January 2020
Tuesday, August 05, 2025 Reg CC MTG, Page *467
Local Assistance Procedures Manual Exhibit 16-T2
Materials Requiring a Certificate of Compliance per the Greenbook 20 Structural Steel Products 207-12.2.1 General (Materials) Specific language/info required on the COC. 21 Structural Aluminum Products 207-14.2.1 General (Materials) Specific language/info required on the COC. 22 PVC Pipe 207-17.4.1 General (Test Requirements)
23 PolyPropylene Pipe 207-25.6.1 General (Man. Facility Testing) 24 Materials used in Sewers 211-2 Chemical Resistance (Pickle Jar) Test Specific language/info required on the COC. 25 Viscometer Calibration 211-4.2 Calibration
26 Engineering Geosynthetics 213-1 General (Engineering Geosynthetics) Specific language/info required on the COC. 27 Traffic Paint, Thermo and Markers 214-2 Test Reports And Cert. of Compliance Specific language/info required on certified test reports OR COC
28 Precast Reinforced Concrete Box 216-8 Basis of Acceptance 29 Fiberglass Standards 700-3.3.4 Fiberglass Standards Specific language/info required on the COC and test reports. 30 Conductors for Series Circuits, 5000V 700-4.2.2 Conductors for Series Circuits 31 Conductors and Cable 700-5.3.1 General (Conductors and Cable) 32 Lamp Receptable Conductors 700-5.5.7 Electrical Components COC Required if required information is not marked on the insulation.
33 LED Signal Modules 700-5.5.11.8 Certificate of Compliance 34 LED Pedestrian Signal Module 700-5.6.6.7 Certificate of Compliance
January 2020
Tuesday, August 05, 2025 Reg CC MTG, Page *468
Division of Local Assistance, Office of Procedures Development and Training Quality Assurance Program (QAP) Manual for Use by Local Agencies ATTACHMENT – 4
MATERIALS CERTIFICATE
Tuesday, August 05, 2025 Reg CC MTG, Page *469
Local Assistance Procedures Manual Exhibit 17-G
Materials Certificate
Exhibit 17-G: Materials Certificate
MATERIALS CERTIFICATE
CITY/COUNTY LETTERHEAD
(Sample)
Date:
Federal-Aid Project Number:
Caltrans File Category 61:
Job Stamp:
Subject: Materials Certification
This is to certify that:
The results of the tests on acceptance samples indicate that the materials incorporated in the construction work and the construction operations controlled by sampling and testing were in conformity with the approved plans and specifications.
Exceptions to the plans and specifications are explained on the back of this memorandum (or on attached sheet).
No exceptions to the plans and specifications were found.
Signature of local agency engineer in responsible charge of project and title Distribution: (For all projects) 1) Local agency Project Files (original) 2) DLAE (1 copy in Report of Expenditures)
(For projects on the NHS) 3) FHWA (1 copy)
January 2022
N/A - Caltrans Use N/A - Caltrans Use
Tuesday, August 05, 2025 Reg CC MTG, Page *470
Division of Local Assistance, Office of Procedures Development and Training Quality Assurance Program (QAP) Manual for Use by Local Agencies ATTACHMENT - 5
Example of a Log Summary Sheet
Subgrade Materials
Date CT Station Elevation Test
Results
Minimum
Spec.
Passed
or Failed
Action
Taken
5/15/07 231 1+ 00 (30’ L) 99.00 93 90 or greater Passed N/A 5/16/07 231 1+ 50 (20’ R) 100.50 94 90 or greater Passed N/A 5/17/07 231 2+ 25 (25’ R) 101.00 96 90 or greater Passed N/A 5/18/07 231 1+ 50 (30’ L) 101.50 95 95 or greater Passed N/A 5/19/07 231 2+ 50 (20’ L) 102.00 92 * 95 or greater Failed See Note 1 5/19/07 231 2+ 50 (20’ L) 102.00 95 95 or greater Passed N/A CT 231 = Compaction (Nuclear Gage)
* Note 1: The Contractor used a water tank to dampen the soil surface at the failed subgrade location. Using a sheep’s foot compactor, he reworked the subgrade (making at least 10 passes) from Station 2+ 00 to Station 3+ 00. After approximately 30 minutes, another compaction test was taken. This time the relative compaction was 95.
Aggregates and Base Materials
Date CT Station Elevation Test ResultsMinimum
Spec.
Passed
or Failed
Action
Taken
6/20/07 202 1+ 00 (10’ R) 102.50 See data
sheet
See data sheet Passed N/A
6/20/07 202 2+ 00 (20’ L) 102.50 See data
sheet
See data sheet Passed N/A
6/22/07 217 1+ 00 (10’ R) 102.50 75 25 or greater Passed N/A 6/22/07 217 2+ 00 (20’ L) 102.50 83 25 or greater Passed N/A 6/20/07 227 1+ 00 (20’ R) 102.50 86 71 or greater Passed N/A 6/20/07 227 1+ 50 (20’ L) 102.50 85 71 or greater Passed N/A 6/24/07 231 2+ 00 (20’ R) 102.50 98 95 or greater Passed N/A 6/24/07 231 2+ 50 (20’ L) 102.50 97 95 or greater Passed N/A CT 202 = Sieve Analysis, CT 217 = Sand Equivalent, CT 227 = Cleanness Value, CT 231 = Compaction (Nuclear Gage)
Tuesday, August 05, 2025 Reg CC MTG, Page *471
Division of Local Assistance, Office of Procedures Development and Training Quality Assurance Program (QAP) Manual for Use by Local Agencies ATTACHMENT - 5
(continued)
Hot Mix Asphalt
Date CT Station Elevation Test
Results
Minimum
Spec.
Passed or
Failed
Action
Taken
7/10/07 339 1+ 00
(10’ R)
103.00 0.08 gal/
sq yd
0.05 -0.10
gal/sq yd
Passed N/A
7/10/07 366 2+ 00
(20’ L)
103.00 32 >23 Passed N/A
7/10/07 366 1+ 00
(10’ R)
103.00 41 >23 Passed N/A
7/10/07 375 2+ 00
(20’ L)
103.00 94 RC = 93 to
97 Passed N/A
7/15/07 375 1+ 00
(20’ R)
103.00 96 RC = 93 to
97 Passed N/A
7/15/07 375 1+ 50
(20’ L)
103.00 95 RC = 93 to
97 Passed N/A
CT 339 = Distributor Spread Rate, CT 366 =
Stabilometer Value CT 375 = In-Place Density & Relative Compaction
Portland Cement Concrete
Date CT Station Elevation Test
Results
Minimum
Spec.
Passed or
Failed
Action
Taken
9/25/07 504 10 + 50
(50’ R)
102.50 6.5% >6.0% Passed N/A
9/25/07 533 12 + 50
(50’ R)
102.50 1.5” <2” Passed N/A
9/25/07 518 11 + 50
(50’ R)
102.50 151 lb/cu ft > 145 lb/cu
ft
Passed N/A
9/25/07 521 10 + 50
(50’ R)
102.50 28 day =
4200 psi
>3800 psi Passed N/A
9/28/07 521 11 + 50
(50’ R)
102.50 28 day =
4290 psi
>3800 psi Passed N/A
9/30/07 521 12 + 50
(50’ R)
102.50 28 day =
4160 psi
>3800 psi Passed N/A
CT 504 = Air Content, CT 518 = Unit Weight, CT 521 = Compressive Strength, CT 533 = Ball Penetration
Tuesday, August 05, 2025 Reg CC MTG, Page *472
Division of Local Assistance, Office of Procedures Development and Training Quality Assurance Program (QAP) Manual for Use by Local Agencies ATTACHMENT - 6
(Exhibit 16-Z2)
Tuesday, August 05, 2025 Reg CC MTG, Page *473
APPENDIX VI
CERTIFICATION REGARDING LOBBYING
Tuesday, August 05, 2025 Reg CC MTG, Page *474
OMB Control No. 200-0020
Approval expires 04/0/2021
The public reporting and recordkeeping burden for this collection of information is estimated to average 15 minutes per response.
Send comments on the Agency's need for this information, the accuracy of the provided burden estimates, and any suggested methods for minimizing respondent burden, including through the use of automated collection techniques to the Director, Collection Strategies Division, U.S. Environmental Protection Agency (2822T), 1200 Pennsylvania Ave., NW, Washington, D.C. 20460. Include the OMB control number in any correspondence. Do not send the completed form to this address.
United States
ENVIRONMENTAL PROTECTION AGENCY
Washington, DC 20460
EPA Form 6600-06 (Rev. 06/2014) Previous editions are obsolete. ________________________________________________________________________________________________ _________________________________
EPA Project Control Number
CERTIFICATION REGARDING LOBBYING
CERTIFICATION FOR CONTRACTS, GRANTS,
LOANS AND COOPERATIVE AGREEMENTS
The undersigned certifies, to the best of his or her knowledge and belief, that:
(1) No Federal appropriated funds have been paid or will be paid, by or on behalf of the undersigned, to any person for influencing or attempting to influence an officer or employee of any agency, a Member of Congress, an officer or employee of Congress, or an employee of a Member of Congress in connection with the awarding of any Federal contract, the making of any Federal grant, the making of any Federal loan, the entering into of any cooperative agreement, and the extension, continuation, renewal, amendment, or modification of any Federal contract, grant, loan, or cooperative agreement.
(2) If any funds other than Federal appropriated funds have been paid or will be paid to any person for influencing or attempting to influence an officer or employee of any agency, a Member of Congress in connection with this Federal contract, grant, loan, or cooperative agreement, the undersigned shall complete and submit Standard Form-LLL, “Disclosure Form to Report Lobbying,” in accordance with its instructions. (3) The undersigned shall require that the language of this certification be included in the award documents for all sub-awards at all tiers (including sub-contracts, sub-grants, and contracts under grants, loans, and cooperative agreements) and that all sub-recipients shall certify and disclose accordingly.
This certification is a material representation of fact upon which reliance was placed when this transaction was made or entered into. Submission of this certification is a prerequisite for making or entering into this transaction imposed by section 1352, title 31 U.S. Code. Any person who fails to file the required certification shall be subject to a civil penalty of not less than $10,000 and not more than $100,000 for each such failure.
______________________________________________
Typed Name & Title of Authorized Representative
______________________________________________
Signature and Date of Authorized Representative
Tuesday, August 05, 2025 Reg CC MTG, Page *475
APPENDIX VII
CALTRANS CONSTRUCTION SITE BMP
FIELD MANUAL
Tuesday, August 05, 2025 Reg CC MTG, Page *476
State of California
Department of Transportation
Construction Site
Best Management Practice
(BMP)
Field Manual
and
Troubleshooting Guide
CTSW-RT-02-007
January 2003
Tuesday, August 05, 2025 Reg CC MTG, Page *477
Construction Site BMP Field Manual and Troubleshooting Guide
TABLE OF CONTENTS
PART I: INTRODUCTION ......................................................................................................1 Principles of Erosion and Sediment Control ........................................................................................... ......................................................................................... 1 Common Pollutants on the Construction Site 2
Monitoring and Inspection Program .......................................................................................................3 PART II: PROJECT OPERATIONS AND BMPS ..................................................................7 PART III: BMP IMPLEMENTATION AND TROUBLESHOOTING ................................11 TEMPORARY SOIL STABILIZATION ...........................................................................................11 SS-2 Preservation of Existing Vegetation .....................................................................................11 SS-3 Hydraulic Mulch ...................................................................................................................13 SS-4 Hydroseeding ........................................................................................................................15 SS-5 Soil Binders ..........................................................................................................................17 SS-6 Straw Mulch .........................................................................................................................19 SS-7 Geotextiles, Plastic Covers, Erosion Control Blankets & Mats ...........................................21 SS-8 Wood Mulching ....................................................................................................................24 SS-9 Earth Dikes, Drainage Swales & Ditches .............................................................................26 SS-10 Outlet Protection/Velocity Dissipation Devices ...................................................................28 SS-11 Slope Drains .........................................................................................................................30 TEMPORARY SEDIMENT CONTROL ...........................................................................................32 SC-1 Silt Fence ..............................................................................................................................32 SC-2 Desilting Basin .....................................................................................................................35 SC-3 Sediment Trap ......................................................................................................................37 SC-4 Check Dam ...........................................................................................................................39 SC-5 Fiber Rolls ............................................................................................................................41 SC-6 Gravel Bag Berm ..................................................................................................................43 SC-7 Street Sweeping and Vacuuming ..........................................................................................45 SC-8 Sandbag Barrier ....................................................................................................................47 SC-9 Straw Bale Barrier ................................................................................................................49 SC-10 Storm Drain Inlet Protection .................................................................................................51 WIND EROSION CONTROL .............................................................................................................53 WE-1 Wind Erosion Control...........................................................................................................53 TRACKING CONTROL ......................................................................................................................54 TC-1 Stabilized Construction Entrance/Exit ..................................................................................54 TC-2 Stabilized Construction Roadway.........................................................................................56 NON-STORM WATER MANAGEMENT .........................................................................................57 NS-1 Water Conservation ..............................................................................................................57 NS-2 Dewatering Operations .........................................................................................................59 NS-3 Paving and Grinding Operations ..........................................................................................61 NS-4 Temporary Stream Crossing .................................................................................................63 NS-5 Clear Water Diversion ..........................................................................................................65 NS-7 Potable Water/Irrigation .......................................................................................................67 NS-8 Vehicle and Equipment Cleaning .........................................................................................68 NS-9 Vehicle and Equipment Fueling ...........................................................................................70 NS-10 Vehicle and Equipment Maintenance ...................................................................................72 NS-11 Pile Driving Operations........................................................................................................74 NS-12 Concrete Curing ....................................................................................................................76 NS-13 Material and Equipment Use on Water ................................................................................77 i
Tuesday, August 05, 2025 Reg CC MTG, Page *478
Construction Site BMP Field Manual and Troubleshooting Guide NS-14 Concrete Finishing ................................................................................................................79 NS-15 Structure Demolition/removal Over or Adjacent to Water ...................................................81 NS-16 Temporary Batch Plants .......................................................................................................83 NS-17 Streambank Stabilization ......................................................................................................84 WASTE MANAGEMENT AND MATERIALS POLLUTION CONTROL ...................................85 WM-1 Material Delivery and Storage ..............................................................................................85 WM-2 Material Use .........................................................................................................................87 WM-3 Stockpile Management .........................................................................................................88 WM-4 Spill Prevention and Control ................................................................................................90 WM-5 Solid Waste Management .....................................................................................................92 WM-6 Hazardous Waste Management ............................................................................................94 WM-7 Contaminated Soil Management ..........................................................................................96 WM-8 Concrete Waste Management ...............................................................................................98 WM-9 Sanitary/Septic Waste Management ...................................................................................101 WM-10 Liquid Waste Management .................................................................................................103 PART IV: NOTES .....................................................................................................................104 District Construction Storm Water Coordinators................................................................................104 Caltrans Headquarters Environmental Website ..................................................................................104 Comments And Questions ..................................................................................................................104
LIST OF TABLES
Table 1 Storm Water BMPs for Construction Operations......................................................................7 ii
Tuesday, August 05, 2025 Reg CC MTG, Page *479
Introduction
PART I: INTRODUCTION
This document provides a toolbox for Caltrans field pe rsonnel to aid in proper implementation of water pollution control Best Management Practices (BMPs) on the construction site. The document is organized into the following parts:
• Part I: Introduction briefly presents (1) the principles of erosion and sediment control, (2) common storm water pollutants on the construction site , and (3) guidelines for implementing a proper monitoring and inspection program for the construc tion site, including the use of the Storm Water Pollution Prevention Plan (SWPPP) or Water Pollu tion Control Program (WPCP) to ensure an effective water pollution control program.
• Part II: Project Operations and BMPs identifies typical water pollution control challenges for specific construction operations and the BMPs th at are available to meet those challenges. • Part III: BMP Implementation and Troubleshooting provides guidance for installing, maintaining and troubleshooting selected BMPs from the Caltrans Storm Water Quality Handbooks, Construction S
PRINCIPLES OF EROSION AND SEDIMENT CONTROL
ite BMPs Manual.
The greatest water pollution threat from soil-disturbi ng activities is the introduction of sediment from the construction site into storm drain systems or natu ral receiving waters. Soil-disturbing activities such as clearing, grubbing, and earthwork increase the exposure of soils to wind, rain, and concentrated flows that cause erosion. A three-pronged approach is n ecessary to combat this storm water threat:
• Temporary soil stabilization practices reduce erosion associated with disturbed soil areas (DSAs). • Temporary run-on control practices prevent storm water flows (sheet and concentrated) from contacting DSAs.
• Temporary sediment control practices reduce sedimen t caused by erosion from entering a storm drain system or receiving water.
Soil stabilization BMPs reduce the erosive impact of rain on exposed soil. Run-on control practices reduce the erosive impacts by preventing storm water flows from contacting DSAs. Sediment control BMPs remove sediment from storm water by ponding a nd settling, and/or filtering prior to discharge offsite. It is imperative that soil stabilization and sediment control BMPs are implemented together to reduce the discharge of sediment from the construction site.
The following conditions on construction sites contri bute to erosion caused by storm water flows:
• Larger areas of impermeable structures and surfaces reduce natural infiltration resulting in increased storm water flow volume and velocity.
• Changes to surface flow patterns cause storm water flows to be more erosive. • Concentration of flows to areas that are not naturally subjected to such runoff volume increases erosion.
1 Tuesday, August 05, 2025 Reg CC MTG, Page *480
Introduction
Proper management of a construction project minimizes or prevents soil erosion and sediment discharges.
Good construction management for soil conservation requires an understanding of the following basic principles:
Soil Erosion Control – The First Line of Defense
Soil stabilization is a key component in the control of erosion. By stabilizing DSAs with covers or binders, the exposed soils are less likely to erode from the effects of wind or rain.
Prevent Storm Water Flows from Contacting DSAs – The Second Line of Defense Another key component in the control of erosion is the diversion of storm water flows around DSAs or the conveyance of flows through DSAs in a non-erosive manner.
Sediment Control – The Last Line of Defense
Storm water runoff may originate from active or inac tive DSAs whether or not proper erosion and/or run-on controls have been implemented. Impl ementing proper sediment control BMPs can reduce sediment amounts in storm water discharges.
Combine Soil Erosion and Sediment Control – Effective Protection An effective combination of soil erosion and sediment controls should be implemented to prevent sediment from leaving the site and/or entering a storm water drainage system or receiving water.
Soil stabilization and other erosion control BMPs ar e not 100 percent effective at preventing erosion.
Soil erosion control BMPs must be supported by sediment control BMPs to capture sediment on the construction site.
Sediment control BMPs alone are not 100 percent e ffective primarily due to their capacity limits. To be effective for storm water protection, the amount of sediment must be reduced at the source using soil erosion control BMPs, and then sediment contro l BMPs are used to further reduce the sediment that leaves the site or enters the storm drain system.
Inspection and Maintenance – Ensure Protect ion for the Duration of the Project Inspection and maintenance are required for all BMPs (soil stabilization, run-on control, and sediment control) to maintain effectiveness for reducing or eliminating the amount of sediment that leaves a site.
COMMON POLLUTANTS ON THE CONSTRUCTION SITE
There are a number of potential storm water pollutant s that are common to Caltrans construction sites.
The soil-disturbing nature of construction activities and the use of a wide range of construction materials and equipment are the sources of contaminants with the potential to pollute storm water discharges.
Common construction activities that increase the pot ential for polluting storm water with sediment include:
• Clearing and grubbing operations
• Demolition of existing structures
• Grading operations
• Soil importing and stockpiling operations
• Clear water diversions
• Landscaping operations
• Excavation operations
2 Tuesday, August 05, 2025 Reg CC MTG, Page *481
Introduction
Common construction materials with the potential to c ontribute pollutants, other than sediment, to storm water include the following:
• Vehicle fluids, including oil, grease, petroleum, and coolants • Asphalt concrete (AC) and Portland cemen t concrete (PCC) materials and wastes • Joint seal materials and concrete curing compounds
• Paints, solvents, and thinners
• Wood products
• Metals and plated products
• Fertilizers, herbicides, and pesticides
Construction-related waste must also be managed to prevent its introduction into storm water. Typical waste on construction sites includes:
• Used vehicle fluids and batteries
• Wastewater from vehicle cleaning operations
• Green waste from vegetation removal
• Non-storm water from dewatering operations
• Trash from materials packaging, employee lunch/meal breaks, etc. • Contaminated soils
• Slurries from sawing and grinding operations
• Wastewater/waste from concrete washout operations
• Hazardous materials waste
• Sanitary waste
MONITORING AND INSPECTION PROGRAM
The Resident Engineer is responsible for ensuring th at Caltrans personnel monitor the contractors water pollution control practices and maintain complian ce with the approved project SWPPP/WPCP. This includes reviewing the contractors SWPPP/WPCP, reviewing written inspection reports, and conducting field inspections. Caltrans Structures personnel should also be aware of the water pollution control requirements and participate in the monitoring program.
Step 1: Do Your Homework
a. Review the Storm Water Quality Handbooks: Construction Site BMPs Manual.
Caltrans personnel with storm water responsib ilities should familiarize themselves with BMP requirements. In particular, become familiar with (1) the rainy season dates for your geographical area, (2) the definitions of DSA, active DSA, and non-active DSA, and (3) the requirements for soil stabilization and sediment control BMPs for the season and specific Rainfall Area. b. Review the Project Plans.
Review the Project Plans in the context of stor m water pollution control. Visualize storm water run-on and runoff flow patterns when reviewing the plans. Review the general layout and existing drainage courses. Identify potential problem areas where storm water may run onto the site or discharge off site.
3 Tuesday, August 05, 2025 Reg CC MTG, Page *482
Introduction
Identify the locations where structures are being constructed or modified. Be familiar with the right-of-way and easement limits. Determine the limits of clearing and grubbing activities.
Identify the project phase or stage. Try to de termine DSAs and Environmentally Sensitive Areas (ESAs). Is the next phase going to include soil-disturbing activities and is it scheduled within the rainy season? Do the DSAs have provisions in the plans for permanent erosion control? Determine if permanent erosion control can be placed when activity in the DSA is complete. c. Review the Special Provisions
Review the Special Provisions for site-specifi c water pollution control requirements such as:
(1) permits for the construction project, (2) limits on active DSAs, (3) rainy season dates and requirements, (4) minimum BMP requirements, (5) BMP maintenance and inspection requirements, and (6) final erosion control requirements. Final erosion control requirements include (1) required products, (2) application process, (3) application rate, (4) seeding window, and (5) planting requirements.
The Special Provisions also include a section on water pollution control permits or requirements imposed on the project by other agencies. Typical agencies include the California Department of Fish and Game, Army Corps of Engineers, local flood control agencies, and others. There may be special requirements for water bodies or ESAs that need special water pollution control consideration.
Review the Special Provisions bid items related to water pollution control. There may be lump sums or unit prices for water pollution control items including SWPPP/WPCP preparation, permanent erosion control, and temporary erosion and sediment controls.
Review the Special Requirements section of the Sp ecial Provisions for site-specific activities such as: (1) dewatering, (2) sampling and analysis, (3) BMP maintenance cost allocation between Caltrans and the contractor, and (4) sanctions against the contractor in the event of noncompliance with the water pollution control requirements. d. Review the SWPPP/WPCP.
The SWPPP or WPCP for the project is the cont ractors plan to ensure conformance with Caltrans water pollution control requirement s on the construction site. The SWPPP/WPCP contains details about the BMPs to be used on the site, their locations, implementation timeframes, and inspection and maintenance sche dules. The contractor must comply with the approved SWPPP/WPCP. If conditions change on the construction site that impact storm water pollution controls, the contractor must amend the SWPPP/WPCP.
In the SWPPP, Section 200 contains the approval signature and lists any amendments. Section 300 describes unique features of the construction site and contains the construction and water pollution control schedules. Section 500 identifi es the BMPs selected for soil stabilization, sediment control, non-storm water controls, waste management, and materials disposal controls and references locations on the vicinity map and water pollution control drawings.
In a WPCP, Section 10 contains the approval signatures. Section 20 describes the unique features of the site and contains the schedule. Section 30 identifies the selected BMPs, the vicinity map and water pollution control drawings. Section 40 contains any WPCP amendments. e. Review the Contractor
s Schedule .
The accepted Baseline schedule as well as the m onthly updates and three-week look-ahead schedules are important references to better an ticipate which BMPs will be implemented or 4 Tuesday, August 05, 2025 Reg CC MTG, Page *483
Introduction
needed. A project schedule is required in both SWPPPs and WPCPs and must show how the rainy season relates to soil-disturbing and re-stabilization activities and must also show major activities sequenced with implementation of BMPs.
Step 2: Establish an Inspection Schedule
a. Prior to the rainy season, inspect the site to en sure that the contractor has the necessary materials to stabilize required DSAs and to implement the necessary sediment controls. b. Year round, inspect the construction site prior to a forecast storm, after a rain event that causes runoff from the construction site, and at 24-hour intervals during an extended rain event. c. Conduct inspections at other frequenci es as required by the Special Provisions. d. Work with the Project Storm Water Coordi nator, the District Construction Storm Water Coordinator, and SWTF Inspectors during site inspections and to receive assistance when necessary.
Step 3: Conduct the Inspection
a. Use the most recent Storm Water Quality Construction Site Inspection Checklist to document the inspection. The checklist is provided in Attachment H of the Caltrans Storm Water Quality Handbooks, SWPPP and WPCP Preparation Manual. This is the same checklist used by the contractor for conducting inspections. Instructions for using the checklist are also provided in Attachment H.
b. Encourage the contractor to participate in the inspection. This provides the opportunity for verbal feedback and discussion.
c. If the project involves significant structures work, encourage the Structures representative or inspector to participate in the inspection. Take a copy of the most current and approved site plan(s) and SWPPP on the inspection for identification of site features and for taking notes at specific areas.
d. Fill out the Inspection Checklist and add findings in writing. Use clear and concise language and give specific locations where problems were observed.
e. Take photographs during the inspection to document the existing conditions. This is especially important if the contractor does not attend the inspection. When photos of problem areas are taken, try to follow up with photos showing corrections. f. Inspect the entire site, including the perimeter, especially where there is potential for run-on or discharge from the site. Look for areas of potentia l concentrated flows and for adjacent water bodies or drainage facilities that may be affected by discharges from the site. Start the inspection at the lowest point, or the area with the high est potential for discharge. Inspect all potential discharge points. The SWPPP/WPCP should identify discharge points, however, there may be areas with discharge potential that were not identified in the SWPPP/WPCP. g. Inspect the contractor
s yard(s), where required.
h. Look for changes in construction or site conditions that may require an amendment to the SWPPP/WPCP.
5 Tuesday, August 05, 2025 Reg CC MTG, Page *484
Introduction
i. Inspect for proper implementation of non-storm water management BMPs and waste management and materials pollution control BMPs.
j. For inspections during the rainy season, evaluate active and non-active DSAs. (The Resident Engineer should periodically evaluate the classification of construction areas as active DSAs or non-active DSAs.) Determine the total area of DS A and compare it to the limit for DSAs in the Special Provisions. If the existing DSA exceeds the limit, identify areas that can be stabilized to reduce the amount. Active DSAs require protection pr ior to the onset of rain. Evaluate erosion and sediment control BMPs based on the requirements related to Rainfall Area, season and active/non-active status as defined in the SWPPP/WP CP and BMP Manual. Be sure to inspect the entire site during a rain event, especially when run-off from the site occurs. Confer with the District Construction Storm Water Coordinator as to the districts definition of a rain event and maintain weather reports in the SWPPP file.
k. During the non-rainy season, identify the active and non-active DSAs. Depending on the Rainfall Area, DSAs may continue to require erosion and sediment control BMPs during the nonrainy season. l. For individual BMPs, note if the BMP is properly installed. Also note if the BMP is in need of repair or maintenance.
Step 4: Report Inspection Results
a. If the Resident Engineer did not attend the in spection, communicate the results to the Resident Engineer.
b. Ideally, observations should be discussed with the contractor during the inspection. c. Missing BMPs and non-compliance issues must be communicated to the contractor. Refer to the contractors SWPPP/WPCP for required BMPs.
Step 5: Follow-up with Corrective Measures
The contractor must install missing BMPs and correct improperly installed or damaged BMPs immediately or by a date and time as approved in writing by the Resident Engineer. In any event, corrections must be made prior to the next rain event.
6 Tuesday, August 05, 2025 Reg CC MTG, Page *485
Project Operations and BMPs
PART II: PROJECT OPERATIONS AND BMPS
Table 1 identifies individual BMPs that are appli cable to specific construction operations. The BMPs listed in the table are for general consideration dur ing each phase of operations. The indicated BMPs may not be applicable to every construction operation, nor is every possible BMP listed for each construction operation. The Resident Engineer should determin e the appropriateness of an individual BMP to a construction site.
Table 1 Storm Water BMPs for Construction Operations
Construction Operation BMPs
(See Part III for Details)
Mobilization
SC-7 Street Sweeping and Vacuuming
TC-1 Stabilized Construction Entrance/Exit
TC-2 Stabilized Construction Roadway
TC-3 Entrance/Outlet Tire Wash
NS-6 Illicit Connection/ Illegal Discharge Detection and Reporting WM-1 Material Delivery and Storage
WM-2 Material Use
WM-4 Spill Prevention and Control
WM-5 Solid Waste Management
WM-6 Hazardous Waste Management
WM-9 Sanitary/Septic Waste Management
Clearing/Grubbing
SS-1 Scheduling
SS-2 Preservation of Existing Vegetation
SS-3 Hydraulic Mulch
SS-4 Hydroseeding
SS-5 Soil Binders
SS-6 Straw Mulch
SS-7 Geotextiles, Plastic Covers & Erosion Control Blankets/Mats SS-8 Wood Mulching
SS-9 Earth Dikes/Drainage Swales & Lined Ditches
SS-10 Outlet Protection/Velocity Dissipation Devices
SS-11 Slope Drains
SC-1 Silt Fence
SC-2 Desilting Basin
SC-3 Sediment Trap
SC-4 Check Dam
SC-5 Fiber Rolls
SC-6 Gravel Bag Berm
SC-7 Street Sweeping and Vacuuming
SC-8 Sandbag Barrier
SC-9 Straw Bale Barrier
SC-10 Storm Drain Inlet Protection
WE-1 Wind Erosion Control
NS-1 Water Conservation Practices
NS-8 Vehicle and Equipment Cleaning
NS-9 Vehicle and Equipment Fueling
NS-10 Vehicle and Equipment Maintenance
WM-3 Stockpile Management
WM-5 Solid Waste Management
WM-7 Contaminated Soil Management
7 Tuesday, August 05, 2025 Reg CC MTG, Page *486
Project Operations and BMPs
Construction Operation BMPs
(See Part III for Details)
Earthwork
SS-1 Scheduling
SS-2 Preservation of Existing Vegetation
SS-3 Hydraulic Mulch
SS-4 Hydroseeding
SS-5 Soil Binders
SS-6 Straw Mulch
SS-7 Geotextiles, Plastic Covers & Erosion Control Blankets/Mats SS-8 Wood Mulching
SS-9 Earth Dikes/Drainage Swales & Lined Ditches
SS-10 Outlet Protection/Velocity Dissipation Devices
SS-11 Slope Drains
SC-1 Silt Fence
SC-2 Desilting Basin
SC-3 Sediment Trap
SC-4 Check Dam
SC-5 Fiber Rolls
SC-6 Gravel Bag Berm
SC-7 Street Sweeping and Vacuuming
SC-8 Sandbag Barrier
SC-9 Straw Bale Barrier
SC-10 Storm Drain Inlet Protection
TC-1 Stabilized Construction Entrance/Exit
WE-1 Wind Erosion Control
NS-4 Temporary Stream Crossing
NS-8 Vehicle and Equipment Cleaning
NS-9 Vehicle and Equipment Fueling
NS-10 Vehicle and Equipment Maintenance
WM-7 Contaminated Soil Management
PCC and
AC Operations
SC-7 Street Sweeping and Vacuuming
TC-1 Stabilized Construction Entrance/Exit
NS-3 Paving and Grinding Operations
WM-1 Material Delivery and Storage
WM-2 Material Use
WM-3 Stockpile Management
WM-5 Solid Waste Management
WM-8 Concrete Waste Management
Drainage Work
SC-2 Desilting Basin
SC-3 Sediment Trap
SC-4 Check Dam
SC-10 Storm Drain Inlet Protection
SS-9 Earth Dikes/Drainage Swales & Lined Ditches
SS-10 Outlet Protection/Velocity Dissipation Devices
Dewatering Operations NS-2 Dewatering Operations
8 Tuesday, August 05, 2025 Reg CC MTG, Page *487
Project Operations and BMPs
Construction Operation BMPs
(See Part III for Details)
Bridge Construction
NS-1 Water Conservation Practices
NS-3 Paving and Grinding Operations
NS-4 Temporary Stream Crossing
NS-5 Clear Water Diversion
NS-8 Vehicle and Equipment Cleaning
NS-9 Vehicle and Equipment Fueling
NS-10 Vehicle and Equipment Maintenance
WM-1 Material Delivery and Storage
WM-2 Material Use
WM-3 Stockpile Management
WM-4 Spill Prevention and Control
WM-5 Solid Waste Management
WM-6 Hazardous Waste Management
WM-8 Concrete Waste Management
WM-10 Liquid Waste Management
NS-3 Paving and Grinding Operations
NS-4 Temporary Stream Crossing
NS-5 Clear Water Diversion
Roadway Construction
WM-1 Material Delivery and Storage
WM-2 Material Use
WM-3 Stockpile Management
WM-5 Solid Waste Management
WM-6 Hazardous Waste Management
WM-8 Concrete Waste Management
WM-10 Liquid Waste Management
Mobile Operations
SC-7 Street Sweeping and Vacuuming
SC-10 Storm Drain Inlet Protection
TC-1 Stabilized Construction Entrance/Exit
NS-8 Vehicle and Equipment Cleaning
NS-9 Vehicle and Equipment Fueling
NS-10 Vehicle and Equipment Maintenance
WM-1 Material Delivery and Storage
WM-2 Material Use
WM-3 Stockpile Management
WM-5 Solid Waste Management
WM-6 Hazardous Waste Management
WM-8 Concrete Waste Management
Trenching Operations
SC-7 Street Sweeping and Vacuuming
SC-10 Storm Drain Inlet Protection
WM-3 Stockpile Management
9 Tuesday, August 05, 2025 Reg CC MTG, Page *488
Project Operations and BMPs
Construction Operation BMPs
(See Part III for Details)
Erosion Control,
Highway Planting and
Landscaping
SS-1 Scheduling
SS-2 Preservation of Existing Vegetation
SS-3 Hydraulic Mulch
SS-4 Hydroseeding
SS-5 Soil Binders
SS-6 Straw Mulch
SS-7 Geotextiles, Plastic Covers & Erosion Control Blankets/Mats SS-8 Wood Mulching
SS-9 Earth Dikes/Drainage Swales & Lined Ditches
SS-10 Outlet Protection/Velocity Dissipation Devices
SC-1 Silt Fence
SC-7 Street Sweeping and Vacuuming
SC-8 Sandbag Barrier
SC-9 Straw Bale Barrier
SC-10 Storm Drain Inlet Protection
WE-1 Wind Erosion Control
NS-7 Potable Water/Irrigation
NS-8 Vehicle and Equipment Cleaning
WM-1 Material Delivery and Storage
WM-2 Material Use
10 Tuesday, August 05, 2025 Reg CC MTG, Page *489
Preservation of Existing Vegetation SS-2
11 PART III: BMP IMPLEMENTATION AND TROUBLESHOOTING
TEMPORARY SOIL STABILIZATION
SS-2 PRESERVATION OF EXISTING VEGETATION
Preservation of existing vegetation involves the identification and protection of desired vegetation.
Applications
Delineate Environmentally Sensitive Areas (ESAs)
Delineate areas where no construction activities are planned Delineate areas where construction activities will occur at a later date Delineate areas outside the project right-of-way or boundary Key Points
Key Point # 1 – Timing
Areas to be protected should be delineated prior to clearing and grubbing operations or other soildisturbing activities. It is also appropriate for areas where no construction activity is planned or where activity is planned for a later date (Photo 1).
Key Point # 2 – Layout
Areas of existing vegetation that are scheduled for preservation should be clearly marked with a temporary fence (Photo 2). Minimize disturbance by locating temporary roadways, storage facilities, and parking areas away from preserved vegetation.
Photo 1 Photo 2
Key Point # 3 – Training
Instruct employees, workers, surveyors, and subcontractors to honor protective devices. Maintain any existing irrigation systems and vegetation.
Key Point # 4 –Tree Preservation
Keep equipment away from trees to prevent root a nd trunk damage. Trenching should be as far away from tree trunks as possible, typically outside the drip lin e. Trenches should be filled in as soon as possible to avoid root drying. Fill trenches carefully and tamp the soil to fill in air pockets. Never expose roots to the air.
Tuesday, August 05, 2025 Reg CC MTG, Page *490
Preservation of Existing Vegetation SS-2
Preventive Measures and Troubleshooting Guide
Field Condition: Common solutions are:
Vehicles and equipment run into or over
vegetation that is to be preserved.
Clearly mark areas of preservation, and instruct workers to honor those areas.
Existing vegetation dies from lack of watering. Maintain existing irrigation systems and ensure that they function properly.
Preserved trees are damaged.
Keep equipment and vehicles away from trees to prevent
trunk and root damage. Severely damaged trees should be attended to by an arborist.
ESAs or areas where construction is not to occur
or can occur at a later date are not delineated for
protection.
Verify vegetation that requires preservation. Stop work if necessary. Delineate area as needed.
12 Tuesday, August 05, 2025 Reg CC MTG, Page *491
13 Hydraulic Mulch SS-3
SS-3 HYDRAULIC MULCH
Hydraulic mulch is a mixture of shredded wood fiber or hydraulic matrix, water, and a stabilizing emulsion or tackifier. Applied hydraulic mulch will he lp protect bare soil from water and wind erosion.
Bonded Fiber Matrix (BFM) is another soil stabilizer alternative to hydraulic mulch.
Applications
Temporary protection for DSAs until permanent vegetation is established Temporary protection for DSAs that will be re-disturbed following an extended period (1 to 3 months) of inactivity
Key Points
Key Point #1 – Application
Wood fiber mulches are mixed in a hydroseeder and applied as liquid slurry. Material is applied from a spray gun on a tower (Photo 1) or from a hose (Photo 2).
Photo 1 Photo 2
Key Point #2 – Hydraulic Matrix Vs. Hydraulic Mulch
A hydraulic matrix, as opposed to a basic wood fiber hy draulic mulch, consists of a wood fiber base layer and a paper fiber top layer mixed with a binding agent and applied as a liquid slurry. Paper based hydraulic mulches alone shall not be used for temporary soil stabilization applications.
Key Point #3 – Bonded Fiber Matrix
A bonded fiber matrix (BFM) consists of a continuous layer of elongated wood fiber strands mixed with a bonding agent. Again, the material is applied as a liquid slurry. Once dried, a high strength, porous, and erosion resistant mat is created (Photo 3).
Tuesday, August 05, 2025 Reg CC MTG, Page *492
Hydraulic Mulch SS-3
Photo 3
Key Point #4 – Avoid Over Spraying
Do not over spray onto the traveled way, sidewalks, lined channels, etc. (Photo 4).
Key Point #5 – After Application
In addition, ensure that areas to be sprayed will rema in inactive or undisturbed. This slope was disturbed after bonded fiber matrix was applied (Photo 5).
Photo 4 Photo 5
Preventive Measures and Troubleshooting Guide
Field Condition: Common solutions are:
Slope was improperly dressed before application. Roughen embankment and fill areas first by rolling with crimping or punching type roller or by track walking.
Coverage is inadequate.
Follow recommended application rates. Count the number
of bags of the product to ensure the correct amount of
material is used.
Allowed inadequate drying time.
Allow at least 24 hours for the material to dry before a rain event. Follow manufacturers recommendations. Reapply
where necessary.
Portions of the mulch have been disturbed. Keep workers and equipment off the mulched areas and repair areas that have been damaged.
Excess water flows across stabilized surface.
Use other BMPs to limit flow onto stabilized area. Use
other BMPs to reduce slope lengths. Do not use to stabilize areas with swift moving concentrated flows.
14 Tuesday, August 05, 2025 Reg CC MTG, Page *493
Hydroseeding SS-4
15 SS-4 HYDROSEEDING
Hydroseeding typically consists of applying a mixtur e of fiber, seed, fertilizer, and stabilizing emulsion with hydro-mulch equipment to temporarily protect exposed soils from erosion by water and wind.
Applications
Temporary protection for DSAs until permanent vegetation is established Temporary protection for DSAs that will be re-distu rbed following an extended period (6 to 12 months) of inactivity
Key Points
Key Point #1 – Hydroseeding Mixture Selection
Select a hydroseeding mixture by evaluating site conditions with respect to:
• Soil conditions and soil type.
• Site topography - steep slopes are difficult to protect with temporary seeding. • Season and climate - seeding during summer or in arid areas may limit germination and plant establishment.
• Water availability - temporary or permanent irri gation may be needed for germination and plant establishment.
• Sensitive adjacent areas - seeding should be compatib le with adjacent ESAs. If incompatible seeding is to be used, ensure that seeds are not sprayed or blown onto the sensitive area. • The Landscape Architect or the Construction Stor m Water Coordinator shall approve hydroseeding mixtures.
Key Point #2 – Temporary Measure
If permanent vegetation is to be applied in th e seeded area, the temporary vegetation from the hydroseeding may need to be removed. For exampl e, grasses that inhibit compaction of soil to the required density must be removed before permanent vegetation is applied.
Key Point #3 – Preparation and Application
Roughen areas to be hydroseeded by plowing or disk ing with furrows trending along the contours. Avoid over spraying onto sidewalks, lined drainage channels, roadways, or existing vegetation (Photo 1).
Key Point #4 – Inspection and Maintenance
All seeded areas should be inspected for failures. Rea pply seed, fertilizer, mulch, and water as needed to maintain coverage and encourage plant establishment. After grasses are established, mowing may be required to reduce fire hazard (Photo 2).
Tuesday, August 05, 2025 Reg CC MTG, Page *494
Hydroseeding SS-4
Photo 1 Photo 2
Preventive Measures and Troubleshooting Guide
Field Condition: Common solutions are:
Slope was improperly dressed before application. Roughen slopes. Furrow along the contour of areas to be seeded.
Coverage is inadequate.
Follow recommended application rates. Count the number
of seed bags of the product to ensure the correct amount of material is being applied. Reapply to thin areas.
Seeds fails to germinate.
Apply straw mulch to keep seeds in place and to moderate soil moisture and temperature. In arid areas, temporary irrigation may be necessary.
Seeded slope fails. Fill in rills and re-seed; fertilize and mulch slopes.
Seeding is washed off slope.
Allow at least 24 hours for the materials to dry before a rain event. Follow manufacturers recommendations. Reapply
where necessary.
Excessive water flows across stabilized surface.
Use other BMPs to limit flow on stabilized area. Use other BMPs to reduce slope lengths. Do not use to stabilize areas with swift moving concentrated flows.
16 Tuesday, August 05, 2025 Reg CC MTG, Page *495
Soil Binders SS-5
17 SS-5 SOIL BINDERS
Soil binders are materials applied to the soil surface to temporarily reduce erosion of exposed soils on construction sites. Soil binders consist of applying and maintaining polymeric or lignin sulfonate soil stabilizers or emulsions.
Applications
Temporary protection for DSAs that will be re-disturbed following a period of inactivity Depending on the type of soil binder, the period of effectiveness is three months to two years Key Points
Key Point #1 – Product Selection
Select soil binders by evaluating the site with respect to:
• Soil types and surface materials
• Suitability to the situation
• Performance and longevity requirements
Key Point #2 – Preparation
Prepare soil before applying the binder so that the binder adheres to and penetrates the soil surface. The untreated surface must be roughened (Photo 1) and must contain sufficient moisture (Photo 2) for the binder to achieve uniform penetration.
Photo 1 Photo 2
Key Point #3 – Curing
Soil binders require a minimum curing time before beco ming fully effective, therefore binders should not be applied during or immediately before rainfall.
Key Point #4 – Product Constituents
When selecting a product, consider the chemical com ponents and review the Material Safety Data Sheet (MSDS). If the product has a potential for becoming a pollutant, consider using a different product.
Tuesday, August 05, 2025 Reg CC MTG, Page *496
Soil Binders SS-5
Key Point #5 – Inspection and Maintenance
Inspect the areas of application after rainfall for signs of erosion (Photo 3).
Inspect high traffic areas daily and low traffic areas on a weekly basis. High traffic areas are those exposed to daily use (vehicle or foot traffic) by c ontractor, subcontractor, or other personnel. Low traffic areas are those available for use but not in a daily manner.
Reapply soil binder as necessary (Photo 4).
Photo 3 Photo 4
Preventive Measures and Troubleshooting Guide
Field Condition: Common solutions are:
Slope was improperly dressed before application.
Roughen embankment and fill areas by rolling with a
crimping or punching type roller or track walking where rolling is impractical. Pre-wet the areas of application.
Coverage is inadequate.
Follow recommended application rates. Count the number
of bags of the product to ensure the correct amount of
material is implemented. Reapply to the areas.
Sprayed areas degrade or become ineffective. Follow recommended application rates. Consider other or additional BMPs. Reapply binder as necessary.
Sprayed slope has spot failures. Repair slopes and re-spray damaged areas.
Portions of the sprayed area have been disturbed. Keep workers and equipment off sprayed areas. Repair and re-spray areas that have been damaged.
Binder fails to penetrate soil. Roughen soil and pre-wet to manufacturer s
recommendations. Reapply to areas where necessary.
Soil binder is washed off slope.
Allow at least 24 hours for the materials to dry before a rain event. Follow manufacturers recommendations. Reapply as necessary.
Excessive water flows across stabilized surface.
Use other BMPs to limit flow onto stabilized area. Use
other BMPs to reduce slope lengths. Do not use to stabilize areas with swift moving concentrated flows.
18 Tuesday, August 05, 2025 Reg CC MTG, Page *497
Straw Mulch SS-6
19 SS-6 STRAW MULCH
Straw mulch consists of placing a uniform layer of st raw and incorporating it into the soil with a studded roller or anchoring it with a tackifier. Straw mu lch is used as a temporary surface cover for soil stabilization on DSAs until soils can be prepared for re-v egetation. It is also used in combination with temporary and/or permanent seeding strategies to enhance plant establishment.
Applications
Temporary protection for DSAs (6 to 12 months)
Used in combination with temporary and/or permanent seeding to enhance plant establishment
Key Points
Key Point #1 – Application Rate
Straw mulch must be evenly distributed on the soil surface (Photo 1). Proper application rates should be followed so that mulch covers the soil in a uniform layer without any visible bare spots.
Key Point #2 – Application Methods
Straw mulch can be applied mechanically or by ha nd (Photo 2). Mechanical application involves a straw blower (Photo 3) and may require an access road or driving surface capable of supporting the equipment.
When using a straw blower, schedule the appli cation to avoid excessive windblown straw. Manual application is time and labor inte nsive and should be used only on small areas or where equipment access is not feasible.
Photo 1 Photo 2
Key Point #3 – Anchoring
The preferred method for anchoring straw mulch in place is to use a tackifier. Other methods for anchoring the mulch include crimping (Photo 4), punching, or track walking. Crimping and punching are mechanical methods of anchoring the mulch to the soil. Track walking should be used only where rolling is impractical.
Key Point #4 – Inspection and Maintenance
Inspect straw mulches prior to and after rainstor ms. Repair any damaged ground cover and re-mulch exposed areas of bare soil.
Tuesday, August 05, 2025 Reg CC MTG, Page *498
Straw Mulch SS-6
Photo 3 Photo 4
Preventive Measures and Troubleshooting Guide
Field Condition: Common solutions are:
Mulch blows away. Anchor straw mulch in place by applying a tackifier, crimping, punching, or track walking. May need to use a different BMP.
Coverage is inadequate. Follow recommended application rates. Count the number of bales per acre to ensure the correct amount of material is implemented. Reapply as necessary.
Excessive water flows
across stabilized surface.
Use other BMPs to limit flow onto stabilized area and/or to reduce slope lengths. Do not use to stabilize areas with swift moving concentrated flows. 20 Tuesday, August 05, 2025 Reg CC MTG, Page *499
Geotextiles, Plastic Covers, Erosion Control Blankets & Mats SS-7 21 SS-7 GEOTEXTILES, PLASTIC COVERS, EROSION CONTROL BLANKETS & MATS This BMP involves the placement of geotextiles, plastic covers, and erosion control blankets and mats to stabilize DSAs and protect soil from erosion by wind or water. Typically these measures are used on slopes near ESAs, as a quick stopgap measure, and when DSAs are particularly difficult to stabilize.
Applications
Steep slopes that are generally steeper than 1:3 (V:H)
Slopes where the erosion potential is high
Disturbed areas where plants are slow to develop
Stockpiles
Slopes adjacent to water bodies in or near ESAs
Key Points
Key Point #1 – Product Selection
There are many types of erosion control blankets and mats available (Photo 1). Select a product appropriate for the application a nd site conditions. Selection criteria include: (1) effectiveness for reducing erosion, flow velocity, and runoff; (2) acceptability for environmental compatibility, institutional / regulatory requirements, and visual impact; (3) co mpatibility with native plants, moisture retention, temperature modification, and open space coverage; (4) durability, longevity, ease of installation; and (5) maintenance frequency.
Key Point #2 – Site Preparation
Site preparation is essential to ensure that blankets and mats perform as intended. Remove all rocks, clods, vegetation or other obstructions and re-grade to allow the blanket or mat to come into complete contact with the soil. Improper slope preparation prev ents the blanket from fully contacting the soil, and allows water to flow under the blanket (Photo 2).
Photo 1 Photo 2
Key Point #3 – Slope Installation
Install the product starting from the top of the slope (Photo 3), anchored in a 150 mm by 150 mm (6 in by 6 in) trench that is backfilled and tamped firmly. Unroll the blankets down the slope, laying them loosely and stapling every 1 m (3 ft). Do not stretch blankets. Ensure that the blanket maintains direct contact with the soil. Overlap the edges of adjacent pa rallel rolls by 50 mm to 75 mm (2 in to 3 in).
Tuesday, August 05, 2025 Reg CC MTG, Page *500
Geotextiles, Plastic Covers, Erosion Control Blankets & Mats SS-7 Photo 3
Key Point #4 – Inspection and Maintenance
Inspect blanket and mat installations periodically and after significant rainstorms for signs of erosion or undermining. Repair or replace any failures immediately. If washout or breakage of material occurs, reinstall material after repairing damage to slope or channel. Maintain areas treated with temporary soil stabilization to provide adequate erosion control. Reapply or replace temporary erosion controls on exposed soils when visibly eroded or when there is a 10 percent or greater exposure of the previously treated area.
Preventive Measures and Troubleshooting Guide
Field Condition (Geotextiles): Common solutions are:
Undercutting occurs along the top of the slope.
Dig a 150 mm by 150 mm (6 in by 6 in) trench along the
top of the slope and anchor blanket into trench by back filling and tamping the soil.
Blankets separate along the seams. Overlap adjacent blanket 50 mm to 75 mm (2 in to 3 in) and staple every 1 m (3 ft).
Blankets separate where the rolls are attached end
to end.
Shingle the blanket so the top blanket covers the bottom blanket by 150 mm (6 in) and staple through the overlapped areas every 300 mm (12 in)
Blanket does not make complete contact with the
soil surface.
Prepare the soil surface by removing, rocks, clods , sticks and vegetation, fill in rill and uneven areas
Excessive water flows across stabilized surface.
Use other BMPs to limit flow on stabilized area. Use other BMPs to reduce slope lengths. Do not use to stabilize areas with swift moving concentrated flows.
22 Tuesday, August 05, 2025 Reg CC MTG, Page *501
Geotextiles, Plastic Covers, Erosion Control Blankets & Mats SS-7 Field Condition (Plastics): Common solutions are:
Undercutting occurs along the top of the slope. Dig a trench along the top of the slope and anchor blanket into trench by back filling and tamping the soil.
Plastic sheeting separates along the seams. Overlap edges of plastic sheeting by 300 mm to 600 mm (12 in to 24 in) and tape the entire length or weight down.
Plastic sheeting tears and separates.
Overlap plastic sheets by 300 mm to 600 mm (12 in to 24 in), tape edges together or weigh down. Maintain
installation by replacing torn areas.
Plastic sheet is blown or displaced by winds. Weigh down sheet to protect from wind. Maintain installation by replacing sheets in position.
Field Condition (Blankets and Mats): Common solutions are:
Improper anchoring. Dig trench along the top and bury the blankets. Use staples to anchor according to manufacturers recommendations.
Undercutting due to inadequate preparation.
Prepare the soil surface. Remove rocks, clods and other obstructions. Fill in rills in uneven areas to promote good contact between mat and soil.
Excessive water flow across stabilized surface.
Use other BMPs to limit flow onto stabilized area. Use
other BMPs to reduce slope lengths. Do not use to stabilize areas with swift moving concentrated flows.
23 Tuesday, August 05, 2025 Reg CC MTG, Page *502
Wood Mulching SS-8
24 SS-8 WOOD MULCHING
This BMP consists of applying a mixture of shredded wood mulch, bark, or compost to bare soil to reduce runoff, increase infiltration, and reduce erosion due to rainfall impact. Wood mulch provides temporary or short-term soil stabilization primarily for landscaping projects.
Applications
Temporary protection of DSAs pending estab lishment of permanent vegetative cover As a permanent non-vegetative ground cover on slopes
Key Points
Key Point #1 – Product Selection
Select wood mulch products appropria te for the application and site conditions. Prior to placement, consult with the District Landscape Ar chitect to ensure that the mulch is compatible with planned future projects.
Key Point #2 – Preparation
After existing vegetation has been removed, roughe n embankment and fill areas by rolling with a punch type roller or track walking (Photo 1) before applying the wood mulch.
Photo 1
Key Point #3 – Mulch Depth
Mulch depth depends on the product selected such as green material or shredded wood (Photo 2).
Distribute shredded wood mulch evenly (Photo 3) across the soil to a depth of 50 mm (2 in) to 75 mm (3 in). Mulch composed of recycled green waste should be applied to a maximum depth of 50 mm (2 in).
Key Point #4 – Inspection and Maintenance
Inspect and maintain mulch to ensure that it last s long enough to achieve the erosion control objectives.
Tuesday, August 05, 2025 Reg CC MTG, Page *503
Wood Mulching SS-8
Photo 2 Photo 3
Preventive Measures and Troubleshooting Guide
Field Condition: Common solutions are:
Area was improperly dressed before application.
Remove existing vegetation and roughen embankment and
fill areas by rolling with a punch type roller or by track walking.
Coverage is inadequate. Follow recommended application rates. Inspect the areas to ensure that the mulch is applied to the correct depth.
Mulch is washed away. Do not place mulch in concentr ated flow areas. Reapply as necessary or use another BMP.
Excessive water flows across stabilized surface.
Use other BMPs to limit flow onto stabilized area. Use
other BMPs to reduce slope lengths. Do not use to stabilize areas with swift moving concentrated flows.
25 Tuesday, August 05, 2025 Reg CC MTG, Page *504
Earth Dikes, Drainage Swales & Ditches SS-9
26 SS-9 EARTH DIKES, DRAINAGE SWALES & DITCHES
Earth dikes, drainage swales, and lined ditches are structures that intercept, divert, and convey surface runoff around or through the project site in a non-erosive manner.
Applications
To convey surface runoff down sloping land
Along paved surfaces to intercept runoff
Along the top of slopes to divert surface flow from slopes To divert and direct runoff towards stabilized drainage systems Below steep grades where runoff begins to concentrate
Key Points
Key Point #1 – Sediment Control
It may be necessary to use other water pollution contro l practices such as check dams, plastic sheeting, or blankets to prevent scour and erosion in the swales, dikes, and ditches.
Key Point #2 – Flow Velocity
Select flow velocity for ditches, swales, and dik es based on careful evaluation of potential risk due to erosion, over topping, flow backup, washout, and dr ainage flow patterns for each project. In some cases the drainage swale may need to be constructed with asphalt concrete (Photo 1).
Photo 1
Key Point #3 – Location Selection
Care must be applied to correctly size and locate earth dikes, drainage swales, and lined ditches.
Excessively steep, unlined dikes and swales may be subj ect to erosion and gully formation. Earth dikes, drainage swales and ditches are not suitable as sediment trapping devices.
Key Point #4 – Inspection and Maintenance
Inspect temporary measures prior to the rainy season, after rainfall events and regularly (approximately once every two weeks) during the rainy season. Insp ect channels, embankments, and ditch beds for erosion, washout, and accumulation of sediment and debris. Repair or replace lost riprap, linings, or soil stabilization as needed.
Tuesday, August 05, 2025 Reg CC MTG, Page *505
Earth Dikes, Drainage Swales & Ditches SS-9
Preventive Measures and Troubleshooting Guide
Field Condition (Earth Dikes): Common solutions are:
Dikes wash out. Compact the soil used to build the earthen dikes.
Area behind dikes erode. Stabilize the area. Use other BMPs to stabilize the uphill side of the dike, such as SS-7.
Concentrated flow causes erosion. Stabilize conveyances and/or use check dams, plastic, or blankets to control erosion.
Outlet erodes. Stabilize outlets, replace lost riprap
Field Condition (Drainage Swales and Ditches): Common solutions are:
Ditches and swales erode due to high velocity
flows.
Line channels with permanent stabilization. Place riprap or line channel with blankets or plastics. Add velocityreducing BMPs upstream, e.g. check dams.
Swales and ditches fill up with sediment. Remove accumulated sediment from ditches and swales.
Stabilize upstream contributing ar eas with a soil stabilizer.
Ditches and swales are overtaken by flows. Determine the upstream contributing areas and size ditches and swales to handle anticipated flow velocities.
Conveyances erode. Place check dams as necessary to reduce flow velocities.
Stabilize conveyances with plastic and/or blankets.
27 Tuesday, August 05, 2025 Reg CC MTG, Page *506
Outlet Protection/Velocity Dissipation Devices SS-10
28 SS-10 OUTLET PROTECTION/VELOCITY DISSIPATION DEVICES This BMP requires the placement of rock, riprap, or othe r material at pipe outlets to reduce flow velocity of exiting storm water and thus prevent scouring.
Applications
Outlets of pipes, drains, culverts, slope drains, diversion ditches, swales, conduits, or channels Outlets located at the bottom of mild to steep slopes
Outlets subject to intense water flows
Outlets that carry continuous flows of water
Points where lined conveyances discharge to unlined conveyances Key Points
Key Point #1 – Riprap Selection
The minimum riprap diameter is determined by the outlet diameter, discharge volume, and apron length.
Outlets with slopes greater than 10% need additional protection. Flow rate and local climate may dictate whether loose rock (Photo 1) or grouted riprap is appropriate. High flows may wash loose rock away.
Grouted riprap may break up in areas of freeze and thaw.
Key Point #2 – Unprotected Outlets
Flows from unprotected pipe outlets can result in severe erosion (Photo 2). Use a flared end section or riprap at the outlet to reduce flow velocity and erosive potential of concentrated flows.
Photo 1 Photo 2
Key Point #3 – Installation
Carefully place riprap to prevent damage to underlyi ng filter fabric. Where large riprap is used, the underlying filter fabric may need to be protected with a rock blanket.
Key Point #4 – Inspection and Maintenance
Inspect temporary velocity dissipation devices prior to the rainy season, after rainfall events and regularly (approximately once every two weeks) during the rainy season. Inspect aprons for riprap displacement or damage to underlying fabric. Inspect for scour ben eath the riprap and around the outlets, and repair as needed.
Tuesday, August 05, 2025 Reg CC MTG, Page *507
Outlet Protection/Velocity Dissipation Devices SS-10
Preventive Measures and Troubleshooting Guide
Field Condition: Common solutions are:
Riprap washes away. Replace riprap with a larger diameter based on the pipe diameter and discharge velocity.
Apron is displaced.
Align apron with receiving water and keep it straight
throughout its length. Repair fabric and replace riprap that has washed away.
Scour occurs around apron or riprap. Repair damage to slopes or underlying filter fabric.
Outlet erodes. Stabilize outlets; replace lost riprap; grout riprap. 29 Tuesday, August 05, 2025 Reg CC MTG, Page *508
Slope Drains SS-11
30 SS-11 SLOPE DRAINS
A slope drain conveys water down a slope into a stab ilized receiving water, trapping device, or stabilized area. Slope drains are used with lined ditches to convey surface flow away from slope areas to protect cut or fill slopes.
Applications
Where concentrated flows are directed over a slope
Key Points
Key Point #1 – Limitations
Severe erosion may result if a slope drain fa ils due to over topping or pipe separation.
Key Point #2 – Drainage Constraints
Limit the area draining to a slope drain to 4 ha (10 ac) per pipe. Large areas may require the use of a rocklined channel or a series of pipes. The maximum slope gradient is generally limited to 1:2 (V:H), as the ability to dissipate water velocity from steeper slopes is difficult.
Key Point #3 – Installation
Install slope drains perpendicular to the slope contour (Photo 1). Compact the soil around and under the slope drain inlet, outlet, and along the length of the pipe . Protect the pipe inlet with filter fabric or flared end sections for pipes that are greater than 300 mm (12 in) in diameter. Ensure that pipe connections are watertight. Securely anchor and stabilize th e pipe and appurtenances into the soil.
Photo 1
Key Point #4 – Velocity Dissipation
Protect outlet with riprap or velocity dissipation de vices. For high-velocity discharges, reinforce riprap with concrete or reinforced concrete devices. It may be necessary to capture discharge and allow sediment to settle out.
Key Point #5 – Inspection and Maintenance
Inspect before and after each rain event and twice monthly until the tributary drainage area has been stabilized. Inspect outlets for erosion and downstream scour. In the event of scour, reduce the flows going into the channel unless other preven tive measures can be implemented.
Tuesday, August 05, 2025 Reg CC MTG, Page *509
Slope Drains SS-11
Preventive Measures and Troubleshooting Guide
Field Condition: Common solutions are:
Pipe separates. Reconnect pipe sections. Securely anchor and stabilize pipe into soil. Ensure that pipe connections are watertight.
Pipe outlet erodes.
Repair damage and stabilize outlet with a flared end
section, riprap, or velocity dissipation device. If necessary, reduce flows being discharged.
Pipe becomes clogged. Flush out pipe. Place a screen or grate at inlet to capture large particles.
Erosion occurs around inlet. Stabilize area around inlet with filter fabric or flared end section. Re-grade around inlet to reduce the gradient angle.
Excessive sediment accumulates around
inlet/outlet. Remove accumulated sediment and stabilize upstream area.
Slope drain overtops.
Limit drainage area and flow velocity. Check pipe diameter to ensure that it is sized properly to accept flow. Add additional pipes to carry flows as necessary.
31 Tuesday, August 05, 2025 Reg CC MTG, Page *510
Silt Fence SC-1
32 TEMPORARY SEDIMENT CONTROL
SC-1 SILT FENCE
Silt fence is a temporary linear barrier that captures sediment by ponding and filtering storm water runoff to allow sediment to settle out of the runoff water.
Application
Below the toe of slopes as required
Down slope of exposed soil areas
Around temporary stockpiles as required
Key Points
Key Point #1 – Installation
Install on a relatively level contour. This means the barrier should be installed as close as possible to a level horizontal plane near the toe of the slope (Phot o 1). Turn the end of the barrier up the slope to prevent ponded water from escaping around the end (Photo 2).
Photo 1 Photo 2
Key Point #2 – Setback
A silt fence should be placed with a setback of at l east 1 m (3 ft). Where a 1 m (3 ft) setback is not practicable due to site conditions, the fence may be c onstructed at the toe of slope but should be placed as far from the toe as practicable to increase the ponding area and allow sediment to settle out.
Key Point #3 – Key In
The bottom of the silt fence must be keyed in or wa ter may flow underneath (Photo 3). A trench should be excavated along the proposed layout line of the fence. Af ter the silt fence stakes have been driven into the trench, backfill over the fence fabric and compact (Photo 4).
Tuesday, August 05, 2025 Reg CC MTG, Page *511
Silt Fence SC-1
Photo 3 Photo 4
Key Point #4 – Cross Barriers
For silt fence installed on a level contour with long reaches, install cross barriers at a minimum of 150 m (500 ft) intervals. For silt fence not installed on a le vel contour, install cross barriers, at a minimum, where the change in elevation equals 1/3 the height of the silt fence.
Key Point #5 – Limitations
Do not install silt fence across intermittent or pe rmanent streams, channels, or any location where concentrated flow is anticipated (Photos 5 and 6).
Photo 5 Photo 6
Key Point #6 – Inspection and Maintenance
Perform inspection before and after rain events, ev ery 24 hours during extended rain events, and weekly throughout the rainy season. Should silt fence fabric tear (Photo 7) or decompose, replace immediately.
Remove sediment deposits (Photo 8) when the sediment accumulation reaches 1/3 of the barrier height. 33 Tuesday, August 05, 2025 Reg CC MTG, Page *512
Silt Fence SC-1
Photo 7 Photo 8
Preventive Measures and Troubleshooting Guide
Field Condition: Common solutions are:
There is excessive sediment accumulation.
Remove sediment. Apply Hydraulic Mulch (SS-3) or Straw
Mulch (SS-6) or other BMP upstream to reduce sediment in runoff.
Bottom of fence is not properly keyed in. Trench, place fabric, and backfill.
Length of slope draining to silt fence is too long. Shorten slope length using Fiber Rolls (SC-5) or equivalent.
Slope shall be 61 m (200 ft) or less.
Storage capacity is inadequate due to sediment
buildup.
Remove accumulated sediment when it reaches 1/3 the
height of the barrier.
There is a lack of sufficient ponding area. Fence should be installed with at least a 1m setback from the toe of slope where possible. Divert flow at top of slope.
Erosion occurs around barrier ends. Turn ends of barriers into the up-slope area.
Silt fence is not installed along level enough
contour.
Reinstall silt fence so that change in elevation does not exceed 1/3 the height of the linear barrier along the reach.
Install cross barriers.
Slope draining to fence is too steep. Slope shall be
less than 1:1 (V:H).
Shorten slope length using Fiber Rolls (SC-5) or equivalent.
Increase setback of silt fence from the toe of slope.
Fence is installed in concentrated flow area. Replace fence with proper BMP such as Check Dams (SC-4), if appropriate.
Cross barriers not installed or installed incorrectly.
Place cross barriers on the receiving side of the barrier at a maximum separation of 150 m. Cross barrier should be a
minimum of 1/3 and a maximum of ½ the height of the
linear barrier.
Stakes are too far apart. Add stakes a maximum of 2.5 m apart.
Concentrated flows cause erosion to occur behind
silt fence. Place cross barrier check dams behind the barrier. 34 Tuesday, August 05, 2025 Reg CC MTG, Page *513
Desilting Basin SC-2
35 SC-2 DESILTING BASIN
A desilting basin is a temporary basin formed by ex cavation and/or construction of an embankment so that storm water runoff is temporarily detained, a llowing sediment to settle out before the water is discharged.
Applications
Where storm water can enter a drainage system or receiving water from a construction area At outlets of DSAs between 2 and 4 ha (5 and 10 ac) in size Key Points
Key Point #1 – Capacity
Desilting basins shall be designed to have a capacity of 100 m3 of storage for every 1 ha (55 yd3 per acre) of contributory area. Basin storage capacity is measured from the top of the basin to the principal outlet.
Basins must be designed to drain within 72 hours follo wing storm events. Basins with levees greater than
1.5 m (5 ft) in height or with an impounding capacity of 1000 m3 (1300 yd3) or greater shall be designed
by a professional Civil Engineer registered with the state of California.
Key Point #2 – Configuration
The basin inlet shall be located to maximize travel di stance to the basin outlet. The outlet structure should be placed as far away from the inlet structure as possi ble to maximize travel distance and allow suspended sediment to settle out.
Key Point #3 – Basin Dimensions
The length of the basin shall be more than twice the wi dth of the basin. Basin depth must not be less than one 1 m (3 ft) or greater than 1.5 m (5 ft). Check the approved SWPPP for actual dimensions.
Key Point #4 –- Limitations
Basins generally require excavation of large surface areas so that sediment will settle out efficiently. The availability of right-of-way may limit basin size or de ployment on construction sites. Basins may not be located in live streams. Basins may requi re protective fencing to ensure safety.
Key Point #5 – Inspection and Maintenance
Inspect basins before and after rainfall events, w eekly during the rainy season, and at 24 hours intervals during extended storm events. Check inlet and outle t structures and spillways for signs of erosion, damage, or obstructions. Examine basin banks for seepage and structural soundness. Remove accumulated sediment when the basi n storage capacity is 1/3 full.
Tuesday, August 05, 2025 Reg CC MTG, Page *514
Desilting Basin SC-2
Preventive Measures and Troubleshooting Guide
Field Condition: Common solutions are:
Outlet pipe is clogged with debris.
Clean outlet pipe. Wrap outlet pipe with filter fabric or install fencing or trash rack around pipe to hold back larger debris particles.
Spillway erodes due to high velocity flows. Stabilize outlet with riprap or line spillway with plastic sheeting or geotextile blankets.
Slope sides erode. Stabilize slopes with rock, vegetation, or equivalent method.
There is excessive accumulated sediment buildup. Remove sediment to retain holding capacity.
The upstream drainage area is too large.
Ensure that the basin is designed to accommodate the
inflow for the designed storm. Limit contributing drainage area or expand basin. Ensure drainage area does not exceed 4 ha (10 ac). If the drainage area does exceed this limit, use other or additional BMPs.
36 Tuesday, August 05, 2025 Reg CC MTG, Page *515
Sediment Trap SC-3
37 SC-3 SEDIMENT TRAP
A sediment trap is a temporary basin formed by excavation or by construction of an earthen embankment across a waterway or low drainage area and has a controlled release structure.
Applications
Permissible where contributing area is less than 2 ha (5 ac) Sites where storm water can enter a storm drain or receiving water from a construction area As a supplemental control for reducing sediment before it enters a drainage system or receiving water Key Points
Key Point #1 – Location
Traps should be excavated in a suitable area or by constructing a low embankment across a swale where failure would not pose a risk to life or property. Traps should provide access for maintenance, including sediment removal.
Key Point #2 – Configuration
The trap inlet shall be located as far away from th e trap outlet to maximize travel distance and allow suspended sediment to settle out (Photo 1).
Key Point #3 – Dimensions
The length of the trap shall be more than three times the width (Photo 2). Traps with levees greater than
1.5 m (5 ft) in height or with a storage capacity greater than 1000 m 3 (1300 yd3) shall be designed by a
professional Civil Engineer registered with the stat e of California. Check the approved SWPPP for actual dimensions.
Photo 1 Photo 2
Key Point #4 – Limitations
Traps generally require excavation of large surface areas to permit settling of sediment. The availability of right-of-way may limit their size or deployment on construction sites. Sediment traps should be limited to drainage areas of 2 ha (5 ac) or less. Traps ma y not be located in live streams. Traps may require protective fencing to ensure safety.
Tuesday, August 05, 2025 Reg CC MTG, Page *516
Sediment Trap SC-3
Key Point #5 – Inspection and Maintenance
Traps should be inspected before and after rainfall events, weekly during the rainy season, and at 24-hour intervals during extended storm events. Check inle t and outlet structures and spillways for signs of erosion, damage, or obstructions. Examine trap banks for seepage and structural soundness. Remove accumulated sediment when the trap storage capacity is 1/3 full.
Preventive Measures and Troubleshooting Guide
Field Condition: Common solutions are:
Outlet pipe is clogged with debris.
Clean out pipe. Wrap outlet pipe with filter fabric or install fencing or trash rack around pipe to hold back larger debris particles.
Spillway erodes due to high velocity flows. Stabilize outlet with riprap or line spillway with plastic sheeting or geotextile blankets.
Slope sides erode. Stabilize slopes with rock, vegetation or equivalent method.
Accumulated sediment has built up. Remove sediment to recover holding capacity.
Drainage area is too large.
Ensure that the trap is designed to accommodate the inflow for the designed storm. Limit drainage contributing area.
Consider other or additional BMPs.
38 Tuesday, August 05, 2025 Reg CC MTG, Page *517
Check Dam SC-4
39 SC-4 CHECK DAM
A check dam is a small structure constructed of rock or gravel bags placed across a natural or man-made channel or drainage ditch. Check dams reduce scour and channel erosion by reducing flow velocity and encouraging sediment to settle out.
Applications
In small open channels that drain 4 ha (10 ac) or less
In steep channels where storm water r unoff velocities exceed 1.5 m/s (5 ft/s) In drainage ditches or channels in which grass linings are being established In temporary ditches where a short-term service do es not warrant establishment of erosion resistant linings
In combination with other BMPs such as sediment basins and traps Key Points
Key Point #1 – Installation
Install check dams 5 m (16 ft) from the outfall device and at regular intervals along the channel based on the erosion characteristics and slope degree of the drainage swale (Photo 1). Swales that are very steep or have a high potential of eroding require check dams placed closer together.
Key Point #2 – Dimensions
Check dams should be placed at a height and distance as to allow small pools to form behind them but allow high velocity flows (typically a 2-year storm or larger) to safely flow over them without an increase in upstream flooding or damage to the check dam. Check dams should be constructed to pond runoff flows so that the backwater from the downstream ch eck dam reaches the toe of the upstream dam (Photo 2).
Photo 1 Photo 2
Key Point #3 – Limitations
Check dams should not be placed in live streams or in channels that are already grass-lined unless erosion is expected, as existing vegetation may be damaged. Check dams are not appropriate in channels that drain areas greater than 4 ha (10 ac).
Tuesday, August 05, 2025 Reg CC MTG, Page *518
Check Dam SC-4
Key Point #4 – Inspection and Maintenance
Check dams require extensive maintenance after storm events or high velocity flows to repair damage (Photo 3). Remove sediment when it reaches 1/3 the check dam height.
Photo 3
Preventive Measures and Troubleshooting Guide
Field Condition: Common solutions are:
Too much sediment has accumulated. Remove accumulated sediment to recover holding capacity.
There is insufficient ponding area. Space check dams farther apart. Increase height of dam.
The check dam is higher than the drainage
channel.
Lower check dam so that it is 150 mm (6 in) lower than the channel side.
Check dams wash away.
Ensure that the drainage area is 4 ha (10 ac) or less.
Replace check dams. Consider adding more dams
upstream.
Wrong type of materials is used to construct
barrier .
Use heavier materials such as larger rocks. Do not use
straw bales or silt fence.
40 Tuesday, August 05, 2025 Reg CC MTG, Page *519
Fiber Rolls SC-5
SC-5 FIBER ROLLS
A fiber roll consists of straw, flax, or similar materi al that is rolled and bound into a tight tubular cylinder and placed at regular intervals on a slope face. Fiber rolls intercept runoff, reduce runoff flow velocity, and release the runoff as sheet flow. Fiber rolls are also used as a filter to remove sediment from runoff.
Applications
Along the top, face, and at grade breaks of exposed and erodible slopes Key Points
Key Point #1 – Installation
Proper fiber roll installation is crucial to ensure effectiveness and performance. Fiber rolls should be placed on a level contour in a shallow trench with a maximum depth of 50 mm to 100 mm (2 in to 4 in).
The fiber roll should be staked at each end and at regular intervals along its length with a maximum distance of 1.2 m (4 ft) between stakes. If more than one fiber roll is placed in a row, the ends of the adjoining rolls should be tightly abutte d together and not overlapped (Photo 1).
Key Point #2 – Vertical Spacing
When used to create storm water benches on a slope, the vertical spacing of the fiber rolls rows is determined by the inclination and length of the slope (Photo 2). For slopes 1:2 (V:H) and steeper and 15 m (50 ft) and greater, fiber rolls shall be placed at intervals no greater than 7.5 m (25 ft). For slopes between 1:20 (V:H) and 1:2 (V:H) and 30 m (100 ft) and greater, fiber rolls shall be placed at intervals no greater than 15 m (50 ft).
Photo 1 Photo 2
Key Point #3 – Sediment Control
Fiber rolls are acceptable for use as sediment control and may be used in conjunction with other soil stabilization methods (soil binders, mulches, et c.) (Photo 3) and/or other sediment controls.
Key Point #4 – Removal
Fiber rolls are typically left in place. If they are re moved, dispose of the accumulated sediment and fill in trenches, holes, or depressions to blend in with adjacent ground contours. 41 Tuesday, August 05, 2025 Reg CC MTG, Page *520
Fiber Rolls SC-5
Key Point #5 – Inspection and Maintenance
Inspect fiber rolls prior to and after rain events, a nd at least daily during prolonged rainfall. Maintenance includes replacing slumping rolls, removing accumulated sed iment, and filling in rills. If fiber rolls split, tear (Photo 4), unravel, or become ineffective, replace them immediately.
Photo 3 Photo 4
Preventive Measures and Troubleshooting Guide
Field Condition: Common solutions are:
Runoff flows under the fiber roll or daylight shows
under fiber roll.
Trench-in rolls to a depth of 100 mm (4 in) and stake. Place compacted soil along the uphill side of the fiber roll.
Runoff flows along fiber roll and discharges
around ends.
Make sure rolls are placed on a level contour and turn ends of fiber rolls up-slope.
Runoff flows between fiber rolls. Ensure that fiber rolls are butted tightly together and staked.
There is excessive sediment accumulation. Remove accumulated sediment. Apply soil stabilization measures to contributing areas.
Length of slope draining to fiber roll is too long. Place fiber rolls at shorter intervals. The steeper the slope, the closer together the fiber rolls should be placed.
42 Tuesday, August 05, 2025 Reg CC MTG, Page *521
Gravel Bag Berm SC-6
43 SC-6 GRAVEL BAG BERM
A gravel bag berm consists of a single row of gravel bags that are installed end-to-end to form a barrier across a slope to intercept runoff, reduce runoff velocity, release runoff as sheet flow, and provide some sediment removal.
Applications
Along the top, face, and at grade breaks of exposed and erodible slopes Key Points
Key Point #1 – Installation
Proper gravel bag berm installation is crucial to ensure its effectiveness and performance. Gravel bag berms should be placed on a level contour along the slope (Photo 1). Gravel bags should be tightly abutted together and not overlapped (Photo 2).
Photo 1 Photo 2
Key Point #2 – Bag Design
Bags should be made of a woven polypropylene, polyethylene or polyamide fabric, or burlap material.
When full, a bag should be 450 mm (1.5 ft) long, 300 mm (1 ft) wide, and 75 mm (3 in) thick, with a mass of approximately 15 kg (35 lb). Bag dimensions are standardized but may vary based on locally available materials. Alternative bag sizes shall be subm itted to the Resident Engineer for approval prior to deployment. Fill material shall be 13 mm to 25 mm (1/2 in to 1 in) class 2 aggregate base that is clean and free from clay and undesirable materials.
Key Point #3 – Sediment Control
Although gravel bag berms remove some sediment, they should not be used in place of linear sediment barriers.
Key Point #4 – Limitations
Gravel bags are sensitive to ultraviolet light resulting in a limited durability that may make them unsuitable for long-term projects. Gravel bag berms are labor intensive. Installation, removal, and maintenance costs should be evaluated when considering this BMP.
Key Point #5 – Inspection and Maintenance
Inspect gravel bag berms weekly and prior to and af ter rainfall events during the rainy season. Repair or replace broken or ripped bags, and reshape as necessar y. Remove accumulated sediment when it reaches 1/3 the height of the berm. Repair washouts and rills as needed.
Tuesday, August 05, 2025 Reg CC MTG, Page *522
Gravel Bag Berm SC-6
Preventive Measures and Troubleshooting Guide
Field Condition: Common solutions are:
Runoff flows under the bags.
Ensure that bags are placed completely on the soil surface and not overlapped. Butt the bag ends together tightly.
Repair rills and washouts.
Runoff flows around ends of bag rows. Make sure that bags are placed on a level contour. Turn up ends of each row.
Runoff flows between bags. Ensure that gravel bags are butted tightly together.
There is excessive sediment accumulation. Remove accumulated sediment. Apply soil stabilization measures to contributing areas
Length of slope draining to gravel bag berm is too
long.
Place berm at shorter intervals. The steeper the slope, the closer together the berms should be placed.
44 Tuesday, August 05, 2025 Reg CC MTG, Page *523
Street Sweeping and Vacuuming SC-7
SC-7 STREET SWEEPING AND VACUUMING
Street sweeping and vacuuming are practices to remove tracked sediment from public roads in order to prevent sediment and dirt from entering storm drains or receiving waters. Areas of concern include ingress and egress points, portions of roadway within the project limits adjacent to a freeway or other public road, and any other paved surface within project limits that is to remain after construction is complete.
Applications
Where sediment is tracked onto public or private roadways from the project site Key Points
Key Point #1 – Sweepers
Sweepers should have vacuum or other mechanical attachments for collecting dirt and sediment (Photo 1). Adjust brooms regularly to maximize efficiency of sweeping operations. Never use kick brooms or sweeper attachments for the implementation of this BMP.
Key Point #2 – Inspection
Inspect project ingress and egress points and roadways daily for signs of tracked sediment (Photo 2).
Photo 1 Photo 2
Key Point #3 – Sweeping Waste Disposal
After sweeping is finished, properly dispose of sweeper waste. Sweeper waste that includes trash and debris should be disposed of at an approved dumpsite. For collected sediment that is free of trash and debris, consider incorporating the sediment b ack into the projects earthwork operations.
Key Point #4 – Site Entrances and Exit
Designate a limited number of centralized ingress/egress locations for the site and instruct construction personnel to use only those locations for entering/exiting the project (see TC-1). 45 Tuesday, August 05, 2025 Reg CC MTG, Page *524
Street Sweeping and Vacuuming SC-7
Preventive Measures and Troubleshooting Guide
Field Condition: Common solutions are:
Sediment tracking is excessive. Install a stabilized construc tion entrance/exit at egress point.
Sweeper is not picking up sediment. Adjust sweeper brooms to maximize efficiency of sweeping operations.
Sweeping causes excessive dust.
Use a sweeper with a vacuum attachment. Use sweeper
with water spray device to reduce dust. Never use kick
brooms or sweeper attachments.
Sediment is being tracked from many areas of the
job site.
Limit egress and ingress locations and instruct personnel to use designated centralized entrance/outlet locations.
46 Tuesday, August 05, 2025 Reg CC MTG, Page *525
Sandbag Barrier SC-8
SC-8 SANDBAG BARRIER
A sandbag barrier is a temporary linear sediment barrier constructed of stacked sandbags. This type of barrier is designed to intercept and slow storm wa ter sheet flow runoff. Sandbag barriers allow sediment in runoff to settle before the water leaves the construc tion site. Sandbag barriers can also be used to divert and detain moderately concentrated flows associated with ditches, swales, and storm drain inlets.
Applications
Along the perimeter of a site
Below the toe of slopes as required
Down slope of exposed soil areas
Around temporary stockpiles as required
Parallel to a roadway to keep sediment from paved areas To divert or direct flow
Key Points
Key Point #1 – Installation
When used as a linear sediment barrier for slopes, sandbags should be placed along a level contour with the end of each row turned up-slope to prevent fl ow around the ends. Due to the limited sediment holding capacity behind the bags, they should be used in conjunction with other erosion source controls such as soil binders, covers, and/or mulches to provide effective control.
Key Point #2 – Setback
A sandbag barrier should be placed with a setback of at least 1 m (3 ft). Where a 1 m (3 ft) setback is not practicable due to site conditions, the barrier may be constructed at the toe of slope but should be placed as far from the toe as practicable to increase th e ponding area and allow sediment to settle out.
Key Point #3 – Configuration
Sandbags should be stacked in a pyramid formation (Photo 1). To do this, the base of the barrier should be the widest, with the width decreasing with each higher row. The joints between bags should be staggered for each row.
Photo 1
47 Tuesday, August 05, 2025 Reg CC MTG, Page *526
Sandbag Barrier SC-8
Key Point #4 – Cross Barriers
For sandbag barriers not on a level contour and for longe r reaches, install cross barriers at a minimum of 150 m (500 ft) intervals to prevent concentrated flow.
Key Point #5 – Limitations
Sandbag materials are sensitive to ultraviolet light resulting in a limited durability that may make them unsuitable for long-term projects. Sandbag barriers ar e labor intensive. Installation, removal, and maintenance costs should be evaluated when considering this BMP.
Key Point #6 – Inspection and Maintenance
Inspect sandbag barriers weekly and prior to and afte r rainfall events during the rainy season. Repair or replace broken or ripped bags, and reshape as necessar y. Remove accumulated sediment when it reaches 1/3 the barrier height. Repair washouts and rills as needed. When no longer needed, remove the barrier and accumulated sediment then clean, re-grade, and stabilize the area.
Preventive Measures and Troubleshooting Guide
Field Condition: Common solutions are:
There is excessive sediment accumulation.
Remove sediment. Apply Hydraulic Mulch (SS-3) or Straw
Mulch (SS-6) or other soil stabilization BMP upstream to reduce sediment in runoff.
Concentrated flows causes erosion to occur behind
barriers. Place cross barrier check dams behind the barrier.
Length of slope draining to sandbag barrier is too
long. Slope shall be 61 m (200 ft) or less. Shorten slope length using Fiber Rolls (SC-5) or equivalent.
Storage capacity is inadequate due to sediment
buildup.
Remove accumulated sediment when it reaches 1/3 the
barrier height.
There is insufficient ponding area.
Sandbag barrier should be installed with at least a 1 m (3 ft) setback from the toe of slope wh ere possible. Divert flow at top of slope.
Erosion occurs around barrier ends. Turn ends of barriers into the up-slope area.
Sandbag barrier is not installed along level enough
contour.
Reinstall barrier so that change in elevation does not exceed 1/3 the barrier height along its reach or install cross barriers.
Slope draining to barrier is too steep. Slope shall be
less than 1:1 (V:H).
Shorten slope length using Fiber Rolls (SC-5) or equivalent.
Increase setback of sandbag barrier from the toe of slope.
Incorrect sandbag material, size or fill material is
being used.
Require the contractor to use th e specified bag material, size, and fill material.
Sandbags rupture or degrade. Replace bags. Clean up and remove any spilled material.
Cross barriers are not installed or are installed
incorrectly.
Place cross barriers on the receiving side of the barrier at a maximum separation of 150 m (500 ft). Cross barrier should be a minimum of 1/2 and a maximum of 2/3 the barrier
height.
48 Tuesday, August 05, 2025 Reg CC MTG, Page *527
Straw Bale Barrier SC-9
SC-9 STRAW BALE BARRIER
A straw bale barrier is a temporary linear sediment barrier constructed of straw bales. This type of barrier is designed to intercept and slow storm water runoff. Straw bale barriers allow sediment in runoff to settle before water leaves the construction site.
Applications
Along the perimeter of a site
Below the toe of slopes as required
Down slope of exposed soil areas
Around temporary stockpiles as required
Key Points
Key Point #1 – Installation
When used as a linear sediment barrier for slopes, straw bales should be placed along a level contour with the end of each row turned up-slope to prevent fl ow around the ends. Bales should be installed in a shallow trench with ends tightly abutted together.
Key Point #2 – Setback
Straw bales placed at the toe of slopes should be set b ack at least 1 m (3 ft) from the toe. Where a 1 m (3 ft) setback is not practicable due to site conditions, th e barrier may be constructed at the toe of the slope but should be placed as far from the toe as practicab le to increase the ponding area and allow sediment to settle out.
Key Point #3 – Configuration
Straw bales should be placed in two rows back to back with a half-bale offset to cover the butted ends of the bales.
Key Point #4 – Cross Barriers
For straw bale barriers not on a level contour and for longer reaches, install cross barriers at a minimum of 150 m (500 ft) intervals to prevent concentrated flow.
Key Point #5 – Application Limitations
Straw bale barriers should not be used in areas subj ect to highly concentrated flows (Photo 1) such as channels or live streams as they may be easily overtak en or washed away. Straw bale barriers should not be used on paved surfaces, in lined ditches, or for drain inlet protection. Consider using sandbag barriers instead.
Photo 1
49 Tuesday, August 05, 2025 Reg CC MTG, Page *528
Straw Bale Barrier SC-9
Key Point #6 – Durability Limitations
Straw bales fall apart when removed or degrade when left in place for extended periods. They can be labor intensive to install, remove, and maintain.
Key Point #7 – Inspection and Maintenance
Inspect straw bale barriers weekly and prior to and af ter rainfall events during the rainy season. Repair or replace broken or damaged bales as necessary. Remove accumulated sediment when it reaches 1/3 the barrier height. Repair washouts or other damage as needed or required. When no longer needed, remove barrier and accumulated sediment then cl ean, re-grade, and stabilize the area.
Preventive Measures and Troubleshooting Guide
Field Condition: Common solutions are:
There is excessive sediment accumulation.
Remove sediment. Apply Hydraulic Mulch (SS-3) or Straw
Mulch (SS-6) or other BMP upstream to reduce sediment in runoff.
Concentrated flows causes erosion to occur behind
barriers
Place cross barrier check dams behind the barrier. Make sure the barrier is along a level contour. Ensure that stakes are angled toward adjacent bales so that they are held down together.
Bottom of barrier is not properly keyed in . Trench and replace bales and backfill.
Length of slope draining to barrier is too long.
Slope shall be 30 m (100 ft) or less. Shorten slope length using Fiber Rolls (SC-5) or equivalent.
Storage capacity is inadequate due to sediment
buildup.
Remove accumulated sediment when it reaches 1/3 the
height of the barrier.
There is insufficient ponding area.
Barrier should be installed with at least a 1 m (3 ft) setback from the toe of slope where possible. Divert flow at top of slope.
Erosion occurs around barrier ends. Turn ends of barriers into the up-slope area.
Bale binding degrades and breaks. Replace degraded bales. Place bales so that the bindings are parallel to the ground.
Barrier is not installed along level enough contour. Reinstall barrier so that change in elevation does not exceed 1/3 the barrier height along its reach or install cross barriers.
Slope draining to straw bale barrier is too steep.
Slope shall be less than 1:10 (V:H).
Shorten slope length to 15 m (30 ft) or less using Fiber Rolls (SC-5) or equivalent. Increase setback of barrier from the toe of slope.
Straw bale barrier is installed in concentrated flow
area.
Replace straw bale barrier with proper BMP such as Check Dams (SC-4), if appropriate.
Cross barriers are not installed or are installed
incorrectly.
Place cross barriers on the receiving side of the barrier at a maximum separation of 150 m (500 ft). Cross barrier should be a minimum of 1/2 and a maximum of 2/3 the barrier
height.
50 Tuesday, August 05, 2025 Reg CC MTG, Page *529
Storm Drain Inlet Protection SC-10
SC-10 STORM DRAIN INLET PROTECTION
Storm drain inlet protection is a practice to redu ce sediment from storm water runoff discharging from the construction site prior to entering the storm drain sy stem. Effective storm drain inlet protection allows sediment to settle out of water or filters sediment fro m the water before it enters the drain inlet. Storm drain inlet protection is the last line of sediment control defense prior to storm water leaving the construction site.
Applications
Where storm water surface runoff can enter a drain inlet Where disturbed drainage areas have not yet been permanently stabilized Where ponding will not encroach into traffic
Where the drainage area is 4 ha (10 ac) or less
Key Points
Key Point #1 – Identify Drain Inlets
Identify existing and/or planned storm drain inlets th at have the potential to receive storm water runoff and discharge from the construction site. For those drai n inlets that are to be protected, determine the most effective method to use. Consider drain inlet protection for active inlets that are downstream of DSAs.
Key Point #2 – Sandbag Barriers
A sandbag barrier (Photo 1) is the most common type of protection due to the flexibility of its use.
Sandbag barriers are constructed by placing the bags around the inlet to create a holding area that allows suspended sediment to settle.
Photo 1
Key Point #3 – Filter Fence
A filter fabric fence (Photo 2) is effective in open areas where sheet flows are low and are not expected to exceed 0.14 m3
/s (0.5 cfs). Filter fabric fences are installed similarly to silt fences but are constructed to surround the inlet to create an enclosure. Use plastic sheeting or geotextile blankets to stabilize any DSAs within the enclosure to prevent sediment within the enclosed area from entering the inlet. 51 Tuesday, August 05, 2025 Reg CC MTG, Page *530
Storm Drain Inlet Protection SC-10
Photo 2
Key Point #4 – Sediment Traps
Excavated drop inlet sediment traps are typically u sed where relatively heavy flows are expected and overflow capacity is needed. A drain inlet sedimen t trap is constructed by excavating the soils surrounding the inlet to create a temporary trap that detains flows and allows suspended sediments to settle before storm water is discharged from the site.
Key Point #5 – Inspection
Inspect all inlet protection devices before and afte r storm events, at 24 hour intervals during extended storms, and weekly during the rest of the rainy season. Check storm drain inlet after several storms to determine if sediment is bypassing inlet protection devices.
Key Point #6 – Maintenance
Maintenance is critical to ensure that drain inle t protection remains functional. Remove accumulated sediment when it reaches 1/3 the barrier height or 1/3 the holding capacity. For barriers, replace broken or torn bags. For fences, repair/replace fencing ma terial and re-stake fences that are damaged.
Preventive Measures and Troubleshooting Guide
Field Condition: Common solutions are:
Excessive sediment is entering the inlet.
Ensure that soil stabilization and sediment control devices are installed upstream of inlets. Ensure that the barriers around the inlet are installed correctly. Sandbags need to be tightly abutted. Filter fence needs to be keyed in so that water goes through filter fabric and not under it. Ensure that disturbed soil inside the protective device is prevented from entering drain by covering with plastic.
Material from broken bags is entering inlet. Clean out inlet. Remove broken bags and replace as necessary.
Ponded water causes a traffic concern. Use alternative BMPs upstream. Remove drain inlet protection if necessary.
52 Tuesday, August 05, 2025 Reg CC MTG, Page *531
Wind Erosion Control WE-1
WIND EROSION CONTROL
WE-1 WIND EROSION CONTROL
Wind erosion control consists of applying water or other dust palliativ es to prevent or alleviate dust nuisance. Dust control shall be applied in accordance with Caltrans standard practices.
Applications
On all exposed soils that are subject to wind erosion
Key Points
Key Point #1 – Dust Control Operation
Care should be taken when applying water (Photo 1) or palliative to prevent the washing of sediment offsite or into storm drains or receiving waters. Do not apply so much that runoff occurs.
Photo 1
Key Point #2 – Stockpile and Small Area Management
Cover small stockpiles or small DSAs as an alternative to applying water or dust palliative.
Key Point #3 – Palliative Application Rates
When applying palliatives or binders as a wind er osion control, refer to the manufacturers recommendations for guidance.
Preventive Measures and Troubleshooting Guide
Field Condition: Common solutions are:
Excessive dust leaves the site. Increase frequency of water application. Consider using a palliative or binder on inactive areas.
Vehicles kick up dust. Water more frequently. Limit vehicle speeds. Stabilize the roadway.
Watering for dust control causes erosion
Reduce water pressure on the water truck. Check watering equipment to ensure that it has a positive shutoff. Water less frequently.
Sprayed areas are ineffective at limiting dust. Re-spray areas and ensure that the application rate is proper. 53 Tuesday, August 05, 2025 Reg CC MTG, Page *532
Stabilized Construction Entrance/Exit TC-1
TRACKING CONTROL
TC-1 STABILIZED CONSTRUCTION ENTRANCE/EXIT
Stabilized construction access is a defined point of entran ce/exit to a construction site that is stabilized to reduce the tracking of sediment (mud and dirt) onto public roads by construction vehicles. Stabilized construction entrances are an effective method for reducing tracking of sediment from the construction site.
Applications
As a preventive method instead of a treatment method (e.g., sweeping or dust control) Where dirt or mud can be tracked onto public roads
Adjacent to water bodies
Where poor soils are encountered
Key Points
Key Point #1 – Design
Site conditions may dictate the design and need for access points. Design a stabilized construction entrance/exit to support the heaviest vehicles and equipment that will use it (Photo 1). The access point should be at least 15 m (50 ft) in length or four times the circumference of the largest construction vehicle tire, whichever is greater (Photo 2). Designate access points and require all employees, subcontractors, and others to use them.
Photo 1 Photo 2
Key Point #2 – Grading
Grade construction entrance/exit points to prevent r unoff from leaving the construction site. Route runoff from entrances/exits through a sediment-trapping device before discharge.
Key Point #3 – Aggregate Characteristics
Stabilize the roadway with aggregate, AC, or PCC, depending on expected usage and site conditions.
When access points are constructed from aggregate, aggregate should be 75 mm (3 in) to 150 mm (6 in) in diameter and at least 300 mm (1 ft) in depth. Place aggregate over a geotextile fabric.
Key Point #4 – Alternative Stabilization Methods
Alternative stabilization methods such as manufactured steel plates (Photo 3) or steel pipes/gratings require written approval of the Resident Engineer. The use of cold mix asphalt or AC grindings is not allowed.
54 Tuesday, August 05, 2025 Reg CC MTG, Page *533
Stabilized Construction Entrance/Exit TC-1
Key Point #5 – Inspection and Maintenance
Inspect and maintain stabilized construction entr ance/exit points. Routinely check for damage and effectiveness (Photos 4 and 5). Remove accumulated sediment (Photo 6) and/or replace stabilization material as needed.
Photo 3 Photo 4
Photo 5 Photo 6
Preventive Measures and Troubleshooting Guide
Field Condition: Common solutions are:
Access points require constant maintenance. Select proper stabilization mate rial or consider alternate methods for longevity, performance and site conditions.
Stabilization material (aggr egate) is tracked onto
roadway.
Limit larger vehicles from construction exit or use larger diameter material.
Aggregate material is being inco rporated into soil. Use geotextile fabric under base material.
Excessive sediment is tracked onto roadway. Increase length of stabilized exit. Regularly maintain access area to remove sediment buildup.
Sediment-laden water is leaving the construction
site.
Properly grade access point to prevent runoff from leaving site. Route runoff through a sediment-trapping device.
Sediment is being tracked from numerous
locations.
Limit access points and require their use. Stabilize
designated access points.
55 Tuesday, August 05, 2025 Reg CC MTG, Page *534
Stabilized Construction Roadway TC-2
TC-2 STABILIZED CONSTRUCTION ROADWAY
A stabilized construction roadway is a temporary access road that connects existing public roads to remote construction areas. For storm water protection, it should be designed to control dust and erosion created by vehicular traffic.
Applications
Where displacement of soil occurs because of vehicular traffic during wet weather Where dust control is a problem during dry weather
Adjacent to water bodies
Where poor soils are encountered
Key Points
Key Point #1 – Design
Site conditions may dictate the design and need for stabilized construction roadways. Design the roadway to support the heaviest vehicles and equipment that will use it. Grade the road way to prevent runoff from leaving the construction site. This may require the c onstruction of a drainage ditch to collect and convey runoff.
Key Point #2 – Stabilization Materials
Stabilize the roadway with aggregate, AC, or concre te, depending on expected usage and site conditions.
Aggregate diameter should be between 75 mm (3 in) and 150 mm (6 in) and at least 300 mm (1 ft) in depth. Place aggregate over a geotextile fabric. The use of cold mix asphalt or AC grindings is not allowed.
Key Point #3 – Inspection and Maintenance
Inspect and maintain the stabilized construction roadway routinely. Re-grade the roadway as necessary.
Check for damage and repair as necessary or as directed by the Resident Engineer.
Preventive Measures and Troubleshooting Guide
Field Condition: Common solutions are:
Runoff leaves the site via the roadway. Properly grade roadway so that runoff is kept on site. Install a drainage ditch along roadway to convey flows.
Roadway degrades or breaks up.
Re-grade roadway using material that will support the
heaviest vehicles that will use the road. Stabilize roadway with AC, concrete base, aggregate, or equivalent.
Vehicles kick up dust. Re-stabilize the roadway.
56 Tuesday, August 05, 2025 Reg CC MTG, Page *535
Water Conservation NS-1
NON-STORM WATER MANAGEMENT
NS-1 WATER CONSERVATION
Water conservation involves the use of practices that reduce the amount of water used for a given activity.
If less water is used, the potential for erosion decreases and the transport of construction-related pollutants offsite is less likely.
Applications
On all projects where water is used during the course of construction Key Points
Key Point #1 – Watering Equipment
Watering equipment should be kept in good working order (Photo 1). Repair leaky watering equipment promptly.
Photo 1
Key Point #2 – Equipment Washing
Discourage the washing of vehicles and equipment on the construction site. Workers should never wash their personal vehicles on site. Vehicles and equipment th at regularly leave the construction site should be washed offsite.
Key Point #3 –Paved Areas
Paved areas should be swept and vacuumed rather than washed off. Always protect storm drain inlets or receiving waters from sediment or other pollutants suscep tible to non-storm water run-off. When possible, direct runoff water to areas where it can percolate into the ground.
Key Point #4 – Dust Control
When watering for dust control, ensure that watering operations do not cause erosion. 57 Tuesday, August 05, 2025 Reg CC MTG, Page *536
Water Conservation NS-1
Preventive Measures and Troubleshooting Guide
Field Condition: Common solutions are:
Water tank leaks from the outlet valve. Repair the positive shutoff valve.
Watering equipment overflows during filling
creating muddy and rutted areas.
Do not overfill. Use other BMPs to stabilize the roadway around the filling area e.g. Stabilized Construction Roadway (TC-2).
Paved areas are being washed with water. Sweep and vacuum paved areas per Street Sweeping and Vacuuming BMP (SC-7).
Watering for dust control causes erosion. Apply soil stabilization or dust palliative to slopes and reduce water frequency.
58 Tuesday, August 05, 2025 Reg CC MTG, Page *537
Dewatering Operations NS-2
NS-2 DEWATERING OPERATIONS
This BMP is intended to prevent the discharge of pollutants from construction site dewatering operations associated with storm water (accumulated rain ) and non-storm water (groundwater, water from a diversion or cofferdam, etc.). Dewatering effluent that is discharged from the construction site to a storm drain or receiving water is subject to the requireme nts of the applicable National Pollutant Discharge Elimination System (NPDES) permit. Refer to the Caltrans Field Guide to Construction Site Dewatering for detailed guidance for management of dewatering operations. The District Construction Storm Water Coordinator is also available for assistance.
Applications
On all projects where the discharge of wa ter is to occur by mechanical means Key Points
Key Point #1 – Management Alternatives
If possible, the contractor should consider managing dewatering without discharge to a storm drain or receiving water. Options include: (1) retaining the wate r on site for construction use or allowing water to evaporate/infiltrate, (2) discharging to the sanitary sewer with permission from the local agency; (3) discharging to an adjacent land or facility with permission of the owner, and (4) having the effluent transported and disposed of offsite using a Transportation, Storage & Disposal (TSD) contractor. If one of these management options is used, the water is not di scharged to a storm drain or receiving water, and the operation is not subject to an NPDES permit.
Key Point #2 – Notify CSWC
If on-site management of the dewa tering operation is not the selected option, contact the Construction Storm Water Coordinator (CSWC) befo re the dewatering operation commences.
Key Point #3 – Dewatering Under the Caltrans General NPDES Permit In many areas of the state, uncontaminated storm water and minor discharges of non-storm water can be discharged to a storm drain or receiving water under the Caltrans General NPDES Permit. If the effluent is not visibly clear, it must be treated to remove sediment prior to discharge (Photo 1). All records related to the dewatering operation must be maintained w ith the project SWPPP and provided to the Regional Water Quality Control Board (RWQCB) upon request. No te that in RWQCB Region 1 and 2, no type of dewatering discharge to a storm drain or receiving water is authorized under the Caltrans NPDES Permit a separate Regional dewatering permit is required.
Key Point # 4 – Dewatering Under a Regional Dewatering Permit For all dewatering discharges in RWQCB Regions 1 and 2 (North Coast and San Francisco Bay areas), and for many discharges of non-storm water dewateri ng (Photo 2) in all other Regions, the RWQCB must approve a discharge to a storm drain or receiving water. The RWQCB may require the contractor to apply to discharge under a separate Regional dewatering pe rmit or under a site-specific dewatering permit.
Regional dewatering permits generally require the contractor to monitor (test) the dewatering effluent, to maintain monitoring records, and to submit re ports to the RWQCB about the operation. Discuss dewatering requirements with the District Construction Storm Water Coordinator. 59 Tuesday, August 05, 2025 Reg CC MTG, Page *538
Dewatering Operations NS-2
Photo 1 Photo 2
Preventive Measures and Troubleshooting Guide
Field Condition: Common solutions are:
Discharge of treated water causes erosion. Install outlet protection or velocity dissipation device (SS-10).
Treatment unit fills with sediment. Remove sediment when unit reaches 1/3 its capacity to preserve settling efficiency.
Dewatering discharge flow is higher than
expected.
Alter the treatment unit to handle increased flow. Notify the RWQCB and District Construction Storm Water
Coordinator of the increased flow before resuming
dewatering operation.
Water spread on the construction site is not
infiltrating fast enough and is entering the storm
drain system or receiving water.
Stop dewatering. Install a sediment treatment system and test discharge as necessary.
60 Tuesday, August 05, 2025 Reg CC MTG, Page *539
Paving and Grinding Operations NS-3
NS-3 PAVING AND GRINDING OPERATIONS
Paving and Grinding Operations include the handling of materials and wastes and the use of equipment associated with pavement preparation, paving, gri nding, removal, surfacing, resurfacing, thermoplastic striping, and placing pavement markers.
Application
During pavement grinding and removal
During PCC paving
During AC paving and resurfacing
During placement of thermoplastic striping and pavement markers Key Points
Key Point #1 – Asphalt Concrete (AC)
Remove or dispose of grindings and wastes as work progresses. Place AC pieces in embankments above the water table and cover with plastic until they are removed from the site. Remove wastes from the site immediately.
Key Point #2 – AC Equipment
Coat AC equipment with non-toxic non-foaming produc ts. Clean equipment (Photo1) offsite whenever possible. When paving equipment is kept onsite, pl ace paving equipment on plastic sheeting to capture drips or leaks (Photo 2). Dispose of hardened AC properly.
Photo 1 Photo 2
Key Point #3 – Wastes
Do not allow wastes, such as AC pieces, PCC gri nding residue/slurry (Photo 3), sand/gravel, exposed aggregate concrete residue, or dig-out materials in to storm drains or receiving waters. Sweep, vacuum, and collect such wastes and recycle or dispose of properly.
Key Point #4 – Seal Coats
Do not apply seal coat, tack coat, slurry seal, or fog seal if rain is predicted during the application or curing period. Do not conduct digout operations in the rain. During application of seal coat, tack coat, slurry seal, or fog seal, cover drainage inlets and ma nhole covers with filter fabrics. Do not apply these materials in the rain.
61 Tuesday, August 05, 2025 Reg CC MTG, Page *540
Paving and Grinding Operations NS-3
Photo 3
Key Point #5 – Thermoplastic Striping
Verify that equipment shut-off valves function properly to avoid thermoplastic leakage. Do not pre-heat, transfer, or load thermoplastic near storm drains or receiving waters. When filling the pre-heater, leave 150 mm (6 in) of space at the top of the container to prevent spills when the equipment is moved. Clean truck beds daily and recycle thermoplastic material when possible.
Key Point #6 – Raised/Recessed Pavement Markers
Do not transfer or load bituminous materials near storm drains or receiving waters. Verify that all pressure is released before filling melting tank. When filling the melting tank, leave 150 mm (6 in) of space at the top of the container to prev ent spills when the equipment is moved.
Preventive Measures and Troubleshooting Guide
Field Condition: Common solutions are:
Paving equipment leaks while parked.
Clean up spilled or leaked material. Place drip pans, plastic sheeting or absorbent materials under parked equipment
when not in use.
Loose gravel and sand deposit on roadway from
paving operations.
Sweep streets when practical. Minimize washing. If
washing is necessary, protect inlets and receiving waters during operations.
Water residue from grinding and saw cutting
operations enters inlet.
Clean inlet and recover as much material as possible. Use a vacuum attachment to capture concrete slurry residue.
Block inlet. Notify the District Construction Storm Water Coordinator about the potential for a non-compliant
incident.
Seal coat, tack coat, and fog seal wash off streets.
Allow for proper curing time before rain events. Do not apply before or during predicted rainfall. Protect drain inlets.
Operators use diesel fuel to clean equipment. Use only non-toxic substances to coat and clean paving and transport equipment.
Seal coat, tack coat, and fog seal enter inlets.
Clean inlets and collect as much material as possible. Cover inlets with filter fabric. Notify the District Construction Storm Water Coordinator about the potential for a noncompliant incident. 62 Tuesday, August 05, 2025 Reg CC MTG, Page *541
Temporary Stream Crossing NS-4
NS-4 TEMPORARY STREAM CROSSING
A temporary stream crossing is a structure placed acro ss a waterway that allows construction traffic to cross without contacting the water. Typical types include culvert crossings, ford crossings, and bridge crossings. Temporary stream crossings prevent str eambed erosion and downstream sedimentation due to construction traffic.
Applications
Where appropriate permits have been secured
Where construction equipment or vehicles must cross a waterway (ephemeral or perennial) Key Points
Key Point #1 – Permits
Verify that applicable permits have been obtained before the stream crossing is installed. Required permits may include RWQCB 401 Certification, U.S. Army Corps of Engineers 404 Permit, and/or Department of Fish and Game 1601 Agreement. Ve rify that applicable pre-installation water sampling/testing has been completed before, and possibly during, installation.
Key Point #2 – Design
Verify that the structure design has been prepared unde r the direction of and approval of a registered civil and/or structural engineer. The structure should not constrict waterway flow such that backups or washouts occur during flood events. Culverts are accepta ble for perennial or intermittent streams and can accommodate heavy equipment loads. Fords are the least expensive but are acceptable only for dry washes/ephemeral streams during the dry season. Bridges (Photo 1) are the most expensive but are appropriate for high velocity/steep gradient streams or where restrictions in the waterway channel are not allowed.
Photo 1
Key Point #3 – Installation
Construct crossings during the dry season. Stabilize adjacent construction roadways, work areas, and streambeds to prevent erosion. Minimize disturbance or removal of adjacent vegetation. If riparian vegetation is disturbed for construction of the stream crossing, the vegetation should be cut no lower than ground level and covered with a layer of clean river cobble. 63 Tuesday, August 05, 2025 Reg CC MTG, Page *542
Temporary Stream Crossing NS-4
Key Point #4 –- Use
Vehicles are not to be operated, stored, fueled, or main tained in wet or dry portions of a waterway without authorization of the Resident Engineer or as authorized by the Fish and Game Permit. Drip pans must be placed under all vehicles/equipment on temporary stream crossing structures that remain idle for more than one hour. Being in such close proximity to a watercourse, this BMP, and others implemented with it, must be installed correctly and maintained to prevent any discharge. Any incident of discharge requires submittal of a Notice of Non-Compliance.
Key Point #5 – Inspection and Maintenance
Inspect temporary stream crossings weekly and afte r significant rain events for water flow blockage, sediment buildup, trapped debris, structural damage, ri prap displacement, or streambed erosion. Verify that sediment buildup is removed regularly and that riprap/aggregate is replaced as needed to prevent erosion and maintain stability of adjacent areas.
Key Point #6 – Removal
Ensure that temporary stream crossings are rem oved promptly when no longer needed. Remove river cobble from disturbed riparian vegetation to ensure rapid re-growth.
Preventive Measures and Troubleshooting Guide
Field Condition: Common solutions are:
Slopes of temporary earthen crossing erodes. Place rock layer on slope sides. Stabilize roadway at crossing.
Sediment and debris block culvert inlet. Remove sediment and debris as necessary to keep pipe open.
Pipe outlet causes erosion. Stabilize outlet with riprap or flared end section.
Overtopping occurs. Incorrect design. Redesign crossing and obtain approval (stamp) of registered civil and/or structural engineer. 64 Tuesday, August 05, 2025 Reg CC MTG, Page *543
Clear Water Diversion NS-5
NS-5 CLEAR WATER DIVERSION
A clear water diversion is a system of structures that intercepts surface water from a running stream or waterway upstream of a project, transports it around the construction site, and discharges it downstream of the site, with minimal water quality impacts. Typical structures used for clear water diversions include diversion ditches, berms, dikes, slope drains, coffer dams, pipes, and drainage and interceptor swales.
Applications
Where appropriate permits have been secured
Where work must be performed in an active drainage system, a running stream, or a water body Key Points
Key Point #1 – Permits
Verify that applicable permits have been obtained be fore the diversion is installed. Required permits may include RWQCB 401 Certification, U.S. Army Corps of Engineers 404 Permit, Department of Fish and Game 1601 Agreement, and/or Federal Emergency Ma nagement Agency requirements. If required by a permit, verify that applicable pre-installation wa ter sampling/testing has been completed before, and possibly during, installation.
Key Point #2 – During Design
The structure should not constrict waterway flow such that backups or washouts occur due to fluctuations in water depth or flow volume. Materials used to c onstruct diversion structures must be free of potential pollutants such as soil, silt, sand, clay, grease, or oil. At all times during construction, operation, maintenance, and removal, sufficient water flow/ volume must be diverted to maintain downstream aquatic life (Photo 1).
Photo 1
Key Point #3 – During Construction
When possible, construct diversion structures during periods of low or no stream flow. Minimize disturbance and removal of adjacent vegetation. If ripa rian vegetation is disturbed for construction of the diversion, the vegetation should be cut no lower than ground level and covered with a layer of clean river cobble. The exterior of vehicles and equipment in we t areas of the diversion construction site should be free of petroleum residues and sealed so as to prevent leakage of fuels and oils into the water body if submerged. Only the bucket of an excavator/backhoe may operate in a water body. The main body of the equipment is not to enter the water portions of th e water body except to cross the stream to access the work site.
65 Tuesday, August 05, 2025 Reg CC MTG, Page *544
Clear Water Diversion NS-5
Key Point #4 – Operation
Barriers should be installed to prevent muddy wate r from flowing from adjacent construction activity to the stream. Drip pans must be placed under all st ationary equipment and vehicles located over water diversions that remain idle for more than one hour. Being in such close proximity to a watercourse, this BMP, and others implemented with it, must be installed correctly and maintained to prevent any discharge. Any incident of discharge requires submittal of a Notice of Non-Compliance.
Key Point #5 – Inspection and Maintenance
Inspect diversion structures weekly and after significant rain events for damaged linings, sediment buildup, trapped debris, or reduced slope protection. Ensure that debris is removed and linings are repaired promptly.
Preventive Measures and Troubleshooting Guide
Field Condition: Common solutions are:
Vehicles and equipment parked over water bodies
leak fluids.
Place drip pans under all vehicl es and equipment that are placed on structures over water bodies that will be idle for more than one hour.
Erosion occurs along diversion path. Protect diversion from erosion. Use rock, gravel, pipe or other BMP to protect diverted waterway.
66 Tuesday, August 05, 2025 Reg CC MTG, Page *545
Potable Water/Irrigation NS-7
NS-7 POTABLE WATER/IRRIGATION
Non-storm water discharges that originate from onsite and offsite sources must be properly managed to reduce the potential for pollutants being discharged from the construction site. Sources of these non-storm waters include broken water lines, landscape irrigati on, lawn watering, water line flushing, and fire hydrant flushing.
Applications
All projects susceptible to the above-listed and ot her non-storm water discharges from the construction site
Key Points
Key Point #1 – Divert Flows
Where possible, direct potable/irrigation water or iginating from offsite sources around the construction site or through the site in a way that mi nimizes contact with construction activities.
Key Point #2 – Onsite Irrigation
Inspect irrigated areas on the construction site for excessive watering (Photo 1). Adjust watering schedules to ensure landscaping receives adequate wa ter but minimizes associated runoff. Promptly shut off water to broken lines, sprinklers, or valves and repair as needed.
Photo 1
Key Point #3 – Water Conservation
Reuse water from line flushing for landscape irrigation.
Preventive Measures and Troubleshooting Guide
Field Condition: Common solutions are:
Irrigation line breaks and causes erosion.
Shut off water to broken lines. Protect downstream drain inlets or receiving waters by implementing sediment control BMPs. Repair or replace lines and repair erosion.
Water from irrigation operations causes runoff or
erosion.
Adjust watering schedule and times. Turn off sprinklers when they are no longer necessary to maintain vegetation.
Ensure that the irrigation system is operating correctly by verifying that sprinklers are directed appropriately and are not broken or leaking.
Discharge from line flushing causes erosion. Discharge water into a stabilized area or temporary sediment trap. Reuse water when practical.
67 Tuesday, August 05, 2025 Reg CC MTG, Page *546
Vehicle and Equipment Cleaning NS-8
NS-8 VEHICLE AND EQUIPMENT CLEANING
Wash water from vehicle and equipment cleaning is not to be discharged from construction sites because the rinse water may contain contaminates such as sed iment, petroleum/lubricant residues, soaps, or solvents that could enter storm drain systems or receiving waters.
Applications
All construction sites
Key Points
Key Point #1 – Offsite Cleaning
Equipment/vehicle cleaning should be conducted offsite. All vehicles that regularly enter and leave the construction site must be cleaned offsite.
Key Point #2 – Onsite Cleaning
For equipment that must be cleaned on site, the Reside nt Engineer must be notified in advance. All waste from onsite cleaning operations must be fully contai ned and disposed of outside the highway right-ofway.
Key Point #3 – Wash Area Requirements
The vehicle wash area must be properly identified by sign (Photo 1) and located away from storm drain inlets, drainage facilities, and watercourses. It must be paved with concrete (Photo 2) or asphalt and have a berm to contain runoff and prevent run-on. It must be equipped with a sump for the collection and disposal of wash water.
Photo 1 Photo 2
Key Point #4 – Water Conservation
Use as little water as possible and use a positive s hut-off valve to conserve on water usage. 68 Tuesday, August 05, 2025 Reg CC MTG, Page *547
Vehicle and Equipment Cleaning NS-8
Preventive Measures and Troubleshooting Guide
Field Condition: Common solutions are:
Workers clean personal vehicles on site. Personal vehicles and work trucks and/or equipment that regularly leave the site shall be cleaned offsite.
Wash water leaves the site. Contain wash water in a bermed area and dispose of water outside the right-of-way.
Washing occurs on a pervious surface.
Contain water in a concrete or paved bermed area. Place a sump in the wash area and transfer wash water to sanitary sewer system or temporary sediment trap. Never discharge wash water to storm drains or receiving waters.
Vehicle fluids are spilled onto the washrack.
Clean up spilled material and dispose of properly. Contain contaminated water and dispose of properly. Do not allow spilled material to flow to storm drain system.
69 Tuesday, August 05, 2025 Reg CC MTG, Page *548
Vehicle and Equipment Fueling NS-9
NS-9 VEHICLE AND EQUIPMENT FUELING
Potential fuel spills and leaks from vehicle/equipmen t fueling operations must be prevented from entering storm drain systems or receiving waters.
Applications
All construction sites
Key Points
Key Point #1 – Fuel Offsite
All vehicles and equipment that regularly enter and l eave the construction site should be fueled offsite.
Key Point #2 – Fueling Area Location
Designated fueling areas are selected by the contract or and approved by the Resident Engineer. The fueling area should be on level grade and must be at least 15 m (50 ft) downstream of storm drain facilities or receiving waters. The fueling area should be protected by a berm or dike to prevent storm water run-on and to prevent storm water from leaving the fueling area (Photo 1).
Photo 1
Key Point #3 – Spill Response
Absorbent spill clean-up materials and spill kits must be available in fueling areas and on fueling trucks.
Spills should be cleaned up immediately. Absorbent materials should be used on small spills. All used absorbent materials must be disposed of properly.
Key Point #4 – Leak Containment
Drip pans or absorbent pads must be placed under vehi cles/equipment if being fueled in areas other than a dedicated fueling area with an impermeable surface (Photo 2). 70 Tuesday, August 05, 2025 Reg CC MTG, Page *549
Vehicle and Equipment Fueling NS-9
Photo 2
Key Point #5 – Fueling Guidelines
Fueling operations are not to be left unattended. Fuel tanks are not to be topped off. Mobile fueling trucks must also follow BMP guidelines.
Key Point #6 – Fuel Nozzles
Fuel nozzles are to be equipped with automatic shut-off to control drips. Where required by Air Quality Management Districts, vapor recovery nozzles shall be used.
Preventive Measures and Troubleshooting Guide
Field Condition: Common solutions are:
Vehicles and equipment leak fuel. Do not top off vehicle fuel tanks. Repair immediately or remove problem vehicles or equipment from the project site.
Fueling tanks are not stored in temporary
containment facilities. Place fuel tanks in bermed temporary containment facility.
Fuel spills on ground.
Use absorbent material to clean up spill and dispose of used clean-up materials properly. Never hose down or bury spills.
If fuel spills on soil, clean up contaminated soil and dispose of properly.
71 Tuesday, August 05, 2025 Reg CC MTG, Page *550
Vehicle and Equipment Maintenance NS-10
NS-10 VEHICLE AND EQUIPMENT MAINTENANCE
Petroleum products, lubricants, solvents, and other po llutants related to vehicle/equipment maintenance must be prevented from entering storm drain systems or receiving waters.
Applications
All construction sites
Key Points
Key Point #1 – Offsite Storage and Maintenance
All vehicles and equipment that regularly enter and leave the construction site should be maintained offsite.
Key Point #2 – Maintenance Area Design
Designated vehicle maintenance areas must be at least 15 m (50 ft) downstream of storm drain facilities or receiving waters. For long-term projects, a porta ble tent or cover over the maintenance area is recommended.
Key Point #3 – Maintenance Operations
For maintenance involving fluids, place drip pans or absorbent pads under the vehicle unless the work is being done in a dedicated maintenance area constructed over an impermeable surface.
Key Point #4 – Spill Prevention/Cleanup
All fluid and oil leaks must be cleaned up immediately. The maintenance area must be equipped with appropriate absorbent spill clean-up materials (Photo 1).
Photo 1
Key Point #5 – Waste Disposal
All used absorbents must be disposed of properly. Waste fluids must be placed in appropriate leak-free containers with secondary containment. All used ma intenance materials should be disposed of properly off the construction site. Used fluids, tires, batte ries, etc. are not to be dumped or buried on the construction site.
72 Tuesday, August 05, 2025 Reg CC MTG, Page *551
Vehicle and Equipment Maintenance NS-10
Preventive Measures and Troubleshooting Guide
Field Condition: Common solutions are:
Used batteries are stored on the ground. Remove batteries from site or place them in a temporary containment facility.
Used oil, filters, and vehicle fluids are stored onsite. Place used materials in a temporary containment facility and schedule regular pickups to dispose of these materials.
Vehicles and equipment leak fluids onto the
ground.
Clean up spills on pavement with absorbent. Clean up
contaminated soil. Dispose of clean-up waste properly. Place drip pans or absorbent materials under parked vehicles and equipment. Repair equipment and vehicles immediately or remove from the project site.
Absorbent spill clean-up materials are not kept
onsite.
Instruct contractor to keep an ample supply of absorbent clean-up materials on site at all times during maintenance operations.
Run-on flows onto the maintenance area. Construct a berm, dike, or temporary diversion structure around maintenance facility.
73 Tuesday, August 05, 2025 Reg CC MTG, Page *552
Pile Driving Operations NS-11
NS-11 PILE DRIVING OPERATIONS
Proper control and use of equipment, materials, and waste products from pile driving operations will reduce the discharge of potential pollutants to the storm drain system or watercourse.
Applications
All construction sites near or adjacent to a wate rcourse or groundwater where permanent and temporary pile driving operations take place.
Key Points
Key Point #1 – Be Prepared
Use drip pans or absorbent pads at all times. However, the equipment should be as leak-free as possible.
Have spill kits and clean-up materials available at a ll pile driving locations. Implement other BMPs as applicable. Always comply with all applicable permits.
Key Point #2 – Equipment Use
Park equipment over plastic sheeting or equivalent. Plastic sheeting is not a substitute for drop pans or absorbent pads. Use less hazardous products, e.g. vegetable oil, when practicable.
Key Point #3 – Equipment Storage
Store pile driving equipment away from flowlines, dr ainage courses, and inlets. Protect hammers and other hydraulic attachments from run-on by placing them on plywood. Cover them with plastic when rain is forecast.
Key Point #4 – Inspection and Maintenance
Inspect entire pile driving areas and equipment (Photo 1) for leaks and spills on a daily basis. Inspect equipment routinely for damage and repair equipment as needed.
Photo 1
74 Tuesday, August 05, 2025 Reg CC MTG, Page *553
Pile Driving Operations NS-11
Preventive Measures and Troubleshooting Guide
Field Condition: Common solutions are:
Used oil, filters, and fluids are stored onsite. Place used materials in a temporary containment facility and schedule regular pickups to dispose of these materials.
Equipment leaks fluids onto the ground.
Clean up spills on pavement with absorbent. Clean up
contaminated soil. Dispose of clean-up waste properly.
Place drip pans or absorbent materials under parked
equipment. Repair equipment immediately or remove from
the project site.
Absorbent spill clean-up materials are not kept
onsite.
Instruct contractor to keep an ample supply of absorbent clean-up materials on site at all times during pile driving operations.
75 Tuesday, August 05, 2025 Reg CC MTG, Page *554
Concrete Curing NS-12
NS-12 CONCRETE CURING
Following proper procedures in the use of cure, chemical or water, during construction of concrete structures will minimize pollution through run-off.
Applications
All construction sites where concrete stru ctures are subject to curing requirements.
Key Points
Key Point #1 – Use of Chemical Cure
Protect drain inlets prior to application of cure. Use proper storage and handling techniques at all times and have spill kits available at the location of curi ng. .Avoid over-spraying cure, allowing it to become airborne.
Key Point #2 – Use of Water Cure
Ensure cure water does not flow to inlets or waterc ourses but rather to collection areas for infiltration or other means of removal approved by the RE a nd in accordance with all applicable permits.
Key Point #3 – Inspection and Maintenance
Ensure that cure is stored (Photo 1), handled, and used properly. Ensure that the Contractor keeps cure containers leak-free and spray nozzles clean.
Photo 1
Preventive Measures and Troubleshooting Guide
Field Condition: Common solutions are:
Cure containers are not in secondary containment. Place materials in a temporary containment facility and store in permanent secondary containment when no longer in use.
Chemical cure is becoming airborne. Ensure that the cure is applied close to the concrete surface to minimize cure becoming airborne.
Absorbent spill clean-up materials are not kept
onsite.
Instruct contractor to keep an ample supply of absorbent clean-up materials on site at all times.
Temporary diversion devices that collect cure water
needs maintenance.
Ensure the contractor is aware of the situation. If
maintenance is not done, inform the RE.
76 Tuesday, August 05, 2025 Reg CC MTG, Page *555
Material and Equipment Use on Water NS-13
NS-13 MATERIAL AND EQUIPMENT USE ON WATER
Following proper procedures in the use, storage, and disposal of materials and equipment on barges, boats, docks, temporary construction pads, or similar location will minimize or eliminate the discharge of potential pollutants to a watercourse.
Applications
All sites where materials and equipment are used on barges (Photo 1), boats, docks, and other platforms over or adjacent to a watercourse.
Key Points
Key Point #1 – Be Prepared
Use drip pans and absorbent materials under equipment and vehicles expected to be idle more than one hour. Ensure that an adequate supply of spill clean- up materials is available. Identify types of spill control measures to be employed, including the stor age of necessary clean-up materials and equipment.
Key Point #2 – Be Aware
Ensure NS-10 is implemented. If repairs cannot be made, remove the equipment from over the water.
Ensure compliance with all other pe rmits associated with the project.
Key Point #3 – Secure the Area
Provide watertight curbs or toe boards to contain sp ills and prevent materials, tools, and debris form leaving the barge, platform, dock, etc. Secure all materials to prevent discharge to the watercourse via wind.
Photo 1
Key Point #4 – Inspection and Maintenance
Ensure timely and proper removal of accumulated wast e. Inspect equipment for leaks and spills on a daily basis and ensure necessary repairs are done. Ensure proper procedures of storage and use of materials and equipment are being followed. Inspect and maintain all associated BMPs and perimeter controls to ensure continuous protection of the watercourse. 77 Tuesday, August 05, 2025 Reg CC MTG, Page *556
Material and Equipment Use on Water NS-13
Preventive Measures and Troubleshooting Guide
Field Condition: Common solutions are:
A discharge to the watercourse occurs.
Report the discharge to the RE immediately. Clean up the discharge as much as possible. Determine the cause and
secure the area.
A spill occurs without discharging into the
watercourse. Deploy spill clean up kits and supplies.
Vehicles and equipment parked over water bodies
leak fluids.
Place drip pans under all vehicl es and equipment that are placed on structures over water bodies that will be idle for more than one hour.
78 Tuesday, August 05, 2025 Reg CC MTG, Page *557
Concrete Finishing NS-14
NS-14 CONCRETE FINISHING
Following proper procedures in performing concrete finishing methods will minimize the impact of potential pollutants on runoff.
Applications
All sites where concrete finishing operations are performed.
Key Points
Key Point #1 – Containment
Ensure containment of all waste materials from high-pr essure water blasting, sandblasting, grinding, etc.
Without containment or water suppression of particl es, these operations can become problems (Photo 1).
Photo 1
Key Point #2 – Disposal
Refer to NS-2, Dewatering and the Dewatering Manual for options. Ensure disposal method is approved by the RE and is in compliance with applicable permits in advance of disposal.
Key Point #3 – Secure the Area
Protect all inlets that may be affected by any c oncrete finishing work. Direct any water, through nonerodible methods, to collection areas for infiltration or other disposal means.
Key Point #4 – Inspection and Maintenance
Inspect containment structures prior to use, during use, and prior to rainfall. If any repairs are required, ensure these are done in a timely manner and especially before a rain event. After use or at the end of the shift, ensure containment structures and general work area are clean and the wastes are disposed of properly.
79 Tuesday, August 05, 2025 Reg CC MTG, Page *558
Concrete Finishing NS-14
Preventive Measures and Troubleshooting Guide
Field Condition: Common solutions are:
Concrete finishing waste materials are not
contained or cleaned up.
Ensure the Contractor knows he must contain all finishing wastes and remove them from the project in a timely
manner.
Inlets are not protected. Ensure all inlets that may be affected are protected during concrete finishing.
Containment structure is inadequate. Ensure the Contractor is aware of the situation and makes any necessary repairs or maintenance immediately.
80 Tuesday, August 05, 2025 Reg CC MTG, Page *559
Structure Demo/Removal Over or Adjacent to Water NS-15
NS-15 STRUCTURE DEMOLITION/REMOVAL OVER OR ADJACENT TO WATER Following proper procedures during structure demoliti on or removal operations will protect watercourses from debris and wastes associated with these operations.
Applications
All construction projects with full or partial struct ure demolition or removal, e.g., bridge widenings, concrete channel removal, etc.
Key Points
Key Point #1 – Containment
Use attachments on construction equipment to catch debr is or use covers or platforms to collect debris and prevent it from falling into the watercourse. Debris catching devices must be emptied regularly and the debris stored away from the watercourse and protected until removal.
Photo 1
Key Point #2 – Disposal
Dispose of accumulated debris in a timely manner and at an approved disposal site. For hazardous waste disposal, refer to WM-6.
Key Point #3 – Inspection and Maintenance
Inspect equipment and any debris catching devices on a daily basis. Ensure any stockpiles are protected and disposed of properly. Any discharge must be reported to the RE immediately. 81 Tuesday, August 05, 2025 Reg CC MTG, Page *560
Structure Demo/Removal Over or Adjacent to Water NS-15
Preventive Measures and Troubleshooting Guide
Field Condition: Common solutions are:
A discharge to the watercourse occurs.
Report the discharge to the RE immediately. Clean up the discharge as much as possible. Determine the cause and
secure the area.
A spill occurs without discharging into the
watercourse. Deploy spill clean up kits and supplies.
Vehicles and equipment parked over water bodies
leak fluids.
Place drip pans under all vehicl es and equipment that are placed on structures over water bodies that will be idle for more than one hour.
Debris falls into the watercourse. Remove as much as possible with the available means, e.g. floating booms.
Inlets are not protected. Ensure all inlets that may be affected are protected during concrete finishing.
Containment structure is inadequate.
Ensure the Contractor is aware of the situation and makes any necessary repairs, maintenance, or modification
immediately.
82 Tuesday, August 05, 2025 Reg CC MTG, Page *561
Temporary Batch Plants NS-16
NS-16 TEMPORARY BATCH PLANTS
Proper control and use of equipment, materials, a nd waste products from temporary batch plant facilities will reduce the potential of pollutant discharges to storm drain systems and/or watercourses, reduce air emissions, and mitigate noise impacts.
Applications
Construction projects where temporary batch plant facilities are used. Batch plants may be on or off site.
Key Points
Key Point #1 – Planning
A Notice of Intent (NOI) must be submitted to th e SWRCB for construction and operation of a temporary batch plant. Consideration for minimizing nuisance noise and impacts to air and water quality should be observed during construction and operation. Appropriate BMPs must be implemented within the boundaries of the batch plant in accordance with the approved SWPPP.
Key Point #2 – Layout and Design
Batch plants should be located at least 300 ft away from any recreational area, school, residence, or other structure not associated with the construction proj ect. AC or PCC berms should be constructed around plant equipment to facilitate proper containment and cleanup. Runoff should be directed to a collection area or baker tank.
Key Point #3 – Operational Procedures
Designate a concrete washout area in accordance with WM-8. All operations should be conducted so as to have no visible emissions including fabric or cartridge type filters for dry material transfers, dust-tight service hatches on silos and auxiliary bulk storage trailers, wet suppression systems at all transfer points, and covered conveyors and transporting vehicles. All plant roads shall be stabilized, watered, treated, or paved so as to control dust and tracking. All en trances and exits shall likewise be stabilized.
Key Point #4 – Materials Storage and Disposal
Refer to WM-1, Material Delivery and Storage as well as WM-2, Material Use for proper handling procedures and secondary containment requirements. All stockpiles within the batch plant boundaries shall be in accordance with WM-3, Stockpile Manage ment. Refer to WM-4, 5, 8, and 10 for further discussion of handling and disposal of wastes.
Key Point #5 – Inspection and Maintenance
Inspect batch plant equipment, components, and BMPs daily during construction and operation.
Preventive Measures and Troubleshooting Guide
Field Condition: Common solutions are:
Cement transfer to silos produces excessive dust. Check fabric or filter at transfer point and repair if necessary. 83 Tuesday, August 05, 2025 Reg CC MTG, Page *562
Streambank Stabilization NS-17
NS-17 STREAMBANK STABILIZATION
Proper planning and procedures for work in and around streams and channels can reduce the potential for discharge of sediment and other pollutants and minimize the impacts of construction activities on watercourses and habitat.
Applications
Construction projects that disturb or occur within stream channels and associated riparian areas.
Key Points
Key Point #1 – Planning
Planning should consider scheduling, avoidance of in-stream construction, minimizing disturbance area and construction time, using pre-disturbed areas, sel ecting crossing location, and selecting equipment.
Key Point #2 – Associated BMP Selection for Streambanks Preservation of existing vegetation (SS-2) in a str eambank provides water quality protection, streambank stabilization, and riparian habitat. Hydraulic mu lch (SS-3), hydroseeding (SS-4), soil binders (SS-5), straw mulch (SS-6), or a combination may be used on disturbed streambanks to provide temporary soil stabilization. Be sure to review the limitations of each so that a selection of the most appropriate one for the given conditions may be made. Also consider possible use of other soil stabilization and sediment control BMPs provided the application is appr opriate and the limitations are not applicable.
Key Point #3 – In-stream Sediment Control
The primary goal while working in a stream is minimizing turbidity. There are three general ways to achieve this: construct a water diversion away from the work area, implement a water barrier around the work area, or employ practices that minimize sediment suspension.
Key Point #4 – Inspection and Maintenance
Inspect BMPs and equipment daily and ensure necessar y repairs for both are done in a timely manner. If a piece of equipment leaks, remove it from the stream immediately for repairs.
Preventive Measures and Troubleshooting Guide
Field Condition: Common solutions are:
Equipment in stream leaks fluids. Remove it immediately for repairs.
Erosion occurs along the streambank. Use appropriate BMP to stabilize streambank or repair/replace current materials as necessary.
84 Tuesday, August 05, 2025 Reg CC MTG, Page *563
Material Delivery and Storage WM-1
WASTE MANAGEMENT AND MATERIALS POLLUTION CONTROL
WM-1 MATERIAL DELIVERY AND STORAGE
Materials associated with construction activities must be delivered and stored using practices that prevent these materials from polluting receiving waters. Typical materials include PCC components, petroleum products, pesticides, herbicides, fertilizers, detergents, plasters, acids, lime, glues, adhesives, paints, and solvents.
Applications
All construction sites with applicable material storage Key Points
Key Point #1 – Storage Areas
Store materials indoors in existing structures when available. Temporary storage sheds must meet building and fire code requirements and should be located away from vehicle traffic. Storage instructions should be posted (Photo 1), and employees should be trained in proper storage and delivery procedures.
Key Point #2 – Hazardous Materials
Do not store hazardous materials directly on the ground. Store liquid chemicals in drums and bags on pallets under cover and in secondary containment. Store materials in original containers with their original product labels (Photo 2).
Photo 1 Photo2
Key Point #3 – MSDS
The contractor must provide the Resident Engineer with the Material Safety Data Sheets (MSDS) for all materials stored on the site.
Key Point #4 – Liquid Materials and Petroleum Products
Do not store incompatible materials in the sam e temporary storage facility. Allow sufficient space between stored containers to allow for spill cleanup and emergency response access. 85 Tuesday, August 05, 2025 Reg CC MTG, Page *564
Material Delivery and Storage WM-1
Key Point #5 – Containment
Temporary containment facilities for storage must be of sufficient volume to contain precipitation from a 24-hour, 25-year storm event, plus the greater of 10% of the aggregate volume of all containers or 100% of the capacity of the largest tank within its bounda ry, whichever is greater. (Photo 3). Accumulated rainwater or spills should be removed from containment areas promptly.
Photo 3
Key Point #6 – Bagged/Boxed Materials
Store materials delivered in bags and boxes on pallets. Cover bagged/boxed materials on non-working days and prior to rain events to protect materials from wind and precipitation.
Key Point #7 – Spill Cleanup
Contain and clean up spills immediately in accordance with BMPs detailed in Spill Prevention and Control (WM-4).
Preventive Measures and Troubleshooting Guide
Field Condition: Common solutions are:
Hazardous materials are not stored in
temporary containment devices.
Place hazardous materials in an appropriate temporary containment facility.
Hazardous substances are not labeled. Re-label items with an original label or remove substances from the site.
Hazardous chemicals, drums, or bagged
materials are stored directly on the ground.
Place material on a pallet and when possible, under cover and in temporary containment.
Temporary containment facilities have
standing water in them.
Pump out standing water into a containment device and dispose of properly. The water should be tested for possible pollutants and disposed of properly.
Materials are stored outside. Place materials on a raised platform and cover as needed to provide run-on and runoff control.
Incompatible materials such as chlorine and
ammonia are stored together.
Place incompatible materials in separate temporary storage facilities.
Temporary containment facilities are not
covered.
When practicable, cover containment facilities at all times. At a minimum, cover containment facilities on non-work ing days and prior to rain events.
There are no spill clean-up materials onsite.
Instruct contractor to purchase an ample supply of clean-up materials for materials being stored onsite and keep them close to the temporary storage areas.
86 Tuesday, August 05, 2025 Reg CC MTG, Page *565
Material Use WM-2
WM-2 MATERIAL USE
Materials associated with construction activities must be used in accordance with practices that prevent them from polluting receiving waters. Typical materials include AC, PCC, PCC compounds, petroleum products, pesticides, herbicides, fertilizers, detergents, plasters, acids, lime, glues, adhesives, paints, solvents, and curing compounds.
Applications
All construction sites with applicable material uses
Key Points
Key Point #1 – MSDS
The contractor must provide the Resident Engineer with the Material Safety Data Sheets (MSDS) for all materials used on the site.
Key Point #2 – Paint Materials
Mix paint indoors or in a containment area. Allow time for drying before rain events. Never clean brushes or rinse equipment so waste water enters street, gutte r, storm drain, or receiving water. Items used with water-based paint can be cleaned, discharging rinse wa ter to a sanitary sewer. When dry, empty latex paint cans, brushes, etc. can be disposed of with other construction debris. Filter used paint thinner/solvents and reuse. Paint thinners and solvents that cannot be recycled must be disposed of as hazardous waste.
Key Point #3 – Landscaping-Related Products
The contractor must complete a Report of Ch emical Spray Form when spraying herbicides and pesticides. Products must be applied by a licensed applicator. Do not over-apply fertilizers or pesticides and follow product usage recommendations. Apply in small amounts, allowing time for product to work in or dry before rain events.
Key Point #4 – Spill Cleanup
Maintain spill clean-up materials near areas that products will be used.
Preventive Measures and Troubleshooting Guide
Field Condition: Common solutions are:
Improper disposal of waste water from washing
paint brushes occurs.
When practicable, wash paint brushes in a drain that is connected to a sanitary sewer system or into a concrete washout pit or temporary sediment trap.
Paint mixing occurs onsite. Mix paints indoors or in a containment area.
Disposal of latex paint occurs onsite.
Collect all excess paint. Paint cans, brushes, rags, absorbent materials, and rags, when thoroughly dry, may be disposed of with other construction debris.
Paint thinner or solvent is spilled during use.
Clean up spills on pavement with absorbent. Spills on soil should be cleaned up by removing contaminated soil and
disposing of properly.
87 Tuesday, August 05, 2025 Reg CC MTG, Page *566
Stockpile Management WM-3
WM-3 STOCKPILE MANAGEMENT
Construction stockpiles of materials such as soil, P CC, AC, PCC/AC rubble, aggregate base, aggregate sub-base, and asphalt based cold-mix have the potentia l to pollute receiving waters if not protected from contact with storm water.
Applications
All construction sites with applicable stockpiles
Key Points
Key Point #1 – General Guidelines
Stockpile protection is a year-round requirement. Insta ll temporary barriers around stockpile perimeters to prevent contact with storm water when required. Te mporary barriers can be berms, dikes, silt fences (Photo 1), straw bales, or sandbag barriers. All active stockpiles are to be protected by linear sediment barriers prior to rain events.
Key Point #2 – Soil Stockpiles
During the rainy season, cover inactive soil stockpiles (P hoto 2) or protect them with soil stabilization at all times (Photo 3). During the non-rainy season, cover in active soil stockpiles or protect them with linear barriers prior to rain events.
Photo 1 Photo 2
Key Point #3 – Paving Material Stockpiles
During the rainy season, cover inactive stockpiles of PCC, AC, AC/PCC rubble, and aggregate base and sub-base, and protect with a temporary perimeter ba rrier at all times. During the non-rainy season, cover inactive stockpiles or protect with a linear barrier prior to rain events.
Key Point #4 – Asphalt Based Cold-Mix Stockpiles
Place active and inactive cold-mix stockpiles on plastic and cover with plastic prior to rain events (Photo 4). The key is to prevent contact between rainfall and run-on with the stockpiles. 88 Tuesday, August 05, 2025 Reg CC MTG, Page *567
Stockpile Management WM-3
Photo 3 Photo 4
Preventive Measures and Troubleshooting Guide
Field Condition: Common solutions are:
Soil stockpile erodes.
Cover stockpile with plastic sheeting or spray with a soil stabilizer. Protect with a temporary perimeter sediment barrier around the stockpile.
Stockpile is in flow line. Remove stockpile from drainage path or protect with a berm, dike, or temporary diversion device.
Storm water run-on impacts the stockpile.
Protect the stockpile by using temporary perimeter
sediment barriers such as berms, dikes, silt fencing, or sandbags.
Wind causes erosion and or blowing dust. Cover stockpile or spray with a soil stabilizer. Use a water application to suppress dust.
Cold-mix stockpile is on the bare ground. Remove stockpile and place on plastic or comparable material.
Cold-mix is stored in curb drainage way. Remove stockpile from flow line. 89 Tuesday, August 05, 2025 Reg CC MTG, Page *568
Spill Prevention and Control WM-4
WM-4 SPILL PREVENTION AND CONTROL
Spill prevention and prompt appropriate spill respon se reduces the potential for polluting receiving waters with spilled contaminants. Spills of concern in clude chemicals and hazardous wastes such as soil stabilizers/binders, dust palliatives, herbicides, growth inhibitors, fertilizers, de-icing products, fuels, lubricants, paints, and solvents.
Applications
All construction sites where chemicals or hazardous materials are stored or used Key Points
Key Point #1 – Spill Types
Be prepared for spills. Locate and clearly label sp ill kits and used absorbent containers (Photo 1).
Respond to all spills immediately upon discovery. The appropriate spill response is determined by the quantity and/or composition of spilled substance, as follows:
• A minor spill involves a small quantity of oil, gas, paint, etc. that can be controlled by the first responder upon discovery of the spill.
• A semi-significant spill can be controlled by the fi rst responder with the aid of other personnel and may require cessation of all other activity.
• A significant/hazardous spill is a spill that cannot be controlled by personnel in the immediate vicinity.
Photo 1
Key Point #2 – Minor Spill Response
• Contain the spill.
• Recover the spilled material.
• Clean the spill area. Use absorbent ma terials. Do not hose down the area. • Dispose of clean-up materials appropriately.
90 Tuesday, August 05, 2025 Reg CC MTG, Page *569
Spill Prevention and Control WM-4
Key Point #3 – Semi-Significant Spill Response
• On impermeable surfaces, surround the spill with abso rbent material to contain it. Clean spill using absorbent material.
• On dirt areas, construct an earthen dike to contain the spill. Dig up contaminated soil and dispose of properly.
• If spill occurs during rain, cover spill area to prevent contaminating storm runoff.
Key Point #4 – Significant/Hazardous Spill Response
• Contractor notifies the RE immediately.
• Contractor calls 911 and appropriate county officials. • Contractor notifies the Governors Office of Emergency Services Warning Center (805) 852-7550. • For spills meeting federal quantities, the contract or notifies the National Response Center (800) 424- 8802.
• All verbal notification must be followed up by written reports. • Contractor obtains services of spill contractor or a HazMat team immediately. Contractor staff is not to attempt cleanup until qualified assistance has arrived onsite.
Key Point #5 – Education
Train employees regarding the appropriate response for spills for the materials they use. Incorporate spill response procedures into regular safety meetings.
Preventive Measures and Troubleshooting Guide
Field Condition: Common solutions are:
Material spills occur on a permeable surface. Contain spread of spill with an earthen dike. Dig up and properly dispose of contaminated soil.
Material spills occur on an impermeable surface. Use dry absorbent materials to encircle and contain the spill.
Place clean-up materials in a drum and dispose of properly.
The spill exceeds the cap acity of spill cleanup
materials on site.
Contain spill. Obtain enough spill clean-up materials to completely clean up the spill. Contact Caltrans Maintenance.
Store additional spill clean-up materials as necessary.
Spilled material encroaches onto travel way.
Contact Caltrans Maintenance. Use additional spill clean-up materials as necessary and replenish these materials in adequate quantity for future use.
91 Tuesday, August 05, 2025 Reg CC MTG, Page *570
Solid Waste Management WM-5
WM-5 SOLID WASTE MANAGEMENT
Solid construction wastes must be collected, stored, a nd disposed of using practices that minimize contact with storm water. Solid wastes include such items as used brick, mortar, timber, steel, vegetation/landscaping waste, empty material containers, and litter.
Applications
All construction sites
Key Points
Key Point #1 – Waste Storage Areas
Solid waste storage areas should be located in an area with little potential for flooding and at least 15 m (50 ft) from drainage facilities and receiving waters. Use berms, dikes, or temporary diversion structures to protect stockpiled waste materials from contacting storm water. During foul weather, waste should be stored in watertight dumpsters or securely c overed. Salvage or recycle waste as appropriate.
Key Point #2 – Litter Control
Provide adequate trash receptacles in the yard, field trailer areas, and where workers gather for breaks and meals (Photo 1). Do not place litter receptacles near drainage inlets or receiving waters. All litter within the construction site is to be collected weekly, regardless of the litters origin. Litter is to be removed from the site by trash hauling contractors.
Photo 1
Key Point #3 – Dumpsters
Provide an adequate number of watertight dumpsters to collect the anticipated volume of construction waste. Plan for additional dumpsters and dumpster pickups during demolition phases. Do not place dumpsters near drainage inlets or receiving waters. Full dumpsters are to be removed from the site and disposed of outside the highway right-of-way. Washi ng out dumpsters on the project site is prohibited.
Key Point #4 – Litter and Debris
Do not let litter interfere with the functioning of the storm drain system. Ensure that litter and debris are removed regularly from drainage grates and ditch lines (Photo 2). 92 Tuesday, August 05, 2025 Reg CC MTG, Page *571
Solid Waste Management WM-5
Photo 2
Key Point #5 – Hazardous Wastes
Separate potentially hazardous waste from non-hazardous w aste. Do not dispose of toxic liquid wastes in dumpsters designated for construction wastes. Dis pose of hazardous wastes in accordance with WM-6.
Preventive Measures and Troubleshooting Guide
Field Condition: Common solutions are:
Runoff runs through waste stockpiles.
Locate stockpiles away from dr ainage courses or place a berm, dike, or temporary diversion structure around
stockpiles.
Lunch trash is left on the ground.
Place trash receptacles in yards, field trailers, or where workers gather for lunch and breaks. Instruct personnel on waste disposal procedures.
Trash containers leak. Install watertight liner, remove, or replace leaky containers.
The public dumps trash on site.
Block access to areas where dumping occurs. Keep trash
cleaned up to discourage dumping. Place sign that illegal dumping is prohibited.
Hazardous waste is intermixed with solid waste.
Segregate hazardous waste from solid waste. Instruct
employees and workers to identify and properly dispose of hazardous waste.
93 Tuesday, August 05, 2025 Reg CC MTG, Page *572
Hazardous Waste Management WM-6
WM-6 HAZARDOUS WASTE MANAGEMENT
Hazardous wastes should be collected, stored, and dispo sed of using practices that prevent contact with storm water. The following types of wastes are considered hazardous: petroleum products, concrete curing compounds, palliatives, septic wastes, pain ts, stains, wood preservatives, asphalt products, pesticides, acids, solvents, and roofing tar. Ther e may be additional wastes on the project that are considered hazardous. It is also possible that non- hazardous waste could come into contact with these hazardous wastes, such that they become contaminated and are therefore considered hazardous waste.
Applications
All construction projects
Key Points
Key Point #1 – Hazardous Material Use
Use containment berms in fueling areas. Provide sec ondary containment in paint mixing areas (Photo 1) and paint clean-up areas. Place hazardous waste co llection containers at convenient locations.
Photo 1
Key Point #2 – Hazardous Waste Storage Areas
Ensure that adequate waste storage volume is provided and is located away from storm drains and receiving waters. Provide temporary containment su fficient to contain precipitation from a 24-hour, 25- year storm event, plus 10% of the aggregate volume of all containers or 100% of the capacity of the largest tank within its boundary, whichever is greater . Temporary containment should be impervious to spilled wastes for a minimum of 72 hours (Photo 2). Equip storage areas with appropriate spill clean-up materials. Allow sufficient space between storage c ontainers to allow for spill cleanup and emergency response access.
Key Point #3 – Hazardous Waste Containers
Store hazardous wastes in appropriate sealed containers that are clearly labeled with contents and starting date of accumulation. Do not mix different types of waste together in one container. Do not store incompatible wastes in the same temporary containment facility. If dry waste containers are not watertight, store containers on pallets. Prior to pred icted rain events, cover the containment area (Photo 3).
94 Tuesday, August 05, 2025 Reg CC MTG, Page *573
Hazardous Waste Management WM-6
Photo 2 Photo 3
Key Point #4 – Disposal
Hazardous waste is to be transported from the site by a licensed hazardous waste transporter and disposed of at an authorized, licensed disposal or recycling facility within 90 days of being accumulated. Properly dispose of rain water removed from temporary contai nment that may have mixed with hazardous waste.
Key Point #5 – Education
Contractor and subcontractor employees should be e ducated regarding identification, storage, and disposal of hazardous wastes. Ongoing hazardous wast e training should be incorporated into regular safety meetings.
Key Point #6 – Inspection and Maintenance
Ensure that hazardous waste storage areas are inspected in conformance with contract provisions. Repair or replace perimeter controls, containment structures, covers, and liners as needed.
Preventive Measures and Troubleshooting Guide
Field Condition: Common solutions are:
Rain water mixes with
hazardous materials. Collect rain water and then properly dispose of as hazardous waste.
Hazardous waste
containers are stored in the
open.
Place hazardous waste containers in temporar y containment and cover prior to rain events.
Hazardous waste
containers are not labeled.
Clearly label all hazardous waste containers with the waste being stored and the beginning date of accumulation.
Temporary containment
area is inadequate to
contain waste or hazardous
materials.
Temporary containment facilities should be constructed to contain precipitation from a 24-hour, 25-year storm event, plus 10% of the aggregate volume of all containers or 100% of the capacity of the largest tank within its boundary, whichever is greater.
Temporary containment
facilities are not covered.
When practicable, cover containment facilities at all times. At a minimum, cover containment facilities on non-working days and prior to rain events.
Dry wastes are stored on
the ground. Unless in watertight containers, store dry wastes on pallets 95 Tuesday, August 05, 2025 Reg CC MTG, Page *574
Contaminated Soil Management WM-7
WM-7 CONTAMINATED SOIL MANAGEMENT
Contaminated soil on construction sites should be managed to prevent any pollutants from entering storm drain systems or receiving waters. Typical soil contamination is due to spills, illicit discharges, underground storage tank leaks, or aerially deposited l ead (ADL). Contaminated soils tend to occur on projects in urban or industrial areas. Soil contaminants and locations are often identified in the project plans and specifications.
Applications
Areas of contamination as identified on project plans and specifications Suspected areas of contamination due to site hist ory, spills, leaks, soil discoloration/odor, abandoned tanks, pipes, or buried debris
Highway widening project where adjoining soils may contain ADL Key Points
Key Point #1 – Aerially Deposited Lead (ADL)
Soil from areas with ADL may be used as indicated in the contract special provisions providing that operations result in no visible dust. When excavati ng soils containing ADL, monitor air quality. Soils containing ADL may also be transported to a licensed landfill or other disposal site. At all times, prevent storm water, groundwater, etc. from mixing with and transporting contamination.
Key Point #2 – Identification and Coordination
If needed, staff from a Caltrans-approved certified lab shall test suspected soil. Upon confirmation of contamination, contractor shall work with appropria te local, state, and federal agencies to implement appropriate excavation, transportation, and disposal practices.
Key Point #3 – Stockpiling
Avoid stockpiling contaminated soils. If stockpiling is necessary, cover stockpile with plastic sheeting or tarps, install a berm around stockpile to prevent run- on, and locate the stockpile away from storm drains and receiving waters. Photo 1 shows contaminat ed soil stockpiled too close to an inlet.
Photo 1
96 Tuesday, August 05, 2025 Reg CC MTG, Page *575
Contaminated Soil Management WM-7
Key Point #4 – Underground Storage Tank Removal
Obtain required approvals and permits from applicable local, state, and federal agencies prior to removal.
If tank contains liquid or sludge, ensure that it is t ested for hazardous substances prior to removal. Test underlying soils to determine if there is contamin ation. Prevent storm water, groundwater, etc. from mixing with and transporting contaminated substan ces from the storage tank. Ensure that tank and any liquid, sludge, or contaminated soils are transported and disposed of properly.
Preventive Measures and Troubleshooting Guide
Field Condition: Common solutions are:
Contaminated soil must be stockpiled onsite.
Cover the stockpile with plastic sheeting or a tarp.
Construct a berm around the stockpile to prevent runoff from leaving the area. Do not place stockpiles near storm drains or watercourses.
Water becomes mixed with contaminated soils. Collect the water and treat or transport to an appropriate disposal site.
97 Tuesday, August 05, 2025 Reg CC MTG, Page *576
Concrete Waste Management WM-8
WM-8 CONCRETE WASTE MANAGEMENT
Concrete waste materials must be properly managed to minimize or eliminate contact with storm water.
Applications
On construction sites where new concrete is pl aced or demolition of concrete structures occurs Where concrete slurries are generated such as sawing, coring, grinding, and grooving At mortar mixing stations
Key Points
Key Point #1 – Concrete Slurry Waste
Place temporary berms or sandbags around coring and saw -cutting locations to contain slurry. Vacuum slurry waste or collect it in a temporary lined pit and allow it to dry. Dispose of concrete waste in compliance with Solid Waste Management (WM-5).
Key Point #2 – Temporary Concrete Washout
Wash out concrete trucks in designated areas only (Photo 1). Locate washout facilities a minimum of 15 m (50 ft) from storm drains or receiving waters. Keep the washout areas away from areas of construction traffic. A sign shall be installed at each location in accordance with Standard Specification Section 56-2, Roadside Signs. The facility shall have a pit or berm to provide sufficient volume to contain all concrete waste resulting from washout. Allow concrete waste to dry and then dispose of on a regular basis in conformance with Standard Specifica tions, Section 15-3.02, Removal Methods.
Photo 1
Key Point #3 – Above Grade Washout Facilities
Above grade facilities (Photo 2) shall be construc ted as shown in the details. A minimum length and width of 3 m (10 ft) is recommended, but the area should have sufficient volume to contain the anticipated waste. The lining material shall be a minimum of 10-mil polyethylene sheeting, free of holes or other defects.
98 Tuesday, August 05, 2025 Reg CC MTG, Page *577
Concrete Waste Management WM-8
Photo 2
Key Point #4 – Below Grade Washout Facilities
Below grade facilities shall be constructed as shown in the details. A minimum length and width of 3 m (10 ft) is recommended, but the area should have suffi cient volume to contain the anticipated waste from operation. The lining material shall be a minimum of 10-mil polyethylene sheeting, free of holes or other defects. Commercial type lath and flagging shall be used.
Key Point #5 – Inspection and Maintenance
Washouts should be maintained to provide a minimum 100 mm (4 in) freeboard for above ground facilities and 300 mm (1 ft) freeboard for below gr ade facilities. Maintenance includes removal and disposal of hardened concrete as previously describ ed. Existing facilities must be cleaned or additional facilities constructed when the w ashout is 75% full (Photo 3).
Photo 3
Key Point #6 – Washout Removal
Materials used to construct the facility become the property of the contractor and shall be removed and disposed of outside the highway right-of-way in c onformance with Standard Specifications, Section 7-
1.13. Holes and depressions shall be backfilled and repa ired in conformance with Standard Specifications, Section 15-1.02, Preservation of Property.
99 Tuesday, August 05, 2025 Reg CC MTG, Page *578
Concrete Waste Management WM-8
Preventive Measures and Troubleshooting Guide
Field Condition: Common solutions are:
Concrete washout overflows. Discontinue using washout and construct new facility to contain anticipated washout operations.
Concrete washout discharges into storm drain.
Notify the Construction Storm Water Coordinator of
potential non-compliance. Clean up as much of the waste as possible. Place washout at least 15 m (50 ft) from drainage facilities or receiving waters. Ensure the washout is
designed to contain the volume of anticipated wastes.
Protect storm drain while conducting washout with inlet cover, sandbags or other BMP.
Drivers wash out trucks at locations of their
choosing.
Place sign at washouts and instruct drivers of the washout locations.
100
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Sanitary/Septic Waste Management WM-9
WM-9 SANITARY/SEPTIC WASTE MANAGEMENT
This BMP includes procedures to prevent the introduc tion of wastes from construction site toilet facilities to storm drains or receiving waters.
Applications
All construction sites that use temporary or portable sanitary/septic waste systems Key Points
Key Point #1 – Installation
Temporary sanitary facilities should not be located near drainage facilities (Photo 1) or receiving waters, nor should they be located in areas that will collect water (Photo 2). If the site is deemed to be a high wind area by the RE, the facilities shall be secured to prevent overturning.
Photo 1 Photo 2
Key Point #2 – Sanitary Sewer Discharge
Discharges direct to the sanitary sewer should be in compliance with local health agency and sewer district requirements. Ensure that the temporary f acility is properly connected to the sanitary sewer to prevent illicit discharges.
Key Point #3 – On-Site Disposal
Waste water shall not be discharged or buried within the highway right-of-way (Photo 3). Ensure that any on-site disposal systems comply with local health agency requirements. 101
Tuesday, August 05, 2025 Reg CC MTG, Page *580
Sanitary/Septic Waste Management WM-9
Photo 3
Key Point #4 – Inspection and Maintenance
The contractors Water Pollution Control Manager (W PCM) shall monitor sanitary/septic waste storage and disposal procedures weekly. Ensure that the san itary/septic facilities are maintained in good working order and wastes are transported offsite by a licensed service.
Preventive Measures and Troubleshooting Guide
Field Condition: Common solutions are:
Sanitary facilities tip over.
Place sanitary facility on level surface and out of drainage paths or traffic areas. Use Spill Prevention and Control (WM-4).
Sanitary facility leaks. Repair or replace sanitary facility.
Sanitary facility is cleaned onsite near storm drain.
Place sanitary facility away from drainage inlets or
receiving waters. Contain water in a temporary trapping device.
102
Tuesday, August 05, 2025 Reg CC MTG, Page *581
Liquid Waste Management WM-10
WM-10 LIQUID WASTE MANAGEMENT
This BMP includes procedures to prevent pollutant s related to non-hazardous liquid wastes from entering storm drains or receiving waters. Liquid wastes include drilling slurries, drilling fluids, wastewater that is free from grease and oil, dredgings, and other non-storm water liquid discharges not covered by separate permits. This BMP does not apply to the following:
• Dewatering operations (See NS-2)
• Solid wastes (See WM-5)
• Hazardous wastes (See WM-6)
• Concrete slurries (See WM-8)
• Liquid wastes covered by specific laws or permits
• Non-storm water discharges permitted by any Caltrans NPDES permit unless Caltrans determines that the discharge contains pollutants
Applications
All construction sites where liquid wastes are generated Key Points
Key Point #1 – Capture
Capture all liquid wastes that have the potential to impact water entering the storm drain system. Use temporary dikes or berms to direct surface flow of liquid wastes to a containment structure or device. If liquid waste contains sediment, capture and treat the fl ow to remove sediment or capture in a containment structure to allow sediment to settle.
Key Point #2 – Containment
Contain liquid wastes in a controlled area that is structurally sound, leak-free, and provides sufficient storage for the anticipated volume. Appropriate stru ctures include holding pits, sediment basins, roll-off bins, and portable tanks. Locate the containment structure such that accidental releases do not discharge to storm drains or receiving waters or threaten health or safety.
Key Point #3 – Disposal
Some liquid wastes may require testing and certification that they are non-hazardous before an appropriate disposal method is selected. Liquid waste may need to be treated to remove sediment or other pollutants prior to disposal. Typical liquid waste dis posal requires Dewatering (NS-2) with disposal of resulting solids per Solid Waste Management (WM- 5) or Standard Specification Section 7-1.13, Disposal of Material Outside the Highway Right-of-Way.
Key Point #4 – Inspection and Maintenance
Frequently inspect liquid waste containment areas and capturing devices for damage. Repair as needed.
Preventive Measures and Troubleshooting Guide
Field Condition: Common solutions are:
Liquid waste is sediment- laden. Construct a temporary Sediment Trap (SC-3) and allow sediment to settle. Properly dispose of liquid waste.
Liquid waste discharge is uncontrolled. Capture flows by using temporary dikes or berms to intercept flows and direct them to a containment device.
103
Tuesday, August 05, 2025 Reg CC MTG, Page *582
Notes
PART IV: NOTES
DISTRICT CONSTRUCTION STORM WATER COORDINATORS
1 Kirk Carrington (530) 582-9129
2 Ted Schultz (530) 225-4640
3 Kirk Carrington (530) 582-9129
4 Frank Gorham (510) 286-5185
5 Pete Riegelhuth (805) 549-3661
6 Raafat Shehata (559) 488-4284
Sheri West (661) 395-2795
7 James Burt (213) 897-1960
8 Walt Griffith (909) 232-6496
9 Richard Epler (209) 786-2932
10 Richard Epler (209) 786-2932
11 Michael Kolbenschlag (858) 467-4080
12 Mark Doroudian (949) 724-2834
CALTRANS HEADQUARTERS ENVIRONMENTAL WEBSITE
www.dot.ca.gov/hq/env/stormwater/index.htm
COMMENTS AND QUESTIONS
Please fax comments, questions, or concerns regard ing this manual or other BMP news to 714-567-2780. 104
Tuesday, August 05, 2025 Reg CC MTG, Page *583
APPENDIX VIII
CALIFORNIA REGIONAL WATER QUALITY
CONTROL BOARD GUIDELINES
Tuesday, August 05, 2025 Reg CC MTG, Page *584
UST lab requirements for oxygenates (9/06) 1
STATE OF CALIFORNIA
California Regional Water Quality Control Board
Los Angeles Region
(Underground Storage Tank Program)
General Laboratory Testing Requirements for Petroleum Hydrocarbon Impacted Sites
The purpose of this document is to supplement the Regional Board’s Laboratory Report Form (6/00) in order to update obsolete testing requirements and set forth the new requirements for fuel oxygenates and natural attenuation testing. Each analytical method used must be certified by the California Environmental Accreditation Laboratory Program (ELAP).
1. General Laboratory QA/QC Requirements
Conform to the Regional Board’s Laboratory Report Form (6/00) in general, except for items specified below.
2. Compounds to be Tested
Total petroleum hydrocarbons in gasoline range (TPHg) (C4 – C12); Total petroleum hydrocarbons in diesel range (TPHd) (C13 – C22); benzene, toluene, ethylbenzene, xylenes (BTEX); methyl tertiary butyl ether (MTBE); di-isopropyl ether (DIPE); ethyl tertiary butyl ether (ETBE); tertiary amyl methyl ether (TAME); tertiary butyl alcohol (TBA).
If the gasoline tanks historically or currently contain methanol or ethanol, these compounds are also to be tested.
3. Analytical Test Methods and Detection Limits
Conform to Table 1 below. Report any concentration detected between the method detection limit (MDL) and estimated quantitation limit (EQL) (or reporting limit (RL)) in a numerical value with a “J” flag indicator. All “Non-Detect” (ND) shall be reported in the format with “< (numerical MDL).” Integrate all fuel oxygenate additive concentrations into total petroleum hydrocarbons (TPH) and report it as TPH. EPA Method 8021B may be used to substitute EPA Method 8260B at the sites where all fuel oxygenates have not been identified by EPA Method 8260B in soil and/or groundwater.
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General Laboratory Testing Requirements for Petroleum Hydrocarbon Impacted Sites
UST lab requirements for oxygenates (9/06) 2
Table 1: Analytical Requirements
Analyte Analytical Method
Required MDL
(Method
Detection Limit)
Soil (mg/kg)
Required MDL
(Method Detection
Limit)
Water (mg/L)
BTEX EPA Method 8260B(8021B) 1 0.5
MTBE EPA Method 8260B 2 1
DIPE EPA Method 8260B 2 1
ETBE EPA Method 8260B 2 1
TAME EPA Method 8260B 2 1
TBA EPA Method 8260B 20 10
TPHg Cal-LUFT GC/FID or GC/MS 100-200 50-100
TPHd Cal-LUFT GC/FID 1000 500
Methanol Cal-LUFT GC/FID 1000 500
Ethanol Cal-LUFT GC/FID(EPA8260B) 500 250
4. Use of EPA Method 5035 for Soil Samples
Apply EPA Method 5035A specified in the USEPA SW-846, (7/2002) for soil sample preparation and preservation in order to minimize volatile organic losses. Use the sample collection devices, or equivalent, specified in the method (e.g., the Encoreä sampler). If the Encoreä sampler is used, analyze sample within 48 hours from the collection.
Analyze sample within 14 days for soil samples stored under frozen conditions.
5. Natural Attenuation Parameters
Natural attenuation processes include dispersion, dilution, sorption, volatilization, biodegradation, and chemical or biological transformation. A carefully controlled monitoring program for the natural attenuation can be used to confirm site-specific mass reduction and achieve remedial objectives. In order to test parameters to confirm the occurrence of natural attenuation, site characterization must be complete first.
5.1 Primary Natural Attenuation Criteria
Meet the following conditions prior to testing for the secondary natural attenuation parameters:
a) Groundwater contaminant plume must be fully defined. b) Groundwater monitoring program on a quarterly basis must be completed for at least two years including data of MTBE and other oxygenates.
c) Groundwater concentration has consistently decreased or been stable.
Tuesday, August 05, 2025 Reg CC MTG, Page *586
General Laboratory Testing Requirements for Petroleum Hydrocarbon Impacted Sites
UST lab requirements for oxygenates (9/06) 3
d) Determination of site-specific hydraulic conductivity must be conducted: Refer the ASTM D4044-91 for the slug test procedures. Other field methods (e.g., pumping test) are also acceptable to determine hydraulic conductivity. e) Characterization of MTBE and other oxygenates plume vertical extent must be completed with discrete multi-depth groundwater sampling at all groundwater vulnerable areas designated by the Board.
5.2 Secondary Natural Attenuation Parameters
Analyze the secondary natural attenuation parameters only after the primary natural attenuation criteria are met. Analyze the secondary natural attenuation parameters at all groundwater monitoring wells inside and outside of the plume. Conform to Table 2 below for parameters and testing methods.
Table 2:Analytical Requirements for Secondary Natural Attenuation Parameters Parameter Test Method Required MDL
pH EPA Method 150.2 or Field instrument n/a
Dissolved oxygen (DO) EPA Method 360.1 or Field instrument n/a Redox potential (ORP) Field instrument n/a
Sulfate (SO4) EPA Method 300 5 mg/L
Nitrate (NO3) EPA Method 300 0.1 mg/L
Ferrous iron (Fe2+) EPA Method 200 0.1 mg/L
Methane (CH4) EPA Method 8015(M) 5 mg/L
6. Electronic Submittal of Data Reporting
All analytical results shall be uploaded in an electronic format to the State GeoTracker Database.
Tuesday, August 05, 2025 Reg CC MTG, Page *587
APPENDIX IX
CHEVRON ENROACHMENT
REQUIREMENTS
Tuesday, August 05, 2025 Reg CC MTG, Page *588
California State Fire Marshal
Information Bulletin 03-001
Issued: June 20, 2003
(Revised September 25, 2019)
ENCROACHMENTS INTO or ON PIPELINE EASEMENTS
The purpose of this informational bulletin is to delineate the position of the State Fire Marshal regarding encroachments onto the pipeline easements.
Section 51014.6 of the California Government Code states, “(a) Effective January 1, 1987, no person, other than the pipeline operator, shall do any of the following with respect to any pipeline easement:
(1) Build, erect, or create a structure or improvement within the pipeline easement or permit the building, erection, or creation thereof. (2) Build, erect, or create a structure, fence, wall, or obstruction adjacent to any pipeline easement which would prevent complete and unimpaired surface access to the easement, or permit the building, erection, or creation thereof. (b) No shrubbery or shielding shall be installed on the pipeline easement which would impair aerial observation of the pipeline easement.
This subdivision does not prevent the revegetation of any landscape disturbed within a pipeline easement as a result of construction the pipeline and does not prevent the holder of the underlying fee interest or the holder’s tenant from planting and harvesting seasonal agricultural crops on a pipeline easement. (c) This section does not prohibit a pipeline operator from performing any necessary activities within a pipeline easement, including, but not limited to, the construction, replacement, relocation, repair, or operation of the pipeline.
It is the position of the State Fire Marshal that nothing shall encroach into or upon the pipeline easement, which would impede the pipeline operator from complete and unobstructed surface access along the pipeline right of way. Nor shall there be any obstructions, which would shield the pipeline right of way from observation. In the interest of public safety and the protection of the environment, it is imperative that the pipeline operator visually assesses the conditions along the easement to ensure the integrity of the pipeline.
It is the responsibility of the pipeline operator to ensure they have unimpeded surface access and to be able to physically observe all portions of their pipeline rights of way. In cases where this is not possible, the pipeline operator shall inform the State Fire Marshal. The State Fire Marshal shall in conjunction with the pipeline operator resolve the issue.
Questions regarding the issue of pipeline encroachment can be addressed to:
CAL FIRE-Office of the State Fire Marshal
Pipeline Safety Division
3780 Kilroy Airport Way #500
Long Beach, CA 90806 Phone:(562) 497-0350
Tuesday, August 05, 2025 Reg CC MTG, Page *589
APPENDIX X
PHASING PLAN NEAR SHERIFF STATION
Tuesday, August 05, 2025 Reg CC MTG, Page *590
PHASED WORK AROUND LA COUNTY SHERIFF STATION
The following is an illustration to showcase the phasing plan for the water main replacement work as well as the paving work in the area near the Los Angeles County Sheriff Department (LASD) - Lomita Station. • The current circulation at the Sheriff Station is represented below:
Current Situation
Tuesday, August 05, 2025 Reg CC MTG, Page *591
PHASED WORK AROUND LA COUNTY SHERIFF STATION
• The proposed phased work around the Sheriff Station shall be as follows:
BLOCKED *
FROM 9 AM TO 3 PM
Construction
Phase 1
Tuesday, August 05, 2025 Reg CC MTG, Page *592
PHASED WORK AROUND LA COUNTY SHERIFF STATION
Construction
Phase 2
NOTES:
- During the time when the entrance/exit is blocked from 9 AM to 3PM, the Contractor shall halt work at any time to allow access for LASD vehicles at short notice. - The above phasing plan is tailored to the water main replacement portion of the project as well as the paving portion of the project.
BLOCKED *
FROM 9 AM TO 3 PM
Tuesday, August 05, 2025 Reg CC MTG, Page *593
APPENDIX XI
CARB FLEET CERTIFICATION
Tuesday, August 05, 2025 Reg CC MTG, Page *594
65265.00001\42648333.1
FLEET COMPLIANCE CERTIFICATION
Contractor hereby acknowledges that they have reviewed the California Air Resources Board’s policies, rules and regulations and are familiar with the requirements of Title 13, California Code of Regulations, Division 3, Chapter 9, effective on January 1, 2024 (the “Regulation”).
Contractor hereby certifies, subject to penalty for perjury, that the option checked below relating to the Contractor’s fleet, and/or that of their subcontractor(s) (“Fleet”) is true and correct:
The Fleet is subject to the requirements of the Regulation, and the appropriate Certificate(s) of Reported Compliance have been attached hereto.
The Fleet is exempt from the Regulation under section 2449.1(f)(2), and a signed description of the subject vehicles, and reasoning for exemption has been attached hereto. Contractor and/or their subcontractor is unable to procure R99 or R100 renewable diesel fuel as defined in the Regulation pursuant to section 2449.1(f)(3). Contractor shall keep detailed records describing the normal refueling methods, their attempts to procure renewable diesel fuel and proof that shows they were not able to procure renewable diesel (i.e. third party correspondence or vendor bids).
The Fleet is exempt from the requirements of the Regulation pursuant to section 2449(i)(4) because this Project has been deemed an Emergency, as defined under section 2449(c)(18).
Contractor shall only operate the exempted vehicles in the emergency situation and records of the exempted vehicles must be maintained, pursuant to section 2449(i)(4). The Fleet does not fall under the Regulation or are otherwise exempted and a detailed reasoning is attached hereto.
Name of Contractor:________________________________________________ Signature: __________________________________________________ Name: __________________________________________________ Title: __________________________________________________ Date: __________________________________________________ Tuesday, August 05, 2025 Reg CC MTG, Page *595
APPENDIX XII
STATE WATER BOARD REQUIREMENTS
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APPENDIX XII – STATE WATER BOARD REQUIREMENTS
This project is partially funded by the California State Water Resources Control Board (State Water Board). The Contractor along with all associated subcontractors shall comply with the State Water Board Requirements described in this appendix.
1. DRUG-FREE WORKPLACE. The City of Lomita, hereby referred to as the “Recipient” of the State Water Board grant funding, certifies that it will provide a drug-free workplace in compliance with the Drug-Free Workplace Act (Gov. Code. §§ 8350-8357). The Recipient shall publish a statement notifying employees that the unlawful manufacture, distribution, dispensation, possession, or use of a controlled substance is prohibited in the Recipient’s workplace and specifying the actions to be taken against employees for violations of the prohibition. The Recipient shall establish a drug-free awareness program to inform employees about the dangers of drug abuse in the workplace, the Recipient’s policy of maintaining a drug-free workplace, any available drug counseling, rehabilitation and employee assistance programs, and penalties that may be imposed upon employees for drug abuse violations. The Recipient shall provide that every employee who works on the Project receives a copy of the Recipient’s drug-free workplace policy statement and agrees to abide by the terms of the statement as a condition of employment on the Project.
2. INDEMNIFICATION AND STATE REVIEWS. The parties agree that review or approval of Project plans and specifications by the State Water Board is for administrative purposes only, including conformity with application and eligibility criteria, and expressly not for the purposes of design defect review or construction feasibility, and does not relieve the Recipient of its responsibility to properly plan, design, construct, operate, and maintain the Project. To the extent permitted by law, the Recipient agrees to indemnify, defend, and hold harmless the State Water Board and any trustee, and their officers, employees, and agents for the Bonds, if any (collectively, "Indemnified Persons"), against any loss or liability arising out of any claim or action brought against any Indemnified Persons from and against any and all losses, claims, damages, liabilities, or expenses, of every conceivable kind, character, and nature whatsoever arising out of, resulting from, or in any way connected with (1) the Project or the conditions, occupancy, use, possession, conduct, or management of, work done in or about, or the planning, design, acquisition, installation, or construction, of the Project or any part thereof; (2) the carrying out of any of the transactions contemplated by this Agreement or any related document; (3) any violation of any applicable law, rule or regulation, any environmental law (including, without limitation, the Federal Comprehensive Environmental Response, Compensation and Liability Act, the Resource Conservation and Recovery Act, the California Hazardous Substance Account Act, the Federal Water Pollution Control Act, the Clean Air Act, the Toxic Substances Control Act, the Occupational Safety and Health Act, the Safe Drinking Water Act, the California Hazardous Waste Control Law, and California Water Code Section 13304, and any successors to said laws), rule or regulation or the release of any toxic substance on or near the Project; or (4) any untrue statement or alleged untrue statement of any material fact or omission or alleged omission to state a material fact necessary to make the statements required to be stated therein, in light of the circumstances under which they were made, not misleading with respect to any information provided by the Tuesday, August 05, 2025 Reg CC MTG, Page *597
Recipient for use in any disclosure document utilized in connection with any of the transactions contemplated by this Agreement, except those arising from the gross negligence or willful misconduct of the Indemnified Persons. The Recipient must also provide for the defense and indemnification of the Indemnified Persons in any contractual provision extending indemnity to the Recipient in any contract let for the performance of any work under this Agreement and must cause the Indemnified Persons to be included within the scope of any provision for the indemnification and defense of the Recipient in any contract or subcontract. To the fullest extent permitted by law, the Recipient agrees to pay and discharge any judgment or award entered or made against Indemnified Persons with respect to any such claim or action, and any settlement, compromise or other voluntary resolution. The provisions of this section survive the term of this Agreement.
3. INSPECTION. Throughout the useful life of the Project, the State Water Board shall have the right to inspect the Project area to ascertain compliance with this Agreement.
4. NO DISCRIMINATION. The Recipient must comply with Government Code section 11135 and the implementing regulations (Cal. Code Regs, tit. 2, § 11140 et seq.), including, but not limited to, ensuring that no person is unlawfully denied full and equal access to the benefits of, or unlawfully subjected to discrimination in the operation of, the Project on the basis of sex, race, color, religion, ancestry, national origin, ethnic group identification, age, mental disability, physical disability, medical condition, genetic information, marital status, or sexual orientation as such terms are defined under California law, for as long as the Recipient retains ownership or possession of the Project. If Project Funds are used to acquire or improve real property, the Recipient must include a covenant of nondiscrimination running with the land in the instrument effecting or recording the transfer of such real property. The Recipient must comply with the federal American with Disabilities Act of 1990 and implementing regulations as required by Government Code section 11135(b). The Recipient’s obligations under this section shall survive the term of this Agreement. During the performance of this Agreement, Recipient and its contractors and subcontractors must not unlawfully discriminate, harass, or allow harassment against any employee or applicant for employment because of sex, race, color, ancestry, religious creed, national origin, sexual orientation, physical disability (including HIV and AIDS), mental disability, medical condition (cancer), age (over 40), marital status, denial of family care leave, or genetic information, gender, gender identity, gender expression, or military and veteran status. The Recipient, its contractors, and subcontractors must ensure that the evaluation and treatment of their employees and applicants for employment are free from such discrimination and harassment. The Recipient, its contractors, and subcontractors must comply with the provisions of the Fair Employment and Housing Act and the applicable regulations promulgated thereunder. (Gov. Code, §12990, subds. (a)-(f) et seq.; Cal. Code Regs., tit. 2, § 7285 et seq.) Such regulations are incorporated into this Agreement by reference and made a part hereof as if set forth in full. The Recipient, its contractors, and subcontractors must give written notice of their obligations under this clause to labor organizations with which they have a collective bargaining or other agreement. The Recipient must include the nondiscrimination and compliance provisions of this clause in all subcontracts to perform work under this Agreement.
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5. NO OBLIGATION OF THE STATE. Any obligation of the State Water Board herein contained shall not be an obligation, debt, or liability of the State and any such obligation shall be payable solely out of the moneys encumbered pursuant to this Agreement.
6. PERMITS AND AUTHORIZATIONS. Recipient must procure all permits, licenses and other authorizations necessary to accomplish the work contemplated in this Agreement, pay all charges and fees, and give all notices necessary and incidental to the due and lawful prosecution of the work. Signed copies of any such permits or licenses must be submitted to the Division before any construction or implementation begins. Any contractors, outside associates, or consultants required by the Recipient in connection with the services covered by this Agreement shall be limited to such individuals or firms as were specifically identified and agreed to during negotiations for this Agreement, or as are specifically authorized by the State Water Board’s Project Manager during the performance of this Agreement. Any substitutions in, or additions to, such contractors, associates, or consultants, shall be subject to the prior written approval of the State Water Board’s Project Manager.
7. RECORDS, INSPECTION, AUDITS, AND INTERVIEWS; RECORDS RETENTION. The Recipient must maintain separate books, records and other material relative to the Project and retain such books, records, subcontracts, and other material until at least the Records Retention End Date set forth on the Cover Page of this Agreement. The Recipient must require that such books, records, and other material are subject at all reasonable times (at a minimum during normal business hours) to inspection, copying, and audit by the State Water Board, the Department of Finance, the California State Auditor, the Bureau of State Audits, or any authorized representatives of the aforementioned, including federal funding agencies and their auditors, if any. The Recipient must allow and must require its contractors to allow interviews during normal business hours of any employees who might reasonably have information related to such records. The Recipient agrees to include a similar duty regarding audit, interviews, and records retention in any contract or subcontract related to the performance of this Agreement. The provisions of this section survive the term of this Agreement.
8. EXECUTIVE ORDER N-6-22 — RUSSIAN SANCTIONS. On March 4, 2022, Governor Gavin Newsom issued Executive Order N-6-22 (the EO) regarding Economic Sanctions against Russia and Russian entities and individuals. “Economic Sanctions” refers to sanctions imposed by the U.S. government in response to Russia’s actions in Ukraine, as well as any sanctions imposed under state law. The EO directs state agencies to terminate contracts with, and to refrain from entering any new contracts with, individuals or entities that are determined to be a target of Economic Sanctions. Accordingly, should the State Water Board determine Recipient is a target of Economic Sanctions or is conducting prohibited transactions with sanctioned individuals or entities, that shall be grounds for termination of this Agreement. The State Water Board shall provide Recipient advance written notice of such termination, allowing Recipient at least 30 calendar days to provide a written response.
Termination shall be at the sole discretion of the State Water Board.
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The Recipient represents that the Recipient is not a target of economic sanctions imposed in response to Russia’s actions in Ukraine imposed by the United States government or the State of California. The Recipient is required to comply with the economic sanctions imposed in response to Russia’s actions in Ukraine, including with respect to, but not limited to, the federal executive orders identified in California Executive Order N-6-22, located at https://www.gov.ca.gov/wp-content/uploads/2022/03/3.4.22-Russia- Ukraine-ExecutiveOrder.pdf and the sanctions identified on the United States Department of the Treasury website (https://home.treasury.gov/policy-issues/financial-sanctions/sanctions-programsand- country-information/ukraine-russia-related-sanctions). The Recipient is required to comply with all applicable reporting requirements regarding compliance with the economic sanctions, including, but not limited to, those reporting requirements set forth in California Executive Order N-6-22 for all Recipients with one or more agreements with the State of California with an aggregated value of Five Million Dollars ($5,000,000) or more.
Notwithstanding any other provision in this Agreement, failure to comply with the economic sanctions and all applicable reporting requirements may result in termination of this Agreement.
For Recipients with an aggregated agreement value of Five Million Dollars ($5,000,000) or more with the State of California, reporting requirements include, but are not limited to, information related to steps taken in response to Russia’s actions in Ukraine, including but not limited to:
1. Desisting from making any new investments or engaging in financial transactions with Russian institutions or companies that are headquartered or have their principal place of business in Russia;
2. Not transferring technology to Russia or companies that are headquartered or have their principal place of business in Russia; and
3. Direct support to the government and people of Ukraine.
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APPENDIX XIII
DISADVANTAGED BUSINESS
ENTERPRISES
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APPENDIX XIII – DISADVANTAGED BUSINESS ENTERPRISES REQUIREMENTS The City is receiving federal funds for the water main replacement portion of this project.
As such, the following Disadvantaged Business Enterprises Requirements shall be followed by the Contractor. In the language below, the City is the “Recipient”, and the Contractor is the “Prime Contractor”.
Six Good Faith Efforts
Recipients are required to make the following good faith efforts whenever procuring construction, equipment, services, and supplies under an EPA financial assistance agreement. A Native American recipient or prime contractor must follow the six good faith efforts only if doing so would not conflict with exiting Tribal or Federal law, including but not limited to the Indian Self-Determination and Education Assistance Act.
1. Ensure DBEs are made aware of contracting opportunities to the fullest extent practicable through outreach and recruitment activities. For Indian Tribal, State, and Local Government recipients, this will include placing DBEs on solicitation lists and soliciting them whenever they are potential sources.
2. Make information on forthcoming opportunities available to DBEs, arrange time frames for contracts, and establish delivery schedules, where the requirements permit, in a way that encourages and facilitates participation by DBEs in the competitive process. This includes, whenever possible, posting solicitations for bids or proposals for a minimum of 30 calendar days before the bid or proposal closing date.
3. Consider in the contracting process whether firms competing for large contracts could subcontract with DBEs. For Indian Tribal, State, and Local Government recipients, this will include dividing total requirements when economically feasible into smaller tasks or quantities to permit maximum participation by DBEs in the competitive process.
4. Encourage contracting with a consortium of DBEs when a contract is too large for one of these firms to handle individually.
5. Use the services and assistance of the SBA and the Minority Business Development Agency of the Department of Commerce.
6. If the prime contractor awards subcontracts, require the prime contractor to take the steps in items 1 through 5.
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DBE Contract Administration Requirements
Recipients must adhere to the following contract administration requirements:
1. Require the recipient’s prime contractor to pay its subcontractor for satisfactory performance no more than 30 days from the prime contractor’s receipt of payment from the recipient.
2. Require the recipient’s prime contractor to notify the recipient in writing prior to any termination of a DBE subcontractor for convenience by the prime contractor.
3. Require the recipient’s prime contractor to employ the six good faith efforts described in §33.301 in procurement of goods and services, mentioned below:
4. If a DBE subcontractor fails to complete work under the subcontract for any reason, the recipient must require the prime contractor to employ the six good faith efforts described in §33.301 if soliciting a replacement subcontractor.
5. Ensure that each procurement contract it awards contains the term and condition specified in the appendix concerning compliance with the requirements of this part.
6. Ensure that the term and condition in the appendix is included in each procurement contract awarded by an entity receiving an identified loan under a financial assistance agreement to capitalize a revolving loan fund.
7. The contractor shall not discriminate on the basis of race, color, national origin or sex in the performance of this contract. The contractor shall carry out applicable requirements of 40 CFR part 33 in the award and administration of contracts awarded under EPA financial assistance agreements.
Failure by the contractor to carry out these requirements is a material breach of this contract which may result in the termination of this contract or other legally available remedies.
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APPENDIX XIV
MIGRATORY BIRD TREATY ACT (MBTA),
HEALTH AND SAFETY CODE, AND
ARCHAEOLOGICAL REQUIREMENTS
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APPENDIX XIV – MIGRATORY BIRD TREATY ACT (MBTA), CALIFORNIA HEALTH AND
SAFETY CODE, AND ARCHAEOLOGICAL DISCOVERY REQUIREMENTS
This project has undergone a National Environmental Protection Act review through the Environmental Protection Agency. The Contractor shall meet the following NEPA-related and California state requirements.
Nesting Birds and Raptors
To avoid construction impacts to nesting birds and raptors, the construction contractor shall conduct vegetation removal and initial ground disturbance outside the avian breeding season (February 1 through August 31) where feasible. If construction must begin within the breeding season, then not more than seven days before demolition, ground disturbance, and/or vegetation removal commences, a bird and raptor preconstruction survey shall be conducted by a City-approved biologist (retained by the Applicant/Permittee) within the disturbance footprint, plus a 100-foot buff er (300 feet for raptors). The survey shall be conducted by a biologist familiar with the identification of bird species known to occur in southern California. The City-approved biologist shall conduct the preconstruction nesting bird and raptor surveys during the time of day when bird species are active and for a sufficient duration to reliably conclude presence/absence of nesting birds and raptors within the survey area. The City-approved biologist shall submit a summary of the nesting bird and raptor survey results to the Planning Director, or designee, prior to initiation of construction.
If no bird nests are observed, no further mitigation is required. If construction is paused for more than seven days during the nesting season, a new pre-construction survey should be conducted prior to the re-start of construction activities.
If active nests are located, an appropriate avoidance buffer shall be established within which no work activity shall be allowed which would impact these nests. The avoidance buffer shall be established by the qualified biologist on a case-by-case basis based on the species and site conditions. The buffer area(s) shall be closed to all construction personnel and equipment until juveniles have fledged and/or the nest is inactive. A qualified biologist shall confirm that breeding/nesting is complete, and the nest is no longer active prior to removal of the buffer. If work within a buffer area cannot be avoided, then a qualified biologist shall monitor project activities that occur within the buffer on a daily basis. The biological monitor shall evaluate the nesting avian species for signs of disturbance and shall have the authority to stop work to protect the birds.
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California Health and Safety Code
Section 7050.5 of the California Health and Safety Code states that 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 County Coroner has determined if the remains are subject to the Coroner’s authority. If the human remains are of Native American origin, the Coroner must notify the NAHC within 24 hours of this identification.
Unanticipated Discovery of Archaeological Resources
If archaeological resources are unexpectedly encountered during ground-disturbing activities, work in the immediate area must halt and an archaeologist meeting the Secretary of the Interior’s Professional Qualifications Standards for archeology (National Park Service 1983) should be contacted immediately to evaluate the find. If the discovery proves to be eligible for the NHRP, additional work such as data recovery excavation and Native American consultation may be warranted. The lead federal agency shall be afforded the opportunity to review discoveries in accordance with 36 CFR 800.13 – Post-review Discoveries.
Unanticipated Discovery of Human Remains
If human remains are unexpectedly found, California Health and Safety Code Section 7050.5 states no further disturbance shall occur until the County Coroner has made a determination of origin and disposition pursuant to Public Resources Code Section 5097.98.
In the event of an unanticipated discovery of human remains, the County Coroner must be notified immediately. If the human remains are determined to be of Native American origin, the Coroner will notify the NAHC, which will determine and notify an MLD. The MLD has 48 hours from being granted site access to make recommendations for the disposition of the remains. If the MLD does not make recommendations within 48 hours, the landowner shall reinter the remains in an area of the property secure from subsequent disturbance.
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SEWER OR STORM DRAIN MANHOLE AC ASPHALT CONCRETE SSMH SEWER MANHOLE SW SIDEWALK C&G CURB AND GUTTER R/W RIGHT OF WAY PROPOSED NOT TO SCALE CL CLEARANCE NTS PROP WATER METER EXISTING RIGHT OF WAY CENTERLINE TREE SURVEY MONUMENT GUY WIRE WATER VALVE FIRE HYDRANT POWER POLE STREET LIGHT SIGN SDMH STORM DRAIN MANHOLE MH MANHOLE STREET IMPROVEMENT GENERAL NOTES LOCATION MAP NOT TO SCALE 1. ALL WORK SHALL BE IN ACCORDANCE WITH THESE PLANS, THE CITY OF LOMITA STANDARD PLANS, THE CONTRACT PROVISIONS, THE STANDARD SPECIFICATIONS FOR PUBLIC WORKS CONSTRUCTION ("GREENBOOK" OR "SSPWC"), THE STANDARD PLANS FOR PUBLIC WORKS CONSTRUCTION ("GREENBOOK" OR "SPPWC"), CALTRANS STANDARD PLANS AND SPECIFICATIONS, AND CALIFORNIA MANUAL ON UNIFORM TRAFFIC CONTROL DEVICES. ALL REFERENCE SPECIFICATIONS AND STANDARDS SHALL BE THE LATEST EDITION UNLESS OTHERWISE NOTED. 2. WHEN A TECHNICAL CONFLICT IS FOUND TO EXIST IN THE CONTRACT DOCUMENTS THAT CAN NOT BE RESOLVED BY REFERENCE TO PRECEDENCE PROVISIONS IN THE "GREEN BOOK", THE CONTRACTOR SHALL IMMEDIATELY REPORT SAID CONFLICT TO THE CITY ENGINEER FOR RESOLUTION. 3. ALL MATERIALS AND METHODS ARE SUBJECT TO THE APPROVAL OF THE CITY ENGINEER. 4. CONSTRUCTION AND NO-FEE ENCROACHMENT PERMITS SHALL BE OBTAINED FROM THE CITY OF LOMITA PRIOR TO THE START OF ANY WORK. INSPECTION COORDINATION SHALL BE REQUESTED AT LEAST TWO WORKING DAYS PRIOR TO THE START OF ANY WORK IN PUBLIC RIGHT-OF-WAY WITHIN THE CITY LIMITS. 5. ENCROACHMENT PERMITS SHALL BE OBTAINED FROM THE CITY OF ROLLING HILLS ESTATES AND CALTRANS PRIOR TO THE START OF ANY WORK. INSPECTION COORDINATION SHALL BE REQUESTED PRIOR TO THE START OF ANY WORK IN PUBLIC RIGHT-OF-WAY. 6. THE CONTRACTOR SHALL CONFORM TO ALL TRAFFIC CONTROL POLICIES, METHODS AND PROCEDURES DESCRIBED IN CALIFORNIA MANUAL OF UNIFORM TRAFFIC CONTROL DEVICES, LATEST EDITION UNLESS OTHERWISE DIRECTED BY THE CITY TRAFFIC ENGINEER. 7. IT SHALL BE THE RESPONSIBILITY OF THE CONTRACTOR TO MAINTAIN BARRICADES, DELINEATORS OR OTHER TRAFFIC CONTROL DEVICES AT ALL TIMES. 8. THE WALLS AND FACES OF ALL EXCAVATIONS GREATER THAN FIVE (5) FEET IN DEPTH SHALL BE GUARDED BY SHORING, SLOPING OF THE GROUND OR OTHER APPROVED MEANS PURSUANT TO THE REQUIREMENTS OF THE DIVISION OF INDUSTRIAL SAFETY OF THE STATE OF CALIFORNIA. TRENCHES LESS THAN FIVE (5) FEET IN DEPTH SHALL ALSO BE GUARDED WHEN THE POTENTIAL EXISTS FOR GROUND MOVEMENT. 9. THE LOCATIONS OF UTILITIES SHOWN HAVE BEEN DETERMINED FROM AVAILABLE INFORMATION, HOWEVER, IT SHALL BE THE RESPONSIBILITY OF THE CONTRACTOR TO DETERMINE, IN THE FIELD, THE TRUE LOCATION AND ELEVATION OF ANY EXISTING UTILITIES, AND TO EXERCISE PROPER PRECAUTION TO AVOID DAMAGE THERETO. THE CONTRACTOR SHALL CONTACT UNDERGROUND SERVICE ALERT AT 1-800-227-2600 TWO WORKING DAYS BEFORE EXCAVATION. 10. THE CONTRACTOR SHALL COORDINATE CONSTRUCTION WITH ALL UTILITY COMPANIES AND TRASH COLLECTION AGENCY (i.e. ATHENS SERVICES) INCLUDING, BUT NOT LIMITED TO, GAS, TELEPHONE, ELECTRIC, CABLE TELEVISION, DOMESTIC WATER, RECLAIMED WATER, SEWER, STORM DRAIN, FLOOD CONTROL AND STREET SWEEPING. ALL UTILITY COMPANIES AND TRASH COLLECTION AGENCY SHALL BE GIVEN TWO WORKING DAYS NOTICE PRIOR TO WORK AROUND THEIR FACILITIES AND WORK IMPACTING THE TRASH COLLECTION AGENCY OR STREET SWEEPING SCHEDULE. CONTRACTOR SHALL ALLOW ACCESS FOR TRASH COLLECTION TRUCKS. 11. THE CONTRACTOR SHALL REMOVE DEBRIS IN STREET WHILE STREET SWEEPING SERVICES ARE SUSPENDED. 12. THE CONTRACTOR SHALL NOT OPERATE ANY FIRE HYDRANT OR WATER MAIN VALVES WITHOUT APPROPRIATE AGENCY AUTHORIZATION. CONTRACTOR SHALL COORDINATE WITH THE APPROPRIATE WATER COMPANY FOR VALVE OPERATION AND WATER REQUIREMENTS. 13. STATIONING REFERS TO THE CENTERLINE OF STREETS EXCEPT WHERE OTHERWISE NOTED. 14. ADEQUATE CONSTRUCTION CONTROL STAKES SHALL BE SET BY THE ENGINEER TO ENABLE THE CONTRACTOR TO CONSTRUCT THE WORK TO THE PLAN GRADES. THE CONTRACTOR SHALL BE RESPONSIBLE FOR THE PRESERVATION OF BENCHMARKS AND CONSTRUCTION CONTROL STAKING DURING CONSTRUCTION. 15. THE CONTRACTOR SHALL NOT DISTURB EXISTING SURVEY MONUMENTS, MONUMENT TIES OR BENCH MARKS WITHOUT PRIOR NOTIFICATION TO THE CITY ENGINEER. 16. REMOVAL AND REPLACEMENT OF EXISTING SURVEY CONTROL, INCLUDING SURVEY MONUMENTS, MONUMENT TIES AND BENCH MARKS, SHALL BE DONE BY A REGISTERED CIVIL ENGINEER OR LICENSED LAND SURVEYOR. SURVEY MONUMENTS THAT WILL BE DESTROYED AS A RESULT OF THIS CONSTRUCTION SHALL BE REPLACED. THE CONTRACTOR SHALL NOTIFY THE ENGINEER ONE WEEK PRIOR TO CONSTRUCTION. CONTRACTOR SHALL ESTABLISH TIES TO MONUMENTS FOR LATER REPLACEMENT OF THE MONUMENTS. 17. THE CONTRACTOR SHALL MAINTAIN ACCESS FOR LOCAL RESIDENTS AND BUSINESSES AT ALL TIMES. WITHIN NARBONNE AVENUE A MINIMUM 11 FOOT LANE FOR EACH DIRECTION SHALL BE MAINTAINED AT ALL TIMES IN THE CONSTRUCTION AREA FOR THROUGH TRAFFIC, RESIDENTS AND EMERGENCY VEHICLES. IN ADDITION A PARKING LANE ON AT LEAST ONE SIDE OF THE STREET, AND ACCESS TO AND FROM THE SHERIFF'S STATION MUST BE MAINTAINED AT ALL TIMES. 18. THE CONTRACTOR SHALL PROVIDE AND MAINTAIN AN EFFECTIVE MEANS OF DUST CONTROL, INCLUDING ADEQUATE WATERING AT ALL TIMES. 19. ALL GRADING OPERATIONS SHALL BE DISCONTINUED WHEN SUSTAINED WIND VELOCITIES EXCEED 25 MILES PER HOUR. 20. NO MATERIAL OR EQUIPMENT SHALL BE STORED IN THE PUBLIC RIGHT OF WAY WITHOUT OBTAINING A SEPARATE PERMIT FOR THAT PURPOSE. 21. THE CONTRACTOR SHALL NOT CAUSE ANY EXCAVATED MATERIAL, MUD, SILT OR DEBRIS TO BE DEPOSITED ONTO PUBLIC OR PRIVATE PROPERTY ADJACENT TO THE RIGHT OF WAY DURING CONSTRUCTION WITHOUT PRIOR WRITTEN APPROVAL. 22. NO TRENCH BACKFILL SHALL BE PLACED WITHOUT PRIOR WRITTEN APPROVAL OF THE CITY INSPECTOR. 23. A GEOTECHNICAL ENGINEER SHALL CERTIFY ALL BACKFILL COMPACTION. FAILURE TO OBTAIN THE REQUIRED DENSITY SHALL REQUIRE RE-WORKING OF THAT PORTION OF THE WORK UNTIL THE SPECIFIED DENSITY IS OBTAINED. 24. CARE SHOULD BE TAKEN TO PREVENT GRADES, DITCHES, AND SWALES FROM UNDERMINING STREET IMPROVEMENTS. UPON INSPECTION OF THE SITE, THE CITY ENGINEER MAY REQUIRE TEMPORARY NON-ERODIBLE SWALES ENTERING OR LEAVING IMPROVEMENTS. 25. THE CONTRACTOR SHALL NOTIFY THE CITY IF SOIL ODOR OR COLOR POTENTIALLY INDICATES CONTAMINATED SOIL. ONCE THE INSPECTOR ASSIGNED BY THE CITY CONFIRMS THAT HAZARDOUS SOIL IS SUSPECTED, THE CONTRACTOR SHALL FOLLOW GUIDELINES SET BY BID ITEMS 32 TO 35. 26. ALL EXPOSED CONCRETE SURFACES SHALL CONFORM IN GRADE, COLOR AND FINISH TO MATCH EXISTING CONCRETE. 27. NO CONCRETE SHALL BE PLACED UNTIL THE FORMS AND REINFORCING STEEL HAVE BEEN PLACED, INSPECTED AND APPROVED. 28. ALL UNDERGROUND UTILITIES SHALL BE INSTALLED, TESTED AND APPROVED WITH WRITTEN APPROVAL FROM THE ENGINEER PRIOR TO PAVING OF STREETS. 29. IF EXCAVATION DISTURBS EXISTING SUBGRADE, THE CONTRACTOR MUST PREPARE SUBGRADE COMPACTED TO 95% PER SSPWC STANDARDS. 30. THE SUBGRADE SHOULD BE TREATED WITH APPROVED SOIL STERILANT PRIOR TO PLACEMENT OF NEW ASPHALT PAVEMENT SECTION IN ACCORDANCE WITH THE SOIL STERILANT MANUFACTURER'S RECOMMENDATIONS. 31. ALL MANHOLES, CLEANOUTS FRAMES, COVERS AND VALVE BOXES SHALL BE RAISED TO FINISHED GRADE BY THE PAVING CONTRACTOR UPON COMPLETION OF PAVING. 32. UPON COMPLETION OF CONSTRUCTION, CONTRACTOR SHALL RESTORE ALL SIGNING, STRIPING, BARRICADES, AND OTHER TRAFFIC CONTROL DEVICES TO THE SATISFACTION OF THE CITY TRAFFIC ENGINEER. 33. CONTRACTOR SHALL RELOCATE AND/OR REPLACE LANDSCAPING, SPRINKLERS AND SIDEWALKS AFFECTED BY THE CONSTRUCTION TO THE SATISFACTION OF THE CITY ENGINEER. 34. AS-BUILT DRAWINGS SHALL BE PROVIDED BY THE CONTRACTOR TO THE ENGINEER OF RECORD, WHO SHALL PROVIDE RECORD DRAWINGS TO THE CITY ENGINEER. 35. THE CONTRACTOR SHALL NOTIFY BUSINESSES AND RESIDENTS WITHIN 500 FEET OF THE PROJECT LIMITS AND THE CITY OF LOMITA TEN (10) DAYS PRIOR TO IMPLEMENTING ANY CONSTRUCTION WORK. THE NOTIFICATION SHALL INCLUDE CONSTRUCTION STARTING DATES, DAILY WORKING HOURS, DURATION, AND EMERGENCY CONTACT NUMBERS. 36. THE CONTRACTOR SHALL PREPARE SWPPP AND WATER POLLUTION BMPS BY RETAINING A QSD AND QSP TO DEVELOP, AMEND AND IMPLEMENT THE SWPPP. THE CONTRACTOR SHALL SUBMIT THE REQUIRED DOCUMENTS OR REPORTS FOURTEEN (14) DAYS PRIOR TO START OF CONSTRUCTION TO THE REGIONAL WATER QUALITY CONTROL BOARD (RWQCB) AND THE CITY FOR APPROVAL. THE REQUIRED DOCUMENTS INCLUDE TWO (2) HARD COPIES OF THE SWPPP, ONE (1) PDF OF THE SWPPP, ALL REPORTS REQUIRED BY GENERAL PERMIT, AND ANNUAL REPORT. THE CONTRACTOR SHALL NOT START THE WATER POLLUTION CONTROL SITE WORK WITHOUT THE APPROVAL OF THE SWPPP BY THE CITY AND RWQCB 37. THE ENTRANCE AND EXIT OF THE LOS ANGELES COUNTY SHERIFF'S DEPARTMENT LOCATED AT 26123 NARBONNE AVE, IS A CRITICAL FACILITY THAT REQUIRES OPEN ACCESS TO VEHICLES AT ALL TIMES. ANY DISRUPTIONS TO THIS ACCESS MUST BE LIMITED AND IN COORDINATION WITH THE CITY AND THE SHERIFF'S DEPARTMENT. CONTRACTOR TO STOP WORK AND ALLOW ACCESS FOR SHERIFF'S DEPARTMENT VEHICLES AT ALL TIMES. 38. CONTRACTOR SHALL COVER EXISTING STREET SWEEPING SIGNS WITH A NON-DAMAGING, TEMPORARY COVER. 39. NO GRADING, SOIL REMOVAL, SOIL FILL OR OTHER CONSTRUCTION ACTIVITY SHALL BE PERFORMED WITHIN THE LOS ANGELES COUNTY SANITATION DISTRICTS (LACSD) EASEMENT(S) WITHOUT ON-SITE APPROVAL OF THE PROPOSED ACTIVITY BY A SANITATION DISTRICTS INSPECTOR. CONTACT THE WASTEWATER COLLECTION SYSTEMS MANAGER AT (310)638-1161 A MINIMUM OF (2) WEEKS PRIOR TO THE START OF CONSTRUCTION TO ARRANGE FOR INSPECTION. 40. VIBRATORY EQUIPMENT SHALL NOT BE USED OVER THE CHEVRON PIPELINE. 41. CONTRACTOR TO USE LAYDOWN AREA AS SPECIFIED BY THE CITY OF LOMITA PER SPECIFICATION SECTION 3-12. LEGEND UNDERGROUND UTILITIES AND STRUCTURE THE EXISTENCE AND LOCATION OF ANY UNDERGROUND UTILITY PIPES AND/OR STRUCTURES SHOWN ON THESE PLANS WERE OBTAINED BY A SEARCH OF THE AVAILABLE RECORDS. THESE LOCATIONS ARE APPROXIMATE AND SHALL BE CONFIRMED BY THE CONTRACTOR, SO THAT ANY NECESSARY ADJUSTMENT CAN BE MADE IN THE ALIGNMENT AND OR/GRADE OF THE PROPOSED IMPROVEMENT. THE CONTRACTOR IS REQUIRED TO TAKE DUE PRECAUTIONARY MEASURES TO PROTECT ANY UTILITY LINES SHOWN AND ANY OTHER LINES NOT ON RECORD OR NOT SHOWN ON THESE PLANS. NEITHER THE OWNER OR ENGINEER ASSUMES ANY RESPONSIBILITY FOR THE UTILITIES SHOWN/NOT SHOWN. THE CONTRACTOR IS REQUIRED TO TAKE DUE PRECAUTIONARY MEASURES TO PROTECT ALL UTILITIES SHOWN ON THESE PLANS AND/OR ANY OTHER UNDERGROUND FACILITIES NOT OF RECORD OR NOT SHOWN ON THESE PLANS. CALL UNDERGROUND SERVICE ALERT (U.S.A.) 1-800-227-2600 AT LEAST 2 WORKING DAYS PRIOR TO EXCAVATION. PRIVATE ENGINEER'S NOTICE TO CONTRACTORS CONSTRUCTION CONTRACTOR AGREES THAT IN ACCORDANCE WITH GENERALLY ACCEPTED CONSTRUCTION PRACTICES, HE/SHE WILL BE REQUIRED TO ASSUME SOLE AND COMPLETE RESPONSIBILITY FOR JOB SITE CONDITIONS DURING THE COURSE OF CONSTRUCTION OF THE PROJECT, INCLUDING THE SAFETY OF ALL PERSONS AND PROPERTY. THIS REQUIREMENT SHALL BE MADE TO APPLY CONTINUOUSLY AND NOT BE LIMITED TO NORMAL WORKING HOURS, CONSTRUCTION CONTRACTOR FURTHER AGREES TO DEFEND, INDEMNIFY AND HOLD DESIGN PROFESSIONAL HARMLESS FROM ANY AND ALL LIABILITY, REAL OR ALLEGED IN CONNECTION WITH THE PERFORMANCE OF WORK ON THIS PROJECT. EXCEPTING LIABILITY ARISING FROM THE SOLE NEGLIGENCE OF THE DESIGN PROFESSIONAL. THE ENGINEER PREPARING THESE PLANS WILL NOT BE RESPONSIBLE FOR OR LIABLE FOR UNAUTHORIZED CHANGES TO OR USE OF THESE PLANS. ALL CHANGES TO THE PLANS MUST BE IN WRITING AND MUST BE APPROVED BY THE PREPARER OF THESE PLANS. ABBREVIATIONS SHEET NO. DESCRIPTION SHEET INDEX TITLE SHEET TYPICAL SECTION LAYOUT PLANS SIGNING AND STRIPING PLANS WATERLINE PLANS WATERLINE DETAILS PCH TRAFFIC CONTROL PLANS 1 2
34-5 6-8 9-10 11-12 CITY OF LOMITA NARBONNE SOUTH WATER MAIN REPLACEMENT AND STREET RECONSTRUCTION PROJECT PROJECT NO. 374 UTILITIES CONTACTS CONTRACTOR SHALL NOTIFY ALL UTILITY AGENCIES CONCERNED A MINIMUM OF 48 HOURS PRIOR TO CONSTRUCTION INCLUDING BUT NOT LIMITED TO: AT&T ATHENS SERVICES (TRASH COLLECTION) CHARTER CHEVRON PIPELINE & POWER (DAVE ZERLER) CITY OF LOMITA CITY OF LOMITA- WATER DIVISION (EMERGENCY PHONE) CITY OF LOMITA SHERIFF STATION COX COMMUNICATIONS LOS ANGELES COUNTY FIRE DEPARTMENT LOS ANGELES COUNTY SHERIFF DEPARTMENT LOS ANGELES COUNTY SANITATION DISTRICT LOS ANGELES COUNTY FLOOD CONTROL DISTRICT METROPOLITAN WATER DISTRICT SOUTHERN CALIFORNIA EDISON SOUTHERN CALIFORNIA GAS TIME WARNER CABLE UNDERGROUND SERVICE ALERT VERIZON (510) 645-2929 (888) 336-6100 (714) 591-4870 (970) 260-8959 (310) 325-7110 (310) 597-6428 (310) 539-1661 (949) 546-2754 (310) 326-2461 (310) 539-1661 (562) 699-7411 (562) 861-0316 (213) 217-7474 (714) 796-9999 (310) 605-2116 (714) 903-8446 811 (469) 886-4238 1 AB AGGREGATE BASE EX./ EXIST EXISTING WM WATER METER WV WATER VALVE TS TRAFFIC SIGN FH FIRE HYDRANT PAVEMENT LEGEND AC OVERLAY PROJECT SITE NARBONNE AVENUE SEE SHEETS 3-8 CITY LIMITS REV. REVISION DESCRIPTION DATE ENGR. CITY DATE R Know what'sbelow. Callbefore you dig. SM P R O J E C T A N D S H E E T T I T L E DESIGNED BY : PROJECT NO. DRAWN BY : CHECKED BY : SHT OF 13 SHTS RWMM SUBMITTED BY DAVID EVANS & ASSOCIATES : MARIE MARSTON, PE PROJECT MANAGER DATE PREPARED BY: TEL. (310) 325-7110 FAX. (310) 325-4024 24300 NARBONNE AVENUE, LOMITA, CA 90717 T
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CAL I F 17542 17th Street, Suite 150 Tustin, California 92780 Phone: 714.665.4500 100% SUBMITTAL EG EDGE OF GUTTER DLC DETECTOR LOOP CABLE SHERIFF SUBSTATION S PROP COUPLING PROP WATER MAIN CAP PROP WATER VALVE AVG AVERAGE FLG FLANGE MJ MECHANICAL JOINT CIP CAST IRON PIPE DI DUCTILE IRON DIP DUCTILE IRON PIPE SSPWC STANDARD SPECIFICATIONS FOR MUTCD MANUAL ON UNIFORM TRAFFIC CONTROL DEVICES PCC PORTLAND CEMENT CONCRETE TYP TYPICAL VAR VARIOUS, VARIES OD OUTSIDE DIAMETER STD STANDARD PUBLIC WORKS CONSTRUCTION WATER GENERAL NOTES 1. CAUTION: REVIEW APPROVED CONSTRUCTION PLAN. IF CONSTRUCTION REQUIRES WORKERS AND/OR EQUIPMENT TO BE WITHIN 6 FEET OR CRANES OR HOISTING DEVICES TO BE WITHIN 10 FEET OF OVERHEAD ELECTRIC LINES, CALL SOUTHERN CALIFORNIA EDISON AT 310-783-9339 FOR PROJECTS IN RESIDENTIAL AREAS OR 310-783-9331 FOR PROJECTS IN COMMERCIAL AREAS. 2. THE CONTRACTOR SHALL NOTIFY THE PUBLIC WORKS DEPARTMENT AT 310-325-9830 PRIOR TO TRIMMING, REMOVING OR RELOCATING ANY EXISTING TREES. 3. UNLESS OTHERWISE SHOWN, ALL TRAFFIC SIGNS SHALL BE RELOCATED OR REMOVED BY THE CITY. THE CONTRACTOR SHALL NOTIFY THE PUBLIC WORKS DEPARTMENT AT 310-325-9830 AT LEAST 2 WORKING DAYS IN ADVANCE TO ARRANGE THE WORK. 4. THE CONTRACTOR SHALL DISINFECT WATER LINES UNDER THE DIRECTION OF THE CITY'S WATER QUALITY INSPECTOR. THE LOMITA MUNICIPAL WATER DEPARTMENT SHALL COLLECT WATER SAMPLES FOR ANALYSIS SUBSEQUENT TO DISINFECTING OF THE PIPELINE BY THE CONTRACTOR. 5. THE CONTRACTOR SHALL NOTIFY THE INSPECTOR AT LEAST TWO WORKING DAYS IN ADVANCE OF A PROPOSED WATER MAIN OR SERVICE LINE SHUT DOWN. THE CONTRACTOR SHALL NOTIFY THE CUSTOMERS EFFECTED BY THE PROPOSED SHUT DOWN AT LEAST 24 HOURS IN ADVANCE. CUSTOMER NOTIFICATION SHALL CONSIST OF A DOOR HANGER SPECIFING THE DATE(S) AND TIME(S) OF THE PROPOSED SHUT DOWN. NOTICE SHALL CONTAIN THE CONTRACTORS NAME AND TELEPHONE NUMBER. NOTICE SHALL BE APPROVED BY THE INSPECTOR PRIOR TO DISTRIBUTION. 6. OPERATION OF VALVES ON ALL PUBLIC WATER LINES AND THE FIRST NEW VALVE DOWNSTREAM OF A PUBLIC WATER MAIN SHALL BE PERFORMED BY THE LOMITA MUNICIPAL WATER DEPARTMENT UNLESS OTHERWISE SHOWN. 7. FOR PARALLEL CONSTRUCTION ALL WATER LINES SHALL BE INSTALLED WITH A TWO FOOT (MIN.) CLEARANCE FROM EXISTING UTILITY LINES (GAS, TELEPHONE, CABLE, POWER ...). A MINIMUM OF 12" CLEARANCE SHALL BE PROVIDED WHEN CROSSING UTILITY LINES. 8. NO PVC PIPE SHALL BE INSTALLED UPSTREAM OF THE INLET SIDE OF METERS OR DETECTOR CHECK VALVES. 9. CONTRACTOR SHALL MAKE AVAILABLE FOR THE PUBLIC WORKS INSPECTOR'S REVIEW, ON A DAILY BASIS, AS-BUILT DRAWINGS FOR WORK PERFORMED UP TO AND INCLUDING THE PREVIOUS DAY'S ACTIVITIES. WORK SHALL NOT BE CONSIDERED AS COMPLETE UNTIL AS-BUILTS ARE SUBMITTED TO AND ACCEPTED SY THE CITY ENGINEER. 10. ALL FLANGE NUTS, BOLTS AND WASHERS SHALL BE 316 S.S. UNLESS OTHERWISE SHOWN. Tuesday, August 05, 2025 Reg CC MTG, Page *607 TYPICAL SECTION NARBONNE AVENUE 1+94 TO 17+90 NOT TO SCALE 40.0' 80.0' CL 40.0' 6.0' PARKING LANE W'LY R/W E'LY R/W 10.0' 30.0' 22.0'
2.0"AC
5 P C&G
P EX. AB C&G
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P
4 6.0"
3 3 P SIDEWALK SIDEWALK
P 2.0' C&G 2.0' C&G 10
2 REV. REVISION DESCRIPTION DATE ENGR. CITY DATE
R Know what'sbelow. Callbefore you dig. SM P R O J E C T A N D S H E E T T I T L E DESIGNED BY : PROJECT NO. DRAWN BY : CHECKED BY : SHT OF 13 SHTS RWMM SUBMITTED BY DAVID EVANS & ASSOCIATES : MARIE MARSTON, PE PROJECT MANAGER DATE PREPARED BY: TEL. (310) 325-7110 FAX. (310) 325-4024 24300 NARBONNE AVENUE, LOMITA, CA 90717 T
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CAL I F 17542 17th Street, Suite 150 Tustin, California 92780 Phone: 714.665.4500 100% SUBMITTAL CONSTRUCTION NOTES: 2 INSPECT EXPOSED UTILITY TRENCHES AND PATCHES, REPAIR AND REPLACE AS REQUIRED 3 TAPER AC PAVEMENT THROUGH 6' PARKING LANE TO 0" AT LIP OF GUTTER 4 CONSTRUCT 4.0" ASPHALT CONCRETE BASE AND LEVEL SURFACE (TYPE B PG 64-10, 3 4" MAXIMUM AGGREGATE MIXTURE) 5 CONSTRUCT 2” THICK CONVENTIONAL HOT MIX ASPHALT WEARING SURFACE OVERLAY (TYPE B PG 64-10, 1 2" MAXIMUM AGGREGATE MIXTURE) 10 SEE SHEET 10 FOR TYPICAL TRENCH DETAIL. SEE SHEETS 6 THROUGH 10 FOR WATER MAIN REPLACEMENT PLANS 1 COLD MILL 4.5” EXISTING AC PAVEMENT SECTION (AC AND/OR AB AS EXISTS) P PROTECT IN PLACE (ITEM AS NOTED) LEGENDCONSTRUCT FULL DEPTH AC OVER VARIABLE DEPTH OF AB (REFER TO CONSTRUCTION NOTE 10) Tuesday, August 05, 2025 Reg CC MTG, Page *608
FO FO FO FO FO FO FO FO FO FO FO FO FO FO FO FO FO FO FO G(ABN)
G(ABN)
G(ABN)
G(ABN)
G(ABN)
E
E
E
2''G 2''G 2''G 2''G 2''G 2''G 2''G 2''G
2"G 6''W 6''W 6''W 6''W 6''W 6''W
W 8''S 8''S 8''S 8''S 8''S 8''S 8''S 8''S 8''S 8''S 8''S 8''S 8''S SD SD
12''W 12''W 12''W 12''W 12''W 12''W 12''W 12''W 12''W
12''W
E
E
E
E
E
E
E
E
E
E
T
T
T
T
T
T
T
T
T
T
E
E
E
E
E
W
W
W
W
W
W
T
T
T
T
T
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T
T
T
T
T
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T
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W
1+00.00 2+00.00 3+00.00 4+00.00 5+00.00 6+00.00 7+00.00 8+00.00 9+00.00 BP: 1+00.00
Mid: 1+48.88
PT: 1+97.77
STA 1+00.00 DESIGN SPEED = 25 mi/h
1+50.00 2+50.00 3+50.00 4+50.00 5+50.00 6+50.00 7+50.00 8+50.00 9+50.00 FO FO FO FO FO FO FO FO FO FO FO FO FO FO FO FO FO FO FO G(ABN)
G(ABN)
G(ABN)
G(ABN)
G(ABN)
E
E
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2''G 2''G 2''G 2''G 2''G 2''G 2''G 2''G
2"G 6''W 6''W 6''W 6''W 6''W 6''W
W 8''S 8''S 8''S 8''S 8''S 8''S 8''S 8''S 8''S 8''S 8''S 8''S 8''S SD SD
12''W 12''W 12''W 12''W 12''W 12''W 12''W 12''W 12''W
12''W
E
E
E
E
E
E
E
E
E
E
T
T
T
T
T
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T
T
T
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E
E
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W
W
W
W
W
W
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
W
CO TS WM WV WV
PLM
PLM
PLM WV WV WMWM P WV
WM WV WMWMWMWMWMWM WV P WV WM
T TPC WM
T TPC WMWM
GV
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TWMTPC
TVTVC
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PEPB WM S
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WM WV
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S
S S
S
S
26' PVTDRWY
PVT DRWY FIRE LN
VISTA LOMITA LN
7553-003-030
7553-003-037
7553-003-(90 - 113)
7553-003-902
7553-003-114
7553-003-012
7553-003-013
7553-003-903
7553-003-114
7553-003-902
7553-005-003
7553-005-002
7553-005-031
7553-005-004
7553-005-(034 - 071)
VISLOMA PL
7553-005-(073 - 097)
7553-005-005
1+00 2+00 3+00 4+00 5+00 6+00 7+00 8+00 9+00 EXIST CITY R/W EXIST EG EXIST CL
80.0'
40.0' 40.0'
30.0' 10.0' 30.0' 10.0'
7 7
7 7
7 6
6 6
6 6
6 9
9 1 2
4 5 NARBONNE AVE
9 7
CITY LIMITS
1 2
4 5 EXIST CITY R/W EXIST EG EXIST CL
3 3
STA 1+97.05 PAVEMENT REHABILITATION LIMITS WITHIN CITY OF LOMITA 10 10
STA 1+94.59 EXIST CITY R/W
6 PAVEMENT REHABILITATION LIMITS OUTSIDE OF CITY OF LOMITA (WITHIN ROLLING HILLS ESTATES)
CHEVRON EASEMENT SEE GENERAL NOTE FOR PAVEMENT TRANSITION HEREON SHERIFF SUBSTATION CHEVRON PIPELINES 6 SEE PAVEMENT TRANSITION DETAIL HEREON 25' SEE GENERAL NOTE FOR CHEVRON EASEMENT HEREON 11
W W W W W
8''S
8''W 8''W
8''S
6''W 6''W W(ABN) FO FO FO FO FO FO FO FO FO FO FO FO FO
FO FO FO
FO FO FO FO FO FO FO FO
4''G
4''G 4''G
2''G 2''G G(ABN) G(ABN) G(ABN)
G(ABN) G(ABN) G(ABN) G(ABN)
E
E
E
E
E
E
E
E 4''G 4''G 4''G 4''G 2''G 2''G 2''G 6''W 6''W 6''W 6''W 6''W 6''W 6''W 8''S 8''S 8''S 8''S 8''S 8''S 8''S 8''S 8''S 8''S 8''S 8''S 8''S 8''S 8''S 8''S FO FO FO FO FO FO FO FO FO 12''W 12''W 12''W 12''W 12''W 12''W 12''W 12''W E
E
E
E
10"W
10"W
E
E
E
E
E
E
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
e(oh)
e(oh)
SD
FO FO FO
W
W
W
W
T
T T
T T T T T T T T T
T T T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
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T
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T
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W
E
G
T10+00.00 11+00.00 12+00.00 13+00.00 14+00.00 15+00.00 16+00.00 17+00.00 18+00.00 19+00.00 PI: 18+31.03 9+50.00 10+50.00 11+50.00 12+50.00 13+50.00 14+50.00 15+50.00 16+50.00 17+50.00 18+50.00
W W W W W
8''S
8''W 8''W
8''S
6''W 6''W W(ABN) FO FO FO FO FO FO FO FO FO FO FO FO FO
FO FO FO
FO FO FO FO FO FO FO FO
4''G
4''G 4''G
2''G 2''G G(ABN) G(ABN) G(ABN)
G(ABN) G(ABN) G(ABN) G(ABN)
E
E
E
E
E
E
E
E 4''G 4''G 4''G 4''G 2''G 2''G 2''G 6''W 6''W 6''W 6''W 6''W 6''W 6''W 8''S 8''S 8''S 8''S 8''S 8''S 8''S 8''S 8''S 8''S 8''S 8''S 8''S 8''S 8''S 8''S FO FO FO FO FO FO FO FO FO 12''W 12''W 12''W 12''W 12''W 12''W 12''W 12''W E
E
E
E
10"W
10"W
E
E
E
E
E
E
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
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e(oh)
e(oh)
SD
FO FO FO
W
W
W
W
T
T T
T T T T T T T T T
T T T
T
T
T
T
T
T
T
T
T
T
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T
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T
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T
T
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T
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T
T
W
E
G
T
WM
T WV WV WV WM S
T
S WM
UR
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T TPC WM WMWMT WM
T WV WM
SL
134.83
545
WM WM WM
T TPC S WVWV S UTIL
TPC WM
T TPC TV WM
P TPC T P WV
U TPC
TPC CO WV TV WV WMWMWMWM WMWMWM
WMWM
T TS
T TPC
BOLL
127.87
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127.78
671 TV WV WV WV WMWMTV P
GV WV WV S S ASMH
124.30
728 D TSPEPB PEPB WV S ASMH
122.85
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TS TCB TS WV TS GV TSTSPB
125.28
816
GV
WV D
WV GV S WVWV WV S
PVT DRWY
PVT DRWY 7553-003-(44 - 88)
7553-002-013
7553-002-(102 - 125)
7553-002-019
7553-002-021
7553-002-131
7553-002-131
7553-006-042
7553-006-043
7553-006-189
7553-006-039
7553-006-038
7553-006-041
7553-006-041
7553-006-017
7553-006-163
7553-006-039
7553-006-(112 - 157) 10+00 11+00 12+00 13+00 14+00 15+00 16+00 17+00 18+00 EXIST CITY R/W EXIST EG EXIST CL EXIST CITY R/W EXIST EG EXIST CL EXIST CITY R/W EXIST EG EXIST CL
80.0'
40.0' 40.0'
30.0' 10.0' 30.0' 10.0'
80.0'
40.0' 40.0'
30.0' 10.0' 30.0' 10.0'
7 7
7 7
7 7
7 7
7 6
6 6
6 6
9 NARBONNE AVE
PACIFIC COAST
HWY
8 8
9 9
9 9
9 1 2
3 4
5 1 2
3 4
5 STA 17+89.76 PAVEMENT REHABILITATION LIMITS EXIST CALTRANS R/W EXIST CALTRANS R/W 10 10 10 SEE PAVEMENT TRANSITION DETAIL HEREON 10' REV. REVISION DESCRIPTION DATE ENGR. CITY DATE R Know what'sbelow. Callbefore you dig. SM P R O J E C T A N D S H E E T T I T L E DESIGNED BY : PROJECT NO. DRAWN BY : CHECKED BY : SHT OF 13 SHTS RWMM SUBMITTED BY DAVID EVANS & ASSOCIATES : MARIE MARSTON, PE PROJECT MANAGER DATE PREPARED BY: TEL. (310) 325-7110 FAX. (310) 325-4024 24300 NARBONNE AVENUE, LOMITA, CA 90717 T
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CAL I F 17542 17th Street, Suite 150 Tustin, California 92780 Phone: 714.665.4500 100% SUBMITTAL CONSTRUCTION NOTES: 2 INSPECT EXPOSED UTILITY TRENCHES AND PATCHES, REPAIR AND REPLACE AS REQUIRED 3 TAPER AC PAVEMENT THROUGH 6' PARKING LANE TO LIP OF GUTTER 4 CONSTRUCT 4.0" ASPHALT CONCRETE BASE AND LEVEL SURFACE (TYPE B PG 64-10, 3 4" MAXIMUM AGGREGATE MIXTURE) 5 CONSTRUCT 2” THICK CONVENTIONAL HOT MIX ASPHALT OVERLAY(TYPE B PG 64-10, 1 2" MAXIMUM AGGREGATE MIXTURE) 6 ADJUST SEWER MANHOLE FRAME AND COVER TO GRADE, SEE GENERAL NOTES #3. 7 ADJUST WATER VALVE BOX AND COVER TO GRADE 8 ADJUST GAS VALVE BOX AND COVER TO GRADE 9 ELECTRICAL (SCE) MANHOLE/VAULT FRAME AND COVER TO BE ADJUSTED TO GRADE BY OTHERS 10 SEE SHEET 10 FOR TYPICAL TRENCH DETAIL. SEE SHEETS 6 THROUGH 10 FOR WATER MAIN REPLACEMENT PLANS 11 TAPER AC PAVEMENT THROUGH TRANSITION LENGTH TO 0" AT EXISTING PAVEMENT TIE-IN 1 COLD MILL 4.5” EXISTING AC PAVEMENT SECTION (AC AND/OR AB AS EXISTS) MATCH LINE STA 09+50
SEE ABOVE RIGHT
MATCH LINE STA 09+50
SEE BELOW LEFT LEGEND4-1/2" COLD MILL, 4" AC LEVEL COURSE (REFER TO CONST NOTES 1, 2, 3, 4) 3 CONSTRUCT 2" AC OVERLAY (REFER TO CONST NOTE 5) GENERAL NOTES: 1. CONTRACTOR SHALL GRADE AND COMPACT ANY EXPOSED AGGREGATE BASE IF ENCOUNTERED. 2. CONTRACTOR SHALL CONTACT AND NOTIFY LACSD FOR ADJUSTMENT OF MANHOLE FRAME AND COVER TO NEW GRADE. 3. CONTRACTOR SHALL COORDINATE AND NOTIFY CHEVRON TO CONFIRM THEIR EASEMENT BOUNDARY PRIOR TO CONSTRUCTION. USE OF VIBRATORY EQUIPMENT IS PROHIBITED IN THE CHEVRON EASEMENT. A LIST OF EQUIPMENT PROPOSED FOR USE IN THE EASEMENT SHALL BE SUBMITTED TO CHEVRON FOR APPROVAL PRIOR TO CONSTRUCTION. CONSTRUCT FULL DEPTH AC OVER VARIABLE DEPTH OF AB (REFER TO CONSTRUCTION NOTE 10) SECTION DETAIL FOR PAVEMENT TRANSITION EXISTING PAVEMENT 1.5" AC TO BE TRANSITIONED TRANSITION PROPOSED PAVEMENT LENGTH PER PLAN 4-1/2" COLD MILL, 4" AC LEVEL COURSE, CONSTRUCT 2" AC OVERLAY - TAPER AC OVERLAY PAVEMENT THROUGH PAVEMENT TRANSITION LENGTH (PER PLANS) TO 0" TO MEET EXISTING PAVEMENT. SEE PAVEMENT TRANSITION DETAIL HEREON. 11 4" AC BASE 2" AC OVERLAY Tuesday, August 05, 2025 Reg CC MTG, Page *609 26' PVTDRWY
PVT DRWY FIRE LN
VISTA LOMITA LN
7553-003-030
7553-003-037
7553-003-(90 - 113)
7553-003-902
7553-003-114
7553-003-012
7553-003-013
7553-003-903
7553-003-114
7553-003-902
7553-005-003
7553-005-002
7553-005-031
7553-005-004
7553-005-(034 - 071)
VISLOMA PL
7553-005-(073 - 097)
7553-005-005 NARBONNE AVE
CITY LIMITS
CO TS P P
T
T
T
T
TV
T S
P S
TT
T S D
D D
S
S
T
S
S S
S
S 255' EXIST EG EXIST CL EXIST R/W EXIST EG EXIST CL PROPOSED SIGN (ONE POST) PROPOSED 100' 1 1 2 1,018' INSTALL WHITE BIKE LANE SYMBOL WITH PERSON AND BIKE LANE ARROW IN GREEN BOX (132" X 60") PM 245' 6 250'
8 5 1,350'
4 1,350'
5 1,250'
4 1,250' INSTALL TWO-WAY LEFT TYPE IV ARROWS PM INSTALL TWO-WAY LEFT TYPE IV ARROWS PM EXIST W4-2 SIGN RM RM EXIST W9-1 SIGN 1 1
1 STA 1+80.89
JOIN EXIST STRIPING
CHEVRON EASEMENTSHERIFF SUBSTATION INSTALL WHITE BIKE LANE SYMBOL WITH PERSON AND BIKE LANE ARROW IN GREEN BOX (132" X 60") PM EXIST R/W R81(CA) IS R81B(CA) IS R81(CA) R81A(CA)
PVT DRWY
PVT DRWY 7553-003-(44 - 88)
7553-002-013
7553-002-(102 - 125)
7553-002-019
7553-002-021
7553-002-131
7553-002-131
7553-006-042
7553-006-043
7553-006-189
7553-006-039
7553-006-038
7553-006-041
7553-006-041
7553-006-017
7553-006-163
7553-006-039
7553-006-(112 - 157) NARBONNE AVE
PACIFIC COAST HWY
T
S
T
S
T T
T
T S
S UTIL
T TV PT P
U
CO
TV
T TS
TTV TV P
S S D TSP
P S TS
TS TS TS TS S EXIST R/W EXIST EG EXIST CL EXIST R/W EXIST EG EXIST CL 50' 175' 2 1,018'
3 175'
5 1,243'
4 1,243'
5 1,243'
4 1,243'
3 175' INSTALL WHITE BIKE LANE SYMBOL WITH PERSON AND BIKE LANE ARROW IN GREEN BOX (132" X 60") PM INSTALL TWO-WAY LEFT TYPE IV ARROWS PM INSTALL TWO-WAY LEFT TYPE IV ARROWS PM INSTALL TYPE IV (R) ARROW PM INSTALL TYPE IV (L) ARROW PM 7 1 225' 1
1 1
1 SEE NOTE 12 INSTALL TYPE IV (L) ARROW PM INSTALL BIKE SHARE ARROW PM PM PM INSTALL BIKE SHARE ARROW IN GREEN BOX (132" X 60") INSTALL TYPE IV (R) ARROW IS R3-7 R4-4 IS 10+00 11+00 12+00 13+00 14+00 15+00 16+00 17+00 18+00 INSTALL WHITE BIKE LANE SYMBOL WITH PERSON AND BIKE LANE ARROW IN GREEN BOX (132" X 60") PM INSTALL WHITE BIKE LANE SYMBOL WITH PERSON AND BIKE LANE ARROW IN GREEN BOX (132" X 60") PM IS R81A(CA) R28(CA) PM 50' GREEN STRIPING IS R81(CA) R81(CA) IS IS CONSTRUCTION NOTES 1 INSTALL BLUE REFLECTORIZED PAVEMENT MARKER (RPM) ACROSS FROM FIRE HYDRANT PER CALIFORNIA MUTCD SECTION 3B.11 AND FIGURE 3B-102(CA) INSTALL 4" DOUBLE YELLOW, PER DETAIL 22 PER CALTRANS INSTALL 4" YELLOW TWO-WAY LEFT TURN LANE, PER DETAIL 32 PER CALTRANS INSTALL 8" WHITE CHANNELIZING LINE, PER DETAIL 38 PER CALTRANS INSTALL 4" WHITE PARKING LANE INSTALL 6" WHITE BIKE LANE, PER DETAIL 39 PER CALTRANS INSTALL 6" WHITE DASHED BIKE LANE, PER DETAIL 39A PER CALTRANS INSTALL 11' WIDE WHITE CONTINENTAL CROSS WALK WITH 2' STRIPES @ 3' SPACING INSTALL 6" WHITE SOLID LINE, PER DETAIL 27B PER CALTRANS REMOVE CONFLICTING SIGN AND DELIVER TO CITY OF LOMITA PUBLIC WORKS YARD PAVEMENT MARKINGS OR ARROWS AS NOTED, PER CALTRANS STANDARD PLAN A24A-H INSTALL SIGN(S) AND POST AS NOTED EXISTING 1234
567RMPM8 REV. REVISION DESCRIPTION DATE ENGR. CITY DATE R Know what'sbelow. Callbefore you dig. SM P R O J E C T A N D S H E E T T I T L E DESIGNED BY : PROJECT NO. DRAWN BY : CHECKED BY : SHT OF 13 SHTS RWMM SUBMITTED BY DAVID EVANS & ASSOCIATES : MARIE MARSTON, PE PROJECT MANAGER DATE PREPARED BY: TEL. (310) 325-7110 FAX. (310) 325-4024 24300 NARBONNE AVENUE, LOMITA, CA 90717 T
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CAL I F 17542 17th Street, Suite 150 Tustin, California 92780 Phone: 714.665.4500 100% SUBMITTAL MATCH LINE STA 09+50
SEE ABOVE RIGHT
MATCH LINE STA 09+50
SEE BELOW LEFT
4 SIGNING AND STRIPING GENERAL NOTES (FOR SHEETS 4-5) 1. CONSTRUCTION PERMITS SHALL BE OBTAINED FROM THE CITY OF LOMITA PUBLIC WORKS DEPARTMENT PRIOR TO THE START OF ANY WORK. INSPECTION COORDINATION SHALL BE REQUESTED AT LEAST TWO WORKING DAYS PRIOR TO THE START OF ANY WORK WITHIN PUBLIC RIGHT-OF-WAY. 2. ALL WORK, MATERIALS, EQUIPMENT AND TEMPORARY TRAFFIC CONTROL SHALL CONFORM TO THESE PLANS, THE CITY OF LOMITA DESIGN STANDARDS, THE CITY'S SPECIAL PROVISIONS, CALTRANS STANDARD PLANS AND SPECIFICATIONS, LATEST EDITIONS, AND THE CALIFORNIA MANUAL ON UNIFORM TRAFFIC CONTROL DEVICES, LATEST EDITION. 3. IT SHALL BE THE RESPONSIBILITY OF THE CONTRACTOR TO MAINTAIN TEMPORARY TRAFFIC CONTROL AT ALL TIMES. 4. PROTECT ALL EXISTING SIGNS. UNLESS OTHERWISE SHOWN ON THE PLANS, SIGNS AND SIGNPOSTS THAT ARE REMOVED SHALL BE SALVAGED AND DELIVERED TO THE CITY OF LOMITA PUBLIC WORKS YARD. 5. ALL STRIPING AND PAVEMENT MARKINGS SHALL BE THERMOPLASTIC IN ACCORDANCE WITH THE GREENBOOK SSPWC 214-5. 6. REMOVE ALL EXISTING CONFLICTING TRAFFIC STRIPING, MARKING, ARROW OR CHANNELIZER AS NOTED, INCLUDING RAISED PAVEMENT MARKERS. STRIPING AND PAVEMENT MARKINGS TO BE REMOVED SHALL BE REMOVED BY SANDBLASTING OR OTHER APPROVED METHODS, NONE OF WHICH SHALL DAMAGE THE PAVEMENT. THE 'BLACK OUT' METHOD OF REMOVAL IS NOT PERMITTED. ANY PAVEMENT DAMAGED BY REMOVALS SHALL BE REPAIRED PER APPROVAL OF THE CITY ENGINEER AT NO COST TO THE CITY. 7. CONTROL POINTS OR "CAT TRACKING" SHALL BE APPROVED BY THE CITY ENGINEER PRIOR TO APPLICATION OF PAVEMENT STRIPING AND LEGENDS. NOTIFY THE CITY AT LEAST TWO DAYS PRIOR FOR APPROVAL OF "CAT TRACKING." 8. STRIPING AND PAVEMENT MARKINGS SHALL BE APPLIED IN ACCORDANCE WITH MANUFACTURERS' SPECIFICATIONS. 9. BLUE RAISED PAVEMENT MARKERS SHALL BE INSTALLED AT ALL FIRE HYDRANT LOCATIONS PER CALIFORNIA MUTCD SECTION 3B.11 AND FIGURE 3B-102(CA). 10. AS-BUILT DRAWINGS SHALL BE PROVIDED BY THE CONTRACTOR TO THE ENGINEER OF RECORD, WHO SHALL PROVIDE RECORD DRAWINGS AND ELECTRONIC AUTOCAD FILES TO THE CITY ENGINEER. 11. CROSSWALK SHALL BE 11' WIDE BETWEEN 12" STRIPES AND SHALL BE CENTERED TO THE HANDICAP RAMP UNLESS OTHERWISE SHOWN. 12. INSTALL NEW TYPE E LOOP DETECTOR AND SPLICE TO EXISTING DLC AS SHOWN IN ACCORDANCE WITH CALTRANS SPECIFICATIONS. EXACT LOOPS AND PULL BOX LOCATIONS TO BE VERIFIED AND CONFIRMED BY THE CONTRACTOR. CONTRACTOR SHALL COORDINATE WITH CALTRANS. LOOPS MUST REMAIN ACTIVE DURING CONSTRUCTION. 13. TRAFFIC STRIPING AND PAVEMENT MARKERS SHALL BE INSTALLED PER THE LATEST CALTRANS STANDARD PLANS A20A TO A24F, SEE CONSTRUCTION NOTES FOR DETAIL NUMBER.
MATCH LINE STA 18+50
SEE SHEET 5
Tuesday, August 05, 2025 Reg CC MTG, Page *610
7375-025-028
7373-008-023
JOIN EXIST STRIPING
STA = 23+25
D
S S EXIST R/W EXIST EG EXIST CL
3 175' 3 175' PM INSTALL TYPE IV (L) ARROW INSTALL TWO-WAY LEFT TYPE IV ARROWS PM INSTALL TYPE IV (L) ARROW PM 5 261'
4 261' INSTALL WHITE BIKE LANE SYMBOL WITH PERSON AND BIKE LANE ARROW IN GREEN BOX (132" X 60") PM 4 120' 5 120' 1 225' 175'
2 186'
1PM INSTALL BIKE SHARE ARROW PM INSTALL TYPE IV (R) ARROW INSTALL BIKE SHARE ARROW PMINSTALL TYPE IV (R) ARROW PM R3-7 "EXCEPT BUSES" IS IS R4-4 REMOVE 150' OF RED CURB PAINT AT 25625 NARBONNE AVE 19+00 20+00 21+00 22+00 23+00 24+00 5 271'
4 271' PM BUS ONLY PM 45' GREEN STRIPING INSTALL WHITE BIKE LANE SYMBOL WITH PERSON AND BIKE LANE ARROW IN GREEN BOX (132" X 60") PM INSTALL WHITE BIKE LANE SYMBOL WITH PERSON AND BIKE LANE ARROW IN GREEN BOX (132" X 60") PM 75' GREEN STRIPING PM IS R28(CA) 75' IS CONSTRUCTION NOTES 1 INSTALL BLUE REFLECTORIZED PAVEMENT MARKER (RPM) ACROSS FROM FIRE HYDRANT PER CALIFORNIA MUTCD SECTION 3B.11 AND FIGURE 3B-102(CA) INSTALL 4" DOUBLE YELLOW, PER DETAIL 22 PER CALTRANS INSTALL 4" YELLOW TWO-WAY LEFT TURN LANE, PER DETAIL 32 PER CALTRANS INSTALL 8" WHITE CHANNELIZING LINE, PER DETAIL 38 PER CALTRANS INSTALL 4" WHITE PARKING LANE INSTALL 6" WHITE BIKE LANE, PER DETAIL 39 PER CALTRANS REMOVE CONFLICTING SIGN AND DELIVER TO CITY OF LOMITA PUBLIC WORKS YARD PAVEMENT MARKINGS OR ARROWS AS NOTED, PER CALTRANS STANDARD PLAN A24A-H INSTALL SIGN(S) AND POST AS NOTED EXISTING 1234
5RMPM REV. REVISION DESCRIPTION DATE ENGR. CITY DATE
R Know what'sbelow. Callbefore you dig. SM P R O J E C T A N D S H E E T T I T L E DESIGNED BY : PROJECT NO. DRAWN BY : CHECKED BY : SHT OF 13 SHTS RWMM SUBMITTED BY DAVID EVANS & ASSOCIATES : MARIE MARSTON, PE PROJECT MANAGER DATE PREPARED BY: TEL. (310) 325-7110 FAX. (310) 325-4024 24300 NARBONNE AVENUE, LOMITA, CA 90717 T
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G I NEERCE 38798 Exp. 03/31/25
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CAL I F 17542 17th Street, Suite 150 Tustin, California 92780 Phone: 714.665.4500 100% SUBMITTAL MATCH LINE STA 18+50
SEE SHEET 4
5 132" 24"
60" 24" 30"
40" WHITE BIKE LANE ARROW WHITE "BIKE" SYMBOL BIKE BOX DETAIL NOT TO SCALE GREEN PREFORMED THERMOPLASTIC CENTERLINE OF BIKE LANE CL BIKE LANE CONFLICT ZONE DETAIL NOT TO SCALE DETAIL 39A DETAIL 39A GREEN PREFORMED THERMOPLASTIC 5' OR
VARIES DISTANCE AS SHOWN ON PLANS 4' 8' 4' 8' 4' 60" Tuesday, August 05, 2025 Reg CC MTG, Page *611 184
171.13 PP CO
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172.70 SCO TS116
180.14 TSTB WM
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179.07 SIGN WVWV
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181.22 SIGN
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182.74 PP
130
180.86 GA
139
177.89 SIGN
140
177.79 SIGN PLM
145
179.75 GA
147
179.22 PRM
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179.44 PRM TV151
172.36 TVPB
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173.00 BOTTLE BRUSH TREE PLM
PLM
157
171.66SL
168
182.09 PRM 169 180.41 MON SIGN
175
175.24SLUTIL
176
174.94 UKVL WV
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170.64FH
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171.57 GA WM
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169.62 VLT E
201
166.96SL
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169.21 SIGN WM
217 WVLT
165.19
218 WVLT
165.26
219 WVLT
165.00
220
164.93 WVLT CLO E WV
222
165.09 FIRE UTIL
223
164.20 UKVL
224
164.13SL
225
163.30 FH WM
WM
WM
WM
WM
WM TV234
162.22 TVPB WV
246
164.75 VNT
247
164.53 VNT P
248
163.92 EVLT WV
WM
T
TPC
WM
U
253
162.34 UPB
256
158.75SL T
TPC TV267
156.00 TVPBWM
WM
270
155.78SL
271
157.73 VNT
272
158.80 VNT GV TV292
152.90 TVPB T
293
152.72 TMH WM
298
150.01 SL WV
WV
WV 310
151.29FH
311
151.49SL WM
T
TPCUTIL
314
153.12 UKVL UTIL
315
152.97 VLT WM
TV
TVC
WM
360
151.94 GA
S
115 ASMH
181.48 S
117 ASMH
179.21 S
138 ASMH
177.41
S
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160.52 7553-003-(90 - 113) 7553-003-013 7553-003-012 7553-003-903 7553-003-902 7553-003-114 7553 -003 -902 7553-003-114 7553-005-003 7553-005-004 7553-005-005 7553-005-(073 - 097) 7553-005-(034 - 071)
VISLOMA PL
FIRE LN
PVT DRWY 26' PVT DRWY FO FO FO FO FO FO FO FO FO FO FO FO FO FO FO FO FO FO FO FO FO FO FO FO FO FO
FO FO FO
FO
FO
FO
G(ABN)
G(ABN)
G(ABN)
G(ABN)
G(ABN)
G(ABN)
G(ABN)
G(ABN)
G(ABN)
G(ABN)
8''S
8''S
E
E
E E(UG)
2''G
2''G 2''G 2''G 2''G 2''G 2''G 2''G 2''G 2''G 2''G
G
G
G
2"G 2"G 2"G
G
G
G
6''W 6''W 6''W 6''W 6''W 6''W 6''W 6''W
W 8''S 8''S 8''S 8''S 8''S 8''S 8''S 8''S 8''S 8''S 8''S 8''S 8''S 8''S 8''S 8''S 8''S 8''S 8''S 12''W 12''W 12''W 12''W 12''W 12''W 12''W 12''W 12''W 12''W 12''W 12''W 12''W
12''W
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
T
T
T
T
T
T
T
T
T
T
T
E
E
E
E
E
E
E
E
E
W W
W(ABN)
W W
W W
W W
W W
T
T
T
T
T
T
T
T
T
T
T
T
T
T T
20+00 21+00 22+00 23+00 24+00 25+00 140 150 160 170 180 140 150 160 170 180 19+50 20+00 21+00 22+00 23+00 24+00 25+00 20+00 21+00 22+00 23+00 24+00 25+00 177.5
177.53
174.7
174.70
171.7
171.73
168.7
168.74
165.6
165.62
162.3
162.32
159.2
159.22
156.1
156.12
153.4
153.40
150.8
150.81 8" PVC WATERLINE NARBONNE AVE. PLAN AND PROFILE STA. 20+00 TO STA. 25+00 1. COAT ALL BURIED METALLIC COMPONENTS PER SSPWC SPEC SECTION 210 2. BURIED BOLTS SHALL BE 316 STAINLESS STEEL GRADE B8M. BURIED NUTS SHALL BE 316 STAINLESS STEEL GRADE 8M. 3. PLACE AGGREGATE BASE PER DETAIL 1, SHEET C-5. AC PAVEMENT PER ROADWAY PLANS. 4. ALL FILL AREAS SHALL BE COMPACTED TO A MINIMUM RELATIVE DENSITY OF 95%. 5. PROTECT AND RESTORE LANDSCAPE IMPROVEMENTS IF DISTURBED DURING CONSTRUCTION. 6. MAXIMUM ALLOWED JOINT DEFLECTION FOR PVC PIPE SHALL NOT BE GREATER THAN THREE DEGREES. 7. PROTECT IN-PLACE AND RESTORE IN-KIND IF DAMAGED, ALL PCC SIDEWALK, CURB, GUTTER, DRAIN PIPES, WATER LINES AND ALL EXISTING IMPROVEMENTS NOT SPECIFICALLY CALLED FOR REMOVAL. 8. ALL BURIED PIPE SHALL HAVE 42" MIN. COVER EXCEPT AS SHOWN ON SHEET C-2. 9. FIELD VERIFY EXISTING METER AND SERVICE LINE SIZES PRIOR TO INSTALLING NEW SERVICES. 10. ALL REMOVED HYDRANTS TO BE DELIVERED TO AND UNLOADED AT THE CITY OF LOMITA PUBLIC WORKS YARD. MATCH LINE STA. 25+00 SEE SHEET C-2
1 REV. REVISION DESCRIPTION DATE ENGR. CITY DATE TWO WORKING DAYS BEFORE YOU DIG R Know what'sbelow. Callbefore you dig. ZAW 374 ENGINEERING DIVISION P R O J E C T A N D S H E E T T I T L E APPROVED BY CITY : DESIGNED BY : PROJECT NO. DRAWN BY : CHECKED BY : SHT OF SHTS NAME 12 SYS SXCH INTERIM PUBLIC WORKS DIRECTOR DATE SUBMITTED BY DAVID EVANS AND ASSOCIATES: MARIE MARSTON PROJECT MANAGER DATE Date: Prepared Under The Supervision Of : PREPARED BY: RODNEY C. LANGER, JR. R.C.E. 49309 CITY OF LOMITA NARBONNE SOUTH WATER MAIN REPLACEMENT AND STREET RECONSTRUCTION TEL. (310) 325-7110 FAX. (310) 325-4024 PUBLIC WORKS DEPARTMENT NO WORK SHALL BE DONE ON THIS SITE UNTIL BELOW AGENCY IS NOTIFIED OF INTENTION TO GRADE OR EXCAVATE. 24300 NARBONNE AVENUE, LOMITA, CA 90717 City of Lomita XX/XX/2025 17782 17th Street, Suite 200 Tustin, California 92780 Phone: 714.665.4500 12/06/2024 DWG NO. LINA HERNANDEZ XX/XX/2025 Plot Date:
Save Date:
3/4/2025 7:04 AM
2/24/2025 10:28 AM By: Sys P:\C\CLOM00000122\0400CAD\WA\SHEETS\C-1 SHEET.dwg Scott Stcherbinine By:
File:
80'
40'
32' 32'
6'
40'
1 1 inch = ft. GRAPHIC SCALE 20
0 10 20 40 20 NARBONNE AVE. R/W R/W CITY LIMIT C-1
6 2
4 2
35 4
5 3(4) 3(4) (2) 18
9 9
810
3 4
4 18
4 5 SEE DETAIL 1 ON DWG. C-4 FOR CONNECTION 1119121815
8 8 18 18
8 12 10 11 15 19 CONSTRUCT 8" PVC C900 OR C905 DR14 PIPE PER CITY OF LOMITA STANDARD PLANS AND PROJECT SPECIFICATIONS. TRENCHES PER DETAILS 1 & 3, SHEET C-5. NOTES TO CONTRACTOR: PROFILE NARBONNE AVE STA 20+00 TO STA 25+00 VERTICAL SCALE: 1"=5' HORIZONTAL SCALE: 1"=20' PLAN NARBONNE AVE STA 20+00 TO STA 25+00 NOTE: * MATERIAL UNKNOWN ** DEPTH UNKNOWN (CONTRACTOR TO POTHOLE & VERIFY PRIOR TO CONSTRUCTION) EX. 6" WATER */**
EX. 1" GAS */**
(2) EX. 4" PVC ELEC
(2) EX. 6" WATER */**
EX. 2" GAS
EX. 1" GAS */**
EX. 1" TEL */**
EX. 1" GAS */**
EX. 3/4" STEEL GAS PROPOSED 8" PVC WATER MAIN STA 20+00 - STA 21+65 RESTRAIN ALL JOINTS EX. GRADE ALONG NEW 8" WATER MAIN 10 19 (2) EXP.CIVIL STATE
OF
CA
LIFORNIA
REGISTERED PROFES
SIONAL ENGINEER RECONNECT EXISTING FIRE WATER SERVICE TO EXISTING VAULT, CONTRACTOR TO VERIFY LOCATION AND SIZE. CONSTRUCT 1" WATER SERVICE TO EXISTING WATER METER WITH NEW METER BOX AND COVER PER W-101 AND W-103. CONSTRUCT 1.5" WATER SERVICE TO EXISTING WATER METER WITH NEW METER BOX AND COVER PER W-101 AND W-103. CONSTRUCT 2" WATER SERVICE TO EXISTING WATER METER WITH NEW METER BOX AND COVER PER W-102 AND W-103. ABANDON EXISTING WATERMAIN IN PLACE. FILL WITH 1-SACK SLURRY CEMENT MIX. CONSTRUCT 8" GATE VALVE (FLGxMJ) WITH CONCRETE SUPPORT BLOCK AND RESTRAINED FOLLOWER GLAND PER CITY OF LOMITA STANDARD PLAN W-150. CONSTRUCT 12" GATE VALVE (FLGxMJ) WITH CONCRETE SUPPORT BLOCK AND RESTRAINED FOLLOWER GLAND PER CITY OF LOMITA STANDARD PLAN W-150. CONSTRUCT 8" D.I. BEND (DEFLECTION ANGLE AS SHOWN) WITH THRUST BLOCK PER CITY OF LOMITA STANDARD PLAN W-140. CONSTRUCT "MAIN SIZE" TRANSITION COUPLING. REMOVE EXISTING VALVE BOX, RISER, AND ABANDON VALVE IN PLACE IN CLOSED POSTION CONSTRUCT 12"x8" FLG'D D.I. TEE WITH CONCRETE SUPPORT BLOCK, RESTRAINED GLAND FOLLOWER, AND THRUST BLOCK PER CITY OF LOMITA STANDARD PLAN W-140. CUT EXISTING WATER LINE AND REMOVE INTERFERING PORTIONS. PLUG WITH CONCRETE (NO LESS THAN 6" THICK) AND ABANDON. CONSTRUCTION NOTES Tuesday, August 05, 2025 Reg CC MTG, Page *612
FO FO FO FO FO FO FO FO FO FO FO FO FO FO FO FO FO FO FO FO FO FO FO FO FO FO FO FO FO FO FO FO FO
E
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E
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E(UG)
E
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E
E
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E 2''G 2''G 2''G 2''G 2''G 2''G 2''G 2''G 2''G 2''G
G
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G 6''W 6''W 6''W 6''W 6''W 6''W 6''W 6''W 6''W 8''S 8''S 8''S 8''S 8''S 8''S 8''S 8''S 8''S 8''S 8''S 8''S 8''S 8''S 8''S 8''S 8''S 8''S 8''S 8''S SD SD
SS 12''W 12''W 12''W 12''W 12''W 12''W 12''W 12''W 12''W 12''W 12''W 12''W E
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RIM 138.24
8" IN 129.90
8" OUT 129.85
RIM 138.73
8" IN 130.33
8" OUT 130.30
RIM 143.68
8" IN 136.49
8" IN 134.62
10" OUT 134.41
RIM 143.18
8" IN 134.23
8" IN 134.02
8" OUT 133.98
RIM 143.47
8" IN 131.20
8" IN 131.13
8" OUT 131.10
8" DROP INLET
134.64
RIM 147.54
8" IN 137.92
8" OUT 137.92
RIM 146.96
8" IN 136.97
8" OUT 136.97
3143.19 BM T
325
147.94 TPB WM TV327
146.56 TVPB
328
146.43 FH
329
146.31 SL S
337 ASMH
146.96 P
EPB
WM
S
348 ASMH
147.54 T
350
147.22 TPB T
351
147.09 TPB U
352
146.71 UPB
353
146.78SL
358
146.94 GA
359
146.90 PP
T
TPC
WM
S
364 ASMH
143.47 D
375
143.51 CB MH
380
143.13SL
WM
390
144.41 SL
WV
D
395 CB MH
143.30 D
396 SDMH
142.65 S
397 ASMH
143.18 S
398 ASMH
143.68 U
399
143.28 UMH WM
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TPC
WM
WM
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424
142.29 TPB
426
141.51 FH WV
U
428
141.20 UPB U
429
141.07 UPB
430 WVLT
140.40
431 WVLT
140.52 432 WVLT
140.68
433
140.54 WVLT CLO E
434 WVLT
140.50
435 WVLT
140.42
436 WVLT
140.29
437
140.38 WVLT CLO E WV
WV 440
142.80 WX
441
143.22 WX
444
139.39 EVLT
445
139.22 EVLT
446
139.37 EVLT
447
139.52 EVLT CLO E WM
S
454 ASMH
138.73
455
139.46SL
463
141.59SL T
465
141.56 TPB
466
140.96 TVLT
467
140.85 TVLT
468
140.73 TVLT
469
140.83 TVLT CLO E U
470
141.02 UMH
471
139.88 EVLT
472
139.90 EVLT
473
139.80 EVLT
474
139.75 EVLT CLO E S
479 ASMH
138.24 WM
481
139.00SL
482 WVLT
139.35
483 WVLT
139.49
484 WVLT
139.44
485
139.30 WVLT CLO E
486
137.95 TV494
138.38 TVPB UR
ER
497
138.07 UPB
498
137.97 UPB
499
138.05 UPB
500
137.93 UPB
501
138.08 UPB
506
136.69SL T
TPC
WM
WM
WM
T
513
135.87 TMH WM
528
137.10SL TV531
136.36 TVPB T
532
136.40 TPB U
533
137.01 UPB
535 WVLT
135.42
536 WVLT
135.27
537 WVLT
135.18
538
135.33 WVLT CLO E
539
135.18FH WV
WM
WM 7553-002-(102 - 125) 7553-002-013 7553-003-(44 - 88) 7553-003-037 7553-003-030 7553-006-039 7553-006-038 7553-006-041 7553- 006-039 7553-006-(112 - 157) 7553-005-002 7553-005-031 VISTA
LOMITA
LN PVT DRWY 7553-003-(90 - 113) 25+00 26+00 27+00 28+00 29+00 30+00 STA: 25+67.60 0.00' STA: 26+85.00 STA: 26+92.00 125 130 140 150 125 130 140 150 25+00 26+00 27+00 28+00 29+00 30+00 30+50 26+00 27+00 28+00 29+00 30+00 30+50 146.8
146.83
145.5
145.55
144.2
144.25
143.1
143.08
141.9
141.86
140.6
140.62
139.4
139.41
138.2
138.21
137.0
137.03
135.8
135.83 STA: 26+88.29 45° BEND STA: 26+92.04 45° BEND 8" PVC WATERLINE NARBONNE AVE. PLAN AND PROFILE STA. 25+00 TO STA. 30+50 MATCH LINE STA. 30+50
SEE SHEET C-3 REV. REVISION DESCRIPTION DATE ENGR. CITY DATE TWO WORKING DAYS BEFORE YOU DIG R Know what'sbelow. Callbefore you dig. ZAW 374 ENGINEERING DIVISION P R O J E C T A N D S H E E T T I T L E APPROVED BY CITY : DESIGNED BY : PROJECT NO. DRAWN BY : CHECKED BY : SHT OF SHTS NAME 12 SYS SXCH INTERIM PUBLIC WORKS DIRECTOR DATE SUBMITTED BY DAVID EVANS AND ASSOCIATES: MARIE MARSTON PROJECT MANAGER DATE Date: Prepared Under The Supervision Of : PREPARED BY: RODNEY C. LANGER, JR. R.C.E. 49309 CITY OF LOMITA NARBONNE SOUTH WATER MAIN REPLACEMENT AND STREET RECONSTRUCTION TEL. (310) 325-7110 FAX. (310) 325-4024 PUBLIC WORKS DEPARTMENT NO WORK SHALL BE DONE ON THIS SITE UNTIL BELOW AGENCY IS NOTIFIED OF INTENTION TO GRADE OR EXCAVATE. 24300 NARBONNE AVENUE, LOMITA, CA 90717 City of Lomita XX/XX/2025 17782 17th Street, Suite 200 Tustin, California 92780 Phone: 714.665.4500 12/06/2024 DWG NO. LINA HERNANDEZ XX/XX/2025 Plot Date:
Save Date:
3/4/2025 7:05 AM
2/24/2025 10:42 AM By: Sys P:\C\CLOM00000122\0400CAD\WA\SHEETS\C-2 SHEET.dwg Scott Stcherbinine By:
File:
80'
40'
32' 32'
6'
40' 1 inch = ft. GRAPHIC SCALE 20
0 10 20 40 20 NARBONNE AVE. R/W R/W
SEE SHEET C-1
MATCH LINE STA. 25+00 C-2
7 CONSTRUCTION NOTES
1 5
67 8
6 STA. 25+65 FIRE HYDRANT
7 5 5 5
5 5
5 2
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5 6 STA. 30+35 FIRE HYDRANT
7 8 8 CONSTRUCT 8" PVC C900 OR C905 DR14 PIPE PER CITY OF LOMITA STANDARD PLANS AND PROJECT SPECIFICATIONS. TRENCHES PER DETAILS 1 & 3, SHEET C-5 2 24 STA. 30+38 GATE VALVE 23 STA. 25+68 GATE VALVE 23 24 232425 25 CONSTRUCT 8" PVC (C900) PIPELINE 1 5 PROFILE NARBONNE AVE STA 25+00 TO STA 30+50 VERTICAL SCALE: 1"=5' HORIZONTAL SCALE: 1"=20' PLAN NARBONNE AVE STA 25+00 TO STA 30+50 NOTE: * MATERIAL UNKNOWN ** DEPTH UNKNOWN (CONTRACTOR TO POTHOLE & VERIFY PRIOR TO CONSTRUCTION) EX. 8" SEWER */**
EX. 72" RCP SD
EX. 1" GAS */**
EX. 1" GAS */**
EX. 1" ELEC */** 12 26 2728 27 28 26 12 12
1'-0" 27 23 PROPOSED 8" PVC WATER MAIN EX. GRADE ALONG NEW 8" WATER MAIN STA 26+18 - STA 27+03 RESTRAIN ALL JOINTS 7 23
7 CONSTRUCT 8" GATE VALVE (MJXMJ) WITH CONCRETE SUPPORT BLOCK AND RESTRAINED GLAND FOLLOWERS PER CITY OF LOMITA STANDARD PLAN W-150 1. COAT ALL BURIED METALLIC COMPONENTS PER SSPWC SPEC SECTION 210 2. BURIED BOLTS SHALL BE 316 STAINLESS STEEL GRADE B8M. BURIED NUTS SHALL BE 316 STAINLESS STEEL GRADE 8M. 3. PLACE AGGREGATE BASE PER DETAIL 1, SHEET C-5. AC PAVEMENT PER ROADWAY PLANS. 4. ALL FILL AREAS SHALL BE COMPACTED TO A MINIMUM RELATIVE DENSITY OF 95%. 5. PROTECT AND RESTORE LANDSCAPE IMPROVEMENTS IF DISTURBED DURING CONSTRUCTION. 6. MAXIMUM ALLOWED JOINT DEFLECTION FOR PVC PIPE SHALL NOT BE GREATER THAN THREE DEGREES. 7. PROTECT IN-PLACE AND RESTORE IN-KIND IF DAMAGED, ALL PCC SIDEWALK, CURB, GUTTER, DRAIN PIPES AND ALL EXISTING IMPROVEMENTS NOT SPECIFICALLY CALLED FOR REMOVAL. 8. ALL BURIED PIPE SHALL HAVE 42" MIN. COVER EXCEPT AS SHOWN ON SHEET C-2. 9. FIELD VERIFY EXISTING METER AND SERVICE LINE SIZES PRIOR TO INSTALLING NEW SERVICES. 10. ALL REMOVED HYDRANTS TO BE DELIVERED TO AND UNLOADED AT THE CITY OF LOMITA PUBLIC WORKS YARD. NOTES TO CONTRACTOR: 28 EXP.49309 DOR
CIVIL
STATE
OF
CA
LIFORNIA
REGISTERED PROFES
SIONAL ENGINEER
YEN
C. LA
EGN
R RJ . 9/30/2026 25+00 RECONNECT EXISTING FIRE WATER SERVICE TO EXISTING VAULT, CONTRACTOR TO VERIFY LOCATION AND SIZE. CONSTRUCT 2" WATER SERVICE TO EXISTING WATER METER WITH NEW METER BOX AND COVER PER W-102 AND W-103. SALVAGE EXISTING HYDRANT AND RETURN TO CITY, ABANDON ASSEMBLY, CLOSE GATE VALVE, REMOVE VALVE CAN AND COVER, BACKFILL WITH PCC. FURNISH AND INSTALL 6" FIRE HYDRANT ASSEMBLY PER CITY OF LOMITA STANDARD PLAN. W-111. ABANDON EXISTING WATERMAIN IN PLACE. FILL WITH 1-SACK SLURRY CEMENT MIX. CONSTRUCT 8" D.I. BEND (DEFLECTION ANGLE AS SHOWN) WITH THRUST BLOCK PER CITY OF LOMITA STANDARD PLAN W-140. VERIFY THAT SERVICE IS ACTIVE. IF ACTIVE, REPLACE AND RECONNECT PER CITY STANDARDS. IF INACTIVE, ABANDON, REMOVE METER AND METER BOX. VERIFY THAT SERVICES ARE CONNECTED TO THE 12" WATER MAIN THAT IS TO REMAIN IN SERVICE. IF SO, LEAVE AS-IS. IF CONNECTED TO THE 6" WATER MAIN TO BE ABANDONED REPLACE AND RECONNECT TO THE NEW 8" WATER MAIN. REPLACE EXISTING FIRE PROTECTION VAULT PER CITY OF LOMITA STANDARDS PLAN W-203. METER, PIPING, AND APPURTENANCES TO REMAIN. 2" COMBINATION AIR VAC/AIR RELEASE VALVE AT THE HIGHEST POINT PER CITY OF LOMITA STANDARD PLAN W-160 8" THICK CONCRETE SHOCK PAD PER DETAIL 2, SHEET C-5 Tuesday, August 05, 2025 Reg CC MTG, Page *613 WM
545
134.83SL
550
133.39 VNT
551
133.00 VNT
552
133.26 SIGN
553
132.68 EVLT
554
132.80 EVLT
555
132.89 EVLT
556
132.77 EVLT CLO E
568
133.79SL WM
WM
WM
T
TPC
S
585 ASMH
130.93
586
131.66SL WV
WV
S
594 ASMH
130.80 UTIL
TPC
WM
T
TPC TV601
132.97 TVPB
602
132.45 PPU
603
131.85 PPU WM
607
131.81 SL P
TPC
609 WVLT
132.24
610 WVLT
132.30
611 WVLT
132.36
612
132.26 WVLT CLO E T
617
131.04 TMH P
618
130.29 EMH
620
131.77 FDC WV
626
129.24SL U
TPC
629
129.59 SIGN TPC
CO
640 SSCO
129.44
641 SSCO
129.42
642
129.42FH WV
TV
644
129.64 TPM
645
129.66SL WV
WM
WM
WM
WM
WM
WM
WM
WM
WM 659
129.13
660 BFP
129.20 BFP T
TPCTS666
128.19 TSPB T
TPC
668
127.87 BOLL
669
127.56 BOLL
670
127.51 SL WV
WV
685
127.25SL
687
127.51 FDC
688
126.92 BFP
689
126.82 BFP
690
126.74FH WV
WM
WM 694
126.14 BFP
695
126.02 BFP
696
126.12 BFP
697
126.24 BFP TV698
125.61 TVPB P
699
124.67 EMH GV
WV
WV
S
714 ASMH
123.86
715
130.26 TVLT
716
130.28 TVLT
717
130.26 TVLT
718
130.26 TVLT CLO E
728 ASMH
124.30 D
729
124.40 SDCSTS730
124.42P
TSPB EPB
P
733EPB
124.42 TSA
734
124.50TS WV TS784
123.84 TSPB
785
123.85FH WV 787 TS 124.28 TSPB
788
125.01
LS
813
123.86 TSA
814
124.27 TS GV TS816
125.28 TSPB
817
131.79 EVLT
818
131.85 EVLT
GV
822
123.50 BM 7Y529 (EL = 123.476) WV D
824
122.86 SDCS WV
GV
S
832 ASMH
123.18 WV
WV
WV
S
705 ASMH
124.10 7553-002-131 7553-002-131 7553 -002 -021 7553-002-019 7553-006-043 7553-006-042 7553-006-189 7553-006-163 7553-006-017 7553-006-041 7553-006-041 7553-002 -(102 -125)
W W W W W
W W W W W
8''W 8''W
6''W 6''W W(ABN) FO FO FO FO FO FO FO FO FO FO FO FO FO FO FO FO FOFO FO FO FO FO FO FO FO FO FO 4''G
4''G 4''G
2''G 2''G G(ABN) G(ABN) G(ABN) G(ABN) G(ABN) G(ABN)
G(ABN) G(ABN) G(ABN) G(ABN)
E E
E
E
E
E
E 4''G 4''G 4''G 4''G 4''G 4''G 4''G 4''G 4''G 4''G
G
G 6''W 6''W 6''W 6''W 6''W 6''W 6''W 6''W 6''W 8''S 8''S 8''S 8''S 8''S 8''S 8''S 8''S 8''S 8''S 8''S 8''S 8''S 8''S 8''S 8''S 8''S 8''S 8''S 8''S 8''S 8''S FO FO FO FO FO FO FO FO FO FO FO FO FO FO FO FO FO FO 12''W 12''W 12''W 12''W 12''W 12''W 12''W 12''W 12''W 12''W 12''W E E
E
E
E
E
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10"W
10"W
E
E
E
E
E
E
E
E
E
E
E
E 6''W
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
SD SD
FO FO FO
W
W
W W
W W
W W
T
T
T T
T T T T T
T
T
T T T T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
G
E
G G
T T 31+00 32+00 33+00 34+00 35+00
35+92 STA: 30+61.85 0.00' 115 120 130 140 115 120 130 140 30+50 31+00 32+00 33+00 34+00 35+00 36+00 31+00 32+00 33+00 34+00 35+00 36+00 133.6
133.55
132.5
132.53
131.6
131.64
130.7
130.75
129.8
129.81
128.8
128.84
127.8
127.84
126.8
126.77
125.5
125.51
124.4
124.35 PROPOSED 8" PVC WATER LINE 8" PVC WATERLINE NARBONNE AVE. PLAN AND PROFILE STA. 30+50 TO STA. 35+90± REV. REVISION DESCRIPTION DATE ENGR. CITY DATE TWO WORKING DAYS BEFORE YOU DIG R Know what'sbelow. Callbefore you dig. ZAW 374 ENGINEERING DIVISION P R O J E C T A N D S H E E T T I T L E APPROVED BY CITY : DESIGNED BY : PROJECT NO. DRAWN BY : CHECKED BY : SHT OF SHTS NAME 12 SYS SXCH INTERIM PUBLIC WORKS DIRECTOR DATE SUBMITTED BY DAVID EVANS AND ASSOCIATES: MARIE MARSTON PROJECT MANAGER DATE Date: Prepared Under The Supervision Of : PREPARED BY: RODNEY C. LANGER, JR. R.C.E. 49309 CITY OF LOMITA NARBONNE SOUTH WATER MAIN REPLACEMENT AND STREET RECONSTRUCTION TEL. (310) 325-7110 FAX. (310) 325-4024 PUBLIC WORKS DEPARTMENT NO WORK SHALL BE DONE ON THIS SITE UNTIL BELOW AGENCY IS NOTIFIED OF INTENTION TO GRADE OR EXCAVATE. 24300 NARBONNE AVENUE, LOMITA, CA 90717 City of Lomita XX/XX/2025 17782 17th Street, Suite 200 Tustin, California 92780 Phone: 714.665.4500 12/06/2024 DWG NO. LINA HERNANDEZ XX/XX/2025 Plot Date:
Save Date:
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File:
80'
40'
32' 32'
6'
40' 1 inch = ft. GRAPHIC SCALE 20
0 10 20 40 20 NARBONNE AVE. R/W R/W
SEE SHEET C-2
MATCH LINE STA. 30+50 PACIFIC COAST HWY. C-3
8 14 SEE DETAIL 2 ON DWG. C-4 FOR CONNECTION
1 5
910111218 18
9 9
8 8
8 5
5 5 5
5 5
8 12 10 29 15 202122 15 20 21 22 14 CONSTRUCTION NOTES 26 25 26 1 PROFILE NARBONNE AVE STA 30+50 TO STA 36+00 VERTICAL SCALE: 1"=5' HORIZONTAL SCALE: 1"=20' PLAN NARBONNE AVE STA 30+50 TO STA 36+00 NOTE: * MATERIAL UNKNOWN ** DEPTH UNKNOWN (CONTRACTOR TO POTHOLE & VERIFY PRIOR TO CONSTRUCTION) EX. 1" GAS */**
EX. CONC. ENCASEMENT
(ELEC)
EX. 1" GAS */**
EX. WATER */**
EX. SLURRY
ENCASEMENT (TEL)
EX. 1" GAS */**
EX. 1" GAS */**
EX. 1.5" ELEC
EX. 6" WATER */**
EX. 12" WATER */**
(2) EX. 1" TEL */**EX. 4" GAS
EX. 1" TEL */**
EX. 1" ELEC */** EX. 12" CI WATER CONSTRUCT 8" PVC C900 OR C905 DR14 PIPE PER CITY OF LOMITA STANDARD PLANS AND PROJECT SPECIFICATIONS. TRENCHES PER DETAILS 1 & 3, SHEET C-5 STA 35+83.07 45° BEND 12 EX. GRADE ALONG NEW 8" WATER MAIN STA 35+35- STA 35+92 RESTRAIN ALL JOINTS 1. COAT ALL BURIED METALLIC COMPONENTS PER SSPWC SPEC SECTION 210 2. BURIED BOLTS SHALL BE 316 STAINLESS STEEL GRADE B8M. BURIED NUTS SHALL BE 316 STAINLESS STEEL GRADE 8M. 3. PLACE AGGREGATE BASE PER DETAIL 1, SHEET C-5. AC PAVEMENT PER ROADWAY PLANS. 4. ALL FILL AREAS SHALL BE COMPACTED TO A MINIMUM RELATIVE DENSITY OF 95%. 5. PROTECT AND RESTORE LANDSCAPE IMPROVEMENTS IF DISTURBED DURING CONSTRUCTION. 6. MAXIMUM ALLOWED JOINT DEFLECTION FOR PVC PIPE SHALL NOT BE GREATER THAN THREE DEGREES. 7. PROTECT IN-PLACE AND RESTORE IN-KIND IF DAMAGED, ALL PCC SIDEWALK, CURB, GUTTER, DRAIN PIPES AND ALL EXISTING IMPROVEMENTS NOT SPECIFICALLY CALLED FOR REMOVAL. 8. ALL BURIED PIPE SHALL HAVE 42" MIN. COVER EXCEPT AS SHOWN ON SHEET C-2. 9. FIELD VERIFY EXISTING METER AND SERVICE LINE SIZES PRIOR TO INSTALLING NEW SERVICES. 10. ALL REMOVED HYDRANTS TO BE DELIVERED TO AND UNLOADED AT THE CITY OF LOMITA PUBLIC WORKS YARD. NOTES TO CONTRACTOR: 25 EX. 1" TEL */** 29 18 18 CONSTRUCT 2" WATER SERVICE TO EXISTING WATER METER WITH NEW METER BOX AND COVER PER W-102 AND W-103. ABANDON EXISTING WATERMAIN IN PLACE. FILL WITH 1-SACK SLURRY CEMENT MIX. CUT EXISTING WATER LINE AND REMOVE INTERFERING PORTIONS. PLUG WITH CONCRETE (NO LESS THAN 6" THICK) AND ABANDON. CONSTRUCT 8" GATE VALVE (FLGxMJ) WITH RESTRAINED FOLLOWER GLAND PER CITY OF LOMITA STANDARD PLAN W-150. CONSTRUCT 12" GATE VALVE (FLGxMJ) WITH RESTRAINED FOLLOWER GLAND PER CITY OF LOMITA STANDARD PLAN W-150. CONSTRUCT 8" D.I. BEND (DEFLECTION ANGLE AS SHOWN) WITH THRUST BLOCK PER CITY OF LOMITA STANDARD PLAN W-140. CONSTRUCT DUCTILE IRON(D.I.) FLGXFLG CROSS (SIZE PER PLAN). CONSTRUCT "MAIN SIZE" TRANSITION COUPLING. REMOVE EXISTING VALVE BOX, RISER, AND ABANDON VALVE IN PLACE IN CLOSED POSTION CONSTRUCT 10" x 6" D.I. ECCENTRIC REDUCER WITH THRUST BLOCK PER CITY OF LOMITA STANDARDS PLAN W-140. CONSTRUCT 10" x 8" D.I. ECCENTRIC REDUCER WITH THRUST BLOCK PER CITY OF LOMITA STANDARDS PLAN W-140. CONSTRUCT 12" x 10" D.I. ECCENTRIC REDUCER WITH THRUST BLOCK PER CITY OF LOMITA STANDARDS PLAN W-140. VERIFY THAT SERVICES ARE CONNECTED TO THE 12" WATER MAIN THAT IS TO REMAIN IN SERVICE. IF SO, LEAVE AS-IS. IF CONNECTED TO THE 6" WATER MAIN TO BE ABANDONED REPLACE AND RECONNECT TO THE NEW 8" WATER MAIN. REPLACE EXISTING FIRE PROTECTION VAULT PER CITY OF LOMITA STANDARDS PLAN W-203. METER, PIPING, AND APPURTENANCES TO REMAIN. CONSTRUCT 10" GATE VALVE (FLG) PER CITY OF LOMITA STANDARD PLAN W-150. 3C-5 Tuesday, August 05, 2025 Reg CC MTG, Page *614
CONNECTION DETAILS REV. REVISION DESCRIPTION DATE ENGR. CITY DATE TWO WORKING DAYS BEFORE YOU DIG R Know what'sbelow. Callbefore you dig. ZAW 374 ENGINEERING DIVISION P R O J E C T A N D S H E E T T I T L E APPROVED BY CITY : DESIGNED BY : PROJECT NO. DRAWN BY : CHECKED BY : SHT OF SHTS NAME 12 SYS SXCH INTERIM PUBLIC WORKS DIRECTOR DATE SUBMITTED BY DAVID EVANS AND ASSOCIATES: MARIE MARSTON PROJECT MANAGER DATE Date: Prepared Under The Supervision Of : PREPARED BY: RODNEY C. LANGER, JR. R.C.E. 49309 CITY OF LOMITA NARBONNE SOUTH WATER MAIN REPLACEMENT AND STREET RECONSTRUCTION TEL. (310) 325-7110 FAX. (310) 325-4024 PUBLIC WORKS DEPARTMENT NO WORK SHALL BE DONE ON THIS SITE UNTIL BELOW AGENCY IS NOTIFIED OF INTENTION TO GRADE OR EXCAVATE. 24300 NARBONNE AVENUE, LOMITA, CA 90717 City of Lomita XX/XX/2025 17782 17th Street, Suite 200 Tustin, California 92780 Phone: 714.665.4500 12/06/2024 DWG NO. LINA HERNANDEZ XX/XX/2025 Plot Date:
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File: C-4
9 2C-3 SCALE: 3/8" = 1'-0" CONNECTION TO EXISTING WATERLINE (STA. 35+92) EXISTING 10" GATE VALVE NORMALLY CLOSED KEEP CLOSED DURING ALL TESTING EXISTING 10" GATE VALVE EXISTING 10" D.I.P. WATER MAIN ZONE 2 EXISTING CONDITION PROPOSED CONNECTION NOTES: 1. ALL MECHANICAL JOINT FITTINGS SHALL BE RESTRAINED WITH MEGALUGS. 2. ACTUAL PIPE LENGTH SHALL BE DETERMINED BY LOCATION OF NEXT EXISTING JOINT. 3. LENGTH, DEPTH, AND ELEVATION SHALL BE FIELD DETERMINED. 4. INSTALL CITY APPROVED 316 STAINLESS STEEL NUTS AND BOLTS. 5. BACKFILL SHALL BE 95% RELATIVE COMPACTION PER DETAILS 1 & 3, SHEET C-5. 6. AIR RELEASE VALVES ARE INSTALLED AT HIGH POINTS OR ANYWHERE AIR CAN BE TRAPPED THUS REDUCING THE CARRYING CAPACITY OF PIPELINE. 7. EXISTING WATER LINES, TO BE ABANDONED IN PLACE, SHALL BE FILLED WITH 1-SACK SLURRY CEMENT MIX. 8. NO WEDGE-ACTION RESTRAINT GLANDS ARE TO BE USED ON EXISTING WATER MAINS. WHERE NECESSARY, ONLY USE UNRESTRAINED FOLLOWER GLANDS ON EXISTING PIPES. 10" GATE VALVE (FLG) 10" X 6" REDUCER (FLG) EXISTING 6" C.I.P (1928) WATER MAIN ZONE 2 EXISTING 10" D.I.P. WATER MAIN AND REDUCER ZONE 2 EXISTING GATE VALVE (38-17) EXISTING 12" C.I.P (1966) WATER MAIN ZONE 2 EXISTING 12" C.I.P WATER MAIN ZONE 2 EXISTING 10" D.I.P PLUG 10" COUPLING 10" D.I.P EXISTING 6" C.I.P (1928) WATER MAIN ZONE 2 6" COUPLING 6" D.I.P 12" D.I.P 12" X 10" REDUCER (FLG) 6" COUPLING 10" X 8" REDUCER (FLG) 8" D.I.P 8" PVC 8" D.I. 45° BEND (MJ) 4" GAS STA. 35+54.13 8" D.I. 45° BEND (MJ) 1 C-1 SCALE: 3/8" = 1'-0" CONNECTION TO EXISTING WATERLINE (STA. 20+00) STA 35+92± 10" CROSS (FLG) (CONCRETE BLOCKING NOT SHOWN FOR CLARITY) 8" PVC SEE SHEET C-3 FOR PLAN AND PROFILE EXISTING 12" C.I.P (1966) WATER MAIN ZONE 2 EXISTING 12" C.I.P (1966) WATER MAIN ZONE 2 12" COUPLING 12" D.I.P STA 20+00 12"x8" TEE (FLG) 12" GATE VALVE (FLGxMJ) 12" D.I.P 12" COUPLING 8" GATE VALVE (FLGxMJ) 12" FLGxPE ADAPTER 8" PVC SEE SHEET C-1 FOR PLAN AND PROFILE 8" D.I.P. 22.5° BEND (MJ) 8" PVC PROPOSED CONNECTION EXISTING CONDITION 8" GATE VALVE (FLGxMJ) VERTICAL 45° BEND NOT SHOWN FOR CLARITY. SEE PROFILE C-3 EXP.CIVIL STATE
OF
CA
LIFORNIA
REGISTERED PROFES
SIONAL ENGINEER Tuesday, August 05, 2025 Reg CC MTG, Page *615 DETAILS C-5 10 REV. REVISION DESCRIPTION DATE ENGR. CITY DATE TWO WORKING DAYS BEFORE YOU DIG R Know what'sbelow. Callbefore you dig. ZAW 374 ENGINEERING DIVISION P R O J E C T A N D S H E E T T I T L E APPROVED BY CITY : DESIGNED BY : PROJECT NO. DRAWN BY : CHECKED BY : SHT OF SHTS NAME 12 SYS SXCH INTERIM PUBLIC WORKS DIRECTOR DATE SUBMITTED BY DAVID EVANS AND ASSOCIATES: MARIE MARSTON PROJECT MANAGER DATE Date: Prepared Under The Supervision Of : PREPARED BY: RODNEY C. LANGER, JR. R.C.E. 49309 CITY OF LOMITA NARBONNE SOUTH WATER MAIN REPLACEMENT AND STREET RECONSTRUCTION TEL. (310) 325-7110 FAX. (310) 325-4024 PUBLIC WORKS DEPARTMENT NO WORK SHALL BE DONE ON THIS SITE UNTIL BELOW AGENCY IS NOTIFIED OF INTENTION TO GRADE OR EXCAVATE. 24300 NARBONNE AVENUE, LOMITA, CA 90717 City of Lomita XX/XX/2025 17782 17th Street, Suite 200 Tustin, California 92780 Phone: 714.665.4500 12/06/2024 DWG NO. LINA HERNANDEZ XX/XX/2025 Plot Date:
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File: NOTES: 1. ALL CONSTRUCTION, INCLUDING BACKFILL AND PAVING, SHALL BE PER LATEST APWA STANDARDS. 2. CONTRACTOR SHALL EITHER BACKFILL OPEN TRENCHES AT THE END OF EACH WORKING DAY OR SHALL INSTALL AND MAINTAIN RECESSED PLATES PER PROJECT SPECIFICATIONS. NO OPEN TRENCHES ALLOWED DURING NON-WORKING HOURS. 3. ALL PAVEMENT REMOVAL AND REPLACEMENT IN THE PAVEMENT ZONE SHALL BE IN ACCORDANCE WITH NOTES ON THIS SHEET AND ANY OTHER ENCROACHMENT PERMIT CONDITIONS. 4. INSTALL BLUE WARNING TAPE READING "WATER LINE BELOW" 12" ABOVE AND CENTERED OVER PIPE. 5. TYPICAL TRENCH SECTION IS APPLICABLE TO CITY OF LOMITA RIGHT-OF-WAY. FOR CALTRANS RIGHT-OF-WAY SEE DETAIL 3, THIS SHEET.
TRENCH ZONE
BACKFILL BEDDING CLASS 2 AGGREGATE BASE 95% RELATIVE COMPACTION 6" MIN. 10" MAX. (ON EACH SIDE OF PIPE BELL) IF UNSTABLE SOIL IS ENCOUNTERED, THE CITY REPRESENTATIVE SHALL DETERMINE OVEREXCAVATION DEPTH AND FOUNDATION RE-FILL MATERIAL PER CITY DIRECTION. PIPE LOCATOR WIRE FOR NON-METALLIC PIPE INSTALLATIONS (PER SPECIFICATION) SAND BEDDING PER APWA STD. SPECIFICATION 20"-32" (TYP) *FINISHED AC OVER BASE PAVEMENT 4" AC LEVEL COURSE WITH 2" AC OVERLAY PER STREET IMPROVEMENT PLANS 42" MIN. ROAD REHABILITATION CONTRACTOR TO ENSURE NEW PAVEMENT MATCHES FINISHED SURFACE. CLASS 2 AGGREGATE BASE 95% RELATIVE COMPACTION OR 1.5 SACK SLURRY BACKFILL 54"~60" AVG. DEPTH
1VAR NOT TO SCALE TYPICAL TRENCH DETAIL IN CITY OF LOMITA RIGHT-OF-WAY ASPHALT REINFORCEMENT SEE NOTE 2 3' MIN (TYP.) 1. SHOCK PAD TO BE INSTALLED WHERE 30" MIN. COVER CANNOT BE MAINTAINED, STA 26+47 TO STA 26+90 AS SHOWN ON SHEET C-2. 2. WHERE MIN. 6" BASE COURSE CANNOT BE MAINTAINED, INSTALL ASPHALT REINFORCEMENT, TENSAR GLASGRID OR APPROVED EQUAL, UNDER ASPHALT COURSE 3. CONCRETE MIX DESIGN TO MEET STANDARD SPECIFICATIONS FOR PUBLIC WORKS CONSTRUCTION 560-C-3250. 2C-2 WATER MAIN SHOCK PAD INSTALLATION 12" MIN. 8"
2" CL.
TYP. 12" MIN. AC PAVEMENT SECTION No. 4 BAR, 6" ON CENTER TOP AND BOTTOM EACH 1:2 SLOPE (TYP.) WAY CONCRETE SLAB SEE NOTE 3 AC PAVEMENT BASE COURSE 12" 12" 6"
MIN. 6" MIN. VARIABLE AC EXP.CIVIL
STATE
OF
CA
LIFORNIA
REGISTERED PROFES
SIONAL ENGINEER VARIABLE BASE MATCH EXIST AB ASPHALT CONCRETE (AC) EXISTING ASPHALT CONCRETE AGGREGATE BASE (AB) EXISTING AGGREGATE BASE SAND BEDDING EXISTING SOIL LEGEND PIPE ZONE * SEE PAVEMENT TRANSITION DETAIL ON SHEET 3 FULL DEPTH AC (THICKNESS OF AC SHALL MATCH ADJACENT AC THICKNESS) NOT TO SCALE 3VAR TYPICAL TRENCH DETAIL IN CALTRANS RIGHT-OF-WAY NOT TO SCALE Tuesday, August 05, 2025 Reg CC MTG, Page *616 7553-006-043 7375-025-028 7373-008-023
17+00 18+00 19+00 20+00 250' 250' 250' 250' 250' 250' 250' 250' 50' 250' 250' WORK AREA100' S
T
S
170' G20-5aP R2-1(25) VEHICLE SPEED FEEDBACK SIGN G20-5aP R2-1(25) VEHICLE SPEED FEEDBACK SIGN 1 C30(CA) 1 C30(CA) 1 FLASHING ARROW SIGN (FAS) W4-2R 1 1 W20-1 1 R9-10 1 1 R9-10 G20-2 1 25' O.C. (TYP.) 5' O.C. (TYP.) C30(CA) 1 PCMS 1 W3-5(25) 1 C20(CA)R 1 1 W20-1 1 R2-12 1 (POSTED SPEED LIMIT 35 MPH) (REDUCED SPEED LIMIT 25 MPH) W20-1 1 G20-2 1 W20-1 1 G20-2 1 1 G20-2
1 W20-1 15' 15' 12' 1 C30(CA) 20' O.C. (TYP.) PACIFIC COAST HWY (ROUTE 1)
NARBONNE
AVE
CYPRESS ST
LUCILLE AVE
LUCILLE
AVE 20' O.C. (TYP.) W20-1 1
1 G20-2
1 W20-1 G20-2 1 CYPRESS
ST EX. C&G EX. SIDEWALK EX. C&G EX. SIDEWALK
CITY OF
LOMITA R/W
CITY OF
LOMITA R/W EX. C&G EX. SIDEWALK EX. C&G EX. SIDEWALK
CITY OF
LOMITA R/W
CITY OF
LOMITA R/W 20' O.C. (TYP.) R9-11 1 CALTRANS R/W CALTRANS R/W CALTRANS R/W 1 M4-4 R3-1 R4-7 1 SEE TRAFFIC LOOP DETAIL ON SHEET 13
5 4 WV WV WV WMWM
TV P GV WV WV S S 728 124.30 ASMH D
TSPEPB PEPB WV S 776 122.85 ASMH WM
TSTS TCB TS WV TS GV TS816 125.28 TSPB WV D WVWVWV S GV S WV WV WV S 328' 2 3 REV. REVISION DESCRIPTION DATE ENGR. CITY DATE R Know what'sbelow. Callbefore you dig. P R O J E C T A N D S H E E T T I T L E DESIGNED BY : PROJECT NO. DRAWN BY : CHECKED BY : SHT OF 13 SHTS SUBMITTED BY DAVID EVANS & ASSOCIATES : MARIE MARSTON, PE PROJECT MANAGER DATE PREPARED BY: TEL. (310) 325-7110 FAX. (310) 325-4024 24300 NARBONNE AVENUE, LOMITA, CA 90717 T
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CAL I F 17542 17th Street, Suite 150 Tustin, California 92780 Phone: 714.665.4500 11 CLOSED AHEAD RIGHTLANE C20(CA)(R) LANE CLOSED C30(CA) END ROAD WORK G20-2 W4-2R ROAD WORK AHEAD W20-1 SPEED LIMIT 2 5R2-1 LANE/SHOULDER CLOSURE CONSTRUCTION WORK ZONE PORTABLE DELINEATOR/CONE/SURFACE TYPE III BARRICADE WITH SIGN WITH FLASHERS TYPE II BARRICADE WITH SIGN WITH REFLECTORS PCMS PORTABLE CHANGEABLE MESSAGE SIGN NOPARKING R28(CA) ANY TIME WORK ZONE G20-5aP FLAGGER TRAFFIC CONTROL LEGEND FRAME SIGN MESSAGE 25ZONE AHEAD WILL BE ENFORCED 1ST FRAME 2ND FRAME PCMS 2 5 W3-5 (25) R9-10 FAS TRAILER-MOUNTED ARROWBOARD PORTABLE FLASHING BEACON PORTABLE RADAR SPEED FEEDBACK SIGN SYSTEM FLASHING ARROW SIGN (FAS) USE OTHER SIDE SIDEWALK CLOSED WORK END ZONE SPEED LIMIT R2-12 YOUR SPEED VEHICLE SPEED FEEDBACK SIGNMATCH LINE STA 16+50 SEE SHEET 12 MATCH LINE STA 20+20 SEE SHEET 12
S SIGNALIZED INTERSECTION
T STOP CONTROLLED INTERSECTION R9-11 SIDEWALK CLOSED AHEAD CROSS HERE TRAFFIC CONTROL PLAN (TCP) GENERAL NOTES 1. ALL TRAFFIC CONTROL WORK AND TRAFFIC CONTROL DEVICES FOR CONSTRUCTION SHALL CONFORM TO THE LATEST EDITION OF: · THE CALIFORNIA MANUAL ON UNIFORM TRAFFIC CONTROL DEVICES FOR STREET AND HIGHWAYS (CAMUTCD) · WORK AREA TRAFFIC CONTROL HANDBOOK (WATCH MANUAL) · CALTRANS STANDARD PLANS AND SPECIFICATIONS · STANDARD SPECIFICATIONS FOR PUBLIC WORKS CONSTRUCTION "GREENBOOK" · ALL OSHA REQUIREMENTS· CALIFORNIA VEHICLE CODE 2. REDUCED SPEED LIMIT SHALL BE 25 MPH ON PACIFIC COAST HIGHWAY AND NARBONNE AVENUE. 3. WHEN CONSTRUCTION IS NOT ACTIVE, REDUCED SPEED LIMIT SIGNS SHALL BE COVERED. 4. NO WORK IS PERMITTED ON HOLIDAYS AND OBSERVED HOLIDAYS UNLESS OTHERWISE APPROVED IN THE TRAFFIC CONTROL PLANS HEREIN AND APPROVED BY AND COORDINATED WITH THE CITY. 5. DURING NON-WORKING HOURS OR WHEN WORK IS NOT SCHEDULED, ALL ROADWAY LANES SHALL BE RETURNED TO THEIR FULL TRAFFIC USE BY PLATING OR BACKFILLING AND PAVING THE OPEN TRENCHES UNLESS OTHERWISE APPROVED BY THE CITY INSPECTOR. AT THE END OF THE WORKDAY, THE CONTRACTOR SHALL REMOVE ALL TRAFFIC CONTROL DEVICES NOT IN USE. 6. PARKING TO REMAIN OPEN ON ONE SIDE OF THE STREET DURING CONSTRUCTION. POST NOTICES 72 HOURS IN ADVANCE. 7. PROVIDE ACCESS TO DRIVEWAYS AT ALL TIMES. DRIVEWAY SHALL BE SIGNED FOR RIGHT TURN ONLY WHEN CONTRACTOR'S WORK RESTRICTS LEFT TURN MOVEMENT. 8. THE CONTRACTOR SHALL HAVE ALL SIGNS, DELINEATORS, BARRICADES, ETC., PROPERLY INSTALLED PRIOR TO COMMENCING CONSTRUCTION. 9. THE CONTRACTOR SHALL BE RESPONSIBLE FOR THE PLACEMENT OF ANY ADDITIONAL TRAFFIC CONTROL DEVICES REQUIRED BY THE CITY TO ASSURE SAFETY OF THE PUBLIC AT ALL TIMES DURING CONSTRUCTION. 10. THE CONTRACTOR SHALL RESTORE ALL PROPERTY DAMAGED OR REMOVED DURING CONSTRUCTION TO THE SATISFACTION OF THE CITY INSPECTOR. 11. PROTECTIVE VEHICLE RECOMMENDED - MAY BE A WORK VEHICLE STRATEGICALLY LOCATED TO SHIELD THE WORK AREA. 12. COORDINATE WITH CITY OF LOMITA AND / OR CALTRANS AS APPROPRIATE IF SIDEWALKS WILL BE CLOSED DURING CONSTRUCTION. CONTRACTOR WILL BE REQUIRED TO PROVIDE PEDESTRIAN DETOURS. 13. PROVIDE SCHEDULE FOR LANE CLOSURE TO CITY FOR APPROVAL PRIOR TO CLOSING LANE. 14. FLASHING ARROW BOARDS SHALL BE USED FOR EACH TRAFFIC LANE CLOSURE. 15. THE CONTRACTOR SHALL NOTIFY HOMEOWNERS ASSOCIATIONS, BUSINESSES, AND RESIDENTS WITHIN 100 FEET OF THE PROJECT LIMITS, AND THE CITY OF LOMITA THREE (3) DAYS PRIOR TO IMPLEMENTING ANY CONSTRUCTION WORK INVOLVING APPROVED NON-WORKING HOURS, WEEKEND WORK, LANE/ROAD CLOSURES, AND/OR DETOURS. NOTIFICATIONS FOR OTHER TYPES OF WORK MAY ALSO BE REQUIRED AS DETERMINED BY THE CITY. 16. ANY DEVIATIONS FROM APPROVED TRAFFIC CONTROL PLAN SHALL REQUIRE APPROVAL FROM THE CITY OF LOMITA AND / OR CALTRANS AS APPROPRIATE PRIOR TO IMPLEMENTATION. 17. TRAFFIC SIGNALS SHALL REMAIN IN OPERATION AT ALL TIMES. CONFLICTING TRAFFIC SIGNAL INDICATIONS SHALL BE COVERED AND SIGNAL OPERATION DURING EACH CONSTRUCTION PHASE SHALL BE COORDINATED WITH AND APPROVED BY THE CITY. 18. ADJUST SIGN SPACING AS NECESSARY TO ALLOW FOR VISIBILITY FROM SIDE STREETS AND DRIVEWAYS. 19. CONTRACTOR TO EMAIL LA METRO AT [email protected] A MINIMUM OF FIVE (5) BUISINESS DAYS BEFORE WORKING ALONG BUS ROUTES. PROVIDE FOR TEMPORARY BUS STOP RELOCATIONS AS NECESSARY TO MAINTAIN BUS SERVICE. 20. PLACE FLASHING BEACON ON TOP OF W20-1 SIGN FOR WORKING AT NIGHT, PARTICULARLY ON STANDARD LANE CLOSURE SET UP WITHIN CALTRANS RIGHT OF WAY. 21. CALTRANS TRAFFIC SIGNAL ASSETS, INCLUDING LOOP DETECTORS, CONDUCTOR SIGNAL CABLES, INTERCONNECT CABLES, FIBER OPTIC CABLES, POWER, AND ASSOCIATED EQUIPMENT, ARE SITUATED IN BOTH SURFACE AND SUBTERRANEAN AREAS ALONG PACIFIC COAST HIGHWAY AT THE INTERSECTION WITH NARBONNE AVENUE. SHOULD DAMAGE OCCUR, REPAIRS WILL BE SUBJECT TO THE PERMITS SPECIAL PROVISIONS, CALTRANS 2023 STANDARD PLANS AND SPECIFICATIONS, AND APPLICABLE REQUIREMENTS. 22. THE TESTING OF NEW LOOPS SHALL ADHERE TO THE CALTRANS 2023 STANDARD SPECIFICATIONS, SECTION 87-1.03V(2), WHICH INCLUDES THE METAL LOOP TEST. NOTES: 1. CLOSURE HOURS ARE MON-FRI 9:00 AM - 3:00 PM. TRAVEL INTERRUPTIONS IN PACIFIC COAST HIGHWAY ARE PROHIBITED FROM 5:00 AM TO 9:00 AM. NIGHT WORK IS REQUIRED FOR THE PORTION OF NARBONNE AVENUE THAT INTERSECTS THE PACIFIC COAST HIGHWAY OR IMPEDES TRAVEL OF THE PACIFIC COAST HIGHWAY AND IS ONLY ALLOWED SUNDAY THROUGH THURSDAY NIGHTS. LANE SHIFT SHALL BE CONSIDERED A TRAFFIC INTERRUPTION. 2. TRAFFIC CONTROL PLANS SHOWN ARE PRELIMINARY. TRAFFIC CONTROL PLANS SHALL BE PREPARED BY CONTRACTOR AND SUBMITTED TO CITY OF LOMITA FOR REVIEW AND APPROVAL AT LEAST TWO WEEKS IN ADVANCE OF CONSTRUCTION. TRAFFIC CONTROL PLANS FOR WORK AT THE PACIFIC COAST HIGHWAY / NARBONNE AVENUE INTERSECTION SHALL BE PREPARED SEPARATELY FROM THE TRAFFIC CONTROL PLANS FOR WORK IN NARBONNE AVENUE. CLOSURE HOURS: MON-FRI 9:00 AM TO 3:00 PM R4-7 SIGN LEGEND CONSTRUCTION NOTES 1 INSTALL BARRICADE/SIGN AS SHOWN REMOVE/REPLACE WITH TYPE F LOOP DETECTOR PER CALTRANS STD PLAN ES-5B (SEE SHEET 13) 23 REPLACE TYPE E LOOP DETECTOR PER CALTRANS STD PLAN ES-5B (SEE SHEET 13) 4 REMOVE EXISTING R10-12 SIGN ON MAST ARM, INSTALL R3-6 SIGN ON MAST ARM, REINSTALL R10-12 SIGN AFTER CONSTRUCTION (SEE SHEET 13) 5 REMOVE EXISTING R10-12 SIGN ON MAST ARM, INSTALL R61-5(CA) SIGN ON MAST ARM, REINSTALL R10-12 SIGN AFTER CONSTRUCTION (SEE SHEET 13) NOTE TO CONTRACTOR: COORDINATE TRAFFIC SIGNAL WITH CALTRANS FOR NARBONNE AVE NORTH-SOUTH SPLIT PHASING (SEE SHEET 13) TRUCK M4-4 R3-1 ONLY R61-5 (CA) YIELD LEFT TURN ON GREEN R10-12 R3-6 YIELD LEFT TURN ON GREEN R10-12 LPLPMM Tuesday, August 05, 2025 Reg CC MTG, Page *617
PVT DRWY
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7553-003-030
7553-003-037
7553-003-(44 - 88)
7553-002-013
7553-002-(102 - 125)
7553-002-019
7553-002-021
7553-002-131
7553-002-131
7553-003-(90 - 113)
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7553-006-042
7553-006-189
7553-006-039
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7553-006-041
7553-006-041
7553-006-017
7553-006-163
7553-006-039
7553-005-003
7553-005-002
7553-005-031
7553-006-(112 - 157) 7+00 8+00 9+00 10+00 11+00 12+00 13+00 14+00 15+00 16+00 50' 250' 250' 328' 50' 50' 50' 50' 160' G20-5aP W4-2R R2-1(25) VEHICLE SPEED FEEDBACK SIGN (POSTED SPEED LIMIT 35 MPH) (REDUCED SPEED LIMIT 25 MPH) 20' O.C. (TYP.) FLASHING ARROW SIGN (FAS) W20-1 1 PCMS 1 W3-5(25) 1 C20(CA)R 1 1 1 R28(CA) 1 1 1 C30(CA) 1 C30(CA) G20-2 1 EX. C&G EX. SIDEWALK EX. C&G EX. SIDEWALK R2-12 1 NARBONNE AVE CITY OF LOMITA R/W CITY OF LOMITA R/W CITY OF LOMITA R/W CITY OF LOMITA R/W
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256TH STREETNARBONNE AVE C20(CA)L 1 W20-1 1 G20-2 1 20' O.C. (TYP.) 1 W3-5(25) 1 C20(CA)L 1 PCMS 1 W20-1 1 1 C30(CA) EX. C&G EX. SIDEWALK EX. C&G EX. SIDEWALK R2-12 (POSTED SPEED LIMIT 35 MPH) (REDUCED SPEED LIMIT 25 MPH) G20-2 G20-5aP R2-1(25) VEHICLE SPEED FEEDBACK SIGN CITY OF LOMITA R/W CITY OF LOMITA R/W 1 170' REV. REVISION DESCRIPTION DATE ENGR. CITY DATE
R Know what'sbelow. Callbefore you dig. P R O J E C T A N D S H E E T T I T L E DESIGNED BY : PROJECT NO. DRAWN BY : CHECKED BY : SHT OF 13 SHTS SUBMITTED BY DAVID EVANS & ASSOCIATES : MARIE MARSTON, PE PROJECT MANAGER DATE PREPARED BY: TEL. (310) 325-7110 FAX. (310) 325-4024 24300 NARBONNE AVENUE, LOMITA, CA 90717 T
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CAL I F 17542 17th Street, Suite 150 Tustin, California 92780 Phone: 714.665.4500 MATCH LINE STA 16+50
SEE SHEET 11 12 CLOSED AHEAD RIGHTLANE C20(CA)(R) LANE CLOSED C30(CA) END ROAD WORK G20-2 W4-2R ROAD WORK AHEAD W20-1 SPEED LIMIT 2 5R2-1 LANE/SHOULDER CLOSURE CONSTRUCTION WORK ZONE PORTABLE DELINEATOR/CONE/SURFACE TYPE III BARRICADE WITH SIGN WITH FLASHERS TYPE II BARRICADE WITH SIGN WITH REFLECTORS PCMS PORTABLE CHANGEABLE MESSAGE SIGN NOPARKING R28(CA) ANY TIME WORK ZONE G20-5aP FLAGGER TRAFFIC CONTROL LEGEND FRAME SIGN MESSAGE 25ZONE AHEAD WILL BE ENFORCED 1ST FRAME 2ND FRAME PCMS 2 5 W3-5 (25) NOTES: 1. TRAVEL INTERRUPTIONS IN PACIFIC COAST HIGHWAY ARE PROHIBITED FROM 5:00 AM TO 9:00 PM. NIGHT WORK IS REQUIRED FOR THE PORTION OF NARBONNE AVENUE THAT INTERSECTS THE PACIFIC COAST HIGHWAY OR IMPEDES TRAVEL OF THE PACIFIC COAST HIGHWAY AND IS ONLY ALLOWED SUNDAY THROUGH THURSDAY NIGHTS. LANE SHIFT SHALL BE CONSIDERED A TRAFFIC INTERRUPTION. 2. TRAFFIC CONTROL PLANS SHOWN ARE PRELIMINARY. TRAFFIC CONTROL PLANS SHALL BE PREPARED BY CONTRACTOR AND SUBMITTED TO CITY OF LOMITA FOR REVIEW AND APPROVAL AT LEAST TWO WEEKS IN ADVANCE OF CONSTRUCTION. TRAFFIC CONTROL PLANS FOR WORK AT THE PACIFIC COAST HIGHWAY / NARBONNE AVENUE INTERSECTION SHALL BE PREPARED SEPARATELY FROM THE TRAFFIC CONTROL PLANS FOR WORK IN NARBONNE AVENUE. R9-10 FAS SUPPORT OT TRAILER PORTABLE FLASHING BEACON PORTABLE RADAR SPEED FEEDBACK SIGN SYSTEM FLASHING ARROW SIGN (FAS) ONLY R3-5(L) USE OTHER SIDE SIDEWALK CLOSED WORK END ZONE SPEED LIMIT R2-12 YOUR SPEED VEHICLE SPEED FEEDBACK SIGN SIGNALIZED INTERSECTION
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MATCH LINE STA 20+20
SEE SHEET 11 CONSTRUCTION NOTES INSTALL BARRICADE/SIGN/DEVICE AS SHOWN 1 R9-11 SIDEWALK CLOSED AHEAD CROSS HERE TRAFFIC CONTROL PLAN (TCP) GENERAL NOTES 1. ALL TRAFFIC CONTROL WORK AND TRAFFIC CONTROL DEVICES FOR CONSTRUCTION SHALL CONFORM TO THE LATEST EDITION OF: · THE CALIFORNIA MANUAL ON UNIFORM TRAFFIC CONTROL DEVICES FOR STREET AND HIGHWAYS (CAMUTCD) · WORK AREA TRAFFIC CONTROL HANDBOOK (WATCH MANUAL) · CALTRANS STANDARD PLANS AND SPECIFICATIONS · STANDARD SPECIFICATIONS FOR PUBLIC WORKS CONSTRUCTION "GREENBOOK" · ALL OSHA REQUIREMENTS· CALIFORNIA VEHICLE CODE 2. REDUCED SPEED LIMIT SHALL BE 25 MPH ON PACIFIC COAST HIGHWAY AND NARBONNE AVENUE. 3. WHEN CONSTRUCTION IS NOT ACTIVE, REDUCED SPEED LIMIT SIGNS SHALL BE COVERED. 4. NO WORK IS PERMITTED ON HOLIDAYS AND OBSERVED HOLIDAYS UNLESS OTHERWISE APPROVED IN THE TRAFFIC CONTROL PLANS HEREIN AND APPROVED BY AND COORDINATED WITH THE CITY. 5. DURING NON-WORKING HOURS OR WHEN WORK IS NOT SCHEDULED, ALL ROADWAY LANES SHALL BE RETURNED TO THEIR FULL TRAFFIC USE BY PLATING OR BACKFILLING AND PAVING THE OPEN TRENCHES UNLESS OTHERWISE APPROVED BY THE CITY INSPECTOR. AT THE END OF THE WORKDAY, THE CONTRACTOR SHALL REMOVE ALL TRAFFIC CONTROL DEVICES NOT IN USE. 6. PARKING TO REMAIN OPEN ON ONE SIDE OF THE STREET DURING CONSTRUCTION. POST NOTICES 72 HOURS IN ADVANCE. 7. PROVIDE ACCESS TO DRIVEWAYS AT ALL TIMES. DRIVEWAY SHALL BE SIGNED FOR RIGHT TURN ONLY WHEN CONTRACTOR'S WORK RESTRICTS LEFT TURN MOVEMENT. 8. THE CONTRACTOR SHALL HAVE ALL SIGNS, DELINEATORS, BARRICADES, ETC., PROPERLY INSTALLED PRIOR TO COMMENCING CONSTRUCTION. 9. THE CONTRACTOR SHALL BE RESPONSIBLE FOR THE PLACEMENT OF ANY ADDITIONAL TRAFFIC CONTROL DEVICES REQUIRED BY THE CITY TO ASSURE SAFETY OF THE PUBLIC AT ALL TIMES DURING CONSTRUCTION. 10. THE CONTRACTOR SHALL RESTORE ALL PROPERTY DAMAGED OR REMOVED DURING CONSTRUCTION TO THE SATISFACTION OF THE CITY INSPECTOR. 11. PROTECTIVE VEHICLE RECOMMENDED - MAY BE A WORK VEHICLE STRATEGICALLY LOCATED TO SHIELD THE WORK AREA. 12. COORDINATE WITH CITY OF LOMITA AND / OR CALTRANS AS APPROPRIATE IF SIDEWALKS WILL BE CLOSED DURING CONSTRUCTION. CONTRACTOR WILL BE REQUIRED TO PROVIDE PEDESTRIAN DETOURS. 13. PROVIDE SCHEDULE FOR LANE CLOSURE TO CITY FOR APPROVAL PRIOR TO CLOSING LANE. 14. FLASHING ARROW BOARDS SHALL BE USED FOR EACH TRAFFIC LANE CLOSURE. 15. THE CONTRACTOR SHALL NOTIFY HOMEOWNERS ASSOCIATIONS, BUSINESSES, AND RESIDENTS WITHIN 100 FEET OF THE PROJECT LIMITS, AND THE CITY OF LOMITA THREE (3) DAYS PRIOR TO IMPLEMENTING ANY CONSTRUCTION WORK INVOLVING APPROVED NON-WORKING HOURS, WEEKEND WORK, LANE/ROAD CLOSURES, AND/OR DETOURS. NOTIFICATIONS FOR OTHER TYPES OF WORK MAY ALSO BE REQUIRED AS DETERMINED BY THE CITY. 16. ANY DEVIATIONS FROM APPROVED TRAFFIC CONTROL PLAN SHALL REQUIRE APPROVAL FROM THE CITY OF LOMITA AND / OR CALTRANS AS APPROPRIATE PRIOR TO IMPLEMENTATION. 17. TRAFFIC SIGNALS SHALL REMAIN IN OPERATION AT ALL TIMES. CONFLICTING TRAFFIC SIGNAL INDICATIONS SHALL BE COVERED AND SIGNAL OPERATION DURING EACH CONSTRUCTION PHASE SHALL BE COORDINATED WITH AND APPROVED BY THE CITY. 18. ADJUST SIGN SPACING AS NECESSARY TO ALLOW FOR VISIBILITY FROM SIDE STREETS AND DRIVEWAYS. 19. CONTRACTOR TO EMAIL LA METRO AT [email protected] A MINIMUM OF FIVE (5) BUISINESS DAYS BEFORE WORKING ALONG BUS ROUTES. PROVIDE FOR TEMPORARY BUS STOP RELOCATIONS AS NECESSARY TO MAINTAIN BUS SERVICE. 20. PLACE FLASHING BEACON ON TOP OF W20-1 SIGN FOR WORKING AT NIGHT, PARTICULARLY ON STANDARD LANE CLOSURE SET UP WITHIN CALTRANS RIGHT OF WAY. 21. CALTRANS TRAFFIC SIGNAL ASSETS, INCLUDING LOOP DETECTORS, CONDUCTOR SIGNAL CABLES, INTERCONNECT CABLES, FIBER OPTIC CABLES, POWER, AND ASSOCIATED EQUIPMENT, ARE SITUATED IN BOTH SURFACE AND SUBTERRANEAN AREAS ALONG PACIFIC COAST HIGHWAY AT THE INTERSECTION WITH NARBONNE AVENUE. SHOULD DAMAGE OCCUR, REPAIRS WILL BE SUBJECT TO THE PERMITS SPECIAL PROVISIONS, CALTRANS 2023 STANDARD PLANS AND SPECIFICATIONS, AND APPLICABLE REQUIREMENTS. 22. THE TESTING OF NEW LOOPS SHALL ADHERE TO THE CALTRANS 2023 STANDARD SPECIFICATIONS, SECTION 87-1.03V(2), WHICH INCLUDES THE METAL LOOP TEST. CLOSURE HOURS: MON-FRI 9:00 AM TO 3:00 PM TRUCK M4-4 R3-1 SIGN LEGEND LPLPMM Tuesday, August 05, 2025 Reg CC MTG, Page *618
GV WV WV S
PEPB WV
TS GV
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NARBONNE AVE EX. C&GEX. SIDEWALK EX. C&G EX. SIDEWALK EX. C&G EX. SIDEWALK
CITY OF
LOMITA R/W
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LOMITA R/W CALTRANS R/W CALTRANS R/W CALTRANS R/W SEE TRAFFIC LOOP DETAIL HERON 5 4
TV
P GV WV WV S
S 728 124.30 ASMH D
TS
PEPB
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TSTS TCB
TS WV
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TS816 125.28 TSPB WV
D WVWVWV
S GV
S WV WV WV
S Ø7 & Ø4** Ø4** Ø4PØ2P Ø1 Ø1Ø6Ø6 Ø6P Ø3 & Ø4P Ø8** Ø3 & Ø8** Ø8** Ø8P Ø6P Ø5 Ø5 Ø2 Ø2 Ø2P Ø8P Ø7 & Ø4** CLOSURE HOURS: MON-FRI 9:00 AM TO 3:00 PM PROPOSED TRAFFIC LOOP DETAIL (NO SCALE) 2 3 LOOPS 6 LOOPS (3 FRONT & 3 ADVANCED LEFT-TURN LOOPS) 3 SC
00 0
0 0
0 0
1 2
3 0
4 5
6 7
8 EXISTING PHASE DIAGRAM
0 0
0 0
1 2
4 5 TEMPORARY PHASE SEQUENCE
1 INSTALL BARRICADE/SIGN AS SHOWN2 REMOVE/REPLACE WITH TYPE F LOOP DETECTOR PER CALTRANS STD PLAN ES-5B3SC SPLICE NEW TO EXISTING CONDUCTORS REPLACE TYPE E LOOP DETECTOR PER CALTRANS STD PLAN ES-5B TRAFFIC SIGNAL NOTES 1. CONTRACTOR TO REWIRE PER SPLIT PHASING. RESTORE EXISTING PHASE SEQUENCE UPON COMPLETION OF WORK. 2. SEE CONSTRUCTION NOTES 4 AND 5 4 REMOVE EXISTING R10-12 SIGN ON MAST ARM, INSTALL R3-6 SIGN ON MAST ARM, REINSTALL R10-12 SIGN AFTER CONSTRUCTION 5 REMOVE EXISTING R10-12 SIGN ON MAST ARM, INSTALL R61-5(CA) SIGN ON MAST ARM, REINSTALL R10-12 SIGN AFTER CONSTRUCTION P
0 2
0 5
01 0
6 0
6 P OR
0 2
P
0 2
0 6
0 6
P
0 7
+
0 4
P
0 8
+
0 3
0 8
P ONLY R61-5 (CA) YIELD LEFT TURN ON GREEN R10-12 R3-6 YIELD LEFT TURN ON GREEN R10-12 NOTE TO CONTRACTOR: COORDINATE TRAFFIC SIGNAL WITH CALTRANS FOR NARBONNE AVE NORTH-SOUTH SPLIT PHASING REV. REVISION DESCRIPTION DATE ENGR. CITY DATE R Know what'sbelow. Callbefore you dig. P R O J E C T A N D S H E E T T I T L E DESIGNED BY : PROJECT NO. DRAWN BY : CHECKED BY : SHT OF 13 SHTS SUBMITTED BY DAVID EVANS & ASSOCIATES : MARIE MARSTON, PE PROJECT MANAGER DATE PREPARED BY: TEL. (310) 325-7110 FAX. (310) 325-4024 24300 NARBONNE AVENUE, LOMITA, CA 90717 T
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CAL I F 17542 17th Street, Suite 150 Tustin, California 92780 Phone: 714.665.4500 13 NOTES: 1. CLOSURE HOURS ARE MON-FRI 9:00 AM - 3:00 PM. TRAVEL INTERRUPTIONS IN PACIFIC COAST HIGHWAY ARE PROHIBITED ON FROM 5:00 AM TO 9:00 AM. NIGHT WORK IS REQUIRED FOR THE PORTION OF NARBONNE AVENUE THAT INTERSECTS THE PACIFIC COAST HIGHWAY OR IMPEDES TRAVEL OF THE PACIFIC COAST HIGHWAY AND IS ONLY ALLOWED SUNDAY THROUGH THURSDAY NIGHTS. LANE SHIFT SHALL BE CONSIDERED A TRAFFIC INTERRUPTION. 2. TRAFFIC CONTROL PLANS SHOWN ARE PRELIMINARY. TRAFFIC CONTROL PLANS SHALL BE PREPARED BY CONTRACTOR AND SUBMITTED TO CITY OF LOMITA FOR REVIEW AND APPROVAL AT LEAST TWO WEEKS IN ADVANCE OF CONSTRUCTION. TRAFFIC CONTROL PLANS FOR WORK AT THE PACIFIC COAST HIGHWAY / NARBONNE AVENUE INTERSECTION SHALL BE PREPARED SEPARATELY FROM THE TRAFFIC CONTROL PLANS FOR WORK IN NARBONNE AVENUE. TRAFFIC CONTROL PLAN (TCP) GENERAL NOTES CONSTRUCTION NOTES: 1. ALL TRAFFIC CONTROL WORK AND TRAFFIC CONTROL DEVICES FOR CONSTRUCTION SHALL CONFORM TO THE LATEST EDITION OF: · THE CALIFORNIA MANUAL ON UNIFORM TRAFFIC CONTROL DEVICES FOR STREET AND HIGHWAYS (CAMUTCD) · WORK AREA TRAFFIC CONTROL HANDBOOK (WATCH MANUAL) · CALTRANS STANDARD PLANS AND SPECIFICATIONS · STANDARD SPECIFICATIONS FOR PUBLIC WORKS CONSTRUCTION "GREENBOOK" · ALL OSHA REQUIREMENTS· CALIFORNIA VEHICLE CODE 2. REDUCED SPEED LIMIT SHALL BE 25 MPH ON PACIFIC COAST HIGHWAY AND NARBONNE AVENUE. 3. WHEN CONSTRUCTION IS NOT ACTIVE, REDUCED SPEED LIMIT SIGNS SHALL BE COVERED. 4. NO WORK IS PERMITTED ON HOLIDAYS AND OBSERVED HOLIDAYS UNLESS OTHERWISE APPROVED IN THE TRAFFIC CONTROL PLANS HEREIN AND APPROVED BY AND COORDINATED WITH THE CITY. 5. DURING NON-WORKING HOURS OR WHEN WORK IS NOT SCHEDULED, ALL ROADWAY LANES SHALL BE RETURNED TO THEIR FULL TRAFFIC USE BY PLATING OR BACKFILLING AND PAVING THE OPEN TRENCHES UNLESS OTHERWISE APPROVED BY THE CITY INSPECTOR. AT THE END OF THE WORKDAY, THE CONTRACTOR SHALL REMOVE ALL TRAFFIC CONTROL DEVICES NOT IN USE. 6. PARKING TO REMAIN OPEN ON ONE SIDE OF THE STREET DURING CONSTRUCTION. POST NOTICES 72 HOURS IN ADVANCE. 7. PROVIDE ACCESS TO DRIVEWAYS AT ALL TIMES. DRIVEWAY SHALL BE SIGNED FOR RIGHT TURN ONLY WHEN CONTRACTOR'S WORK RESTRICTS LEFT TURN MOVEMENT. 8. THE CONTRACTOR SHALL HAVE ALL SIGNS, DELINEATORS, BARRICADES, ETC., PROPERLY INSTALLED PRIOR TO COMMENCING CONSTRUCTION. 9. THE CONTRACTOR SHALL BE RESPONSIBLE FOR THE PLACEMENT OF ANY ADDITIONAL TRAFFIC CONTROL DEVICES REQUIRED BY THE CITY TO ASSURE SAFETY OF THE PUBLIC AT ALL TIMES DURING CONSTRUCTION. 10. THE CONTRACTOR SHALL RESTORE ALL PROPERTY DAMAGED OR REMOVED DURING CONSTRUCTION TO THE SATISFACTION OF THE CITY INSPECTOR. 11. PROTECTIVE VEHICLE RECOMMENDED - MAY BE A WORK VEHICLE STRATEGICALLY LOCATED TO SHIELD THE WORK AREA. 12. COORDINATE WITH CITY OF LOMITA AND / OR CALTRANS AS APPROPRIATE IF SIDEWALKS WILL BE CLOSED DURING CONSTRUCTION. CONTRACTOR WILL BE REQUIRED TO PROVIDE PEDESTRIAN DETOURS. 13. PROVIDE SCHEDULE FOR LANE CLOSURE TO CITY FOR APPROVAL PRIOR TO CLOSING LANE. 14. FLASHING ARROW BOARDS SHALL BE USED FOR EACH TRAFFIC LANE CLOSURE. 15. THE CONTRACTOR SHALL NOTIFY HOMEOWNERS ASSOCIATIONS, BUSINESSES, AND RESIDENTS WITHIN 100 FEET OF THE PROJECT LIMITS, AND THE CITY OF LOMITA THREE (3) DAYS PRIOR TO IMPLEMENTING ANY CONSTRUCTION WORK INVOLVING APPROVED NON-WORKING HOURS, WEEKEND WORK, LANE/ROAD CLOSURES, AND/OR DETOURS. NOTIFICATIONS FOR OTHER TYPES OF WORK MAY ALSO BE REQUIRED AS DETERMINED BY THE CITY. 16. ANY DEVIATIONS FROM APPROVED TRAFFIC CONTROL PLAN SHALL REQUIRE APPROVAL FROM THE CITY OF LOMITA AND / OR CALTRANS AS APPROPRIATE PRIOR TO IMPLEMENTATION. 17. TRAFFIC SIGNALS SHALL REMAIN IN OPERATION AT ALL TIMES. CONFLICTING TRAFFIC SIGNAL INDICATIONS SHALL BE COVERED AND SIGNAL OPERATION DURING EACH CONSTRUCTION PHASE SHALL BE COORDINATED WITH AND APPROVED BY THE CITY. 18. ADJUST SIGN SPACING AS NECESSARY TO ALLOW FOR VISIBILITY FROM SIDE STREETS AND DRIVEWAYS. 19. CONTRACTOR TO EMAIL LA METRO AT [email protected] A MINIMUM OF FIVE (5) BUISINESS DAYS BEFORE WORKING ALONG BUS ROUTES. PROVIDE FOR TEMPORARY BUS STOP RELOCATIONS AS NECESSARY TO MAINTAIN BUS SERVICE. 20. PLACE FLASHING BEACON ON TOP OF W20-1 SIGN FOR WORKING AT NIGHT, PARTICULARLY ON STANDARD LANE CLOSURE SET UP WITHIN CALTRANS RIGHT OF WAY. 21. CALTRANS TRAFFIC SIGNAL ASSETS, INCLUDING LOOP DETECTORS, CONDUCTOR SIGNAL CABLES, INTERCONNECT CABLES, FIBER OPTIC CABLES, POWER, AND ASSOCIATED EQUIPMENT, ARE SITUATED IN BOTH SURFACE AND SUBTERRANEAN AREAS ALONG PACIFIC COAST HIGHWAY AT THE INTERSECTION WITH NARBONNE AVENUE. SHOULD DAMAGE OCCUR, REPAIRS WILL BE SUBJECT TO THE PERMITS SPECIAL PROVISIONS, CALTRANS 2023 STANDARD PLANS AND SPECIFICATIONS, AND APPLICABLE REQUIREMENTS. 22. THE TESTING OF NEW LOOPS SHALL ADHERE TO THE CALTRANS 2023 STANDARD SPECIFICATIONS, SECTION 87-1.03V(2), WHICH INCLUDES THE METAL LOOP TEST. ** ** RKSMMM Tuesday, August 05, 2025 Reg CC MTG, Page *619 Attachment B
Tuesday, August 05, 2025 Reg CC MTG, Page *620
CONTRACT FOR PROFESSIONAL SERVICES
BETWEEN
THE CITY OF LOMITA AND NAME