20' VERTICAL SPACING ALONG FACE OF SLOPE. 12" MIN. 4" ± 4" ±WEIGHTED FIBER ROLL STANDARD FIBER ROLL EROSION AND SEDIMENT CONTROL PLAN EXPLANATION HYDROSEED AREA WITH NATIVE GRASS FIBER ROLL CROSS SECTION ON SHEET G-2 TEST PIT (ENGEO, 2024) TP-6 TRACK WALK SLOPE PRIOR TO HYDROSEED APPLICATION 9" FIBER ROLL 9" FIBER ROLL WOOD STAKE, MAXIMUM 4' SPACING 2023 G-4
4 13387.000.033
CITY COUNCIL
STAFF REPORT
MEETING DATE: May 12, 2025
ITEM TITLE: Adopt a Resolution Approving the Parcel Map for the 782 Elm Street Development, Assessor’s Parcel Number 050-151-200.
RECOMMENDATION:
Staff recommend that the City Council adopt a Resolution approving the parcel map for the 782 Elm Street Development (“Development”), Assessor’s Parcel Number (APN) 050-151-200.
FISCAL IMPLICATIONS:
There is no fiscal implication associated with approving this parcel map.
BACKGROUND:
This item is brought before the City Council to approve the parcel map for the Development. The tentative parcel map for the Development was approved on November 18, 2024 by the Planning and Transportation Commission. The Council’s approval is required before the parcel map can be filed with the county recorder.
The Development is a new, four-story townhome condominium building with four units at 782 Elm Street. The Developer is required to improve the sidewalk frontage; provide sewer, storm and water service connections; underground the electrical and telecommunication services; install private landscaping; and complete other improvements to meet City standards.
The Developer, as subdivider, submitted a maintenance bond to guarantee the required subdivision improvements and paid the required fees. The parcel map has, therefore, been found to be in substantial conformance with the approved tentative parcel map and all conditions related to the parcel map have been met and/or guaranteed.
ANALYSIS:
Approval of a parcel map is a "ministerial act", pursuant to the California Subdivision Map Act (Government Code Section 66474.1), once the parcel map is found to be in substantial conformance with the approved tentative parcel map. This Development has met all City regulations and no further discretionary approvals are required.
ALTERNATIVES:
The alternatives available to the City Council include:
1. Adopt a Resolution approving the parcel map for the 782 Elm Street Development,
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May 12, 2025 Packet Pg. 634
Assessor’s Parcel Number (APN) 050-151-200; or
2. Do not adopt the Resolution; or
3. Provide staff with alternative direction.
Respectfully submitted by:
Steven Machida, Public Works Director
Approved for submission by:
_______________________
Jeff Maltbie, City Manager
ATTACHMENT(S):
1. Resolution
2. 782 Elm Street Parcel Map
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May 12, 2025 Packet Pg. 635
RESOLUTION NO. 2025 – ____
A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF SAN CARLOS APPROVING THE PARCEL MAP FOR THE 782 ELM STREET DEVELOPMENT, ASSESSOR’S PARCEL NUMBER (APN) 050-151-200.
WHEREAS, the tentative parcel map for the 782 Elm Street Development (“Development”) was approved on November 18, 2024 by the Planning and Transportation Commission. The Council’s approval is required before the parcel map can be filed with the county recorder; and WHEREAS, the Development is a new residential four-story townhome condominium with four units at 782 Elm Street. The developer is required to improve the sidewalk frontage; provide sewer, storm and water service connections; underground the electrical and telecommunication services; install private landscaping; and complete other improvements to meet City standards; and
WHEREAS, the developer, as subdivider, submitted a maintenance bond to guarantee the required subdivision improvements and paid the required fees. The parcel map has, therefore, been found to be in substantial conformance with the approved tentative parcel map and all conditions related to the parcel map have been met and/or guaranteed; and WHEREAS, approval of a parcel map is a "ministerial act", pursuant to the California Subdivision Map Act (Government Code Section 66474.1), once the parcel map is found to be in substantial conformance with the approved Tentative parcel map. This Development has met all City regulations and no further discretionary approvals are required.
NOW, THEREFORE BE IT RESOLVED, that the San Carlos City Council hereby approves the parcel map for the 782 Elm Street Development, Assessor’s Parcel Number (APN) 050-151-200.
* * * * *
I, City Clerk Crystal Mui, hereby certify that the foregoing Resolution was duly and regularly passed and adopted by the City Council of the City of San Carlos at a scheduled meeting thereof held on the 12th day of May 2025, by the following vote:
________________________________
CITY CLERK of the City of San Carlos
APPROVED:
___________________________
MAYOR of the City of San Carlos
AYES, COUNCILMEMBERS:
NOES, COUNCILMEMBERS:
ABSENT, COUNCILMEMBERS:
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SURVEYOR'S STATEMENT
OWNER'S STATEMENT
CITY SURVEYOR'S STATEMENT
CITY CLERK'S STATEMENT
COUNTY RECORDER'S STATEMENT
OWNER'S ACKNOWLEDGEMENT
CITY ENGINEER'S STATEMENT
TRUSTEE STATEMENT
TRUSTEE ACKNOWLEDGEMENT
SOILS REPORT STATEMENT
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PARCEL A
0'
1 INCH =
10' 20' 40'
20 FT
NOTES:
0'
1 INCH =
1' 2' 4'
2 FT
SURVEY REFERENCES:
BASIS OF BEARINGS:
VICINITY & BOUNDARY CONTROL MAP
SCALE: 1"=60'
BLOCK 27
AMENDED
MAP OF THE
TOWN OF SAN
CARLOS
SUBDIVISION
(8 MAPS 25-26) ESTABLISHED BY SPLIT OF IMPROVEMENTS AND MONUMENTS (8 M 25)(R1) NOTE 2 ELM STREET (60' R/W) (FORMERLY ROSEWOOD AVE.) 25' 25' 30' 30' CHESTNUT STREET (60' R/W)
CHERRY STREET
(50' R/W)
OLIVE STREET
(50' R/W) ESTABLISHED BY SPLIT OF IMPROVEMENTS AND MONUMENTS (8 M 25)(R1) NOTE 2 BLOCK 25 25' 25'
30' 30'
SITE
SEE SHEET 2
GRANADA
CONDOMINIUM
(81 MAPS 8)
0'
1 INCH =
30' 60' 120'
60 FT
ESTABLISHED BY SPLIT OF IMPROVEMENTS AND MONUMENTS
(8 M 25)(R1) NOTE 2 9.h
May 12, 2025 Packet Pg. 638
CITY COUNCIL
STAFF REPORT
MEETING DATE: May 12, 2025
ITEM TITLE: Adopt a Resolution Authorizing the City Manager to Sign an Amendment to the Agreement for Products and Services with CMCS/Central Valley Party to Increase the Not-to-Exceed Amount by $42,000 for Special Event Rentals; Authorizing the City Manager to Sign an Extension of the Agreement for Products and Services with CMCS/Central Valley Party to Renew the Agreement for Two Additional Years in the Amount of $107,950; and Authorizing a Contingency in a Not-to-Exceed Amount of $24,000 for a Total Contract Amount of $131,950.
RECOMMENDATION:
Staff recommend that the City Council adopt a Resolution authorizing:
- The City Manager to sign an amendment to the agreement for products and services with CMCS/Central Valley Party to increase the not-to-exceed amount by $42,000 for special event rentals;
- The City Manager to sign an extension of the agreement for products and services with CMCS/Central Valley Party to renew the agreement for two additional years in the amount of $107,950 and
- Authorizing a contingency in a not-to-exceed amount of $24,000 for a total contract amount of $131,950.
FISCAL IMPLICATIONS:
There is no fiscal impact or additional appropriation necessary for fiscal year (FY) 2024-25.
Special event rentals for the community events are budgeted as a part of the Community Events Field and Program Supplies and Professional Services budget. The included contingency allows for unforeseen additional rentals required for events in future years.
Event Year Contract Amount Contingency (~20%)
2025 $42,000 -
2026 $53,150 $11,500
2027 $54,800 $12,500
BACKGROUND:
The Parks and Recreation Department coordinates a variety of community events throughout the year, including summer concerts, movie nights, Block Party, Goblin Walk, and Night of Holiday
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Lights. In addition, the Department coordinates the weekend-long Art & Wine Faire and Hometown Days festivals each year.
Management efforts for larger scale special events include coordination with a vendor to provide rental tables, chairs, booths, stages, canopies, etc. Each event is unique and has different needs. The vendor provides staff who can drop off and pick up equipment after hours and on weekends, depending on the event timeline, location, and needs.
The City posted a request for proposals for event rental services and received four proposals. On February 27, 2023, the City Council adopted Resolution 2023-018 authorizing the City Manager to sign an agreement for products and services with CMCS/Central Valley Party for event rental services. Following the execution of the contract, staff have worked with the vendor on all community event rental needs.
ANALYSIS:
Staff request that the Council authorize the City Manager to sign an amendment to the agreement for products and services with CMCS/Central Valley Party. During the past two years, staff had additional needs and requests for event rentals. Specifically, additional rentals have been included for the family fun zone as well as additional shade canopies for the Art & Wine Faire in 2023 and 2024 and are planned for future years. Staff also secured inflatable jumping attractions to expand activities for the annual Family Campout. In addition to these annual event rental amendments, staff requested higher quality and additional rentals for the City’s centennial celebration at the Hometown Days event this year. These additions were not included in the proposal and therefore exceed the original cost.
The events planned through the end of the year will total $42,000. Additional scope of services will include additional shade structures, stage setup, seating, and event booths, as well as other rental needs.
Staff also recommend executing the agreement for products and services contract extension for an additional two years. The vendor has demonstrated dependability and provides high quality products and care in providing rentals for our community events.
ALTERNATIVES:
The alternatives available to the City Council include:
1. Adopt a Resolution authorizing the City Manager to sign an amendment to the agreement for products and services with CMCS/Central Valley Party to increase the not-to-exceed amount by $42,000 for special event rentals; authorizing the City Manager to sign an extension of the agreement for products and services with CMCS/Central Valley Party to renew the agreement for two additional years in the amount of $107,950; and authorizing the spending of a contingency in a not-to-exceed amount of $24,000 for a total contract amount of $131,950; or
2. Do not adopt a Resolution; or
3. Provide staff with alternative direction.
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Respectfully submitted by:
Amy Newby, Parks & Recreation Director
Approved for submission by:
_______________________
Jeff Maltbie, City Manager
ATTACHMENT(S):
1. Resolution
2. Central Valley Party Proposal
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May 12, 2025 Packet Pg. 641
RESOLUTION NO. 2025 – ____
A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF SAN CARLOS
AUTHORIZING THE CITY MANAGER TO SIGN AN AMENDMENT TO THE AGREEMENT
FOR PRODUCTS AND SERVICES WITH CMCS/CENTRAL VALLEY PARTY TO INCREASE THE NOT-TO-EXCEED AMOUNT BY $42,000 FOR SPECIAL EVENT RENTALS;
AUTHORIZING THE CITY MANAGER TO SIGN AN EXTENSION OF THE AGREEMENT FOR
PRODUCTS AND SERVICES WITH CMCS/CENTRAL VALLEY PARTY TO RENEW THE AGREEMENT FOR TWO ADDITIONAL YEARS IN THE AMOUNT OF $107,950; AND AUTHORIZING A CONTINGENCY IN A NOT-TO-EXCEED AMOUNT OF $24,000 FOR A TOTAL CONTRACT AMOUNT OF $131,950.
WHEREAS, the Parks and Recreation Department coordinates a variety of community events throughout the year, including summer concerts, movie nights, Block Party, Family Campout, Goblin Walk and Night of Holiday Lights, Hometown Days, and the Art & Wine Faire; and
WHEREAS, management efforts for large scale special events include coordination with a vendor to provide rental tables, chairs, booths, stages, shade canopies, game attractions, etc.; and
WHEREAS, on February 23, 2023, the City Council adopted a resolution authorizing the City Manager to sign an agreement for products and services with CMCS/Central Valley Party; and
WHEREAS, staff have been working with the selected vendor on special event rental needs for San Carlos community events since 2023; and
WHEREAS, staff have determined through planning processes that additional rentals are needed to produce a high-quality experience for event attendees which has resulted in additional costs for Family Campout, the Art & Wine Faire, as well as the City’s centennial celebration at Hometown Days planned for May 2025; and
WHEREAS, staff recommend amending the agreement with CMCS/Central Valley Party to cover the additional costs of special event rentals for the current contract year; and WHEREAS, staff recommend extending the agreement with CMCS/Central Valley Party to provide special event rentals for San Carlos community events for the next two years; and WHEREAS, staff believe CMCS/Central Valley Party is reliable, professional and flexible due to the company’s close proximity to San Carlos and has demonstrated interest in the success of our community events; and
NOW, THEREFORE BE IT RESOLVED, that the San Carlos City Council hereby authorizes:
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- the City Manager to sign an amendment to the agreement for products and services with CMCS/Central Valley Party to increase the not-to-exceed amount by $42,000 for special event rentals;
- the City Manager to sign an extension of the agreement for products and services with CMCS/Central Valley Party to renew the agreement for two additional years in the amount of $107,950; and
- the spending of a contingency in a not-to-exceed amount of $24,000 for a total contract amount of $131,950.
* * * * *
I, City Clerk Crystal Mui, hereby certify that the foregoing Resolution was duly and regularly passed and adopted by the City Council of the City of San Carlos at a scheduled meeting thereof held on the 12th day of May 2025, by the following vote:
________________________________
CITY CLERK of the City of San Carlos
APPROVED:
___________________________
MAYOR of the City of San Carlos
AYES, COUNCILMEMBERS:
NOES, COUNCILMEMBERS:
ABSENT, COUNCILMEMBERS:
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2/3/2023
Dear Recipient,
Thank you for the opportunity to bid on your upcoming events planned throughout this year. I feel that Central Valley Party would be a great fit for your upcoming events as our focus is helping out our communities. Central Valley Party is a family owned and operated company with 28 years’ experience doing events. We have 2 locations to serve the community with a detail-oriented mind set, along with a family atmosphere throughout our company. We provide services to our communities in not only memorable events as wedding, engagements, and special occasions. But we are also provided the satisfaction when we help with the School Graduations, Community concerts, Holiday celebrations, corporate team building and fun days as well as Festivals for cities and churches. I feel that Central Valley Party could help with your events at their current design as well as assist with implementations to new trends and growth as needed. We have worked on many different jobs such as corporate gatherings ranging from 100-10,000, Community Concerts, Church and School Festivals along with several city jobs of various size. We look forward to working with you on your future events.
Warm regards,
Your Name
General Manager
[email protected]
320 W. Larch Rd. Suite 16
Tracy, CA 95304
(209)832-8890
CentralValleyParty.com
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References
City of Tracy
333 Civic Center Plaza
Tracy, CA 95376
Contact Person: Lauren Repetto
209-831-6224
City of Moutain House
251 E. Main Street
Mountain House, CA 95391
Contact Person: Angel Lamb
209-831-5651
Saint Anthonys Church
323 North Fremont Ave.
Manteca, CA 95336
Contact Person: Craig Yeszin
209-321-9586
Saint Bernards Church
163 W. Eaton Ave.
Tracy, CA 95376
Contact: Marie White
209-598-7187
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Appendix B – Functionality Matrix
Response
Yes, No, Future,
Partial
A-1 6' Rectangle Table (10) M YES
A-2 8' Rectangle Table (6) M YES
A-3 30" Round cocktail highboys (6) M YES
A-4 4' Round Table (22) M YES
A-5 5' Round Table (16) M YES
A-6 Umbrellas, bases, stabilizers (22) M YES
A-7 Umbrella color preference is red D YES
A-8 Canopy, 10'x10' (8) M YES
A-9 Canopy, 10'x20' (3) M YES
A-10 Festival Booth, 10'x20' (1) M YES
A-11 Festival Booth Wood Counter (2) M YES
A-12 Side Walls Solid 8'x10' (7) M YES
A-13 1/2 Walls 3'x10' (14) M YES
A-14 Water Barrel (14) M YES
A-15 Folding chairs (450) M YES
A-16 Stage: 20'x24', covered D YES
A-17 Food Booth Screen Set (10) M YES
A-18 Delivery Friday of event weekend, complete by 2pm M YES A-17
Full equipment set-up, maps to be provided in advance and on day of delivery M YES
A-18 Pick up Sunday 6:30pm M YES
B-1 5' Round Table (8) M YES
B-2 9' Rectangle Farm Table (6) M YES
B-3 30" Wine Barrel cocktail highboys (6) D YES
B-4 Chairs (100) M YES
Chair preference is black resin with pad D YES
B-5 Umbrellas, bases, stabilizers (15) M YES
B-6 Umbrella color preference is natural D YES
Item # Description Mandatory, Desired,
Optional
Vendor Comment/Solution - Response Codes “F” and “P”
require a written response describing how and when the
specification will be met.
B. Block Party: 7/16/2023, 8/27/2023 (Future tentative dates: 7/21/2024, 8/25/2024, 7/20/2025, 8/24/2025, 7/19/2026, 8/23/2026, 7/18/2027, 8/22/2027) A. Hometown Days: 5/19-21/2023 (Future tentative dates: 5/17-19/2024, 5/16-18/2025, 5/15-17/2026, 5/21-23/2027) page 1 of 5
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Appendix B – Functionality Matrix
Response
Yes, No, Future,
Partial
Item # Description Mandatory, Desired,
Optional
Vendor Comment/Solution - Response Codes “F” and “P”
require a written response describing how and when the
specification will be met.
B-7 Adirondack Chairs (15) D FUTURE WILL PURCHASE IF AWARDED CONTRACT B-8 Adirondack side tables (15) D FUTURE WILL PURCHASE IF AWARDED CONTRACT B-9 Artificial Turf, Green (400 sq ft) D YES
page 2 of 5
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Appendix B – Functionality Matrix
Response
Yes, No, Future,
Partial
Item # Description Mandatory, Desired,
Optional
Vendor Comment/Solution - Response Codes “F” and “P”
require a written response describing how and when the
specification will be met.
B-10 Delivery day of event, complete by 2pm M YES
B-11
Full equipment set-up, maps to be provided in advance and on day of delivery M YES
B-12 Pick up day of event 8pm M YES
page 3 of 5
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Appendix B – Functionality Matrix
Response
Yes, No, Future,
Partial
Item # Description Mandatory, Desired,
Optional
Vendor Comment/Solution - Response Codes “F” and “P”
require a written response describing how and when the
specification will be met.
C-1 8' Rectangle Table (20) M YES
C-2 Folding chairs (220) M YES
C-3 Canopy, 10'x10' (1) M YES
C-4 Food Booth Screen Set (1) M YES
C-5 Water Barrel (4) M YES
C-6 Delivery day of event, complete by 2pm M YES
C-7 Full equipment set-up, maps to be provided in advance and on day of delivery M YES
C-8 Pick up day of event 8pm M YES
D-1 8' Rectangle Table (35) M YES
D-2 Folding chairs (600) M YES
D-3 30" Round cocktail highboys (25) M YES WOULD BE EITHER 30" OR 36" ROUND D-4 Stage: 20'x24', covered D YES
D-5 High Peak Festival Booth, 20'x20' M YES
D-6 Artificial Turf, Green (400 sq ft) D YES
D-7 Wood Counter Food Booth (3) M YES
D-8 Food Booth Screen Set (3) M YES
D-9 High Peak Festival Booth, 10'x10' (23) M YES
D-10 Festival Booth Wood Counter (3) M YES
D-11 Side Walls Solid 8'x10' (16) M YES
D-12 1/2 Walls 3'x10' (39) M YES
D-13 1/2" Banner Poles 10' (36) M YES
D-14 5 Gallon Tent Weight (92) M YES STEEL BASE WEIGHTS 50# EACH D-15 Water Barrel (4) M YES
D-16 5' Round Table (60) M YES
D-17 Umbrellas, bases, stabilizers (60) M YES
D-18 Delivery Friday of event weekend 9pm M YES
D. Art & Wine Faire: 10/7-8/2023 (Future tentative dates: 10/12-13/2024, 10/11-12/2025, 10/10-11/2026, 10/9-10/2027) C. Family Campout: 8/11-12/2023 (Future tentative dates: 8/9-10/2024, 8/8-9/2025, 8/14-15/2-26, 8/13-14/2027) page 4 of 5
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Appendix B – Functionality Matrix
Response
Yes, No, Future,
Partial
Item # Description Mandatory, Desired,
Optional
Vendor Comment/Solution - Response Codes “F” and “P”
require a written response describing how and when the
specification will be met.
D-19 Full equipment set-up, maps to be provided in advance and on day of delivery M YES
D-20 Pick up Sunday 6:30pm M YES
E-1 30" Wine Barrel cocktail highboys (6) D YES
E-1 Gas Fire Pits with Glass Covers (3) D FUTURE WILL PURCHASE IF AWARDED CONTRACT E-3 Adirondack Chairs (15) D FUTURE WILL PURCHASE IF AWARDED CONTRACT E-4 Adirondack side tables (15) D FUTURE WILL PURCHASE IF AWARDED CONTRACT E-5 Canopy, 10'x10' (3) M YES
E-6 Canopy, 10'x20' (2) M YES
E-7 Side Walls Solid 8'x10' (10) M YES
E-8 Food Booth Screen Set (1) M YES
E-9 Artificial Turf, White (300 sq ft) D YES
E-10 Delivery day of event, complete by 2pm M YES
E-11
Full equipment set-up, maps to be provided in advance and on day of delivery M YES
E-12 Pick up day of event 9pm M YES
E. Night of Holiday Lights: 12/1/2023 (Future tentative dates: 12/6/2024, 12/5/2025, 12/4/2026, 12/3/2027) page 5 of 5
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May 12, 2025 Packet Pg. 651
City of San Carlos, Parks and Recreation Department
600 Elm Street, San Carlos CA 94070 | (650) 802-4421
APPENDIX C
Cost Proposal Pricing Page
SPECIAL EVENT RENTALS
This Cost Proposal Pricing Page must itemize the cost to the City for all services to perform the Scope of Services outlined in Section III of the RFP and itemized in Appendix B. A narrative may be attached to clarify any pricing data submitted (e.g. hourly rates).
In addition to the Cost Proposal Pricing Page, please include an itemized list of all products and services available. 2023 2024 2025 2026 2027
A. HOMETOWN DAYS EVENT $ 12,125 @ 3% Increase @ 3% Increase from 2024
@ 3% Increase
from 2025
@ 3% Increase
from 2026
B. BLOCK PARTY (2 DATES) $ 9,547 @ 3% Increase @ 3% Increase from 2024
@ 3% Increase
from 2025
@ 3% Increase
from 2026
C. FAMILY CAMPOUT $ 1,827 @ 3% Increase @ 3% Increase
from 2024
@ 3% Increase
from 2025
@ 3% Increase
from 2026
D. ART & WINE FAIRE $ 18,779 @ 3% Increase @ 3% Increase from 2024
@ 3% Increase
from 2025
@ 3% Increase
from 2026
E. NIGHT OF HOLIDAY
LIGHTS $ 5,530 @ 3% Increase @ 3% Increase
from 2024
@ 3% Increase
from 2025
@ 3% Increase
from 2026
Total Annual Cost
$ 47,808 $50,000.00 $51,550.00 $53,150.00 $54,800.00
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May 12, 2025 Packet Pg. 652
Party Rental Guide
*prices subject to change without notice…Rev. 02/01/23
Glassware
**Riedel Crystal (Overture)**
Champagne Flute 9 oz. $1.60
White Wine 10 oz. $1.60
Red Wine 13 oz. $1.60
Magnum 19 oz. $1.60
www.centralvalleyparty.com [email protected] Water Goblet 11 oz. $1.60 "O" Stemless Cabernet/Merlot 21 oz. $1.60
Chairs Flatware **Classic Stemware**
**Chateau (Simple)** Champagne Flute 6 oz $0.70
White Samsonite, Folding $1.80 Dinner Fork $0.65 All Purpose 10 oz. $0.70 Black Samsonite, Folding $2.00 Dinner Knife $0.65 White Wine 6 oz. $0.70 White Resin, Folding $3.95 Salad/Dessert Fork $0.65 Balloon Red Wine 13 oz. $0.80 Black Resin, Folding $3.95 Teaspoon $0.65 Red Wine 8 oz. $0.70 Fruitwood, Folding w/Latte Pad $4.25 Soup Spoon $0.65 Iced Tea 16 oz. $0.80 Gold Chiavari* $6.50 Butter Knife $0.65 Water Goblet 11 oz. $0.70 Black Chiavari* $6.50 Charlotte Champagne, Gold Band 7.3 oz.$0.95 Chiavari Cushion, Black or Ivory $1.00 **Bellini (Classic)** Charlotte Wine, Gold Band 10 oz. $0.95 Beechwood Crossback* $9.25 Dinner Fork $0.70 Charlotte All Purpose, Gold Band 15 oz. $0.95 Crossback Cushion $2.00 Dinner Knife $0.70
Tolix Style Gunmetal Bistro $5.95 Salad/Dessert Fork $0.70 **Barware** Children's (Almond/Teal Blue) $2.50 Teaspoon $0.70 Footed Pilsner 16 oz. $0.80 Children's White Folding $1.60 Soup Spoon $0.70 Pilsner 12 oz. $0.70 *Cushion Extra Butter Knife $0.70 Beer Stein 12 oz. $0.80 Demitasse Spoon $0.70 Pub Glass 16 oz. $0.70
Tables Demitasse Fork $0.70 Large Martini 10 oz. $0.70
Margarita Connoisseur 12 oz. $0.80
30" Round High Boy Cocktail $12.00 **Parisian (Gold Trim)** Margarita 8 oz. $0.70 36" Round/Square High Boy Cocktail $12.00 Dinner Fork $0.70 Double Old Fashion 10 oz. $0.70 36" Round $9.00 Dinner Knife $0.70 Juice 5 oz. $0.70
48" Round $10.00 Salad/Dessert Fork $0.70 Irish Coffee Mug $0.70 60" Round $11.00 Teaspoon $0.70 Hi Ball 10 oz. $0.80
72" Round $15.00 Butter Knife $0.70 Punch Glasses $0.75 4'x4' Square $12.00 Mason Jars 16 oz. $0.80
4' Banquet $9.00 **Odessa Gold**
6' Banquet $10.00 Dinner Fork $0.90 *Glassware is rented in rack quantities 8' Banquet $11.00 Dinner Knife $0.90 only
6' Conference $10.75 Salad/Dessert Fork $0.90
8' Conference $11.75 Teaspoon $0.90 Linens
6' Children's $10.00 Tablespoon $0.90 Central Valley Party offers a Variety 5' Serpentine $11.75 of Linens in Numerous Colors,
Wine Barrel $25.00 Styles and Sizes to
9' Farm Table $95.00 Personalize any Event.
60" Round Farm Table $95.00 Prices start as low as $13.00.
Please Call or Visit our
Showroom for more Details.
Unlike most of our Local Competitiors, Central Valley Party does not charge Sales Tax on Rental Items.
See how much you can Save! Call or Email us Today!
320 W Larch Rd #16
Tracy, CA 95304
Phone: (209) 832-8890
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May 12, 2025 Packet Pg. 653
Central Valley Party Party Rental Guide
Party Rents & Event Rentals *prices subject to change without notice…Rev. 02/01/23 China China (Continued) Buffet/Serving Equipment
**Clear Glass** **White w/ Silver Trim** **Chafing Dishes** 9" Dinner Plate $0.70 10" Dinner Plate $0.75 4 Quart Stainless Round Chafer* $22.95 7" Salad Plate $0.70 8" Salad Plate $0.75 6 Quart Rolltop Round Chafer* $32.95 5" Bread & Butter Plate $0.70 5" Bread & Butter Plate $0.75 8 Quart Rectangular Chafer $30.00 Coffee Cup $0.70 Soup Bowl $0.75 8 Quart Rectangular Roll-Top Chafer $35.00 **White Bistro** Coffee Cup $0.75 2" Deep Half or Full Pan $5.00 10" Dinner Plate $0.75 Saucer $0.75 4" Half or Full Pan $5.00 7" Salad Plate $0.75 Demitasse Cup w/ Saucer $2.00 **Platters** 5" Bread & Butter Plate $0.75 Sugar Bowl $2.00 16" White Square Platter $7.95 Flat Soup Bowl $0.75 Creamer $2.00 16" White Coupe Bowl $7.95 Coffee Cup $0.75 **Sahara** 18" White Oval Platter $7.95 Saucer $0.75 10" Dinner Plate $0.85 15" or 16" Stainless Tray $7.95 **Black Octagon** 7" Salad Plate $0.85 Waiter Tray $5.00 10" Dinner Plate $0.75 6" Bread & Butter Plate $0.85 Waiter Stand $5.00 7" Salad Plate $0.75 Coffee Cup $0.85 **Tableware & Décor** Soup Bowl $0.75 Saucer $0.85 Plastic Pitcher $1.50
Coffee Cup $0.75 **Majestic** Stainless Pitcher $3.00
**Imperial Swirl (White)** 10" Dinner Plate $0.85 Table Stand/Number $2.50 10" Dinner Plate $0.75 7" Salad Plate $0.85 Glass Salt & Pepper Set (Filled) $2.50 8" Salad Plate $0.75 6" Bread & Butter Plate $0.85 Glass Champagne/Ice Bucket $7.95 5" Bread & Butter Plate $0.75 Coffee Cup $0.85 3 Tier Plate Stand $5.95 Soup Bowl $0.75 Saucer $0.85 Stainless 14" Round Tray $7.95 Coffee Cup $0.75 **Whittier** 8" Tall Square Glass Vase $3.95 Saucer $0.75 10" Dinner Plate $0.85 24" Trumpet Glass Vase $13.95 **Venice (Ivory)** 8" Triangle Dessert Plate $0.85 9" Cylinder Vase $6.95 10" Dinner Plate $0.75 7" Salad Plate $0.85 12" Cylinder Vase $7.95 8" Salad Plate $0.75 6" Bread & Butter Plate $0.85 16" Cylinder Vase $8.95 5" Bread & Butter Plate $0.75 Coffee Cup $0.85 Charger, Lacquer-Gold, Silver or Black $2.00 Soup Bowl $0.75 Saucer $0.85 Charger, Lacquer Beaded,Gold or Silver $2.00 Coffee Cup $0.75 Charger, Glass Beaded, Clear $4.00
Saucer $0.75 Beverage Service Charger, Gold Rim Hammered Glass $4.00 Sugar Bowl $2.00 Hammered Stainless Tub $15.00 Saturn Glass Charger, Silver or Gold $4.00 Creamer $2.00 Beverage Dispensers, 3Gal Infuser $15.00 Hurricane Candle Lamp $4.95 **Cream w/ Gold Trim** 100 Cup Coffee Maker $20.00 Crome Lantern (large) $15.00 10" Dinner Plate $0.75 Thermal Coffee Server $5.00 Crome Lantern (small) $11.00 8" Salad Plate $0.75 5 Gallon WATER Thermos w/Spout $25.00 5" Bread & Butter Plate $0.75 Silver 25 Cup Samovar $74.95 Event Equipment Soup Bowl $0.75 Silver 50 Cup Samovar $99.95
Coffee Cup $0.75 1'X1' Black & White Dance Floor $4.00
Saucer $0.75 Bars 3'X3' Smoked Oak Dance Floor $36.00
Demitasse Cup w/ Saucer $2.00 **Table Top Bars** Chrome Stanchion $30.00 Sugar Bowl $2.00 6' Table Top Bar $80.00 Black or Red Rope $9.00 Creamer $2.00 7' Table Top Bar - Serpentine $80.00 Garment Rack $25.00 Salt & Pepper Set $4.00 Umbrella Heaters, Mocha (Outdoor) $130.00 **Portable Bars** 9' Market Umbrella Natural w/Base $35.00 Canopies/Tenting 4' Portable Granite Bar $110.00 11' Market Umbrella Natural w/Base $65.00 10'X10' Festival Canopy $165.00 6' Portable Cam-Bar $150.00 Wooden Arch $135.00 20'X20' Festival Canopy $400.00 8' Wine Barrel Wood Bar $125.00 Many other sizes available. Call
for a custom quote. Central Valley Party
320 W Larch Rd #16 Tracy CA 95304
Our most Popular Items are listed. New Items are always being Phone: (209) 832-8890 added. If you don't see what you're looking for, Please Call centralvalleyparty.com /[email protected] to Inquire.
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May 12, 2025 Packet Pg. 654
CITY COUNCIL
STAFF REPORT
MEETING DATE: May 12, 2025
ITEM TITLE: Receive a Presentation and Provide Direction to Staff on the Design of the Pavilion, Restrooms, and Water Feature as Part of Improvements to the 700 Block of Laurel Street and Harrington Park.
RECOMMENDATION:
Receive a presentation and provide direction to staff on the design of the pavilion, restrooms, and water feature as part of improvements to the 700 block of Laurel Street and Harrington Park.
FISCAL IMPLICATIONS:
There are no fiscal impacts associated with the Council discussing and providing direction on the design of the pavilion, restrooms, and water feature improvements for the 700 block of Laurel Street and Harrington Park. Funds for this process, including development of design engineering (i.e. “shovel ready”) drawings, were appropriated by the City Council on October 28, 2024, through CIP Fund C2215 – Downtown Implementation. Based on the City Council’s two-year Budget Study Session held on April 29, 2025, a total of $9,750,000 will be budgeted in C2215 for anticipated adoption by the City Council on June 9, 2025. The budget will be allocated as follows:
$1,800,000 for design/engineering of the full span of 700 block Laurel plus Harrington Park; $7,600,000 for the first phase of construction; and $350,000 for financing and election campaign consultants. At the next City Council study session on for June 9, 2025, the project team will present the complete design for the full block of 700 Laurel plus Harrington Park and seek Council direction to pursue construction of Phase 1A, Harrington Park improvements.
BACKGROUND:
Design-Engineering for Improvements to 700 Block Laurel Street and Harrington Park Tonight’s meeting is the third in a series of four City Council study sessions scheduled to develop the schematic design for the 700 Block of Laurel Street and Harrington Park.
Project Overview
This project will implement the Downtown Streetscape Master Plan, which was recently adopted by the City Council on April 28, 2025.
During previous meetings with the City Council (September 23, 2024 and June 10, 2024), the Council expressed a strong desire to begin construction on a portion of the proposed Downtown Streetscape Master Plan. On October 28, 2024, the Council authorized WRT to prepare design engineering (i.e. “shovel ready”) drawings for the 700 block of Laurel Street, plus Harrington Park, with the direction to begin construction on Harrington Park sometime in 2025.
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May 12, 2025 Packet Pg. 655
The 700 Block of Laurel Street, plus Harrington Park, comprise Phase 1 of the implementation plan for the Downtown Streetscape Master Plan. Phase 1 further divided into two subphases:
Phase 1A consists of Harrington Park and Phase 1B consists of the entire span of the 700 block of Laurel Street, from Cherry to Olive Streets. Phase 1A and 1B will be designed as one complete project, however construction of Phase 1A is anticipated to commence in 2025, while construction of Phase 1B (Laurel Street) is undetermined at this time. See Figure 1 below.
Figure 1. Phase 1 Downtown Streetscape Implementation: 700 Block Laurel and Harrington Park SCHEMATIC DESIGN PROCESS (700 LAUREL STREET & HARRINGTON PARK):
A total of four study sessions with the City Council were planned to develop the final schematic design for the 700 block of Laurel Street and Harrington Park. The community is invited to participate in all sessions. A summary of the four study sessions is listed below. 1) February 10, 2025: Completed. The goal of this meeting was to ensure the program elements are in the right place before continuing to develop detailed design drawings (See City Council input in Attachment 3).
2) March 10, 2025: Completed. The goal of this meeting was to receive the Council’s input on site furnishings, paving design and materials, special elements, lighting, planting palette, and design choices for the water feature.
3) May 12, 2025: The goal of tonight’s study session is to confirm the designs for the pavilion and water feature.
4) June 9, 2025: The fourth Study Session will present the final schematic design to be used for the next phase of design development drawings. In addition, staff will present a cost estimate and seek the Council’s direction on the construction of Phase 1A.
PAVILION, RESTROOMS, AND WATER FEATURE:
The proposed designs for the pavilion and water feature were derived from the Downtown Streetscape Master Plan with additional input from the City Council received on March 10, 2025.
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May 12, 2025 Packet Pg. 656
Pavilion and Restroom
Ware Associates (“Ware”) will present rendered model views, plan drawings, and material swatches to share an overall review of the schematic designs for the pavilion (stage), and restroom and storage building in Harrington Park. Ware will present the project objectives and design considerations for both structures. After sharing views and material palettes for both structures, Ware will present plan drawings of the proposed features and accessories (such as plumbing fixtures, loudspeakers, lighting, ledge seating, and changing tables). Expected durability/maintenance and ADA code compliance will also be discussed. Finally, rendered model views of the design in a couple of different conditions will be presented, including regular daytime use, use during events, and the structures at night. To view graphics, see Attachments 1, 2, and
3. Water Feature
The refined design of the water feature reflects changes based on input received from the City Council during the March 10, 2025 study session (see the Council’s comments in Attachment 6).
For the water feature narrative, see Attachment 4, and for the water feature design, see Attachment 5. For this evening’s study session, staff seeks clear direction from the City Council on the design of the pavilion, restrooms, and water feature.
NEXT STEPS:
Following tonight’s session, staff and the consultant team will refine and complete design for the full span of the 700 block of Laurel Street, plus Harrington Park. At the June 9, 2025 study session, the project team will present the complete design for the full block of 700 Laurel, plus Harrington Park, and seek the Council’s direction to pursue construction.
Respectfully submitted by:
Al Savay, Community Development Director
Approved for submission by:
_______________________
Jeff Maltbie, City Manager
ATTACHMENT(S):
1. Pavilion Design
2. Restroom Design
3. Additional Details – Pavilion and Restroom Designs
4. Water Feature Narrative
5. Water Feature Design
6. City Council Input from Second Schematic Design Meeting of March 10, 2025
7. City Council Input from First Schematic Design Meeting of February 10, 2025
8. Public Comment
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May 12, 2025 Packet Pg. 657
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DOWNTOWN RENOVATION: PAVILION & PUBLIC RESTROOM
SAN CARLOS POCKET PLAZA WRT WARE 05.12.2025
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May 12, 2025 Packet Pg. 660
1 0 4' 8' 16'
LAUREL ST.
HARRINGTON
PARK
RESTROOM & STORAGE
STRUCTURE
PAVILION & STAGE
WATER FEATURE BY
FLUIDITY
HARRINGTON PARK
PUBLIC
RESTROOM &
STORAGE
PAVILION &
STAGE
SAN CARLOS POCKET PLAZA WRT WARE 05.12.2025
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May 12, 2025 Packet Pg. 661
PAVILION & STAGE
• An iconic and vitalizing
presence At the heart of
Laurel Street. Designed
to excite, invite, and
serve.
• Day to day use
The pavilion and stage
provides a ledge to sit, a
spot to meet, and a place
to take in the revitalized
downtown San Carlos.
The pavilion is an easy
to identify gateway into
Harrington Park.
• For special occasions
the stage is equipped
to support a variety
of performances,
from spoken word
presentations to musical
acts.
SAN CARLOS POCKET PLAZA WRT WARE 05.12.2025
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May 12, 2025 Packet Pg. 662
Stage Design
Considerations
• 18” high (bench
height) stage edge 60’
long ~ able to seat
approximately 30 people.
• 16’ x 10’ rectangular
clear space on the stage
- room for a 4 piece
band.
• Multiple stage fronts
(omnidirectional) - 1
Primary stage front
along Laurel Street,
1 secondary stage
front looking towards
Harrington Park.
• Shallow slope access up
to the stage, 48” wide.
LAUREL STREET
HARRINGTON PARK
KEYED NOTES:
1 2
3 18" RAISED STAGE
1:20 SLOPED STAGE ACCESS
CANOPY COLUMN
CANOPY ABOVE
FOUNTAIN / WATER FEATURE, SEE
DESIGN DRAWINGS
COLUMN SPEAKER (QTY. 5), SEE A
ENGINEER'S DRAWINGS
R10'-0"
R15'-0"
4'-0"
10'-0"
16'-0"
14'-0"
16'-0"
20'-0"
CLEAR
27'-11"
15'-5"
17'-0"
5'-0"
6'-0"
5'-0"
4 5
1 2
2 3
3 3
3 4
5 EXACT PLACEMENT AND
CONFIGURATION T.B.D., TO BE
MIN. 20' FROM STAGE EDGE
CANOPY EDGE TO BE MIN.
10' FROM BUILDING
STAGE/COL. TO BE MIN.
15' FROM BUILDING
R10'-0"
R15'-0"
PAST CURRENT
SIDEWALK EDGE
(DISTANCE FOR
REFERENCE ONLY)
R3'-0"
10'-19
32"
STAGE/COL. TO BE MIN.
15' FROM BUILDING
CANOPY
EDGE TO BE
MIN. 10' FROM
BUILDING
WALL LEGEND:
A2 8" CMU WALL, EXTERIOR CLAD IN PO
RAINSCREEN
M1 6" METAL STUD WALL
M2 METAL HAT CHANNEL FURRING WA
A3 8" CMU WALL, EXTERIOR CLAD IN PO
ART PANEL FRAME FASTENED TO R
SYSTEM, SEE SHEET A-13
A1 4" CMU WALL, EXTERIOR CLAD IN PO
RAINSCREEN SYSTEM, ANGLED, SE
1 0 1' 2' 4'
SCALE: 1
4" = 1'-0"
N
NOTES:
1. ALL DIMENSIONS TO FACE OF STUD, U.O
2. BUILDING AREA (ENCLOSED) 1486 SF.
EXTERIOR COVERED AREA (BREEZEWAY
3. NEW ELECTRICAL SERVICE VOLTAGE IS
3 PHASE, 4 WIRE.
L SCHEDULE,
CHEDULE,
DIVISION 5 METALS
5.01 SHEET METAL, PTD.
5.02 GALV. & PTD. STEEL GATE W/ WOOD
SLATS
5.03 GALV.& PTD. STEEL PRIVACY SCREEN W/
WOOD SLATS
DIVISION 07 THERMAL & MOISTURE PROTECTION
7.01 GALV. STEEL GUTTER, PTD.
7.02 GALV. STEEL DOWNSPOUT (ALIGN W/ COLS WHERE
OCCURS). PTD.
7.03 CERACLAD SIDING
DIVISION 08 OPENINGS DIVISION 09 FINISHES
8.01 METAL FIXED SKYLIGHT
8.02 STOREFRONT DOORS
8.03 FIXED STOREFRONT WINDOW ASSEMBLY
8.04 CASEMENT WINDOW
9.01 CERAMIC TILE
9.02 DISPLAY BOARD
9.03 ACOUSTIC WOOD CEILING
9.04 CEMENT BOARD, WATER DURABLE
DIVISION 10 SPECIALTIES
10.01 DIAPER CHANGING STATION
10.02 S.S. TOILET PAPER DISPENSER
S.S. STRAIGHT GRAB BARS, ADA
COMPLIANT
10.03 10.04 S.S. HAND SOAP DISPENSER
DIVISION 22 PLUMBING
22.01 LAVATORY
22.02 S.S. FAUCET, SELF-METERING
S.S. DRINKING FOUNTAIN, ACCESSIBLE,
STANDING, BOTTLE-FILLER
22.03 22.04 S
S6" Ø CIRCULAR FLOOR DRAIN
DIVISION 23 MECHANICAL (S.M.D.)
DIVISION 26 ELECTRICAL (SED)
23.01 AIR SUPPLY DUCT, S.M.D.
23.02 AIR SUPPLY LOUVER, S.M.D.
23.03 AIR EXHAUST LOUVER, S.M.D.
6 6
6 6
6 9'-33 4"
1'-4"
R4'-0"
22'-15
32"
KEYED NOTES:
1 2
3 18" RAISED STAGE
1:20 SLOPED STAGE ACCESS
CANOPY COLUMN
CANOPY ABOVE
FOUNTAIN / WATER FEATURE, SEE FOUNTAIN
DESIGN DRAWINGS
COLUMN SPEAKER (QTY. 5), SEE AUDIO
ENGINEER'S DRAWINGS
R10'-0"
R15'-0"
4'-0"
10'-0"
16'-0"
14'-0"
16'-0"
15'-5"
17'-0"
5'-0"
6'-0"
5'-0"
4 5
1 2
2 3
3 3
3 4
CANOPY EDGE TO BE MIN.
10' FROM BUILDING
STAGE/COL. TO BE MIN.
15' FROM BUILDING
R10'-0"
R15'-0"
PAST CURRENT
SIDEWALK EDGE
R3'-0"
10'-19
32"
STAGE/COL. TO BE MIN.
15' FROM BUILDING
CANOPY
EDGE TO BE
MIN. 10' FROM
BUILDING
WALL LEGEND:
A2 8" CMU WALL, EXTERIOR CLAD IN PORCELAIN TILE
RAINSCREEN
M1 6" METAL STUD WALL
M2 METAL HAT CHANNEL FURRING WALL
A3 8" CMU WALL, EXTERIOR CLAD IN PORCELAIN TILE W/
ART PANEL FRAME FASTENED TO RAINSCREEN
SYSTEM, SEE SHEET A-13
A1 4" CMU WALL, EXTERIOR CLAD IN PORCELAIN TILE W/
RAINSCREEN SYSTEM, ANGLED, SEE DETAIL 1 & 9/AD-15
NOTES:
1. ALL DIMENSIONS TO FACE OF STUD, U.O.N
2. BUILDING AREA (ENCLOSED) 1486 SF.
EXTERIOR COVERED AREA (BREEZEWAY) 850 SF.
3. NEW ELECTRICAL SERVICE VOLTAGE IS 120/208V,
3 PHASE, 4 WIRE.
6 6
6 6
9'-33 4"
1'-4"
"
22'-15
32"
SAN CARLOS POCKET PLAZA WRT WARE 05.12.2025
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May 12, 2025 Packet Pg. 663
ALASKAN YELLOW CEDAR
STANDING SEAM METAL ROOF PANELS,
SEAMS 16" O.C., CLASS A ASSEMBLY
GRAY CONCRETE - 2% LAMP BLACK COOL SLATE GRAY
SLIP-RESISTANT BROOM FINISH
ALASKAN YELLOW CEDAR
STANDING SEAM METAL ROOF PANELS,
SEAMS 16" O.C., CLASS A ASSEMBLY
RETE - 2% LAMP BLACK COOL SLATE GRAY
SISTANT BROOM FINISH
PAVILION MATERIALS
Standing Seam Metal Roofing
Alaskan Yellow Cedar
Cast-in-Place Concrete
Provides durability, longevity, and
a sleek appearance. Excellent
weather resistance and requires
minimal maintenance.
Natural resistance to moisture,
decay, and insects. A beautiful,
warm color and fine grain.
Offers custom shaping, excellent
structural integrity, and longevity.
Can withstand harsh weather
conditions and resist fire and pests.
Can be sealed to help remove
unwanted marks.
SAN CARLOS POCKET PLAZA WRT WARE 05.12.2025
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LIGHTING & A/V
1 Column Mounted Indirect / Direct Fixture
Column Mounted Indirect /
Direct Fixtures
(5) Column Array
Loudspeakers and
(2) Portable Subwoofers
(similar at restroom canopy)
SAN CARLOS POCKET PLAZA WRT WARE 05.12.2025
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PERFORMANCE COMPATIBILITY
Attachment Points
Performances can be supplemented
with additional A/V equipment or
specialty lighting.
Currently in progress is the
coordination of permanently fixed
stage truss attachment points.
SAN CARLOS POCKET PLAZA WRT WARE 05.12.2025
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SITE SECTION
• Pavilion Canopy: 16’-0” at low point rising up to 22’-0” at high point • 18” high stage (bench height)
• Restroom interior: 8’-0”
• Restroom Canopy ceiling: 14’-6”
SAN CARLOS POCKET PLAZA WRT WARE 05.12.2025
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SITE SECTIONS
SAN CARLOS POCKET PLAZA WRT WARE 05.12.2025
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PUBLIC RESTROOMS & STORAGE
• Contextually sensitive
A minimally sized
structure set to the far
corner of Harrington
Park, positioned for
straightforward access.
• Protected Entry
At the front face of the
structure is a timber
canopy (matching the
pavilion) that provides
protection for visitors
and the features/fixtures
situated below. The
canopy helps indicate
this park amenity and
draw visitors to it.
• High Performance The
building is constructed
out of CMU blocks and is
clad in durable scratchresistant tiles. Two ADA
compliant restroom stalls
are furnished with highquality public restroom
fixtures.
SAN CARLOS POCKET PLAZA WRT WARE 05.12.2025
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1 F.O.C.
2 F.O.C.
F.O.C. A
F.O.C. B
F.O.C. C
F.O.C. D
E ℄COL.
RESTROOM DESIGN FEATURES
Storage Room
Water Feature
Mech. Room
RR 1 RR 2
Covered Entry
Universal Changing Table
ADA Lavatory
ADA Toilet
ADA Grab Bars
Floor Drain
Touchless Hand Dryer
Diaper Changing Table
ADA Urinal
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RESTROOM MATERIALS
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DESIGN PERSPECTIVES
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DESIGN PERSPECTIVES
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DESIGN PERSPECTIVES
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Downtown San Carlos Laurel Street Water Feature
Located on Laurel Street directly across from Harrington Park, this sculptural water feature is designed as a visual and experiential anchor along the primary axis connecting the park, the street, and the adjacent stage pavilion. At its heart is a striking rock- like sculpture set atop a series of three tiered pools. Water spills from the sculpture, initiating a cascading waterfall that flows through the pools before disappearing into a discreet, flush- mounted grate at ground level.
The water descends an abstracted hillside, animated by intermittent, flower- like "blooms"— small, sparkling jets that offer dynamic visual interest. The tiered pools subtly overflow their edges. Seating brackets the fountain. The benches invite visitors to pause, listen to the soothing sound of water, gather with friends, or capture a memorable photo.
The cascade primarily faces the park and pavilion, creating an open and welcoming presence, while offering a more serene and introspective experience along the adjacent sidewalk.
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City Council Input - Meeting March 10, 2025
11. STUDY SESSION
Receive a Presentation and Provide Direction to Staff on Site Furnishings, Paving Design and Materials, Special Elements, Lighting, Planting Palette, and Design Choices for the Water Feature on the 700 Block of Laurel Street and Harrington Park.
Water Feature:
CM Rak inquired about the budget for the water feature. He expressed a preference for the first design option, noting that he could envision children playing in it but was uncertain if the additional cost was justified. CM Rak views the area as an urban park with a modern aesthetic rather than a wooded setting and would prefer a fountain design that aligns with that theme, provided cost is not a concern.
VM Venkatesh shared that a water feature encouraging children's play would create more noise and unlike the Zen feel that people think of a water feature. She liked the fog concept for its uniqueness but was unsure how it would work. She preferred the sculptural rock option with plantings, seeing it as more organic, peaceful, and still engaging for children in fun ways, like adding boats.
CM Layton expressed concerns about the cost of Concept 1 and leaned towards Concept
2. He appreciated the creativity of the fog feature and its year-round concept. He also noted that a large water feature, like in concept 1, would take up a significant amount of space.
CM Dugan inquired about the safety concern in concept 1 and the various features. He also inquired who is drawn to fog, referring to concept 2. CM Dugan expressed his appreciation for the Interactive Blooms feature in concept 1, highlighting its role as a central gathering space for families, where children can engage while others dine. He noted its modular and flexible design, allowing it to be turned off for a more peaceful setting during pavilion events. Additionally, he acknowledged its benefit of providing extra seating in the area. CM Dugan shared that he is not too concerned about the budget for a signature design.
Mayor McDowell stated that she is not a fan of the concept 1 design because children will get wet and go inside a retail shop or restaurant soaking wet. She noted that San Carlos downtown is for retail and dining, it is not a park. Mayor McDowell commented that concept 2, the fog feature, is unsustainable and would prefer concept 3. She commented that there should be barriers around the fountain and no splash pads. Mayor McDowell wanted a feature that runs 24/7.
CM Rak inquired about the amount of water loss in the fog water feature option and the sizes of each option.
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He also inquired if the consultants sought feedback from the downtown businesses on their thoughts of having a water feature downtown such as noise.
CM Rak shared that he leaned toward Concept 3, noting it is a better fit for the space and more suitable for accommodating events.
VM Venkatesh inquired if the fog would cool down the surrounding area.
CM Layton requested clarification from the Mayor on the goal of the evening—whether it was for the Council to reach consensus on a water feature or to determine a majority preference for one of the options.
CM Layton wanted to know if there are other options available other than the 3 that were presented.
CM Dugan requested clarification on the meaning of the term “interactive.” He asked the Council to consider a raised version of Option 1 for the water feature—one where people aren’t playing in it, but rather with it.
City Manager echoed CM Dugan’s thought.
CM Dugan did not support fog in downtown San Carlos.
Mayor McDowell stated they should consider the cost of the water feature and needed to understand the cost tradeoffs and not fall short on the budget.
CM Rak suggested that a fountain with occasional water bursts or intermittent activity could be a viable option.
CM Dugan commented that a common thread among the Council was incorporating a vertical stone element into the water feature.
Public Comment – Water Feature
Sonia Elks (In-person) suggested piloting a section of misters that activate above 80°F to provide a refreshing, low-impact experience, especially for children. She recommended using runoff water from features to irrigate downtown landscaping. Additional ideas included incorporating color-changing elements and using mist or fog to add moisture to the air for comfort in dry conditions.
Paving Feature
CM Layton inquired about the meaning of pathways. He shared his liking of using paving to distinguish the different functions or dynamics within the area. CM Layton commented that the public would appreciate clarification of flow patterns, such as centralized points and diagonal walking paths.
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CM Dugan appreciated the thoughtfulness of the paving patterns but suggested keeping them casual and natural in appearance. He expressed that it would be ideal to use pavers that are not scooter-friendly, to discourage people from riding through the area.
CM Dugan, suggested to have the Donor pavers close to the pavilion instead of tucked aways near the bathroom.
VM Venkatesh inquired about the maintenance of the pavers, considering the presence of foliage.
Mayor McDowell inquired about the outdoor dining setup, specifically whether there would be short partitions and how they might impact the pavers. She asked who is zoned for retail and restaurants that might potentially receive less space due to the bioretention areas, emphasizing that this is information the City should know sooner rather than later.
Mayor McDowell stated that the Council needs to set a policy direction for how outdoor dining should be implemented. She commented that streetscape and pavers are interwind and perhaps the Council needs to have another meeting to discuss.
CM Dugan shared that the European model was discussed at the Downtown subcommittee meeting. He shared that in his mind the seating would always be bistro tables, umbrellas, and no enclosure. It would be free flowing.
CM Dugan emphasized the need to review best practices for outdoor dining, noting that parklets were a temporary pandemic solution and should not dictate future space allocation. They stressed that outdoor dining should stay in front of restaurants—not spill into retail areas—and that the focus should be on creating a vibrant public square. The Council should approach this deliberately and reach consensus, given the expected strong community opinions.
CM Rak shared that he is unsure if the dining policy would have anything to do with the paver designs.
Mayor McDowell expressed concern about costs and asked whether it was necessary to have so many different colors of pavers. She inquired whether certain types of pavers might be difficult for people with disabilities to traverse.
Public Comment – Paving Features
Sonia Elks (in-person) shared that there are alternative ways to deter scooters, such as using truncated domes, with examples seen at the major playground in Redwood City.
She emphasized the importance of creating a designated space for active teens to help prevent disruptive behavior in other parts of Downtown.
Benches
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CM Dugan expressed a preference for the innovative concrete bench designs, noting that wood does not hold up well in outdoor weather conditions. He noted that steel or concrete could be comfortable as well.
CM Layton shared that he liked the look and feel of benches with integrated lighting and noted that he is not a strong supporter of movable furniture.
VM Venkatesh reiterated that wood would not work in this area, unless it is teak, which is expensive.
CM Rak reiterated the preference for using materials other than wood for benches. He agreed with CM Layton that movable furniture should be reserved for special occasions and not require daily handling by staff. He also suggested placing some backless benches in the center of the plaza to allow flexibility for people to turn around during performances and similar events.
Mayor McDowell commented that the City should consider the heat generated by the sun on benches during the summer months. She also wondered whether there is a way to anchor the furniture, noting that people often like to sit and enjoy their email.
VM Venkatesh shared her preference for the wood look, citing an example from the Palo Alto Medical Foundation. She noted that steel benches become uncomfortably hot to sit on during the summer.
CM Rak commented that tables should be provided so people can sit outside and enjoy their meals. Regarding benches, he expressed a preference for materials that require minimal maintenance and can withstand weather conditions.
CM Dugan expressed a preference for bench materials that offer a long-term solution. He proposed using metal benches for the urban plaza setting, while reserving more organic elements for the area around the Pavilion.
Other Furnishing
CM Dugan shared that he liked the proposed contemporary furniture elements, appreciating the mix of urban and organic styles.
CM Rak expressed a preference for a more contemporary look. He emphasized the importance of including recycling, trash, and compost bins in the downtown area, stating that he wants San Carlos to demonstrate ecological leadership.
CM Rak inquired whether the consultant team had consulted with an arborist to ensure appropriate tree sizing and to confirm that the trees would grow well together and remain healthy.
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VM Venkatesh inquired about the design of the bridge and whether it would resemble the one shown in the photos. She expressed concern that children might fall into it.
Mayor McDowell shared that she would like to know the cost of the various bollard options and noted that all the proposed designs looked great.
Public Comment - Furnishings
Sonia Elks (in-person) emphasized the importance of including bike racks and suggested that incorporating more artistic designs would be a nice touch.
Planting and Trees
VM Venkatesh shared her concern with Crepe Myrtle and the California Sycamore trees.
CM Rak expressed a dislike for deciduous trees. He said he liked the Crepe Myrtle for corner plantings, noting that they are not large trees. He also expressed a preference for plants that are more native to the area.
CM Layton expressed agreement with CM Rak and VM Venkatesh, noting that the most frequent complaints from the public involve sap on the pavement and other droppings, such as acorns. They emphasized the importance of selecting plantings that help keep the area clean. He also voiced support for incorporating more California native plants into the downtown area, both for maintenance benefits and to enhance the local thematic identity.
CM Dugan expressed appreciation for the variety of colors in the proposed plants and trees. He agreed with other Councilmembers on the importance of maintaining cleanliness in the area. He also shared his dislike for evergreen trees, citing their large size and resemblance to Christmas trees, and expressed a preference for deciduous trees.
Mayor McDowell inquired about the possibility of aphids being present on the plants. She also expressed her appreciation for the Sycamore evergreen trees. Additionally, she asked whether the bioretention area had expanded. Mayor McDowell emphasized the importance of ensuring that the bioretention area does not encroach upon the 700 block of Laurel Street, as this area is designated for retail and dining purposes.
CM Dugan stated that if they believe the bioretention area is too large, the City can always install a storm drain as an alternative.
Public Comments – Plantings
Sonia Elks (In-person) propose placing a metal grate over large bioretention areas, with a picnic table or bike racks on top, allowing water flow while making the space usable.
Lighting
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CM Dugan expressed a preference for more contemporary lighting options. He mentioned that he had never heard of catenary lighting before but liked the sense of place that the lantern-style lighting provides.
CM Rak agreed with CM Dugan on the catenary lights and a more contemporary lighting option. He liked the upper left and lower right lighting options.
CM Layton agreed with his fellow council members and requested clarification on the decision regarding aerial lighting.
CM Rak appreciated catenary lights throughout downtown which makes the area more inviting.
Mayor McDowell liked the catenary lights as well but noted that she is unsure how that fits in the overall light scheme of downtown. She also shared that she did not like the contemporary light.
Mayor McDowell shared that she once visited a town called Winter Park in Florida, where the streetlamps were "smart” allowing people to charge their phones and featuring small speakers that played music.
CM Dugas expressed support for the lights but questioned using them along the entire block, suggesting it might dilute their impact. He sees the lights as a way to highlight special areas, such as near a future fountain with unique lighting. He recommended involving a consultant to explore options, including different light styles or sizes, perhaps even a commercial version of fairy lights for places like Harrington Park.
CM Dugas expressed his linking of bollard lights and bench lights.
VM Venkatesh noted that the final choice should be based on cost and what makes the most sense.
Special Element
CM Dugan expressed a desire for the special element to be both artistic and functional, ideally serving as something children can also play on. He liked the idea of a chessboard and suggested adding a ping pong table that could double as a dining table. CM Dugan also expressed interest in having a cornhole game in the downtown area.
VM Venkatesh expressed a preference for chalkboards and chalk, allowing children to be creative rather than simply observing something. She favored a more organic approach and shared an example from San Diego, where trees are incorporated into the space in a way that allows kids to climb on them.
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CM Rak appreciated the elements presented by the consultants. He liked the idea of interactive features and suggested that some of them could be seasonal, brought out occasionally to enhance the experience.
CM Layton emphasize viewing these areas as opportunities rather than immediately committing to structures or play equipment. For example, a play sculpture might be a great fit for Harrington Park to start with, while leaving room to add other elements gradually over time.
CM Dugan encouraged collaboration with the Parks and Recreation Department, noting their ongoing Centennial celebrations, including installing historical markers with QR codes around town. He suggested designating a spot in the Centennial Plaza and placing one of these markers there to highlight San Carlos’s history.
Mayor McDowell expressed her support for the Ping Pong table idea and inquired whether the consultant team is collaborating with Art Bias to potentially create a project for the 700 block
Public Comment – Special Element
Sonia Elks (in-person) stressed the importance of engaging teenagers and proposed two ideas. First, she suggested creating a pump track for kids on wheels, which should be accessible to the downtown. Second, she recommended organizing a mystery or trivia challenge where participants move around the town to solve clues, with a prize like $100 and potential business sponsorships. In addition, Sonia advised incorporating interactive elements like short tree trunks or rocks for walk on them, as they encourage movement and play, rather than relying on a single static structure.
Nathan (via Zoom) suggested adding a community board along with a directory of retail shops and restaurants.
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City Council Meeting February 10, 2025
10. STUDY SESSION
b
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Receive a Presentation and Provide Direction to Staff on the Design and Layout of Key Features for Improvements to the 700 Block of Laurel Street and Harrington Park (Phase 1 Downtown Implementation Component).
Lisa Porras, Planning Manager and Jim Stickley, Principal consultant at WRT presented the item.
Council Member (CM) Layton inquired about the intended purpose and vision for the small and medium size stage. He also asked about the spatial relationship between the stage and the water feature, questioning whether they might compete with each other during a music performance. Lastly, he inquired about the design concept and functionality of the alleyway.
CM Dugan expressed his preference for the pavilion to be medium or medium-plus in size, considering the nearby residents behind the Wheeler Plaza area. He questioned whether this location would serve as the primary gathering space and suggested making it the central focal point.
CM Dugan noted that the public may want seating options as events are happening on the pavilion. He also expressed his preference for the fountain to have an organic, flowing design that complements the overall aesthetic rather than a boxed-in structure.
CM Dugan agrees with CM Leighton that the alley entrance should be welcoming and pull people into the plaza. He also suggested beginning public communication about the plans for the Memorial Bricks and their future placement. Council Member Dugan reminded staff and the consultant team to keep in mind the existing newspaper boxes and the City’s free papers, emphasizing their significant community benefit.
CM Rak expressed his appreciation for the idea of a gateway to the park from the alleyway.
He agreed with CM Dugan’s idea of making the water structure more fluid like. He also noted the importance of finding the right balance with the stage and music, considering there are residents all around, including along El Camino Real.
Mayor McDowell emphasized the need for a drinking fountain or water station. She also wanted to ensure that diaper-changing stations are included in the restrooms. Additionally, she expressed uncertainty about the inclusion of outdoor handwashing stations.
Mayor McDowell liked the idea of a bench in front of the water structure, as it serves a dual purpose—providing seating and acting as a barrier to prevent young children from
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accessing the water directly. She suggested backless seating so people can face either the fountain or pavilion.
Mayor McDowell inquired about the status of the U.S. Bank driveway and expressed her appreciation for the natural elements incorporated into the overall design, especially the wood pavilion, which soften the features.
Mayor McDowell agreed with CM Dugan that if the City builds a medium-sized stage, it should be able to accommodate at least a medium-sized band. She noted that there may be some pushbacks from residents in Wheeler Plaza if bands perform in that area.
Mayor McDowell suggested bike parking in the alley behind Harrington Park.
Public Comment
Karen Molinari (in person) expressed gratitude for the project and enthusiasm for its impact.
As a member of the Economic Development Advisory Commission, she is optimistic that it will increase foot traffic in downtown and benefit businesses along Laurel Street.
Caroline (in Zoom) supported the idea of sinks outside the bathrooms, noting they would reduce wait times and discourage their use for bathing. They suggested looking at a similar example in a park on 24th Street in San Francisco’s Noe Valley for reference.
Council Members Final Comments
CM Dugan sought confirmation from City Attorney Greg Rubens that the City is not infringing on the US Bank easement due to the permanent closure of the 700 block of Laurel Street.
He also proposed adding Tableau rock seating in the 700 block, similar to those in Chilton Park, as they would complement the fountain well.
CM Layton emphasized the importance of design details, particularly regarding outdoor handwashing stations, which could unintentionally encourage bathing. He also highlighted the need for thoughtful seating design to enhance events like Music in the Park and ensure the pavilion remains the focal point. He raised concerns about potential bottlenecks in the fountain areas and the impact of elevating the pavilion, including accessibility and unintended uses, such as protests. CM Leighton urged careful consideration of these elements to ensure a functional and welcoming downtown space.
CM Rak emphasized maintaining the promenade's accessibility, ensuring that while music and seating are important, they should not obstruct movement or business access. He preferred backless benches and highlighted the there should be a distinction between an urban plaza and a traditional park. While natural design elements are welcome, the space
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should still function as a downtown promenade, balancing aesthetics with practicality in an urban setting.
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City of San Carlos
(650) 802-4131
From: Jacki Yahn
Sent: Tuesday, April 29, 2025 6:44 PM
To: Amy Newby <[email protected]>
Subject: Fountain/play feature in proposed plan
External Sender - From: (Jacki Yahn
<j >)
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Hi Amy,
Appreciate all the work done on the downtown plan! Looks really nice.
I realize I should have voiced this sooner but better to at least share now.
The stage is perfectly placed at the intersection of Harrington park and the main plaza. The water feature opposite seems like a hindrance when there are performers- such as at holiday event and wine and art.
It restricts the audience from being in front of the stage. This past holiday there were folks packed around the stage for nearly all the performances.
Perhaps the water fountain can be relocated? With draughts, minimizing it makes sense to me. The lovely water fountain in the back of city hall is never used anymore and looks sad.
Thank you,
Jacki Yahn
https://urldefense.proofpoint.com/v2/url?u=https3A__www.sancarlosdowntownplan.com_-5Ffiles_ugd_f9fd48- 5/5/25, 12:11 PM Fw: Fountain/play feature in proposed plan - Linnet Kwok - Outlook about:blank 2/3
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5F34b9791ca8fb43cfa396b39b624cd50e.pdf&d=DwIFAg&c=euGZstcaTDllvimE N8b7jXrwqOf-v5A_CdpgnVfiiMM&r=LScbUDMJoX8ozlPLidpx9QzLRFmtJdJd776IPIKOI&m=jBMMjA1xXSdPiiWQtYFLmsfmeXBW5dQWJsaTnlyttogM8cQf_tgML2YJ8_ e7WgdT&s=uuzARLhpgiIiEU94h77WeSQ1tiAJzZM9O7VNcZa_Uhk&e= Sent from my iPhone
5/5/25, 12:11 PM Fw: Fountain/play feature in proposed plan - Linnet Kwok - Outlook about:blank 3/3
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CITY COUNCIL
STAFF REPORT
MEETING DATE: May 12, 2025
ITEM TITLE: Consideration of Actions for the Alexandria Center for Life Sciences Project 961-967, 987, 1003, 1011, 1015, 1057, and 1075 Commercial Street; and 915, 921, 1015, 1055, and 1063 Old County Road (APNs 046-162-010, 046-162-210, 046-162-270, 046-162-280, 046-162-290, 046-184-090, 046-184-110, 046-184-120, 046-184-280, 046-184-290, and 046-184-300): Adopt a Resolution Certifying the Environmental Impact Report and the Associated Mitigation Monitoring and Reporting Program; Introduce an Ordinance Amending the Zoning Map to Change the Zoning of the Site from IH – Heavy Industrial Zoning District to PD – Planned Development Zoning District and Approving the Associated Planned Development Plan and Master Sign Program; and Introduce an Ordinance Approving a
Development Agreement with Alexandria Real Estate Equities.
RECOMMENDATION:
The Planning and Transportation Commission and staff recommend that the City Council:
1. Adopt a Resolution certifying the Environmental Impact Report (EIR) and adopting the associated CEQA findings of fact and Mitigation Monitoring and Reporting Program; and
2. Introduce an Ordinance amending the Zoning Map to change the site from IH – Heavy Industrial Zoning District to PD - Planned Development Zoning District and Approving the associated Planned Development Plan and Master Sign Program; and
3. Introduce an Ordinance approving a development agreement with Alexandria Real Estate Equities.
FISCAL IMPLICATIONS:
Alexandria Real Estate Equities (“Applicant”) has paid the appropriate application fees and provided deposit funds to pay for expenses related to the environmental review and other reports and analyses associated with the Alexandria Center for Life Sciences Project (“Project”). The Project will be required to pay building permit fees and City impact fees. City impact fees total over $89 million and include commercial linkage (affordable housing), childcare, sewer, and traffic fees. The proposed development agreement includes community benefits, which are outlined in the analysis section below and are valued at $50.3 million.
The proposed development will also benefit the City with increased property tax, increased sales tax revenue, and new job creation. The estimated increased revenue to the City is $3,500,000 per year in additional property, sales and business registration tax revenue. The development agreement also has a requirement to designate the property as the place of sale for construction materials to ensure the sales tax is distributed directly to the City.
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BACKGROUND:
On March 3, 2020, Alexandria Real Estate Equities submitted an application for a new life science campus project. The review of the application materials and preparation of the Environmental Impact Report (EIR) analysis occurred concurrently with the preparation of the East Side Innovation District Vision Study, which was completed in October 2021. On February 23, 2023, the applicant submitted a revision to the original project that resulted in an increase in the building floor area. The City released the Draft EIR on July 25, 2024 for a 60-day public review and comment period. Responding to staff’s comments on the project design and reflecting a change in the phasing scenarios, the Applicant submitted a further revised project on September 9, 2024.
The Final EIR, released on February 18, 2025, incorporates the revised project, text revisions, and revisions to mitigation measures, and provides responses to comments received during the Draft EIR public review period.
Following is a chronology of the project review timeline:
Event Date
Application filed March 3, 2020
Notice of Preparation Scoping review period June 28 - July 27, 2021 Planning Commission Public Scoping Meeting July 19, 2021 Revised project submittal February 23, 2023
Draft EIR review period July 25 – September 23, 2024
Public Hearing on the Draft EIR August 13, 2024
Revised project submittal September 9, 2024
Release of Final EIR February 18, 2025
Planning and Transportation Commission public
hearing
April 21, 2025
Process: The Planning and Transportation Commission (PTC), at its April 21, 2025 meeting conducted the public hearing and adopted Resolution PTC2025-03, recommending the City Council certify the EIR and adopt the associated Mitigation Monitoring and Reporting Program (MMRP) and adopted Resolution PTC2025-04, recommending the City Council adopt the Planned Development Zoning, Planned Development Plan, Sign Program, and Development Agreement. The PTC also approved the Design Review and Grading and Dirt Haul for the first two buildings, the Transportation Demand Management Plan, the Protected Tree Removal request, and the Tentative Parcel Map, which would all become effective if the City Council approves the forementioned items.
The items for consideration by the City Council are the EIR, Planned Development Zoning, Planned Development Plan, Sign Program, and Development Agreement.
Existing Conditions: The 25.34-acre project site is bound by Commercial Street to the north, Old County Road to the west, Industrial Road to the east and Pulgas Creek to the south. The site was previously occupied by Kelly Moore Paint Company (buildings demolished) and is currently improved with several commercial buildings, one of which is occupied by Joby Aviation. The approved but not yet developed Sobrato life science project is located to the north of the project site at 841 Old County Road. The project site is surrounded by commercial, office, and retail uses.
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The closest residential uses to the site are the 1001 Laurel Street mixed-use residential building, approximately 300 feet to the west and across El Camino Real, with single family homes beyond in the direction starting about 600 feet from the Project site. The Greater East San Carlos neighborhood has single family homes located approximately 1,300 feet to the north of the Project site.
The site is located immediately adjacent to the pedestrian undercrossing at Old County Road and Commercial Street, which aligns with Arroyo Avenue to the west across El Camino Real and provides access to downtown.
The site is zoned Heavy Industrial (IH) with a General Plan land use designation of Planned Industrial. The site is located within the East Side Innovation District Vision Plan area.
PROJECT DESCRIPTION
Once fully developed, the site would contain six office/research and development buildings with 1,603,879 square feet of floor area; two amenity buildings containing 24,689 square feet; and two parking structures with a total of 3,335 parking spaces and 780,550 square feet of floor area.
Overall, the site would contain a total of 2,409,119 square feet floor area, resulting in a floor area to site area ratio of 2.18. The applicant proposes to construct the office/research and development life science campus in three phases.
Phases:
Phase 1 Phase 2 Phase 3
Phase 1: Two New Buildings and Surface Parking
• Building 1 (B1), five stories (300,800 square feet), located at the corner of Commercial Street and Industrial Road
• Building 2 (B2), five stories (201,810 square feet), located along Commercial Street
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• 41 parking spaces in a surface parking lot along Industrial Road and 970 spaces in a surface parking lot located at the corner of Old County Road and Commercial Street • Commercial Street will be improved and a new traffic signal will be installed at Old County Road and Commercial Street
Phase 2: Three New Buildings and a Parking Garage
• Building 3 (B3), seven stories (330,600 square feet), located along Industrial Road • Building 4 (B4), seven stories (137,962 square feet)
• Building 7 (B7), a single-story amenity building (16,000 square feet) • Parking garage (PG2) with 1,980 parking spaces; the parking garage is proposed with eight levels above grade and one level below grade
• Pulgas Creek will also be improved in phase 2
Phase 3: Three New Buildings and a Parking Garage
• Building 5 (B5), seven stories (322,480 square feet), located along Commercial Street • Building 6, six stories, (310,227 square feet), located at the corner of Commercial Street and Old County Road
• Building 8 (B8), single-story amenity building (8,967 square feet) designed to activate the street
• Parking Garage 1 (PG1) contains 1,355 parking spaces; the parking garage is proposed with five levels above grade and one level below grade and is attached to Building 8 • Removal of surface parking lot of 970 spaces along Old County Road Summary of proposed building floor area and heights
Floor Area Height at Roof
Line
Height at Top of
Mechanical
Screen
Building 1 300,800 sf 82’ 100’
Building 2 201,810 sf 82’ 100’
Building 3 330,600 sf 114’ 132’
Building 4 137,962 sf 114’ 132’
Building 5 332,480 sf 114’ 132’
Building 6 310,227 sf 98’ 116’
Building 7 (amenity building) 16,000 sf 18’ 36’
Building 8 (amenity building) 8,967 sf 11’-6” n/a
Parking Garage 1 295,450 sf 43’ n/a
Parking Garage 2 485,100 sf 74’-6”’ n/a
On-site improvements and amenities:
The project includes substantial landscape and hardscape improvements with 24% of the site (97,120 square feet) in landscaped areas. All spaces are available to the public. These include:
• A landscaped plaza along Commercial Street, “The Arrival Plaza”, adjacent to Building 5. The plaza is approximately 66,000 square feet in area and includes seating areas with moveable lounge furniture, wood log bleacher seating, plaza art, trellis structure, and overhead lighting.
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• A “Paseo” is designed central to the campus between the buildings running in an east/west direction. The Paseo is designed to accommodate fire access to the buildings and provides various features including seating with benches, outdoor workspaces, a trellis with seating, café tables, and landscaping.
• A “Central Green” area is provided adjacent to Pulgas Creek and the Building 7, the proposed amenity building. The Central Green also includes an underground stormwater detention system to retain water during heavy rain events. This area is also designed with a round raised boardwalk with seating surrounding a raised lawn area, wood decks, trellis structures with seating, lounge chairs, and a chess field. The interior of the campus between the buildings contains landscaped areas with pickle ball courts, a bocce ball court, a half basketball court, and ping pong tables.
The Applicant proposes to improve the entirety of Pulgas Creek adjacent to the project site, provide a publicly accessible creekside trail, and construct on-site flood mitigation improvements.
The creek improvements include removing invasive plant species, widening the creek bed and improving the creek banks (including off-site). The on-site improvements include new riparian planting, a raised boardwalk creekside trail, and on-site stormwater retention for flood mitigation.
These improvements will be constructed during Phase 2 of the Project development. The Project complies with the City’s current 25’ creek setback requirement and in many locations, greatly exceeds this setback.
Proposed cross section with Pulgas Creek improvements and Central Green Architecture/Design:
The PTC approved the Design Review for Phase 1 which includes the first two life science buildings, Building 1 and Building 2, both located along Commercial Street, subject to the City Council’s approval of the PD Zoning and PD Plan. The Applicant will be required to obtain Design Review approval from the PTC in the future for the remaining buildings. Each building on the campus is designed with a unique architectural design with complementary elements that correspond to the other buildings within the project.
Building 1 is a five-story building located at the southwest corner of Industrial Road and Commercial Street. The building is proposed with 300,800 square feet of floor area at a height of 82’ to the roofline and 100’ to the top of the mechanical screen. The building is proposed to be setback 27’ from Industrial Road and 30’ from Commercial Street. The building is proposed with glass and dark grey metal panels with lighter color panels facing east towards Industrial Road.
The alternating colors provide light and movement through the building. The building is designed with undulating terraces with warm tone metal panel soffits to lighten the façade. The ground level includes large storefront windows and an expanded entry feature along Commercial Street.
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Proposed Building 1 – View from Industrial Road at Commercial Street Building 2, located along Commercial Street is proposed at five stories with 201,810 square feet of floor area. The building is proposed at a height of 82’ to the roofline and 100’ to the top of the mechanical screen. The building is setback 30’ from Commercial Street and is designed to angle away from the street to open towards the Arrival Plaza. The building façade includes clear insulated vision glass with warm tone metal panels. The butterfly metal panels include light tone metal on the ends. The building facade will appear to vary with depending on the reflected light as a pedestrian moves around the building. Multi-height terraces are proposed with warm tone metal panels to connect to the other buildings. The ground floor includes large glass facade and warm tone metal panels.
Building 2 – Interior campus view from Paseo
Parking for Phase 1 will be provided in a surface parking lot along Industrial Road with 41 parking spaces and a temporary surface parking lot at the corner of Commercial Street and Old County Road with 970 spaces. The temporary parking lots will be improved to current City standards including a shade tree for every six parking spaces, resulting in 129 trees. Bicycle parking for Phase 1 includes eight short-term spaces and 78 long-term spaces for a total of 86 bicycle spaces.
Master Sign Program: The Master Sign Program included in the Planned Development Plan for the campus includes building mounted wall signs for tenants, building campus signage, campus
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monument signs at each street corner, and wayfinding signs as outlined in the Planned Development Plan. The building tenant signs are proposed with a maximum area of 150 square feet per sign and no more than two signs per building elevation. The future tenant signs require staff level review for consistency with the Master Sign Program.
Protected Tree Removal: The Project includes removal of all trees on-site and replacement with new planting. Of the 56 trees proposed for removal, ten are considered Protected under the City’s Municipal Code. The Protected trees include America sweetgum trees and an Atlas Cedar tree.
These trees are rated in good to poor condition. The Municipal Code requires replacement planting of Protected trees at a ratio of one new tree for each removed tree. The Applicant proposes 528 new trees on the campus. The proposed tree planting exceeds the City’s tree replacement requirement of ten trees and exceeds the City’s planting requirement of one tree for every 5,000 square feet of lot coverage which results in 221 new trees.
Parking Vehicles and Bicycles: San Carlos Municipal Code requires one vehicle parking space for 800 square feet of lab space and one vehicle parking space for 300 square feet of office area.
As proposed (60% office and 40% lab), the required parking is 4,010 spaces or 2.5 spaces per 1,000 square feet of floor area. In accordance with San Carlos Municipal Code Section 18.20.050, the number of parking spaces shall be reduced by 20% with a Transportation Demand Management (TDM) plan. With the TDM reduction, the required parking is 3,208 parking spaces, or 2 spaces per 1,000 square feet of floor area. The Applicant has offered 60 spaces for public parking on nights and weekends to accommodate access to the publicly accessible open spaces, café, and trails on-site.
The Applicant has agreed to a maximum parking ratio of 2 spaces per 1,000 square feet of floor area, excluding any dedicated public parking. The lower parking ratio agreed to by the applicant supports the measures outlined in the TDM plan to reduce single occupancy vehicle trips to the site and is consistent with the City’s TDM requirements.
The Project includes 252 long-term bicycle parking spaces. This exceeds the City’s Municipal Code requirement of one bicycle parking space for every 50 vehicle parking spaces, resulting in 67 bicycle spaces.
Off-site improvements: The Project proposes completing Commercial Street improvements and installing a new traffic signal at Commercial Street and Old County Road during the first phase of development. The Commercial Street improvements include repaving the street from curb line to curb line, constructing a new 10’ wide bike path, and constructing an approximately 35’ wide landscaped area including a double row allée of street trees and 6’ wide sidewalk. The improvements will extend approximately 31’ onto the private property with a public access easement. New right and left turn pockets are proposed along Commercial Street for access to the parking drive isles.
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Section view of Commercial Street looking east towards Industrial Road During the second phase of development, the applicant proposes to improve the entirety of Pulgas Creek. The creek improvements include removing invasive plant species, widening the creek bed, and improving both sides of the creek banks (including off-site). The Applicant will also provide a public access easement across the bridge connecting to the 1030 Brittan Avenue property.
The improvements along Old County Road will be completed during the final phase of development including completing the East Side connect sidewalk, landscape and lighting improvements, and installing a new two-way cycle track along the west side of Old County Road consistent with the Bike and Pedestrian Master Plan.
Community Benefits: The City Council Subcommittee met on eight occasions to review and provide staff direction on the iterations of the developer’s offer of community benefits.
The total value of the community benefits, not including the items listed above, is $50.3 million, and includes the following:
• Fiscal contribution of $43,050,000
• Credit for off-site creek improvements – valued at $2,850,000 • Creekside trail credit of $2,000,000
• Credit for the formation of a Transportation Management Association (TMA) – valued at $100,000. The project is also required to participate in the TMA once formed. • On-site art credit of $300,000
• Credit for previous contribution of $2,000,000 to the San Carlos Elementary School District. The contribution was made during a critical period when the District was facing dire financial circumstances.
In addition to the community benefits listed above, the developer has offered the following without assigning a community benefit value:
• On-site landscaped and open spaces will be publicly accessible
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• City/non-profit group use of the amenity building at no cost 12 times per year, and an additional six times per year at reduced rate
• Cafe/restaurant open to the public
• Sixty publicly accessible parking spaces on nights and weekends • Public access easement across bridge connecting to public access easement at 1030 Brittan Avenue site
• Installation of purple pipe for recycled/reclaimed water and landscaping • Installation of solar on parking structures
The details of the community benefits are included in Article 2 of the Development Agreement.
The developer is requesting a 15-year term on the Development Agreement, vesting City laws and impact fee provisions. As the Transportation Impact Fee (TIF) will be updated soon, the applicant has agreed to pay the TIF in effect at the time the building permit is issued, in an amount not to exceed 1.5x the current fee. The final impact fee amounts will be determined at building permit submittal based on the building square footage. Impact fees are required to be paid at building permit issuance.
The Applicant has offered to make the payment of the community benefits contribution prior to issuance of a building permit on each of the life science buildings. This provides payment of the community benefit contribution approximately two years sooner for each phase than projects which are required to pay upon issuance of a certificate of occupancy. The Development Agreement also requires the Applicant designate the property as the place of sale for construction materials to ensure the sales tax is distributed directly to the City.
The Applicant will also be required to pay City impact fees based on the fee amount in effect at the time the Development Agreement is approved with code established escalators, except for the TIF as outlined above.
Based on the proposed plans, the impact fees by phase are estimated as follows:
Impact Fee Estimate Phase 1 Phase 2 Phase 3 Total
Traffic Impact* $5,651,161 $5,651,161 $5,651,161 $16,953,483 Commercial Linkage $18,197,340 $18,197,340 $18,197,340 $54,592,020 Child Care $4,549,335 $4,549,335 $4,549,335 $13,648,005 Sewer $1,518,720 $1,518,720 $1,518,720 $4,556,160
Total per Phase $29,916,556 $29,916,556 $29,916,556 $89,749,668 *Based on current TIF fee amount
The Project will also provide substantial fiscal benefit to the City with the increase in property and sales tax. It is estimated that upon project buildout, the City will receive $3,500,000 per year in additional property and sales tax revenue.
Other Reviewing Agencies: The C/CAG Board, at its February 13, 2025 meeting, determined the project to be consistent with the Airport Land Use Compatibility Plan for the San Carlos Airport.
The Project, as proposed, is consistent with the Airport Plan, would not exceed obstruction standards, and would not be a hazard to air navigation. The C/CAG Board’s determination was
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conditioned upon the agreement that any future childcare use at the site would require a conditional use permit. The Planned Development Ordinance is consistent with this request. The Applicant is required to file additional information with the FAA within five days of construction, reaching its greatest height.
ENVIRONMENTAL REVIEW
The City has undertaken an environmental review of the Project as required by the California Environmental Quality Act (CEQA). The potential for the Project to result in environmental impacts was assessed in an Environmental Impact Report (EIR) addressing all environmental topics under CEQA per section 15063 of the CEQA Guidelines. Technical analysis supported conclusions in the EIR.
A Notice of Preparation (NOP) was issued in June 2021 to solicit comments from public agencies and the public regarding the scope of the environmental evaluation of the proposed project. The NOP and all written responses to the NOP were presented in Appendix A of the Draft EIR and comments were taken into consideration during the preparation of the Draft EIR. The Draft EIR reviewed the project as submitted in 2020, with the revisions submitted in 2023. The project at that time included a slightly different building configuration; similar heights and floor area as the current application; and specified the first phase to include Building 6 at the southeast corner of Commercial Street and Old County Road and Building 4 and parking structure 1 located along Old County Road. The Draft EIR also evaluated an option for future childcare use in the amenity building proposed in the center of the campus.
The Applicant submitted revised plans on September 9, 2024, in response to staff comments related to the publicly accessible open spaces and building orientations. The revised plans shifted the first planned phase of development from the Old County Road side of the site to the Industrial Road/Commercial Street side of the site. This allows the occupants of the first phase of development to utilize the existing amenities at the 825/835 Industrial Road building. The Final EIR incorporates the Project revisions and response to public comments.
Based on the analyses, the EIR concluded that, with implementation of standard conditions of approval and mitigation measures identified in the EIR, the project would not result in any significant environmental impacts.
Potentially Significant Impacts Requiring Mitigation
The analysis found some impacts that could potentially be significant without mitigation. They are included in the EIR and summarized below with the proposed mitigation measures:
Air Quality, Construction Emissions Mitigation Measures: Construction of the Project would result in short-term construction emissions.
• Require construction equipment to follow Bay Area Air Quality Management District (BAAQMD) “Basic Best Management Practices” and use construction equipment that has low diesel particulate matter exhaust.
• To reduce operational emissions, the Project is required to use super-compliant volatile organic compound coatings (interior and exterior paints/coatings).
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Biological Impact Mitigation Measures: The Applicant is required to:
• Conduct a pre-construction nesting bird survey for any trees to be removed • Follow measures to protect Pulgas Creek from construction debris and runoff • Submit a dewatering and diversion plan prior to any creek work and following requirements of regulatory agencies
• Follow regulatory agency requirements to ensure no net loss of ecological conditions in the bed and bank of Pulgas Creek
Cultural Resources Impact Mitigation Measures: There are no known cultural resources, however, Project construction may disturb unknown buried archaeological or tribal cultural resources.
• Require archaeological awareness and sensitivity training prior to the start of construction and prior to ground disturbance.
• In the event archaeological or tribal cultural resources are unearthed during construction, all resources shall be evaluated by a qualified professional archaeologist who will prepare an appropriate treatment plan for the resources.
• If any fossils or fossil-bearing deposits are discovered, a paleontologist shall be consulted to evaluate the resource and prepare an appropriate plan.
Hazardous Materials Mitigation Measures:
• The Applicant shall demonstrate compliance with agency requirements under the Groundwater Remedial Action Plan related to known contamination in the soil, groundwater, and vapor prior to start of construction for the former Kelly Moore portion of the project site. • For areas of the site not included in the Groundwater Remedial Action Plan, the Applicant shall follow requirements of the California Regional Water Quality Control Board and soil imported onto the site shall be tested.
• The Applicant is also required to abate any lead-based paint, mercury, polychlorinated biphenyl caulk, and asbestos prior to building demolition.
Transportation Mitigation Measures: The Applicant is required to implement a TDM plan achieving 20% trip reduction and submit an annual monitoring report to the City. If the trip reduction targets are not met, the applicant shall implement TDM Plan modifications to ensure targets are achieved.
With implementation of the mitigation measures and standard conditions of approval, the Project will not result in a significant impact on the environment.
Transportation Impact Analysis: A complete Transportation Impact Analysis (TIA) has been completed to determine if there are any safety issues under CEQA or non-CEQA impacts that should be addressed.
The analysis concludes that there will not be any new significant impacts to intersections as a result of the Project. Some of the study intersections are already operating at levels considered unacceptable and/or are projected to operate at unacceptable levels under cumulative conditions; however, the contribution of the proposed project traffic to these intersections would not be significant per the City General Plan standards and C/CAG standards. The Applicant will be
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required to pay the Transportation Impact Fee that will be utilized by the City for traffic improvements.
Circulation and Comment Period: The Draft EIR was available for a 60-day public review and comment from July 25, 2024 through September 23, 2024. Notice of the availability of the Draft EIR was circulated to state and local agencies as required by CEQA Guidelines and property owners and occupants within 300’ of the site. Comments were received from three agencies, CalTrans, Department of Toxic Substance Control (DTCS), and PG&E, and two individuals provided comments. The PTC conducted a hearing at its August 13, 2024 meeting to review and receive comments on the Draft EIR. Responses to all comments received, including Commissioner comments, are included in Chapter 23 of the Final EIR.
ANALYSIS:
A complete list and analysis of the required findings for the Planned Development Zoning, Planned Development Plan, and Development Agreement are included as attachments to the respective Ordinances.
Consistency with the General Plan: The subject site has General Plan land use designation of Planned Industrial which permits research and development (R&D), biotech, light industrial, flex, warehousing, and related uses. The project is consistent with General Plan policies to encourage new commercial development to expand the City’s tax base and to support the expansion of key growth industrials (Attachment 8).
Consistency with the East Side Innovation District Vision Plan: The Project is also consistent with the following principles from the East Side Innovation District Vision Plan as it:
• Improves Commercial Street with a dedicated bike lane, allée of trees, sidewalk, landscape strip, lights, and street furniture
• Includes the Discovery Path in a north/south direction central through the campus • Improves the entirety of Pulgas Creek with a muti-modal trail and flood mitigation • Implements the East Side connect with street trees, sidewalks and lighting along Old County Road and a new two-way cycle track implementing the Bike and Pedestrian Master Plan • Support Distinct District Subareas: new buildings should enhance the character of the street and embody a superior quality of architecture and urban design • Improves the Old County and Commercial Street intersection with a new traffic signal • Includes a publicly accessible plaza space along Commercial Street with landscaping and seating and provides a publicly accessible cafe
• Promotes environmental stewardship by encouraging alternative transportation, all-electric building, designed to be purple pipe ready and includes roof top solar panels • Contribution towards community benefits
Planned Development Zoning District and Planned Development Plan The Developer has requested rezoning the subject site from Heavy Industrial (IH) to Planned Development (PD) Zoning District in accordance with SCMC Chapters 18.10, Planned Development District, and 18.36, Planned Development. The rezoning requires City Council approval, with the PTC as the recommending body for the action.
The proposed Project complies with all development standards and supplemental regulations of
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the IH Zoning District except for height and floor area. The Project complies with setback requirements, landscaping, creek setbacks, and parking requirements. The Applicant is requesting the following Planned Development zoning standard adjustments:
1. Height: Exceed the maximum height of 50’ allowed the IH District. The Applicant proposes six new life science buildings, ranging in height from five stories at 82’ to roofline and 100’ to mechanical street to seven stories at 114’ to roof line and 132’ at the mechanical screen.
2. Floor Area: Exceed the maximum site floor area ratio of 1.0. The Applicant proposes total building square footage of 2,409,119 square feet resulting in a floor area ratio (FAR) of
2.18. This includes the usable research and development building square footage of 1,603,879 square feet, amenity building area of 24,689 square feet and the above grade parking structure building area of 780,550 square feet.
When considering the usable research and development building area of 1,603,879 square feet, the resulting FAR would be 1.43.
3. Use: All uses as allowed in the Heaving Industrial (IH) zoning district would govern the permitted and conditional uses at the site. All future tenants will be required to comply with the biosafety regulations in effect at the time a business registration or building permit is issued for tenant lab space. A Conditional Use Permit is required for any future childcare use.
4. Master Sign Program: Tenant signage is limited to no more than 150 square feet per sign and no more than two signs per building façade.
5. Parking: Establish a maximum parking ratio of 2 parking spaces per 1,000 square feet of floor area, excluding designated public parking. This parking ratio is consistent with the TDM requirements.
In considering whether to adopt the Planned Development Zoning designation and Planned Development Plan including the Master Sign Program, the City Council must consider the findings as outlined in Attachment 2, Exhibit C.
Development Agreement
A Development Agreement is proposed with the project as provided for in state law and Municipal Code Chapter 18.37. The Development Agreement outlines a project description including community benefits and developer (Applicant) obligations. The Applicant is offering community benefits totaling $50,300,000 in contributions and value of on and off-site improvements. The City Council will determine the ultimate use of the community benefit funds. To approve a Development Agreement, the City Council is required to find that the Development Agreement is consistent with the General Plan. As outlined above, and included as Attachment 3, Exhibit A, the Project and the contributions of community benefits are consistent with the General Plan as well as the guiding principles of the East Side Innovation District Vision Plan.
PUBLIC OUTREACH
The required public notice was mailed to all property owners within 300’ of the sites and published in the newspaper on April 29, 2025.
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Commentors on the Draft EIR were provided notice of availability of the Final EIR on February 19, 2025.
One comment letter has been received from the Greater East San Carlos Board dated March 9, 2025. The commentor expressed concern with contamination at the site and cleanup, noise, and air pollution during construction and additional traffic. The comment letter, with response to each comment, is included in Attachment 7.
ALTERNATIVES:
The alternatives available to the City Council include:
1. Adopt a Resolution certifying the Environmental Impact Report (EIR) and adopting the associated CEQA findings of fact and Mitigation Monitoring and Reporting Program; introduce an Ordinance amending the zoning map to change the site from IH – Heavy Industrial Zoning District to PD - Planned Development Zoning District; and approving the associated Planned Development Plan and Master Sign Program; and introduce an Ordinance approving a Development Agreement with Alexandria Real Estate Equities.
2. Do not proceed with the proposed Resolution and Ordinances; or
3. Provide staff with alternative direction.
Respectfully submitted by:
Al Savay, Community Development Director
Approved for submission by:
_______________________
Jeff Maltbie, City Manager
ATTACHMENT(S):
1. Resolution certifying the EIR and MMRP
Exhibit A: Links to Draft EIR (dated July 2024) and Final EIR (dated February 2025) Hard copies are available for inspection at City Hall, at the Library and upon request Exhibit B: MMRP
Exhibit C: Findings
2. Ordinance - Planned Development (PD) Zoning District Exhibit A: Zoning Map
Exhibit B: Planned Development Plan
Exhibit C: Findings
3. Ordinance approving the Development Agreement
Exhibit A: Findings
Exhibit B: Development Agreement
4. Code Compliance Certificate- PTC Approved
5. Phase 1 Submittal Plans
6. Applicant Letter of Request
7. Public Hearing Notice
8. Greater East San Carlos Board March 9, 2025 Comments with City and Applicant Responses
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1 RESOLUTION NO. 2025-___
A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF SAN CARLOS
CERTIFYING THE FINAL ENVIRONMENTAL IMPACT REPORT AND ADOPTING THE CEQA
FINDINGS OF FACT AND MITIGATION MONITORING AND REPORTING PROGRAM FOR THE ALEXANDRIA CENTER FOR LIFE SCIENCE PROJECT AT 900 AND 960 INDUSTRIAL ROAD; 961- 967, 987, 1003, 1011, 1015, 1057 AND 1075 COMMERCIAL STREET; AND 915, 921, 1015, 1055 AND 1063 OLD COUNTY ROAD (APNs 046-162-010, 046-162-210, 046-162- 270, 046-162-280, 046-162-290, 046-184-090, 046-184-110, 046-184-120, 046-184-280, 046-184-290 and 046-184-300).
WHEREAS, the Applicant, Alexandria Real Estate Equities, Inc. (“Applicant”), submitted an application on March 3, 2020 (as updated and most recently resubmitted on March 12, 2025) for approval of a Planned Development Zoning Map Amendment, Planned Development Plan, a Development Agreement, Tentative Parcel Map, Transportation Demand Management Plan, Tree Removal, Grading and Dirt Haul, Sign Program, and Design Review for the development of the Alexandria Center for Life Sciences campus project on an approximately 25.34 acre site located at 900 and 960 Industrial Road; 961- 967, 987, 1003, 1011, 1015, 1057 AND 1075 Commercial Street; and 915, 921, 1015, 1055 and 1063 Old County Road, in the City of San Carlos (the “Project”); and
WHEREAS, the Project comprises the development six new life science office/research and development buildings, two parking structures, two amenity buildings, associated landscape and on and off-site improvements; and
WHEREAS, on June 28, 2021, the City issued a Notice of Preparation (NOP) for the Alexandria Center for Life Science Project Environmental Impact Report (EIR) and on July 19, 2021, the Planning and Transportation Commission (Commission) held a public scoping session for the EIR that served as a forum for the Commission and members of the public to comment on the NOP, to learn about the Project and discuss environmental issues that should be addressed in the EIR; and
WHEREAS, the City determined that the Project required preparation of an EIR, pursuant to the requirements of the California Environmental Quality Act (Public Resources Code Section 21000 et seq.; hereafter, CEQA), and the Guidelines for Implementation of the California Environmental Quality Act (Title 14, Sections 15000 et seq. of the California Code of Regulations hereafter, CEQA Guidelines), and the City prepared an EIR to evaluate the potential environmental impacts associated with the Project, pursuant to the requirements of the CEQA and the CEQA Guidelines; and
WHEREAS, the Draft EIR was published and circulated for public review and comment beginning on July 25, 2024 through September 23, 2024. The Draft EIR was filed with the State Office of Planning & Research under State Clearinghouse No. 2021060668; and WHEREAS, on August 13, 2024, the Commission held a duly noticed public hearing to receive public comment on the Draft EIR; and
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2 WHEREAS, the City prepared written responses to the comments received during the public review and comment period and included these responses in Chapter 24, Response to Comments, prepared an assessment of the revised project in Chapter 22 and completed revisions to the Draft EIR in Chapter 23 of the Final EIR, which, together with the Draft EIR, constitutes the Final EIR, and also prepared a Mitigation Monitoring and Reporting Program (MMRP) pursuant to the requirements of CEQA and the CEQA Guidelines; and
WHEREAS, on April 21, 2025, the Commission held a duly noticed public hearing and adopted Resolution PTC 2025-03 recommending the City Council certify the Final EIR and adopt the Mitigation Monitoring and Reporting Program along with the Project entitlements; and WHEREAS, the City mailed a public hearing notice for the Project on April 29, 2025, to property owners and occupants within a 300-foot radius of the Project site, published the public hearing notice on April 29, 2025, and made reference to the fact that the Final EIR was available for public review per Section 15073 of the CEQA Guidelines; and WHEREAS, the City Council conducted a public hearing on May 12, 2025, and reviewed all evidence presented both orally and in writing and considered in light of public comments and testimony the information in the Final EIR, for adequacy, completeness and compliance with CEQA and State CEQA Guidelines; and
WHEREAS, CEQA requires that the lead agency approving a project adopt a Mitigation Monitoring and Reporting Program for changes to the project to ensure compliance during project implementation.
NOW, THEREFORE, BE IT RESOLVED that the City Council of the City of San Carlos hereby certifies the Final EIR based on the following:
Section 1. The City Council, having independently heard, considered, and weighed all the evidence in the record, finds that the above recitals are accurate and constitute findings in this matter and, together with the staff report and the application materials, including without limitation the Final EIR, Project plans and all other documents, reports, studies, memoranda, maps, oral and written testimony, and materials in the City’s file for the applications and the Project, and all adopted City planning documents relating to the Project and the Project site including the City’s General Plan, Municipal Code, Zoning Ordinance, and other applicable City laws and regulations, and all associated approved and certified environmental documents, have together served as an adequate and appropriate evidentiary basis for the findings and actions set forth in this Resolution and are hereby incorporated by reference.
Section 2. CEQA. The City Council, having fully reviewed, considered, and evaluated all of the testimony and evidence submitted in this matter, finds:
a. The City of San Carlos is the lead agency under CEQA for preparing the Final EIR and is the entity with final decision-making authority with regard to approval of the proposed Project.
b. The Final EIR has been completed in compliance with CEQA (Public Resources Code Section 21000 et seq.) and the CEQA Guidelines (Title 14, Section 15000 et
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3 seq., of the California Code of Regulations) and the applicable provisions of the San Carlos Municipal Code.
c. The Final EIR was presented to the City Council, which has reviewed and considered the information contained in the Final EIR prior to approving the Project.
d. The Final EIR reflects the City’s independent judgment and analysis and has been found by the City to be adequate to support the City’s consideration of the Project entitlements.
e. The information added in the Final EIR does not constitute new significant information requiring recirculation of the EIR.
Having fully reviewed, considered, and evaluated all of the testimony and evidence submitted in this matter and based on its independent judgment and analysis, the City Council hereby certifies the Final EIR (Exhibit A) and adopts the MMRP (Exhibit B), both of which are on file in the Office of the City Clerk of the City of San Carlos and incorporated herein by this reference. The City Council, based on its independent judgment and analysis and pursuant to Section 15092 of the CEQA Guidelines, also adopts the CEQA Findings of Fact attached hereto and incorporated herein as Exhibit C.
The Community Development Director is designated as the custodian of the documents and records of proceedings on which this decision is based. The Community Development Director's office is located at City Hall, 600 Elm Street, San Carlos, California.
Section 3. Severability. If any term, provision, or portion of this resolution or the application of this resolution to a particular situation is held by a court to be invalid, void, or unenforceable, the remaining provisions of this resolution, or their application to other actions related to the Project, shall continue in full force and effect unless amended or modified by the City.
Section 4. This Resolution is effective upon its adoption. *****
I, City Clerk Crystal Mui, hereby certify that the foregoing Resolution was duly and regularly passed and adopted by the City Council of the City of San Carlos at a scheduled meeting thereof held on the 12th day of May, 2025, by the following vote:
________________________________
CITY CLERK of the City of San Carlos
AYES, COUNCILMEMBERS:
NOES, COUNCILMEMBERS:
ABSENT, COUNCILMEMBERS:
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4 APPROVED:
___________________________
MAYOR of the City of San Carlos
Exhibits:
A. Draft EIR (dated July 2024) and Final EIR (dated February 2025) with Technical Appendices and Documents
B. Mitigation Monitoring and Reporting Program (MMRP)
C. Findings of Fact
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5 Exhibit A
Draft EIR (dated July 2024) and Final EIR (dated February 2025), with Technical Appendices and Documents:
• Appendix A - Notice of Preparation/Initial Study
• Appendix B - Air Quality and Greenhouse Gas Assessment • Appendix C - Biological Letter Report
• Appendix D - Historical Resource Evaluations
• Appendix E - Energy Calculations
• Appendix F - Pulgas Creek Flooding: Proposed Mitigated Project • Appendix G - Noise and Vibration Assessment
• Appendix H - CEQA Transportation Analysis
• Appendix I - Water Supply Assessment
• Appendix J - Pulgas Creek Design
• Appendix K - Updated Flooding
• Avian Collision Risk Assessment
• Site Plan Submittal - Response 1
Available at: https://www.cityofsancarlos.org/business_detail_T10_R63.php
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ALEXANDRIA CENTER FOR LIFE SCIENCE PROJECT – SC/MMRP PAGE 1 OF 24 RESOLUTION OF THE CITY COUNCIL NO. 2025- :
EXHIBIT “B ”
STANDARD CONDITIONS AND MITIGATION MONITORING AND REPORTING PROGRAM
FOR THE ALEXANDRIA CENTER FOR LIFE SCIENCE PROJECT
Verification
Standard Condition Timing1 / Schedule Implementation
Responsibility Monitoring Action Monitoring
Responsibility
Date
Completed
Standard Condition: Exterior Materials. Pursuant to
San Carlos Municipal Code Chapter 18.29, the colors
and materials of the structure and improvements shall
be in substantial compliance with those presented
and described within the application materials. Any
changes determined to be significant as determined
by the Community Development Director shall be
reviewed and approved by the Planning Commission.
Prior to issuance of
building permits
Applicant Verify inclusion of
requirements in planning
documents
San Carlos
Planning Division
Standard Condition: Exterior Lighting Plan. Pursuant
to San Carlos Municipal Code Chapter 18.29, a final
exterior lighting plan with specifications in
conformance with the approved plans is subject to
review and approval by the Planning Division prior to
Building Permit issuance.
Prior to issuance of
building permits
Applicant Verify inclusion of
requirements in planning
documents
San Carlos
Planning Division
Standard Condition: Signage. New signs are subject to
compliance with San Carlos Municipal Code Chapter
18.22. No signs have yet been approved as part of this
project. Any signs that are visible from U.S. Highway
101 shall require approval by the Planning
Commission.
Prior to new sign
erection
Applicant Verify any signs are in
compliance
San Carlos
Planning Division
1 Standard conditions and mitigation measures must be complied with separately for each project phase.
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Standard Condition: Protection of Trees. Pursuant to
San Carlos Municipal Code Sections 18.18.070 and
18.41.020, the project proponent shall obtain a
permit to remove any tree(s) protected under the
City’s Interim Protected Tree Ordinance, as
determined by an arborist, and shall also prepare a
tree protection plan that includes a map of the tree
protection zone and is included in the construction
drawings and bid package. Removed trees will be
replaced in accordance with the ordinance at the
discretion of the Community Development Director. If
any removed trees are within the jurisdiction of
California Department of Fish and Wildlife (CDFW),
and CDFW issues a Lake and Streambed Agreement
for the project, the tree replacement ratios shall
comply with CDFW requirements.
Prior to issuance of
building permits
Applicant Verify inclusion of
requirements in
construction documents
San Carlos
Building Division
Standard Condition: Protection of Human Remains. If
human remains are unearthed during grounddisturbing activities, Section 7050.5(b) and (c) of the California Health and Safety code will be
implemented. Section 7050.5(b) and (c) states:
(b) In the event of discovery or recognition of any
human remains in any location other than a
dedicated cemetery, there shall be no further
excavation or disturbance of the site or any
nearby area reasonably suspected to overlie
adjacent remains until the coroner of the county
in which the human remains are discovered has
determined, in accordance with Chapter 10
(commencing with Section 27460) of Part 3 of
Division 2 of Title 3 of the Government Code, that
the remains are not subject to the provisions of
Section 27492 of the Government Code or any
Prior to and during
construction activities
involving ground
disturbance
Applicant Verify inclusion of
requirements in
construction documents
San Carlos
Building Division
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other related provisions of law concerning
investigation of the circumstances, manner and
cause of death, and the recommendations
concerning treatment and disposition of the
human remains have been made to the person
responsible for the excavation, or to his or her
authorized representative, in the manner provided
in Section 5097.98 of the PRC. The coroner shall
make his or her determination within two working
days from the time the person responsible for the
excavation, or his or her authorized
representative, notifies the coroner of the
discovery or recognition of the human remains.
(c) If the coroner determines that the remains are not
subject to his or her authority and if the coroner
recognizes the human remains to be those of a
Native American, or has reason to believe that
they are those of a Native American, he or she
shall contact, by telephone within 24 hours, the
NAHC. [In which case, section 5097.98 of the
California PRC would apply.]
Standard Condition: Compliance with Design-level
Geotechnical Investigation and Structural Design
Plans. Consistent with plan check procedures for
Building Permit consideration and Section 12.80.060
of the San Carlos Municipal Code, proper foundation
engineering and construction shall be performed in
accordance with the recommendations of a
Registered Geotechnical Engineer and a Licensed
Professional Engineer. The structural engineering
design, with supporting Geotechnical Investigation,
shall incorporate seismic parameters compliant with
the California Building Code.
Prior to issuance of
building permits
Applicant Verification that design
requirements are met and
reviewed by qualified
professional
San Carlos
Building Division
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Standard Condition: Stormwater Control Plan. A
stormwater and drainage control plan shall be
prepared and implemented in compliance with the
San Mateo Countywide Water Pollution Prevention
Program (SMCWPPP), Provision C.3 of the County’s
Municipal Regional Stormwater NPDES Permit and
any other required provisions of the City of San Carlos Municipal Code. The plan shall specify best
management practices for the control and prevention
of stormwater pollution. The plan shall address both
construction-phase and post-construction pollutant
impacts from development.
Construction-phase measures shall include: erosion
control measures such as installing fiber rolls, silt
fences, gravel bags, or other erosion control devices
around and/or downslope of work areas and around
storm drains prior to earthwork and before the onset
of any anticipated storm events; monitoring and
maintaining all erosion and sediment control devices;
designating a location away from storm drains when
refueling or maintaining equipment; scheduling
grading and excavation during dry weather; and
removing vegetation only when absolutely necessary.
Post-construction drainage controls shall be specified
to capture and treat stormwater onsite.
Prior to issuance of
building permits
Applicant Verify inclusion of
requirements in planning
documents
San Carlos
Planning Division
Standard Condition: Construction Noise.
Construction Activities shall comply with the City’s
noise ordinance (Chapter 9.30 of the San Carlo
Municipal Code), which includes restriction of
construction activities to the hours of 8:00 AM to 5:00 PM on weekdays, and 9:00 AM to 5:00 PM on
Saturdays.
Prior to issuance of
demolition, building
or grading permits
Applicant Verify inclusion of
requirements in
construction documents
San Carlos
Building Division
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Standard Condition: Transportation Demand
Management (TDM). Pursuant to Chapter 18.25 of
the City of San Carlos Municipal Code and San Mateo
County Congestion Management Program Land Use
Implementation Policy (C/CAG TDM Policy), a
Transportation Demand Management Plan shall be
implemented for the life of the project as presented
to and approved by the Planning and Transportation
Commission. The owner and/or future tenants shall
be responsible for supplying Planning Staff with the
contact information for the Designated TDM Contact
person.
A report documenting the TDM activities undertaken
and their results shall be submitted to the Community
Development Director annually at the responsibility of
the applicant. The Director may impose reasonable
changes to assure the program’s objectives will be
met. The owner and/or future tenants shall be
responsible for ensuring that C/CAG TDM Policy
requirements and monitoring and reporting are met.
As new, more efficient and effective TDM measures
become available to reduce vehicle trips, these
measures may be included or substituted to maintain
the trip reduction levels described in the Plan. Any
such substitutions shall be to the satisfaction of the
Community Development Director. Any changes
determined to be substantive or inconsistent with the
TDM Plan by the Community Development Director
shall require review and approval by the Planning and
Transportation Commission.
A TDM Plan
applicable to the
space must be
approved by the City
prior to issuance of a
Certificate of
Occupancy for that
space
-andCompliance with the
TDM Plan would be
required Pursuant to
Chapter 18.25 of the
City of San Carlos
Municipal Code, to be
reported annually
Applicant Verify inclusion of
requirements in project
documents
San Carlos
Planning Division
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Air Quality
Mitigation Measure Air-2: Basic Construction
Management Practices. The project shall
demonstrate proposed compliance with all applicable
regulations and operating procedures prior to
issuance of demolition, building or grading permits,
including implementation of the following BAAQMD
“Basic Best Management Practices”:
• All exposed surfaces (e.g., parking areas, staging
areas, soil piles, graded areas, and unpaved access
roads) shall be watered two times per day.
• All haul trucks transporting soil, sand, or other
loose material off-site shall be covered.
• All visible mud or dirt track-out onto adjacent
public roads shall be removed using wet power
vacuum street sweepers at least once per day. The
use of dry power sweeping is prohibited.
• All vehicle speeds on unpaved roads shall be
limited to 15 miles per hour.
• All roadways, driveways, and sidewalks to be
paved shall be completed as soon as possible.
Building pads shall be laid as soon as possible after
grading unless seeding or soil binders are used.
• All excavation, grading, and/or demolition
activities shall be suspended when average wind
speeds exceed 20 mph.
Prior to issuance of
demolition, grading or
construction permits
-andDuring construction
Applicant Verify requirements are
included in construction
contracts and are met
during construction
San Carlos
Building Division
1 Standard conditions and mitigation measures must be complied with separately for each project phase.
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• All trucks and equipment, including their tires, shall be washed off prior to leaving the site.
• Unpaved roads providing access to sites located
100 feet or further from a paved road shall be
treated with a 6- to 12-inch layer of compacted
layer of wood chips, mulch, or gravel
• Publicly visible signs shall be posted with the
telephone number and name of the person to
contact at the City regarding dust complaints. This
person shall respond and take corrective action
within 48 hours. The Air District’s General Air
Pollution Complaints phone number shall also be
visible to ensure compliance with applicable
regulations.
Mitigation Measure Air-3: Require Use of SuperCompliant VOC Coatings to Reduce Operational ROG Emissions. The project shall use super-compliant
volatile organic compound (VOC, i.e., ROG) coatings
that are below current BAAQMD requirements (i.e.,
Regulation 8, Rule 3: Architectural Coatings last
amended in July 2009) for at least 90 percent of all
interior and exterior paints for the lifetime of the
project. At least 90 percent of coatings applied must
meet a “super-compliant VOC standard of less than 10
grams of VOC per liter of paint, which achieves the
required reduction. This mitigation measure applies to
90 percent of coatings since there may be some
special coatings required for certain aspects of the
project that cannot meet this requirement.
Prior to issuance of
building permit
-andPrior to first
certificate of
occupancy
Applicant Applicant shall provide a list
of coatings for City review to
ensure compliance at the
time of building permit.
-andInclusion of requirement for
reapplication of coatings in
deeds or tenant leases (as
applicable).
San Carlos
Building Division
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Mitigation Measure Air-4: Construction Period
Exhaust Emissions Reduction. The project shall use
construction equipment that has low diesel
particulate matter (DPM) exhaust to minimize cancer
risk and annual fine particulate matter (PM2.5)
concentrations, which shall include either A or B
below:
A. All construction equipment larger than 25
horsepower used at the site for more than two
continuous days or 20 hours total shall meet U.S.
EPA Tier 4 emission standards. In rare cases where
the use of Tier 4 equipment is not specifically
available, alternatively:
i. Use equipment that meets U.S. EPA emission
standards for Tier 3 engines and include
particulate matter emissions control equivalent
to CARB Level 3 verifiable diesel emission control
devices that altogether achieve a 70 percent
reduction in particulate matter exhaust in
comparison to uncontrolled equipment; and/or
ii. Use electrical or non-diesel fueled equipment.
B. Alternatively, the applicant can develop a plan that reduces on- and near-site diesel particulate matter
emissions by 70 percent or greater. Such a plan
would have to be supported by an air quality
analysis from a qualified air quality consultant and
reviewed and approved by the City
Prior to issuance of
demolition, grading or
construction permits
-andDuring construction
Applicant Verify requirements are
included in construction
contracts and are met
during construction
San Carlos
Building Division
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Biological Resources
Mitigation Measure Bio-1: Pre-Construction Nesting
Bird Survey. Initiation of construction activities during the avian nesting season (February 1 through August
31) shall be avoided to the extent feasible. If
construction initiation during the nesting season
cannot be avoided, pre-construction nesting bird
surveys for each construction phase shall be
conducted by a qualified biologist within 14 days
before initial ground disturbance or vegetation
removal for such construction phase to avoid
disturbance to active nests, eggs, and/or young of
nesting birds protected by the Migratory Bird Treaty
Act (MBTA) and California Fish & Game Code. Surveys
shall encompass the entire construction phase area
and the surrounding 100 feet. An exclusion zone
where no construction would be allowed shall be
established around any active nests of any protected
avian species found in the project site until a qualified biologist has determined that all young have fledged
and are independent of the nest. Suggested exclusion
zone distances differ depending on species, location,
and placement of nest, and shall be at the discretion
of the biologist (typically 300 feet for raptors and 100 feet for other species). These surveys would remain
valid as long as construction activity is consistently
occurring in a given area and shall be completed again
if there is a lapse in construction activities of more
than 14 consecutive days during the nesting bird
season.
Prior to initiation of
construction activities
or re-initiation of
construction activities
if inactive for 30 days
or more
Applicant If construction is initiated or
re-initiated during nesting
season, verification of
survey and that any required
buffers are included in
construction documents
San Carlos
Building Division
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Mitigation Measure Bio-4a: Protect Pulgas Creek
from Construction Debris and Runoff. Applicant shall
implement the following measures to reduce
construction-related impacts to Pulgas Creek:
a. During construction above the top of bank, orange
construction fencing backed by silt fencing and
wildlife-friendly hay wattles (no monofilament
netting) shall be installed along the banks of Pulgas
Creek to prevent equipment from entering
protected areas and to prevent fuels, lubricants,
soils, de minimis fill, and other pollutants from
impacting Pulgas Creek.
b. Construction below the top of bank shall be
completed with equipment staged above the top of
bank to the greatest extent feasible. If operation of
small equipment below the top of bank is required,
that work shall be completed in a dewatered
condition and all construction debris and
equipment shall be removed from the channel
before returning flow to the dewatered area.
c. Pill control absorbent material, for use beneath
stationary equipment, shall be present on-site and
available at all times. Any hazardous chemical spills
shall be cleaned immediately.
d. All stockpiling of construction materials,
equipment, and supplies, including storage of
chemicals such as fuel, oil or other substances that
could adversely affect aquatic resources, shall occur
outside Pulgas Creek and surrounding riparian
areas. No equipment shall be washed where runoff
could enter the channel.
Prior to issuance of
grading or
construction permits
-andDuring construction
activities near or in
Pulgas Creek
Applicant Verify requirements are
included in construction
contracts and are met
during construction
San Carlos
Building Division
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e. All refueling and maintenance of equipment, other
than stationary equipment, shall occur outside the
channel’s top-of-bank.
f. All construction debris shall be gathered on a
regular basis and placed in a dumpster or other
container that is emptied or removed at least on a
weekly basis.
g. At the end of each workday, areas of the project
site that are under construction must be inspected,
cleaned and secured against potential erosion,
dumping, or discharge to the creek, street, gutter,
or storm drains.
h. The applicant shall comply with the NPDES General
Permit for Storm Water Discharges Associated with
Construction and Land Disturbance Activities
(Order No. 2022-0057-DWQ) adopted by the
SWRCB by preparing and implementing a
Stormwater Pollution Prevention Plan (SWPPP) in
compliance with the requirements of the General
Permit. The SWPPP must include best management
practices (BMPs) specific to project construction
and is subject to inspections by a Qualified
Stormwater Practitioner (as defined in Order No.
2022-0057-DWQ). BMPs aim to control degradation
of surface water by preventing soil erosion or
pollution discharge from the project area.
These requirements shall be superseded by any
conflicting and more stringent requirements set forth
in any Lake or Streambed Alteration Agreement,
Section 404 permit, or Section 401 water quality
certification issued for the project.
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Bio-4b: Implement a Dewatering and Diversion Plan.
The project applicant shall submit a Dewatering and
Diversion Plan for review and approval by the City
Engineer to mitigate impacts to Pulgas Creek during
dewatering, and shall implement the approved Plan.
The Plan shall comply, at a minimum, with the
following:
a. All dewatering and diversion activities shall comply with the requirements of all necessary regulatory
permits and authorizations from other agencies
(e.g., Regional Water Quality Control Board
[RWQCB], California Department of Fish and
Wildlife [CDFW], U.S. Fish and Wildlife Service
[USFWS], and Army Corps of Engineers [USACE]).
b. All native aquatic life (e.g., fish, amphibians, and turtles) within areas to be dewatered shall be
relocated by a qualified biologist prior to
dewatering, in accordance with applicable regional,
state, and federal requirements. The biologist shall
check daily for stranded aquatic life until the area is dewatered. All reasonable efforts shall be made to
capture and move all stranded aquatic life observed
in the dewatered areas. Capture methods may
include fish landing nets, dip nets, buckets, and by
hand. Captured aquatic life shall be released
immediately in the nearest appropriate
downstream site. This mitigation measure does not
authorize the take or disturbance of any state or
federally listed species unless the applicant obtains
a project-specific authorization from the CDFW
and/or the USFWS, as applicable.
c. If any temporary dam or other artificial obstruction is constructed to facilitate the proposed
Prior to issuance of
grading or
construction permits
-andDuring construction
activities near or in
Pulgas Creek
Applicant Verify requirements are
included in construction
contracts and are met
during construction
San Carlos
Building Division
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improvements, maintained, or placed in operation
within the stream channel, the applicant shall
ensure that sufficient water to maintain native
aquatic life below the temporary dam or other
artificial obstruction is allowed to pass down
channel at all times.
d. Construction and operation of
dewatering/diversion devices shall meet the
standards contained in the latest edition of the
Erosion and Sediment Control Field Manual
published by the RWQCB.
e. Coffer dams and/or water diversion system shall be
constructed of a non-erodible material that will
cause little or no siltation, such as encased
sandbags, gravel bags, or inflatable bladders. Coffer
dams and the water diversion system shall be
maintained in place and functional throughout
construction in the channel. If the coffer dams or
water diversion systems fail, they shall be repaired
immediately based on the recommendations of a
qualified civil engineer in consultation with a
qualified biologist. The devices shall be removed
after construction is complete and the site is
stabilized.
f. Water pumped from the dewatered area shall be
passed through a sediment settling device before
returning to the stream channel. Velocity
dissipation measures or devices are required at the
outfall to prevent erosion.
These requirements shall be superseded by any
conflicting and more stringent requirements set forth
in any LSAA, Rivers and Harbors Act Section 10
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authorization, Section 404 permit, or Section 401
water quality certification issued for the project.
Bio-4c: No Net Loss of Ecological Conditions. Prior to
any work in or on the bed or bank of Pulgas Creek, the
applicant shall submit to CDFW a Lake or Streambed
Alteration (LSA) notification pursuant to Fish and
Game Code section 1602. The Applicant shall comply
with all requirements of any LSAA issued for the
project, including any compensatory mitigation
requirements. If CDFW issues an LSAA for the project,
a copy of the fully executed LSAA shall be submitted
to the City prior to initiation of any work impacting
riparian habitats or Pulgas Creek.
For unavoidable placement of fill in jurisdictional
waters, Applicant shall ensure compliance with the
Porter-Cologne Water Quality Control Act, Section
404 of the CWA, and Rivers and Harbors Act Section
10, as applicable. Section 404 and Section 10
compliance may be accomplished by complying with
the terms of any applicable Nationwide Permit,
Regional General Permit, USACE-issued letter of
permission or an individual permit. Applicant shall
apply for a Section 401 water quality certification
(permit) and waste discharge requirements (as
applicable) from the San Francisco RWQCB as
necessary and shall comply with any conditions or
stipulations included in any Rivers and Harbors Act
Section 10, Section 404 and 401 permits and waste
discharge requirements and authorizations issued for
the project.
If work within Pulgas Creek results in a permanent net
loss of aquatic resources, the Applicant shall provide
Prior to issuance of
grading or
construction permits
-andDuring construction
activities near or in
Pulgas Creek
Applicant Verify requirements are
included in construction
contracts and are met
during construction
San Carlos
Building Division
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mitigation to offset this impact, either through (1) the creation, enhancement, or restoration of aquatic
resources onsite or off-site in an appropriate location or (2) through the purchase of mitigation credits from
a USACE, RWQCB, or CDFW approved mitigation bank.
The purchase of such credits shall serve as full
mitigation for impacts.
If project-specific creation, enhancement, or
restoration of aquatic resources is implemented,
these resources shall be restored, enhanced, or
created at a minimum ratio of 1:1 (compensation:
impact) on an acreage basis or such greater amount
as otherwise required by any state or federal
permitting agencies, and at a location approved by
the City or as otherwise required by any state or
federal permitting agencies. A qualified biologist shall develop a mitigation and monitoring plan that
includes the following components (or as otherwise
modified by regulatory agency permitting conditions):
• Summary of habitat impacts and mitigation acreage
requirements to meet the required mitigation ratio;
• Goal of the restoration to achieve no net loss of
habitat functions and values;
• Location of mitigation site(s) and description of
existing site conditions;
• Mitigation design:
o Existing and proposed site hydrology;
o Grading plan, if appropriate, including bank
stabilization or other site stabilization features;
o Planting plan;
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o Remedial measures and adaptive management;
and
• Monitoring plan, including success criteria,
monitoring methods, data analysis, reporting
requirements, and monitoring schedule. Success
criteria shall include quantifiable measurements of
riparian and aquatic vegetation type (e.g.,
dominance by natives), the appropriate extent for
the restoration location, and the provision of
ecological functions and values equal to or
exceeding those affected by the project. At a
minimum, success criteria shall include following:
o At Year 5 post-mitigation, total cover or
survivorship (as applicable based on mitigation
design) by planted native vegetation shall be at
least 75 percent.