METHOD OF MEASUREMENT
603-4.1 The emulsified asphalt material for tack coat shall be measured by the gallon (liter). Volume shall be corrected to the volume at 60°F (16°C) in accordance with ASTM D1250. The emulsified asphalt material paid for will be the measured quantities used in the accepted work, provided that the measured quantities are not 10% over the specified application rate. Any amount of emulsified asphalt material more than 10% over the specified application rate for each application will be deducted from the measured quantities, except for irregular areas where hand spraying of the emulsified asphalt material is necessary. Water added to emulsified asphalt will not be measured for payment.
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Item P-603 Emulsified Asphalt Tack Coat 402
BASIS OF PAYMENT
603.5-1 Payment shall be made at the contract unit price per gallon (liter)of emulsified asphalt material.
This price shall be full compensation for furnishing all materials, for all preparation, delivery, and application of these materials, and for all labor, equipment, tools, and incidentals necessary to complete the item.
Payment will be made under:
Item P-603-5.1 Emulsified Asphalt Tack Coat - per gallon (liter)
REFERENCES
The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.
ASTM International (ASTM)
ASTM D1250 Standard Guide for Use of the Petroleum Measurement Tables ASTM D2995 Standard Practice for Estimating Application Rate and Residual Application Rate of Bituminous Distributors
ASTM D3628 Standard Practice for Selection and Use of Emulsified Asphalts END ITEM P-603
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Item P-603 Emulsified Asphalt Tack Coat 403
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Item P-604 Compression Joint Seals for Concrete Pavements 404 Item P-604 Compression Joint Seals for Concrete Pavements
NOT USED
END ITEM P-604
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Item P-604 Compression Joint Seals for Concrete Pavements 405 Page Intentionally Blank
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Item P-605 Joint Sealants for Pavements 406
Item P-605 Joint Sealants for Pavements
NOT USED
END ITEM P-605
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Item P-605 Joint Sealants for Pavements 407
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Item P-606 Adhesive Compounds, Two-Component for Sealing Wire and Lights in Pavement 408 Item P-606 Adhesive Compounds, Two-Component for Sealing Wire and Lights in Pavement
NOT USED
END OF ITEM P-606
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Item P-606 Adhesive Compounds, Two-Component for Sealing Wire and Lights in Pavement 409 Page Intentionally Blank
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Item P-610 Concrete for Miscellaneous Structures 410
Item P-610 Concrete for Miscellaneous Structures
DESCRIPTION
610-1.1 This item shall consist of concrete and reinforcement, as shown on the plans, prepared and constructed in accordance with these specifications. This specification shall be used for all concrete other than airfield pavement which are cast-in-place.
MATERIALS
610-2.1 General. Only approved materials, conforming to the requirements of these specifications, shall be used in the work. Materials may be subject to inspection and tests at any time during their preparation or use. The source of all materials shall be approved by the Resident Project Representative (RPR) before delivery or use in the work. Representative preliminary samples of the materials shall be submitted by the Contractor, when required, for examination and test. Materials shall be stored and handled to ensure preservation of their quality and fitness for use and shall be located to facilitate prompt inspection. All equipment for handling and transporting materials and concrete must be clean before any material or concrete is placed in them.
The use of pit-run aggregates shall not be permitted unless the pit-run aggregate has been screened and washed, and all fine and coarse aggregates stored separately and kept clean. The mixing of different aggregates from different sources in one storage stockpile or alternating batches of different aggregates shall not be permitted.
a. Reactivity. Fine aggregate and coarse aggregates to be used in all concrete shall have been tested separately within six months of the project in accordance with ASTM C1260. Test results shall be submitted to the RPR. The aggregate shall be considered innocuous if the expansion of test specimens, tested in accordance with ASTM C1260, does not exceed 0.08% at 14 days (16 days from casting). If the expansion either or both test specimen is greater than 0.08% at 14 days, but less than 0.20%, a minimum of 25% of Type F fly ash, or between 40% and 55% of slag cement shall be used in the concrete mix.
If the expansion is greater than 0.20%, the aggregates shall not be used, and test results for other aggregates must be submitted for evaluation; or aggregates that meet P-501 reactivity test requirements may be utilized.
610-2.2 Coarse aggregate. The coarse aggregate for concrete shall meet the requirements of ASTM C33 and the requirements of Table 4, Class Designation 5S; and the grading requirements shown below, as required for the project.
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Item P-610 Concrete for Miscellaneous Structures 411
Coarse Aggregate Grading Requirements
Maximum Aggregate Size ASTM C33, Table 3 Grading
Requirements (Size No.)
1 1/2 inch (37.5 mm) 467 or
4 and 67
1 inch (25 mm) 57
¾ inch (19 mm) 67
½ inch (12.5 mm) 7
610-2.2.1 Coarse Aggregate susceptibility to durability (D) cracking. Not used. 610-2.3 Fine aggregate. The fine aggregate for concrete shall meet all fine aggregate requirements of ASTM C33.
610-2.4 Cement. Cement shall conform to the requirements of ASTM C150 Type II. 610-2.5 Cementitious materials.
a. Fly ash. Fly ash shall meet the requirements of ASTM C618, with the exception of loss of ignition, where the maximum shall be less than 6%. Fly ash shall have a Calcium Oxide (CaO) content of less than 15% and a total available alkali content less than 3% per ASTM C311. Fly ash produced in furnace operations using liming materials or soda ash (sodium carbonate) as an additive shall not be acceptable.
The Contractor shall furnish the previous three most recent, consecutive ASTM C618 reports for each source of fly ash proposed in the concrete mix, and shall furnish each additional report as they become available during the project. The reports can be used for acceptance or the material may be tested independently by the RPR.
b. Slag cement (ground granulated blast furnace (GGBF)). Slag cement shall conform to ASTM C989, Grade 100 or Grade 120. Slag cement shall be used only at a rate between 25% and 55% of the total cementitious material by mass.
610-2.6 Water. Water used in mixing or curing shall be from potable water sources. Other sources shall be tested in accordance with ASTM C1602 prior to use.
610-2.7 Admixtures. The Contractor shall submit certificates indicating that the material to be furnished meets all of the requirements indicated below. In addition, the RPR may require the Contractor to submit complete test data from an approved laboratory showing that the material to be furnished meets all of the requirements of the cited specifications. Subsequent tests may be made of samples taken by the RPR from the supply of the material being furnished or proposed for use on the work to determine whether the admixture is uniform in quality with that approved.
a. Air-entraining admixtures. Air-entraining admixtures shall meet the requirements of ASTM C260 and shall consistently entrain the air content in the specified ranges under field conditions. The air- entrainment agent and any water reducer admixture shall be compatible. b. Water-reducing admixtures. Water-reducing admixture shall meet the requirements of ASTM C494, Type A, B, or D. ASTM C494, Type F and G high range water reducing admixtures and ASTM C1017 flowable admixtures shall not be used.
c. Other chemical admixtures. The use of set retarding, and set-accelerating admixtures shall be approved by the RPR. Retarding shall meet the requirements of ASTM C494, Type A, B, or D and set- A.10.e
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Item P-610 Concrete for Miscellaneous Structures 412
accelerating shall meet the requirements of ASTM C494, Type C. Calcium chloride and admixtures containing calcium chloride shall not be used.
610-2.8 Premolded joint material. Premolded joint material for expansion joints shall meet the requirements of ASTM D1751.
610-2.9 Joint filler. The filler for joints shall meet the requirements of Item P-605, unless otherwise specified.
610-2.10 Steel reinforcement. Reinforcing shall consist of Reinforcing Steel conforming to the requirements of ASTM A615.
610-2.11 Materials for curing concrete. Curing materials shall conform to one or more of the following:
Materials for Curing
Waterproof paper ASTM C171
Clear or white Polyethylene Sheeting ASTM C171
White-pigmented Liquid Membrane-Forming Compound, Type
2, Class B ASTM C309
CONSTRUCTION METHODS
610-3.1 General. The Contractor shall furnish all labor, materials, and services necessary for, and incidental to, the completion of all work as shown on the drawings and specified here. All machinery and equipment used by the Contractor on the work, shall be of sufficient size to meet the requirements of the work. All work shall be subject to the inspection and approval of the RPR. 610-3.2 Concrete Mixture. The concrete shall develop a compressive strength of 4000 psi 28 MPa in 28 days as determined by test cylinders made in accordance with ASTM C31 and tested in accordance with ASTM C39. The concrete shall contain not less than 470 pounds of cementitious material per cubic yard (280 kg per cubic meter). The water cementitious ratio shall not exceed 0.45 by weight. The air content of the concrete shall be 5% +/- 1.2% as determined by ASTM C231 and shall have a slump of not more than 4 inches (100 mm) as determined by ASTM C143.
610-3.3 Mixing. Concrete may be mixed at the construction site, at a central point, or wholly or in part in truck mixers. The concrete shall be mixed and delivered in accordance with the requirements of ASTM C94 or ASTM C685.
The concrete shall be mixed only in quantities required for immediate use. Concrete shall not be mixed while the air temperature is below 40°F (4°C) without the RPRs approval. If approval is granted for mixing under such conditions, aggregates or water, or both, shall be heated and the concrete shall be placed at a temperature not less than 50°F (10°C) nor more than 100°F (38°C). The Contractor shall be held responsible for any defective work, resulting from freezing or injury in any manner during placing and curing, and shall replace such work at his expense.
Retempering of concrete by adding water or any other material is not permitted.
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Item P-610 Concrete for Miscellaneous Structures 413
The rate of delivery of concrete to the job shall be sufficient to allow uninterrupted placement of the concrete.
610-3.4 Forms. Concrete shall not be placed until all the forms and reinforcements have been inspected and approved by the RPR. Forms shall be of suitable material and shall be of the type, size, shape, quality, and strength to build the structure as shown on the plans. The forms shall be true to line and grade and shall be mortar-tight and sufficiently rigid to prevent displacement and sagging between supports.
The surfaces of forms shall be smooth and free from irregularities, dents, sags, and holes. The Contractor shall be responsible for their adequacy.
The internal form ties shall be arranged so no metal will show in the concrete surface or discolor the surface when exposed to weathering when the forms are removed. All forms shall be wetted with water or with a non-staining mineral oil, which shall be applied immediately before the concrete is placed. Forms shall be constructed so they can be removed without injuring the concrete or concrete surface. 610-3.5 Placing reinforcement. All reinforcement shall be accurately placed, as shown on the plans, and shall be firmly held in position during concrete placement. Bars shall be fastened together at intersections.
The reinforcement shall be supported by approved metal chairs. Shop drawings, lists, and bending details shall be supplied by the Contractor when required.
610-3.6 Embedded items. Before placing concrete, all embedded items shall be firmly and securely fastened in place as indicated. All embedded items shall be clean and free from coating, rust, scale, oil, or any foreign matter. The concrete shall be spaded and consolidated around and against embedded items.
The embedding of wood shall not be allowed.
610-3.7 Concrete Consistency. The Contractor shall monitor the consistency of the concrete delivered to the project site; collect each batch ticket; check temperature; and perform slump tests on each truck at the project site in accordance with ASTM C143.
610-3.8 Placing concrete. All concrete shall be placed during daylight hours, unless otherwise approved.
The concrete shall not be placed until the depth and condition of foundations, the adequacy of forms and falsework, and the placing of the steel reinforcing have been approved by the RPR. Concrete shall be placed as soon as practical after mixing, but in no case later than one (1) hour after water has been added to the mix. The method and manner of placing shall avoid segregation and displacement of the reinforcement. Troughs, pipes, and chutes shall be used as an aid in placing concrete when necessary. The concrete shall not be dropped from a height of more than 5 feet (1.5 m). Concrete shall be deposited as nearly as practical in its final position to avoid segregation due to rehandling or flowing. Do not subject concrete to procedures which cause segregation. Concrete shall be placed on clean, damp surfaces, free from running water, or on a properly consolidated soil foundation. 610-3.9 Vibration. Vibration shall follow the guidelines in American Concrete Institute (ACI) Committee 309R, Guide for Consolidation of Concrete.
610-3.10 Joints. Joints shall be constructed as indicated on the plans. 610-3.11 Finishing. All exposed concrete surfaces shall be true, smooth, and free from open or rough areas, depressions, or projections. All concrete horizontal plane surfaces shall be brought flush to the proper elevation with the finished top surface struck-off with a straightedge and floated. 610-3.12 Curing and protection. All concrete shall be properly cured in accordance with the recommendations in American Concrete Institute (ACI) 308R, Guide to External Curing of Concrete.
The concrete shall be protected from damage until project acceptance. 610-3.13 Cold weather placing. When concrete is placed at temperatures below 40°F (4°C), follow the cold weather concreting recommendations found in ACI 306R, Cold Weather Concreting.
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Item P-610 Concrete for Miscellaneous Structures 414
610-3.14 Hot weather placing. When concrete is placed in hot weather greater than 85ºF (30 ºC), follow the hot weather concreting recommendations found in ACI 305R, Hot Weather Concreting.
QUALITY ASSURANCE (QA)
610-4.1 Quality Assurance sampling and testing. Concrete for each day’s placement will be accepted on the basis of the compressive strength specified in paragraph 610-3.2. The RPR will sample the concrete in accordance with ASTM C172; test the slump in accordance with ASTM C143; make and cure compressive strength specimens in accordance with ASTM C31; and test in accordance with ASTM C39.
The QA testing agency will meet the requirements of ASTM C1077.
The Contractor shall provide adequate facilities for the initial curing of cylinders. 610-4.2 Defective work. Any defective work that cannot be satisfactorily repaired as determined by the RPR, shall be removed and replaced at the Contractor’s expense. Defective work includes, but is not limited to, uneven dimensions, honeycombing and other voids on the surface or edges of the concrete.
METHOD OF MEASUREMENT
610-5.1 Concrete shall be considered incidental and no separate measurement shall be made.
BASIS OF PAYMENT
610-6.1 Concrete shall be considered incidental and no separate payment shall be made.
REFERENCES
The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.
ASTM International (ASTM)
ASTM A184 Standard Specification for Welded Deformed Steel Bar Mats for Concrete Reinforcement
ASTM A615 Standard Specification for Deformed and Plain Carbon-Steel Bars for Concrete Reinforcement
ASTM A704 Standard Specification for Welded Steel Plain Bar or Rod Mats for Concrete Reinforcement
ASTM A706 Standard Specification for Low-Alloy Steel Deformed and Plain Bars for Concrete Reinforcement
ASTM A775 Standard Specification for Epoxy-Coated Steel Reinforcing Bars ASTM A884 Standard Specification for Epoxy-Coated Steel Wire and Welded Wire Reinforcement
ASTM A934 Standard Specification for Epoxy-Coated Prefabricated Steel Reinforcing Bars
ASTM A1064 Standard Specification for Carbon-Steel Wire and Welded Wire Reinforcement, Plain and Deformed, for Concrete
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Item P-610 Concrete for Miscellaneous Structures 415
ASTM C31 Standard Practice for Making and Curing Concrete Test Specimens in the Field
ASTM C33 Standard Specification for Concrete Aggregates ASTM C39 Standard Test Method for Compressive Strength of Cylindrical Concrete Specimens
ASTM C94 Standard Specification for Ready-Mixed Concrete ASTM C136 Standard Test Method for Sieve or Screen Analysis of Fine and Coarse Aggregates
ASTM C114 Standard Test Methods for Chemical Analysis of Hydraulic Cement ASTM C136 Standard Test Method for Sieve Analysis of Fine and Coarse Aggregates ASTM C143 Standard Test Method for Slump of Hydraulic-Cement Concrete ASTM C150 Standard Specification for Portland Cement
ASTM C171 Standard Specification for Sheet Materials for Curing Concrete ASTM C172 Standard Practice for Sampling Freshly Mixed Concrete ASTM C231 Standard Test Method for Air Content of Freshly Mixed Concrete by the Pressure Method
ASTM C260 Standard Specification for Air-Entraining Admixtures for Concrete ASTM C309 Standard Specification for Liquid Membrane-Forming Compounds for Curing Concrete
ASTM C311 Standard Test Methods for Sampling and Testing Fly Ash or Natural Pozzolans for Use in Portland-Cement Concrete
ASTM C494 Standard Specification for Chemical Admixtures for Concrete ASTM C618 Standard Specification for Coal Fly Ash and Raw or Calcined Natural Pozzolan for Use in Concrete
ASTM C666 Standard Test Method for Resistance of Concrete to Rapid Freezing and Thawing
ASTM C685 Standard Specification for Concrete Made by Volumetric Batching and Continuous Mixing
ASTM C989 Standard Specification for Slag Cement for Use in Concrete and Mortars ASTM C1017 Standard Specification for Chemical Admixtures for Use in Producing Flowing Concrete
ASTM C1077 Standard Practice for Agencies Testing Concrete and Concrete Aggregates for Use in Construction and Criteria for Testing Agency Evaluation
ASTM C1157 Standard Performance Specification for Hydraulic Cement ASTM C1260 Standard Test Method for Potential Alkali Reactivity of Aggregates (Mortar-Bar Method)
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Item P-610 Concrete for Miscellaneous Structures 416
ASTM C1365 Standard Test Method for Determination of the Proportion of Phases in Portland Cement and Portland-Cement Clinker Using X-Ray Powder Diffraction Analysis
ASTM C1602 Standard Specification for Mixing Water Used in the Production of Hydraulic Cement Concrete
ASTM D1751 Standard Specification for Preformed Expansion Joint Filler for Concrete Paving and Structural Construction (Nonextruding and Resilient Asphalt Types)
ASTM D1752 Standard Specification for Preformed Sponge Rubber Cork and Recycled PVC Expansion Joint Fillers for Concrete Paving and Structural Construction
American Concrete Institute (ACI)
ACI 305R Hot Weather Concreting
ACI 306R Cold Weather Concreting
ACI 308R Guide to External Curing of Concrete
ACI 309R Guide for Consolidation of Concrete
END OF ITEM P-610
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Item P-610 Concrete for Miscellaneous Structures 417
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Item P-620 Runway and Taxiway Marking 418
Item P-620 Runway and Taxiway Marking
DESCRIPTION
620-1.1 This item shall consist of the preparation and painting of numbers, markings, and stripes on the surface of runways, taxiways, and aprons, in accordance with these specifications and at the locations shown on the plans, or as directed by the Resident Project Representative (RPR). The terms “paint” and “marking material” as well as “painting” and “application of markings” are interchangeable throughout this specification.
MATERIALS
620-2.1 Materials acceptance. The Contractor shall furnish manufacturer’s certified test reports, for materials shipped to the project. The certified test reports shall include a statement that the materials meet the specification requirements. This certification along with a copy of the paint manufacturer’s surface preparation; marking materials, including adhesion, flow promoting and/or floatation additive; and application requirements must be submitted and approved by the Resident Project Representative (RPR) prior to the initial application of markings. The reports can be used for material acceptance or the RPR may perform verification testing. The reports shall not be interpreted as a basis for payment. The Contractor shall notify the RPR upon arrival of a shipment of materials to the site. All material shall arrive in sealed containers that are easily quantifiable for inspection by the RPR. 620-2.2 Marking materials.
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Item P-620 Runway and Taxiway Marking 419
Table 1. Marking Materials
Paint1 Glass Beads2
Type Color Fed Std. 595
Number
Application Rate
Maximum
Type Application Rate
Minimum
*Waterbo
rne
*White 37925 115 ft2/gal
(2.8 m2/l)*
Type I,
Gradation
A
7 lb/gal
(0.85 kg/l)
*Waterbo
rne
*Red 31136 115 ft2/gal
(2.8 m2/l)*
Type I,
Gradation
A
5 lb/gal
(0.85 kg/l)
*Waterbo
rne
*Yellow 33538 or 33655 115 ft2/gal
(2.8 m2/l)*
Type I,
Gradation
A
7 lb/gal
(0.85 kg/l)
*Waterbo
rne
*Black 31136 115 ft2/gal
(2.8 m2/l)*
-- --
Temporar
y
Marking
Waterbor
ne
-- -- 230 ft2/gal
(5.6 m2/l)
No Beads No Beads
1 See paragraph 620-2.2a
2 See paragraph 620-2.2b
a. Paint. Paint shall be waterborne in accordance with the requirements of this paragraph. Paint colors shall comply with Federal Standard No. 595.
Waterborne. Paint shall meet the requirements of Federal Specification TT-P-1952F, Type II. The non- volatile portion of the vehicle for all paint types shall be composed of a 100% acrylic polymer as determined by infrared spectral analysis.
]
b. Reflective media. Glass beads for white and yellow paint shall meet the requirements for Federal Specification TT-B-1325D Type I, Gradation A.
Glass beads for red and pink paint shall meet the requirements for Type I, Gradation A.
Glass beads shall be treated with all compatible coupling agents recommended by the manufacturers of the paint and reflective media to ensure adhesion and embedment.
Glass beads shall not be used in black and green paint.
Type III glass beads shall not be used in red and pink paint.
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CONSTRUCTION METHODS
620-3.1 Weather limitations. Painting shall only be performed when the surface is dry, and the ambient temperature and the pavement surface temperature meet the manufacturer’s recommendations in accordance with paragraph 620-2.1. Painting operations shall be discontinued when the ambient or surface temperatures does not meet the manufacturer’s recommendations. Markings shall not be applied when the wind speed exceeds 10 mph unless windscreens are used to shroud the material guns. Markings shall not be applied when weather conditions are forecasts to not be within the manufacturers’ recommendations for application and dry time.
620-3.2 Equipment. Equipment shall include the apparatus necessary to properly clean the existing surface, a mechanical marking machine, a bead dispensing machine, and such auxiliary hand-painting equipment as may be necessary to satisfactorily complete the job.
The mechanical marker shall be an atomizing spray-type or airless type marking machine with automatic glass bead dispensers suitable for application of traffic paint. It shall produce an even and uniform film thickness and appearance of both paint and glass beads at the required coverage and shall apply markings of uniform cross-sections and clear-cut edges without running or spattering and without over spray. The marking equipment for both paint and beads shall be calibrated daily. 620-3.3 Preparation of surfaces. Immediately before application of the paint, the surface shall be dry and free from dirt, grease, oil, laitance, or other contaminates that would reduce the bond between the paint and the pavement. Use of any chemicals or impact abrasives during surface preparation shall be approved in advance by the RPR. After the cleaning operations, sweeping, blowing, or rinsing with pressurized water shall be performed to ensure the surface is clean and free of grit or other debris left from the cleaning process.
a. Preparation of new pavement surfaces. The area to be painted shall be cleaned by broom, blower, water blasting, or by other methods approved by the RPR to remove all contaminants, including PCC curing compounds, minimizing damage to the pavement surface. b. Preparation of pavement to remove existing markings. Existing pavement markings shall be removed by rotary grinding, water blasting, or by other methods approved by the RPR minimizing damage to the pavement surface. The removal area may need to be larger than the area of the markings to eliminate ghost markings. After removal of markings on asphalt pavements, apply a fog seal or seal coat to ‘block out’ the removal area to eliminate ‘ghost’ markings. c. Preparation of pavement markings prior to remarking. Prior to remarking existing markings, loose existing markings must be removed minimizing damage to the pavement surface, with a method approved by the RPR. After removal, the surface shall be cleaned of all residue or debris.
Prior to the application of markings, the Contractor shall certify in writing that the surface is dry and free from dirt, grease, oil, laitance, or other foreign material that would prevent the bond of the paint to the pavement or existing markings. This certification along with a copy of the paint manufactures application and surface preparation requirements must be submitted to the RPR prior to the initial application of markings.
620-3.4 Layout of markings. The proposed markings shall be laid out in advance of the paint application. All markings with the exception of black paint shall receive glass beads shall. 620-3.5 Application. A period of 30 days shall elapse between placement of surface course or seal coat and application of the permanent paint markings. Paint shall be applied at the locations and to the dimensions and spacing shown on the plans. Paint shall not be applied until the layout and condition of the surface has been approved by the RPR.
The edges of the markings shall not vary from a straight line more than 1/2 inch (12 mm) in 50 feet (15 m), and marking dimensions and spacing shall be within the following tolerances:
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Marking Dimensions and Spacing Tolerance
Dimension and Spacing Tolerance
36 inch (910 mm) or less ±1/2 inch (12 mm)
greater than 36 inch to 6 feet (910 mm to 1.85 m) ±1 inch (25 mm) greater than 6 feet to 60 feet (1.85 m to 18.3 m) ±2 inch (50 mm) greater than 60 feet (18.3 m) ±3 inch (76 mm)
The paint shall be mixed in accordance with the manufacturer’s instructions and applied to the pavement with a marking machine at the rate shown in Table 1. The addition of thinner will not be permitted.
Glass beads shall be distributed upon the marked areas at the locations shown on the plans to receive glass beads immediately after application of the paint. A dispenser shall be furnished that is properly designed for attachment to the marking machine and suitable for dispensing glass beads. Glass beads shall be applied at the rate shown in Table 1. Glass beads shall not be applied to black paint or green paint. Glass beads shall adhere to the cured paint or all marking operations shall cease until corrections are made.
Different bead types shall not be mixed. Regular monitoring of glass bead embedment and distribution should be performed.
620-3.6 Application--preformed thermoplastic airport pavement markings.
Preformed thermoplastic pavement markings not used.
620-3.7 Control strip. Prior to the full application of airfield markings, the Contractor shall prepare a control strip in the presence of the RPR. The Contractor shall demonstrate the surface preparation method and all striping equipment to be used on the project. The marking equipment must achieve the prescribed application rate of paint and population of glass beads (per Table 1) that are properly embedded and evenly distributed across the full width of the marking. Prior to acceptance of the control strip, markings must be evaluated during darkness to ensure a uniform appearance. 620-3.8 Retro-reflectance. [Reflectance shall be measured with a portable retro-reflectometer meeting ASTM E1710 (or equivalent). A total of 6 reading shall be taken over a 6 square foot area with 3 readings taken from each direction. The average shall be equal to or above the minimum levels of all readings which are within 30% of each other.
Minimum Retro-Reflectance Values
Material Retro-reflectance mcd/m2/lux
White Yellow Red
Initial Type I 300 175 35
Initial Type III 600 300 35
Initial Thermoplastic 225 100 35
All materials, remark when less than1 100 75 10
1 ‘Prior to remarking determine if removal of contaminants on markings will restore retro-reflectance][not used]
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620-3.9 Protection and cleanup. After application of the markings, all markings shall be protected from damage until dry. All surfaces shall be protected from excess moisture and/or rain and from disfiguration by spatter, splashes, spillage, or drippings. The Contractor shall remove from the work area all debris, waste, loose reflective media, and by-products generated by the surface preparation and application operations to the satisfaction of the RPR. The Contractor shall dispose of these wastes in strict compliance with all applicable state, local, and federal environmental statutes and regulations.
METHOD OF MEASUREMENT
620-4.1a The quantity of surface preparation shall not be measured or paid for separately. The cost of this work item shall be considered incidental to the cost of the markings. 620-4.1b The quantity of markings shall be paid for shall be measured by the number of square feet (square meters) of painting.
620-4.1c The quantity of reflective media shall not be measured or paid for separately. It shall be considered incidental to the cost of the markings.
620-4.1d The quantity of temporary markings to be paid for shall be the number of square feet (square meters) of painting performed in accordance with the specifications and accepted by the RPR. Temporary marking includes surface preparation, application and complete removal of the temporary marking.
BASIS OF PAYMENT
620-5.1 This price shall be full compensation for furnishing all materials and for all labor, equipment, tools, and incidentals necessary to complete the item complete in place and accepted by the RPR in accordance with these specifications.
620-5.1a Payment for surface preparation - not used.
620-5.2b Payment for markings shall be made at the contract price for the number of square feet (square meters) of painting
620-5.3c Payment for reflective media - not used.
620-5.4d Temporary markings are not required.
]
Payment will be made under:
Item P-620-5.1a Surface Preparation -not used
Item P-620-5.2b Marking- per square foot (square meter) Item P-620-5.3c Reflective Media - not used
Item P-620-5.4d Temporary runway and taxiway marking - not used.
REFERENCES
The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.
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ASTM International (ASTM)
ASTM D476 Standard Classification for Dry Pigmentary Titanium Dioxide Products ASTM D968 Standard Test Methods for Abrasion Resistance of Organic Coatings by Falling Abrasive
ASTM D1652 Standard Test Method for Epoxy Content of Epoxy Resins ASTM D2074 Standard Test Method for Total, Primary, Secondary, and Tertiary Amine Values of Fatty Amines by Alternative Indicator Method ASTM D2240 Standard Test Method for Rubber Property - Durometer Hardness ASTM D7585 Standard Practice for Evaluating Retroreflective Pavement Markings Using Portable Hand-Operated Instruments
ASTM E303 Standard Test Method for Measuring Surface Frictional Properties Using the British Pendulum Tester
ASTM E1710 Standard Test Method for Measurement of Retroreflective Pavement Marking Materials with CEN-Prescribed Geometry Using a Portable Retroreflectometer
ASTM E2302 Standard Test Method for Measurement of the Luminance Coefficient Under Diffuse Illumination of Pavement Marking Materials Using a Portable Reflectometer
ASTM G154 Standard Practice for Operating Fluorescent Ultraviolet (UV) Lamp Apparatus for Exposure of Nonmetallic Materials
Code of Federal Regulations (CFR)
40 CFR Part 60, Appendix A-7, Method 24
Determination of volatile matter content, water content, density, volume solids, and weight solids of surface coatings
29 CFR Part 1910.1200 Hazard Communication
Federal Specifications (FED SPEC)
FED SPEC TT-B-1325D Beads (Glass Spheres) Retro-Reflective FED SPEC TT-P-1952F Paint, Traffic and Airfield Marking, Waterborne FED STD 595 Colors used in Government Procurement
Commercial Item Description
A-A-2886B Paint, Traffic, Solvent Based
Advisory Circulars (AC)
AC 150/5340-1 Standards for Airport Markings
AC 150/5320-12 Measurement, Construction, and Maintenance of Skid Resistant Airport Pavement Surfaces
END OF ITEM P-620
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Item P-621 Saw-Cut Grooves
NOT USED
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Item P-640 Piping, Fittings, and Appurtenances
PART 1 – GENERAL
1.01 SUMMARY
A. Section Includes: Furnish and install all piping, including fittings, valves, and accessories as shown on the Drawings, described in the Specifications and as required to completely interconnect all piping for a complete and operable systems.
B. Related Sections:
1. Item P-152 Excavation Subgrade and Embankment
1.02 REFERENCES
A. American Association of State Highway and Transportation Officials (AASHTO) B. American National Standards Institute (ANSI)
C. American Society of Mechanical Engineers (ASME)
D. American Society for Testing and Materials (ASTM)
E. American Water Works Association (AWWA)
F. California Department of Transportation Std. Specifications (Caltrans)
1.03 SUBMITTALS
A. Submit in accordance with Section 01300.
B. Shop Drawings:
1. Layouts and schematics: Submit detailed installation drawings of all piping and connected equipment. The drawings shall include each pipe, all fittings, valves, and other appurtenances (Product Review submittal).
2. Verify by excavation, inspection and measurement all installation conditions for buried pipe before preparation of Shop Drawings. Submit field measurements with Shop Drawings where exposed conditions are significantly different than indicated on the Drawings.
3. Submit data to show that the following items conform to the Specification requirements:
a. Pipe, fittings, and accessories.
b. Flexible couplings.
c. Restrained joints.
d. Valves.
e. Combination air/vacuum release valves.
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f. Magmeters.
4. Submit certified test reports as required herein and by the referenced Standard Specifications.
5. Disinfection Plan including:
a. "Normal" disinfection procedure per AWWA C651. 15050-2 b. Emergency disinfection procedure for mains and services, which must be returned to service immediately.
c. Disinfection schedule including number and type of services and length of disruption of service.
d. Disinfecting agent(s).
e. Method of disposal of chlorinated water.
6. Submit procedures for welding field joints of welded steel and stainless steel pipes and welder qualifications (Product Review).
7. Cleaning and Hydrostatic Test Plans.
C. Manuals: The Contractor shall furnish manufacturer's installation and operation manuals, bulletins, and spare parts lists for the following items:
1. All valves over 4-inch size.
2. Combination air/vacuum release valves.
3. All magmeters.
4. All automatic control valves.
D. Affidavits: Submit affidavits from the manufacturer for the following items:
1. All valves over 4-inch size.
2. Combination air/vacuum release valves.
3. All magmeters.
4. All automatic control valves.
E. The preceding submittals shall be in the Product Information Category except where noted.
1.04 QUALITY ASSURANCE
A. All materials and equipment furnished under this Section shall: (1) be of a manufacturer who has been regularly engaged in the design and manufacture of the materials and equipment for at least five (5) years; and (2) be demonstrated to the satisfaction of the Engineer that the quality is equal to the materials and equipment made by those manufacturers specifically named herein, if an alternate product manufacturer is proposed.
B. Factory Quality Control: The Contractor shall test all products as noted herein and by the referenced Specifications.
C. Field Quality Control:
1. The Contractor shall:
a. Perform leakage tests per AWWA C600 or AWWA C605.
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b. Provide bacteriological sampling and testing, by an independent certified testing laboratory, to verify satisfactory disinfection of potable water piping and accessories.
1.05 POTHOLING (CHECK ON LOCATIONS)
A. Refer to Section 02200, paragraph 3.02.
1.06 CONSTRUCTION SCHEDULING/SEQUENCING
A. Construction under this Contract involves expansion and modification of the Owner’s existing water system, which must continue to provide service during construction. Refer to Section 01010 and Section 01040.
PART 2 – PRODUCTS
2.01 GENERAL
A. Pipe and valve sizes are nominal diameter unless otherwise noted.
B. All materials delivered to the job site shall be new, free from defects, and marked to identify the material, class, and other appropriate data such as thickness for piping.
C. Acceptance of materials shall be subject to strength and quality testing in addition to inspection of the completed product. Acceptance of installed piping systems shall be based on inspection and leakage and bacteriological tests as specified hereinafter.
D. Products in contact with potable water shall be certified to NSF Standard 61.
2.02 PIPING MATERIALS
A. Pipe Designation: Piping materials for miscellaneous small piping are designated on the Drawings. New water transmission mains shall be either ductile iron pipe or PVC C900, PVC C905, except that for water mains aboveground and connecting to the new water tank shall be welded steel pipe.
B. Pipe Systems: Each designation identifies not only the pipe itself, but the entire system as well as including the associated fittings, appurtenances, and installation and test procedures.
C. Ductile Iron (DI):
1. Pipe: Ductile iron, AWWA C151. Unless otherwise specified, provide push-on joints and minimum Pressure Class 250.
a. Push-on joints and mechanical joints: AWWA C111.
b. Flanged joints: AWWA C115.
2. Fittings: Ductile iron only, AWWA C110 or AWWA C153. Gray cast iron fittings are not acceptable. Fittings shall be furnished by, or under the direct supervision of, the pipe manufacturer.
Unless otherwise specified, provide push-on or mechanical joint fittings.
3. Joint restraint (pipe and fittings, where required):
a. Push-on joints: Capable of deflection after the restraint is installed.
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1) TR FLEX by United States Pipe & Foundry Company; Thrust-Lock by Pacific States Cast Iron Pipe Company; or equal.
2) Connect pipe cut in the field, where necessary and when 15050-4 favorably reviewed by the Engineer, by TR FLEX Gripper Ring System by United States Pipe & Foundry Company; or equal.
b. Mechanical joints: Restraining gland; EBAA Megalug Series 1100; or equal. c. Flanged joints only where otherwise specified.
4. Lining (pipe and fittings): Unless otherwise specified, cement mortar lining, AWWA C104, standard thickness, with seal coat.
5. Gaskets: Unless otherwise specified, vulcanized styrene butadiene rubber (SBR). Provide special gaskets, complying with the requirements of AWWA C111, Section 4.2.2, at flanged connections with pressures in excess of 250 psi.
6. All Ductile Iron Pipe shall be polyethylene encased per AWWA C105.
D. Galvanized Steel Pipe:
1. Pipe: Galvanized steel, ASTM A120, Schedule 80.
2. Fittings: Galvanized malleable iron, screwed, ASTM A197 for materials, ANSI B16.3 150 psi for dimensions.
3. Threads: ANSI B2.1.
4. Unions: Galvanized malleable iron, ASTM A197 for materials and ANSI B16.39 for dimensions, with brass seats.
5. Thread compound: Permatex No. 2, Crane equivalent, or equal, or teflon tape.
E. Steel Pipe Assemblies:
1. Steel pipe assemblies consist of combinations of steel pipe, special sections (fittings) and flanges, as detailed on the Drawings.
a. Assemblies shall be shop welded, and all interior and exterior welds and edges ground smooth.
b. After all welding and grinding is complete, assemblies shall be fusion-bonded lined and coated per AWWA C213. Application shall be by the fluid bed method only unless the greatest dimension of the article to be coated exceeds ten feet, in which case electrostatic spray method may be used.
c. No field welding is permitted, except as specified in paragraph 3.01 of this section.
2. Pipe and fittings: AWWA C200.
a. The minimum wall thickness of pipe and fittings shall be 0.1875 inch. b. Unless otherwise noted or detailed on the Drawings, fitting dimensions shall conform to AWWA C208. Adding pipe to the fittings does not change the requirement that fittings conform to AWWA C208 dimensionally, nor does it reclassify the pipe portion as part of the fitting.
c. Provide reinforcement for fittings in the form of collars, wrappers or crotch plates, in accordance with AWWA M11 Table 13-2; use 150 psi for the design pressure P. d. Mitered 90 Degree Elbows: Four pieces minimum.
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e. Mitered 45 Degree Elbows: Three pieces minimum. 15050-5 f. The manufacturer shall maintain records that identify the cylinder used for all completed pipe and fittings.
3. Flanges: AWWA C207 standard steel-ring flanges, Class B or D. Flanges shall be welded to the cylinder without warping and with flange face perpendicular to the longitudinal axis of the cylinder.
4. Gaskets: AWWA C207, 1/8-inch thick.
5. Provide certification of hydrostatic testing in accordance with AWWA C200.
F. Polyvinyl Chloride Pipe (4-inch to 12-inch):
1. Pipe: Polyvinyl Chloride (PVC), AWWA C900, Class 150
2. Fittings: Ductile iron, in accordance with Paragraph 2.02C of this Section.
3. Joint Restraint:
a. Push-on Joints: Restraining harness, Series 1600 by EBAA Iron; Style 611 by Romac; or equal.
b. Mechanical Joints: Restraining gland, Series 2000 PV by EBAA Iron; or equal.
G. Polyvinyl Chloride Pipe (smaller than 4-inch):
1. Pipe: Schedule 80 polyvinyl chloride (PVC), gray, normal impact, Type 12454 B, ASTM D1784 and ASTM D1785. Pipe shall bear the National Sanitation Foundation (NSF) label.
2. Joints: Solvent weld, except flanged or threaded permitted where required at equipment connections and where required on the Drawings. Solvent weld and primer for PVC pipe and fittings used for sodium hypochlorite product and solution shall be as recommended by pipe manufacturer.
3. Fittings: Solvent weld, socket type, of same material as the pipe, Schedule 80, ASTM D2467 or threaded PVC Plastic Pipe Fittings, ASTM D2464, Schedule 80.
4. Cement: Solvent weld, ASTM D2564, as recommended by the pipe manufacturer for the schedule and size to be joined.
5. Pipe Cleaner: As recommended by the pipe manufacturer for the schedule and size to be joined.
H. Smooth-Interior Corrugated High-Density Polyethylene (HDPE) Pipe.
1. Pipe and Fittings: AASHTO M294, Type S; Hancor Blue Seal, or equal.
2. Joints: Watertight (10.8 psi) bell and spigot.
3. Gaskets: ASTM F477.
2.03 PIPE COUPLINGS
A. General: For typical pipe joints, refer to pipe material specifications. Other joint devices shall be furnished where called for as specified below.
B. Flexible Couplings and Flange Coupling Adaptors:
1. Sleeve: Cast iron or fabricated steel.
2. Followers: Cast iron, ductile iron, or steel.
3. Sleeve bolts: ASTM A325, Type 3; malleable iron; or equivalent. 15050-6 A.10.e
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4. Coating: Fusion epoxy line and coat sleeve and followers.
5. Pressure rating: 250 psi.
6. Buried flexible coupling sleeve: Long barrel
7. Manufacturers:
a. Flexible couplings:
1) Connecting pipe with identical outside diameters: SmithBlair 411 or 431, Dresser Style 38 or 53, or equal.
2) Connecting pipe with slightly different outside diameters: Smith-Blair 413 or R 441, Dresser Style 162, or equal.
b. Flange coupling adaptors:
1) Connecting new pipe or new pipe to existing non-ferrous pipe: Smith-Blair 912 or 913, Dresser Style 127 or 128, or equal.
2) Connecting new pipe to existing ferrous pipe: Insulating flange coupling adaptor with insulating boot: Smith-Blair 932 or 933, or equal.
8. Gaskets: Oil and grease resistant; Smith-Blair Grade 60; or equal.
9. Joint restraint: Provide joint harnesses (tie rod lug or attachment plate assemblies) across flexible couplings and flange coupling adaptors where indicated on the Drawings. For flanged coupling adaptors, anchor studs may be substituted for the harnesses on pipe up to 12-inch. Design restraint in accordance with AWWA M-11 for 250 psi if size of the rods is not indicated on the Drawings.
C. Flexible Joint Restraint Couplings
1. The Casing, Ball, and Sleeve shall be of ductile iron meeting or exceeding ASTM A 536.
2. The entire fitting shall be lined and coated with fusion bonded epoxy applied and tested in accordance with AWWA C213.
3. Flexible Joint Restraint Couplings shall be Romac FlexiJoint or approved equal.
D. Expansion Joint:
1. Spool-type non-metallic expansion joint; Proco Series 231 or Series 232; or equal.
2.04 VALVES AND ACCESSORIES
A. General Requirements for Valves:
1. All valves of each type shall be the product of one manufacturer.
2. All valves shall be furnished with control assembly, operators, handwheels, levers, or other suitable type wrench including handles as specified herein or as shown on the Drawings.
3. All threaded stem valves shall open by turning the valve stem counterclockwise.
4. The exterior of all buried valves and valve operators shall be painted with two coats of Tape Coat Mastic; Protecto Wrap CA1180 Mastic; or equal, except where otherwise indicated.
B. Manual Valves and Accessories:
1. Butterfly valves:
a. Rating: 150 psi water. Leaktight in both directions. 15050-7 A.10.e
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b. Type: Flanged body, or as shown on the Drawings, AWWA C504, geared operator, resilient seated, 90 degree seating.
c. Materials: Cast iron body; cast iron or ductile iron disc with NiChrome or Type 316 stainless steel edge; Type 304 stainless steel shaft; disc to be secured to shaft with Type 304 stainless steel taper pins.
d. Operator: Traveling-nut type, 2-inch standard AWWA nut, designed for buried service, watertight to 10 psi with extension stem as detailed on the Drawings. e. Valve seat: Buna-N seat shall be applied to the valve body. Bearings: Self-lubricating and corrosion resistant.
g. Finish: Internal, asphalt varnish in accordance with AWWA C504; external, factory applied coal tar epoxy, 16 mils minimum thickness.
h. Manufacturers: Pratt Groundhog, equivalent by DeZurik, or equal.
2. Gate Valves:
a. Rating: 200 psi water.
b. Type: Resilient wedge, non-rising stem, full diameter waterway, AWWA C509. c. Connection: As shown on the Drawings.
d. Stem seal: O-ring.
e. Finish: Fusion epoxy.
f. Manufacturers: American Darling; Clow; Kennedy; Mueller; or equal.
3. Canal Gate Valves:
a. Construction shall be of grey iron with an all-bolted steel frame with 1/4" minimum thickness. Valve shall include a cast-bronze lift nut and a cast iron wheel. Canal gates shall be Waterman C10 or approved equal.
4. Combination Air Vacuum Valve:
a. Air and vacuum release valves shall be combination air and vacuum release valves as manufactured by the Valve and Primer Corporation (APCO) 143-C, 145-C, etc, Crispin U- 10, U-20, etc.
C. Automatic Control Valves:
1. Automatic control valves include pressure reducing, pressure relief, rate of flow, surge anticipation, pump control, and altitude valves. Unless otherwise approved by the District Engineer, all automatic control valves shall be diaphragm actuated pilot controlled type and shall have a globe style body, stainless steel trim, V-port seating, and be fusion bonded epoxy lined and coated. The pilot system shall include pilot line wyestrainers with blow-offs, opening and closing speed controls, position indicator, and pilot system isolation cocks.
2. Pressure Reducing Valves:
a. Pressure reducing valves 2-inches and smaller shall be bronze body with stainless steel trim, self-contained, direct acting high capacity type with a built-in stainless steel strainer, have an adjustable outlet pressure setting, and be fully repairable in line. Valves shall be Watts Model U5B or Cla-Val Model 990. 15050-8
b. Pressure reducing valves larger than 2 inches shall be combination reducing/sustaining and diaphragm actuated pilot
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3. Pressure Relief Valves:
a. Pressure relief valves shall be diaphragm actuated pilot controlled type designed to maintain a steady upstream pressure by relieving excess pressure without causing pipeline surges. Valves shall be Watts Model 116 or Cla-Val Model 50-01.
4. Altitude Valves:
a. Altitude valves shall be diaphragm actuated pilot controlled type with a single seat and a resilient disc for tight closure. If required by system hydraulics, the valve shall be the two way flow type. For applications of altitude valves in which the differential pressure exceeds the manufacturer’s cavitation chart limit, and orifice plate shall be installed downstream of the valve to dampen the cavitation per the manufacturer’s recommendations. Valves shall be Watts Model 127 or Cla-Val Model 210.
D. Solonoid Valves:
1. Solenoid valves shall be two-way, full line size, normally closed, diaphragm type, 125 psi minimum body pressure, 5 psi minimum operating differential, for use with cold water or air. Valve shall be suitable for 115 volt, 60 Hz AC power supply.
2. All solenoid valves shall have manual operators, encapsulated soils and shall have electrical characteristics as indicated on the drawings. All valves shall be mounted horizontally.
E. Swing Check Valves:
1. Swing check valves 1.5 inches and smaller shall be all bronze, regrinding type designed for a working pressure of 150 psi.
2. Swing check valves for waterlines 2 inches and larger shall be iron body, brass trimmed, designed for a working pressure not less than 350 psi. The shall be of the balanced, swing gate type with a clear opening at least equal to that of the connecting pipe and shall have an external lever and counter weight.
3. Swing check valves shall be rubber flapper type, APCO Valve and Primer Corporation, Mueller, or Crane. F. Rubber Check Valves:
4. Tideflex by Red Valve Company; or equal.
2.05 FLOW METERS
A. Magnetic Flow Meters:
1. Flow meters shall be the magnetic type that utilizes the principle of electromagnetic induction to produce an output proportional to the rate of fluid flow. A set of pulsed, electrically powered coils shall generate a magnetic field that in turn induces a voltage in the flowing fluid that is sensed by a pair of electrodes in contact with the fluid.
2. Provide flow tube with sensor element, cables, remote converter/ transmitter with empty pipe detection option. The system shall be suitable for water with conductivity as low as 5.0 micromho/cm and shall have an accuracy of +/- 0.5% of rate.
3. Flow tube material: 15050-9
a. 12-inch (nominal) diameter and less: Polyvinyl chloride (PVC). b. Larger than 12-inch (nominal) diameter: Carbon steel with polyurethane lining and fusion epoxy coating.
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4. Connection: ANSI Class 150 flanges.
5. Electrodes: Type 316 stainless steel. Protect coils from contact with the fluid.
6. NEMA 6 (submersible to 30 feet).
7. Manufacturer: ISCO UniMag, McCrometer UltraMag, or approved equal.
8. Special Tools: Furnish special tools that are necessary for the replacement of parts and the adjustment of the equipment.
B. Turbine Meters:
1. Water meters 3 inches and larger shall be in conformance with AWWA C702. Meters shall be manufactured by Neptune or approved equal. Meters shall be a flanged single register high performance compound meter. The meter shall have a test plug on the downstream end of the meter.
2.06 APPURTENANCES
A. Tapping Sleeves and Saddles:
1. Tapping sleeves shall be entirely Type 304 Stainless Steel, including the flange, nuts and bolts, and must have a tapped test outlet and plug as manufactured by JCM, Ford, or Romac. Mueller ductile iron tapping saddles shall be permitted.
B. Polyethylene Encasement:
1. Polyethylene Encasement: AWWA C105, black, 8 mils. Joint tape shall be self-sticking, PVC or polyethylene, 10 mils thick; Chase “Chasekote 750”; Kendall “Polyken 900”; 3M “Scotchrap 50”; or equal.
PART 3 - EXECUTION 3.01 PIPING INSTALLATION
A. General:
1. Exercise great care to prevent injury to or scoring of the pipe lining and coating, as applicable, during handling, transportation or storage. Pipe shall not be stored on rough ground and rolling of the pipe on the coating will not be permitted. Repair any damaged pipe sections, specials, or fittings or replace at the direction of the Engineer.
2. Inspect each pipe fitting, valve and accessory carefully before installation. Inspect the interior and exterior protective coatings and patch all damaged areas in the field or replaced at the direction of the Engineer.
3. Place or erect all piping to accurate line and grade and backfill, support, hang, or brace against movement as specified or shown on the Drawings, or as required for proper installation. Remove all dirt and foreign matter from the pipe interior prior to installation and thoroughly clean all joints before joining.
4. Use reducing fittings where any change in pipe size occurs. Bushings shall not be used, unless specifically noted on the Drawings. Use 15050-10 eccentric reducing fittings wherever necessary to provide free drainage of lines.
5. Connections between ferrous and non-ferrous metallic piping and accessories shall be made using a dielectric coupling, union, or flange.
6. Install piping without springing or forcing the pipe in a manner that would set up stresses in the pipe, valves, or connected equipment.
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7. Set all pipe flanges level, plumb, and aligned. Flanged fittings shall be true and perpendicular to the axis of the pipe. Bolt holes in flanges shall straddle vertical centerline of pipes.
8. Flanged Joints: Flanged joints shall be made up tight with care being taken to avoid undue strain in the flanges, fittings, and other accessories. Bolt holes shall be aligned for each flanged joint.
Bolts shall be full-size for bolt holes; use of undersize bolts to make up for misalignment of bolt holes or for any other purpose will not be permitted. Adjoining flange faces shall not be out of parallel to such a degree that the flanged joint cannot be made watertight without overstraining the flange. Replace any flanged pipe or fitting whose dimensions do not allow the making of a proper flanged joint, as specified herein by one of proper dimensions. Clean flanges prior to making joints.
9. Restrained Joints: Install in accordance with manufacturer’s instructions. Pull slack out of joint after makeup.
10. Provide all necessary assembly bolts, washers and nuts, thrust blocks, supports, gaskets, flanges, and all other appurtenant items shown on the Drawings, specified or required for the proper installation and operation of the piping, and devices included in or on the piping, equipment, and piping accessories.
B. General Buried Piping Installation:
1. Trenching, bedding, and backfill for buried piping shall be as shown on the Drawings and as specified in Section 02200.
2. Where no grade elevations are shown on the Drawings, buried piping shall have at least 3 feet of cover.
3. Provide each pipe with a firm, uniform bearing for its full length in the trench except at field joints. Do not lay pipe in water or when trench conditions or weather are unsuitable for such work.
4. Protect buried piping against thrust by use of restrained pipe joints or thrust blocks as shown on the Drawings. Securely brace all exposed free pipe ends.
5. Do not deflect joints more than 75% of the maximum deflection permitted by the pipe manufacturer.
6. Provide polyethylene encasement of buried ductile iron components as follows:
a. Ductile iron pipe – single wrap.
b. Fittings, valves and pipe couplings, regardless of pipe type:
1) Fittings – single wrap.
2) Valves and pipe couplings – double wrap.
c. Flanged and mechanical joints, and other appurtenances with significantly different outside diameters from the pipe – double wrap.
d. Continuously seal seams and overlaps with tape. Seal circumferential overlaps with two turns of tape, half lapped. Gather excess polyethylene on top of pipe so as not to block backfill material from getting under bottom of pipe. Use caution so as not to rip or cut the polyethylene film. Seal any rips or cuts in the film with tape.
C. Potable Water Main Installation:
1. The Contractor is advised that precautions taken to keep the pipeline clean during construction will facilitate achieving the disinfection requirements of this project with a minimum of effort and expense. Compliance with these suggested minimum procedures will not relieve the Contractor of the disinfection requirements.
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2. Prior to installation, thoroughly clean the interior of each length of pipe and each fitting or valve and inspect to ensure that no foreign material remains. Cover both ends with plastic and do not uncover them until just prior to completing the joint.
3. Whenever pipe laying is discontinued for short periods, or whenever work is stopped at the end of the day, close the open ends of the pipe with watertight plugs or bulkheads.
4. Provide adequate trench pumping to ensure against groundwater contacting the inside of the pipeline at any time. Do now lower any pipe or fitting into a trench where groundwater is present and may enter the pipe. When necessary, pump the water from trenches and keep the trench dry until the joints have been completed and the open ends of the pipe have been closed with a watertight plug. Do not remove the plug until the trench has again been pumped dry.
5. Keep new pipe sections clean and dry.
6. Wherever the pipeline crosses over or under a sewer main or house service lateral, center a standard length pipe, 18-foot minimum, on said sewer main or lateral so as to have the pipeline joints as far as possible away from the sewer. This may require field cutting of some pipe pieces.
7. When making the connection between a new pipeline and an existing pipeline, or when repairing a damaged pipe, take the following extra precautions:
a. Clean the exterior of the existing pipeline of all dirt and debris, and spray or swab with a standard 5.25% or stronger chlorine solution (as specified) in the immediate vicinity of the work. Clean equipment and materials, including new pipe and fittings, to be used in making these connections of all dirt and debris and disinfect them. Allow at least thirty (30) minutes contact time for disinfection before the chlorine solution is diluted or rinsed off. Provide sufficient trench pumps to prevent flooding of the trench. b. When an old line is opened, either by accident or by design, the excavation may be wet or badly contaminated from groundwater. Apply liberal quantities of standard chlorine solution or tablets to the open trench areas to lessen the danger from such pollution. Tablets are recommended because they dissolve slowly and continue to release hypochlorite as water is pumped from the excavation. Scatter liberally around and locate the tablets so that flow entering the work site will contact the disinfecting agent. Trench application should be done very carefully to avoid contact by skin and clothing with chlorine solution.
Minimally, safety dictates wearing safety goggles and rain gear. c. When excavating a leaking or broken pipeline, “valve-off” the system gradually to less than watertightness. This is to prevent causing areas of zero pressure which would allow entry of foreign material. A flow should be maintained which is slightly less than trench pump capability. Once the break is exposed and cleaned to disallow site contamination, the valving can then be made watertight.
D. Installation Specifics:
1. Ductile Iron Pipe: Buried pipe shall be installed in accordance with AWWA C600.
2. Steel Pipe Assemblies:
a. Handle and install in accordance with AWWA C213.
b. No field welding is permitted except for connections to the tank and appurtenances.
Welded areas shall be coated as part of the tank. Refer to Section 13211, paragraph 3.04. c. Plain end(s) of assemblies may be trimmed to fit field conditions. Resultant exposed steel shall be coated in accordance with any of the following:
1) AWWA C213, Part 4.4.5.2.
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2) AWWA C210 (liquid-epoxy), Part 4.5.
3) Section 13211, paragraph 3.04 (ends that are accessible from inside the tank only).
3. Galvanized Steel Pipe: Threaded joints shall have connections made metal-to-metal tight. All burrs shall be removed from ends of pipe, and threads shall be cleaned of all oil and chips. Male threads shall be coated with joint lubrication.
4. Polyvinyl Chloride Pipe: Installation shall conform to AWWA M23, Chapters 6 and 7, as modified herein.
3.02 COUPLING INSTALLATION
A. Flexible Couplings and Flange Coupling Adaptors: Prior to installation, thoroughly clean oil, scale, rust, and dirt from the pipe to provide a clean seat for the gasket. Care shall be taken that the gaskets are wiped clean before they are installed. If necessary, flexible couplings and flanged coupling adapter gaskets may be lubricated with soapy water or manufacturer's standard lubricant before installation on the pipe ends.
Install in accordance with the manufacturer's recommendations. Bolts shall be tightened progressively, drawing up bolt on opposite sides a little at a time until all bolts have a uniform tightness. Workers tightening bolts shall be equipped with torque-limiting wrenches or other favorably reviewed type. Anchor studs on restrained flanged coupling adapters shall be installed so as to lock into holes drilled through pipe wall in accordance with manufacturer's recommendation.
B. Wrap buried couplings as specified in paragraph 3.01 B of this Section. 15050-13
3.03 INSTALLATION OF VALVES AND ACCESSORIES
A. Use reducing fittings where any change in pipe size occurs between valves or accessories and the attached pipeline. Bushings shall not be used, unless specifically noted on the Drawings. Use eccentric reducing fittings wherever necessary to provide free drainage of lines. Inspect each piece of pipe and each fitting carefully to see that there is no defective workmanship on pipe, or obstructions in pipes and fittings.
B. Wrap buried valve bodies as specified in paragraph 3.01 B of this Section.
3.04 NOT USED
3.05 NOT USED
3.06 LEAKAGE TESTING – PRESSURE PIPE
A. General: Perform leakage tests on the inlet pipe, outlet pipe and interconnected piping. Furnish all equipment, material, personnel, test media and supplies to perform the tests and make all taps and other necessary temporary connections. The test pressure, allowable leakage and test medium shall be as specified. Perform leakage tests on all piping at a time agreed upon and in the presence of the Engineer.
B. Buried Piping: Perform the leakage test for buried piping after all pipe is installed and backfilled.
However, preliminary tests may be conducted prior to backfill. If preliminary tests are conducted, provide any necessary temporary thrust restraint.
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C. Accessories: It is the responsibility of the Contractor to block off or remove equipment, valves, gauges, etc., which are not designed to withstand the full test pressure.
D. Testing Apparatus: Provide pipe taps, nozzles and connections as necessary in piping to permit testing, addition of test media, and draining lines and disposal of water, as is necessary. Plug these openings in a manner favorably reviewed by the Engineer after use. Provide all required temporary bulkheads.
E. Correction of Defects: If leakage exceeds the allowable, repair or replace the installation and repeat leakage tests as necessary until conformance to the leakage test requirements specified herein have been fulfilled. All visible leaks shall be repaired even if the pipeline passes the allowable leakage test.
F. Reports: Keep records of each piping test, including:
1. Description and identification of piping tested.
2. Test pressure.
3. Date of test.
4. Witnessing by Contractor and Engineer.
5. Test evaluation. 15050-14
6. Remarks, to include such items as:
a. Leaks (type, location).
b. Repairs made on leaks.
c. Submit test reports to the Engineer.
G. Venting: Where not shown on the Drawings, the Contractor may install valved "TEES" or corporation stops and saddles at high points on piping to permit venting of air. Valves shall be capped after testing is completed.
H. Testing Specifics:
1. Method: AWWA C600, as modified herein.
2. Duration: Four hours.
3. Pressure: 150 psi measured at lowest point of section of pipeline being tested.
4. Medium: Potable water.
5. Allowable Leakage: Leakage shall be defined as the quantity of test medium that must be added to the section of pipeline being tested to maintain the specified test pressure for the specified test duration. Maximum allowable leakage shall be as specified in AWWA C600.
3.07 DISINFECTION OF POTABLE WATER SYSTEMS
A. Prior to disinfection, the inside of each completed pipeline shall be thoroughly cleaned of all dirt, loose scale, sand and other foreign material. Cleaning shall be by sweeping, flushing with water internal cleaning device or “pig” or blowing with compressed air, as appropriate for the size and type of pipe. Flushing shall achieve a velocity of at least 2.5 feet per second. The Contractor shall install temporary strainers, temporarily disconnect equipment or take other appropriate measures to protect equipment while cleaning piping. Cleaning shall be completed after any repairs.
B. Disinfect all potable water mains and interconnected piping after testing and before being placed into service to ensure their bacteriological safety. Disinfection shall be accomplished under the supervision of the Contractor by a person skilled and experienced in the operation of water systems.
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C. Mains:
1. Standard: AWWA C651 as amended herein.
2. Forms of Chlorine: Sodium hypochlorite or calcium hypochlorite.
3. Method: Continuous-Feed.
D. Small Pipelines (less than 3-inch):
1. Preparation: Provide the system with a 1-inch minimum service cock or valve or other means to inject chlorine solution at a point within 2 or 3 feet of its junction with the supply source. When system is complete, thoroughly flush it by fully opening every outlet until clear water flows from all of them.
2. Disinfecting Agent: Sodium hypochlorite or calcium hypochlorite in sufficient quantities to produce chlorine concentration of at least 50 parts per million in the system. 15050-15
3. Disinfecting Procedure:
a. Connect a hand-operated pump, or other means of injecting the disinfecting agent, to 1- inch minimum service cock or valve or other injection device. Pump must provide a pressure greater than that of supply of system.
b. With system completely full of water and supply valve open, proceed to adjust every outlet of system so that a trickle of water flows from each. c. Inject disinfectant slowly and continuously at an even rate, not in slugs, until a test at each outlet shows a free chlorine residual concentration of at least 50 parts per million. d. Close all outlets and valves, including valve connecting to supply line and 1-inch minimum service cock on solution injection connection. Maintain condition for 24 hours.
After 24 hours, test for residual chlorine at each outlet. The free residual chlorine concentration indicated should be not less than 10 ppm. If the indicated free chlorine concentration is less than 10 ppm, the disinfection procedure must be repeated until an approved result is obtained.
4. When the above procedure has been completed to the satisfaction of the Engineer, flush out entire system with fresh water until tests at all outlets show a residual of not more than 0.5 ppm.
E. Chlorine Residual Testing: AWWA C651, Appendix A, DPD Drop Dilution Method, except where otherwise specified.
F. Bacteriological Analyses of Water: After the completion of disinfecting procedure, including the final flushing as described heretofore, obtain water samples from this system for bacteriological analyses. See paragraph 1.04 of this Section. Requirements for satisfactory disinfection of water supply are that bacteriological analyses (Heterotrophic plate count) indicate that water samples are negative for coliformnerogenes organisms, and that total plate count is less than 100 bacteria per cubic centimeter. If bacteriological analyses do not satisfy the above requirements, then disinfection procedure must be repeated until these requirements are met, at no cost to the Owner.
G. Disposal of Disinfection Solution: Dechlorinate, if necessary, and dispose of disinfection solution in accordance with applicable regulations. Take care to assure that chlorinated water is not spilled in drains.
3.08 METHOD OF MEASUREMENT
Relocated Recycled Water Line shall be measured in lump of water line furnished and installed, completed, and approved and only for the length as indicated on the plans or as directed by the Engineer.
3.09 BASIS OF PAYMENT
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Item P-640 Piping, Fittings, and Appurtenances 440
Payment for water line installation shall be made at the unit price bid per lump sum and shall be compensation in full for the completion of the water line including all labor, materials, equipment, and all incidentals necessary to perform the work.
Payment will be made under:
Item P-640-4.1 Recycled Water Relocation — per Lump Sum
END OF ITEM P-640
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Item P-640 Piping, Fittings, and Appurtenances 441
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Item F-160 Wire Fence with Wood Posts (Class A and B Fences) 442 Part 10 – Fencing
Item F-160 Wire Fence with Wood Posts (Class A and B Fences)
NOT USED
END OF ITEM F-160
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Item F-160 Wire Fence with Wood Posts (Class A and B Fences) 443 Page Intentionally Blank
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Item F-161 Wire Fence with Steel Posts (Class C and D Fence) 444 Item F-161 Wire Fence with Steel Posts (Class C and D Fence)
NOT USED
END OF ITEM F-161
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Item F-161 Wire Fence with Steel Posts (Class C and D Fence) 445 Page Intentionally Blank
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Item F-162 Chain-Link Fence 446
Item F-162 Chain-Link Fence
NOT USED
END OF ITEM F-162
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Item F-162 Chain-Link Fence 447
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Item F-163 Wildlife Deterrent Fence Skirt 448
Item F-163 Wildlife Deterrent Fence Skirt
NOT USED
END OF ITEM F-163
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Item F-163 Wildlife Deterrent Fence Skirt 449
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Item F-164 Wildlife Exclusion Fence 450
Item F-164 Wildlife Exclusion Fence
REFERENCES
END OF ITEM F-164
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Item F-164 Wildlife Exclusion Fence 451
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Item D-701 Pipe for Storm Drains and Culverts 452
Part 11 – Drainage
Item D-701 Pipe for Storm Drains and Culverts
DESCRIPTION
701-1.1 This item shall consist of the construction of pipe culverts and storm drains in accordance with these specifications and in reasonably close conformity with the lines and grades shown on the plans.
MATERIALS
701-2.1 Materials shall meet the requirements shown on the plans and specified below. Underground piping and components used in drainage systems for terminal and aircraft fueling ramp drainage shall be noncombustible and inert to fuel in accordance with National Fire Protection Association (NFPA) 415. 701-2.2 Pipe. The pipe shall be of the type called for on the plans or in the proposal and shall be in accordance with the following appropriate requirements:
AASHTO M294 Standard Specification for Corrugated Polyethylene Pipe, 300- to 1500- mm (12- to 60-in.) Diameter
ASTM C76 Standard Specification for Reinforced Concrete Culvert, Storm Drain, and Sewer Pipe
701-2.3 Concrete. Concrete for pipe cradles shall have a minimum compressive strength of 2000 psi (13.8 MPa) at 28 days and conform to the requirements of ASTM C94. 701-2.4 Rubber gaskets. Rubber gaskets for rigid pipe shall conform to the requirements of ASTM C443. Rubber gaskets for PVC pipe, polyethylene, and polypropylene pipe shall conform to the requirements of ASTM F477. Rubber gaskets for zinc-coated steel pipe and precoated galvanized pipe shall conform to the requirements of ASTM D1056, for the “RE” closed cell grades. Rubber gaskets for steel reinforced thermoplastic ribbed pipe shall conform to the requirements of ASTM F477. 701-2.5 Joint mortar. Not used.
701-2.6 Joint fillers. Not used.
701-2.7 Plastic gaskets. Not used.
701-2.8. Controlled low-strength material (CLSM). Controlled low-strength material shall conform to the requirements of Item P-153. When CLSM is used, all joints shall have gaskets. 701-2.9 Precast box culverts. Manufactured in accordance with and conforming to ASTM C1433. 701-2.10 Precast concrete pipe. Precast concrete structures shall be furnished by a plant meeting National Precast Concrete Association Plant Certification Program or American Concrete Pipe Association QCast Plant Certification program.
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Item D-701 Pipe for Storm Drains and Culverts 453
CONSTRUCTION METHODS
701-3.1 Excavation. The width of the pipe trench shall be sufficient to permit satisfactory jointing of the pipe and thorough tamping of the bedding material under and around the pipe, but it shall not be less than the external diameter of the pipe plus 12 inches (300 mm) on each side. The trench walls shall be approximately vertical.
The Contractor shall comply with all current federal, state and local rules and regulations governing the safety of men and materials during the excavation, installation and backfilling operations. Specifically, the Contractor shall observe that all requirements of the Occupational Safety and Health Administration (OSHA) relating to excavations, trenching and shoring are strictly adhered to. The width of the trench shall be sufficient to permit satisfactorily jointing of the pipe and thorough compaction of the bedding material under the pipe and backfill material around the pipe, but it shall not be greater than the widths shown on the plans trench detail.
Where rock, hardpan, or other unyielding material is encountered, the Contractor shall remove it from below the foundation grade for a depth of at least 8 inch (200 mm) or 1/2 inch (12 mm) for each foot of fill over the top of the pipe (whichever is greater) but for no more than three-quarters of the nominal diameter of the pipe. The excavation below grade should be filled with granular material to form a uniform foundation.
Where a firm foundation is not encountered at the grade established, due to soft, spongy, or other unstable soil, the unstable soil shall be removed and replaced with approved granular material for the full trench width. The RPR shall determine the depth of removal necessary. The granular material shall be compacted to provide adequate support for the pipe.
The excavation for pipes placed in embankment fill shall not be made until the embankment has been completed to a height above the top of the pipe as shown on the plans. 701-3.2 Bedding. The bedding surface for the pipe shall provide a foundation of uniform density to support the pipe throughout its entire length.
a. Rigid pipe. The pipe bedding shall be constructed uniformly for the full length of the pipe barrel, as required on the plans. The maximum aggregate size shall be 1 in when the bedding thickness is less than 6 inches, and 1-1/2 in when the bedding thickness is greater than 6 inches. Bedding shall be loosely placed uncompacted material under the middle third of the pipe prior to placement of the pipe. b. Flexible pipe. For flexible pipe, the bed shall be roughly shaped to fit the pipe, and a bedding blanket of sand or fine granular material shall be provided as follows:
Flexible Pipe Bedding
Pipe Corrugation Depth Minimum Bedding Depth
inch mm inch mm
1/2 12 1 25
1 25 2 50
2 50 3 75
2-1/2 60 3-1/2 90
c. Other pipe materials. For PVC, polyethylene, polypropylene, or fiberglass pipe, the bedding material shall consist of coarse sands and gravels with a maximum particle size of 3/4 inches (19 mm).
For pipes installed under paved areas, no more than 12% of the material shall pass the No. 200 (0.075 A.10.e
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Item D-701 Pipe for Storm Drains and Culverts 454
mm) sieve. For all other areas, no more than 50% of the material shall pass the No. 200 (0.075 mm) sieve.
The bedding shall have a thickness of at least 6 inches (150 mm) below the bottom of the pipe and extend up around the pipe for a depth of not less than 50% of the pipe’s vertical outside diameter. 701-3.3 Laying pipe. The pipe laying shall begin at the lowest point of the trench and proceed upgrade.
The lower segment of the pipe shall be in contact with the bedding throughout its full length. Bell or groove ends of rigid pipes and outside circumferential laps of flexible pipes shall be placed facing upgrade.
Paved or partially lined pipe shall be placed so that the longitudinal center line of the paved segment coincides with the flow line.
Elliptical and elliptically reinforced concrete pipes shall be placed with the manufacturer’s reference lines designating the top of the pipe within five degrees of a vertical plane through the longitudinal axis of the pipe.
701-3.4 Joining pipe. Joints shall be made with (1) cement mortar, (2) cement grout, (3) rubber gaskets, (4) plastic gaskets, (5) coupling bands.
Mortar joints shall be made with an excess of mortar to form a continuous bead around the outside of the pipe and shall be finished smooth on the inside. Molds or runners shall be used for grouted joints to retain the poured grout. Rubber ring gaskets shall be installed to form a flexible watertight seal. a. Concrete pipe. Concrete pipe may be either bell and spigot or tongue and groove. Pipe sections at joints shall be fully seated and the inner surfaces flush and even. Concrete pipe joints shall be sealed with rubber gaskets meeting ASTM C443.
b. Metal pipe. Metal pipe shall be firmly joined by form-fitting bands conforming to the requirements of ASTM A760 for steel pipe and AASHTO M196 for aluminum pipe. c. PVC, Polyethylene, or Polypropylene pipe. Joints for PVC, Polyethylene, or Polypropylene pipe shall conform to the requirements of ASTM D3212 when leak resistant joints are required. Joints for PVC and Polyethylene pipe shall conform to the requirements of AASHTO M304 when soil tight joints are required. Fittings for polyethylene pipe shall conform to the requirements of AASHTO M252 or ASTM M294. Fittings for polypropylene pipe shall conform to ASTM F2881, ASTM F2736, or ASTM F2764. d. Fiberglass pipe. Joints and fittings shall be as detailed on the plans and in accordance with the manufacturers recommendations.
701-3.5 Embedment and Overfill. Pipes shall be inspected before any fill material is placed; any pipes found to be out of alignment, unduly settled, or damaged shall be removed and re-laid or replaced at the Contractor’s expense.
701-3.5-1 Embedment Material Requirements
a. Concrete Pipe. Embedment material and compaction requirements shall be in accordance with the applicable Type of Standard Installation (Types 1, 2, 3, or 4) per ASTM C1479. If a concrete cradle or CLSM embedment material is used, it shall conform to the plan details. b. Plastic and fiberglass Pipe. Embedment material shall meet the requirements of ASTM D3282, A-1, A-2-4, A-2-5, or A-3. Embedment material shall be free of organic material, stones larger than 1.5 inches in the greatest dimension, or frozen lumps. Embedment material shall extend to 12 inches above the top of the pipe.
c. Metal Pipe. Embedment material shall be granular as specified in the contract document and specifications, and shall be free of organic material, rock fragments larger than 1.5 inches in the greatest dimension and frozen lumps. As a minimum, backfill materials shall meet the requirements of ASTM D3282, A-1, A-2, or A-3. Embedment material shall extend to 12 inches above the top of the pipe.
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701-3.5-2 Placement of Embedment Material
The embedment material shall be compacted in layers not exceeding 6 inches (150 mm) on each side of the pipe and shall be brought up one foot (30 cm) above the top of the pipe or to natural ground level, whichever is greater. Thoroughly compact the embedment material under the haunches of the pipe without displacing the pipe. Material shall be brought up evenly on each side of the pipe for the full length of the pipe.
When the top of the pipe is above the top of the trench, the embedment material shall be compacted in layers not exceeding 6 inches (150 mm) and shall be brought up evenly on each side of the pipe to one foot (30 cm) above the top of the pipe. All embedment material shall be compacted to a density required under Item P-152.
Concrete cradles and flowable fills, such as controlled low strength material (CLSM) or controlled density fill (CDF), may be used for embedment provided adequate flotation resistance can be achieved by restraints, weighing, or placement technique.
It shall be the Contractor’s responsibility to protect installed pipes and culverts from damage due to construction equipment operations. The Contractor shall be responsible for installation of any extra strutting or backfill required to protect pipes from the construction equipment. 701-3.6 Overfill
Pipes shall be inspected before any overfill is in place. Any pipes found to be out of alignment, unduly settled, or damaged shall be removed and relaid or replaced at the Contractor’s expense. Evaluation of any damage to RCP shall be evaluated based on AASHTO R73.
Overfill material shall be place and compacted in layers as required to achieve compaction to at least 95 percent standard proctor per [ ASTM D698 ] [ ASTM D1557 ]. The soil shall contain no debris, organic matter, frozen material, or stones with a diameter greater than one half the thickness of the compacted layers being placed.
701-3.7 Inspection Requirements
An initial post installation inspection shall be performed by the RPR no sooner than 30 days after completion of installation and final backfill. Clean or flush all lines prior to inspection.
Use a camera with lighting suitable to allow a clear picture of the entire periphery of the pipe interior.
Center the camera in the pipe both vertically and horizontally and be able to pan and tilt to a 90 degree angle with the axis of the pipe rotating 360 degrees. Use equipment to move the camera through the pipe that will not obstruct the camera’s view or interfere with proper documentation of the pipe’s condition.
The video image shall be clear, focused, and relatively free from roll, static, or other image distortion qualities that would prevent the reviewer from evaluating the condition of the pipe.
Incorporate specific inspection requirements for the various types of pipes beneath the general inspection requirements.
Reinforced concrete pipe shall be inspected, evaluated, and reported on in accordance with ASTM C1840, “Standard Practice for Inspection and Acceptance of Installed Reinforced Concrete Culvert, Storm Drain, and Storm Sewer Pipe.” Any issues reported shall include still photo and video documentation. The zoom ratio shall be provided for all still or video images that document any issues of concern by the inspection firm.
Flexible pipes shall be inspected for rips, tears, joint separations, soil migration, cracks, localized buckling, settlement, alignment, and deflection. Determine whether the allowable deflection has been exceeded by use of a laser profiler for internal pipe diameters of 48 inches or less, or direct measurement for internal pipe diameters greater than 48 inches. Laser profile equipment shall utilize low barrel A.10.e
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distortion video equipment. Deflection of installed pipe shall not exceed the limits provided in the table below, as a percentage of the average inside diameter of the pipe.
Maximum Allowable Pipe Deflection
Type of Pipe Maximum Allowable Deflection (%)
Corrugated Metal Pipe 5
Concrete Lined CMP 3
Thermoplastic Pipe 5
Fiberglass 5
If deflection readings in excess of the allowable deflection are obtained, remove the pipe with excessive deflection and replace with new pipe. Isolated areas may exceed allowable by 2.5% with concurrence of RPR. Repair or replace any pipe with cracks exhibiting displacement across the crack, bulges, creases, tears, spalls, or delaminations. The report for flexible pipe shall include as a minimum, the deflection results and final post installation inspection report. The inspection report shall include: a copy of all video taken, pipe location identification, equipment used for inspection, inspector name, deviation from design line and grade, and inspector’s notes.
METHOD OF MEASUREMENT
701-4.1 The length of pipe shall be measured in linear feet (m) of pipe in place, completed, and accepted.
It shall be measured along the centerline of the pipe from end or inside face of structure to the end or inside face of structure, whichever is applicable. Each class, type and size of pipe shall be measured separately. All fittings shall be included in the footage as typical pipe sections in the pipe being measured.
BASIS OF PAYMENT
701-5.0 These prices shall fully compensate the Contractor for furnishing all materials and for all preparation, excavation, and installation of these materials; and for all labor, equipment, tools, and incidentals necessary to complete the item.
Payment will be made under:
Item 701-5.1 15- inch HDPE per linear foot (meter)
Item 701-5.2 12- inch RCP (Class V) per linear foot (meter) Item 701-5.5 Recycled Water Relocation per linear foot (meter)
REFERENCES
The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.
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American Association of State Highway and Transportation Officials (AASHTO) AASHTO M167 Standard Specification for Corrugated Steel Structural Plate, Zinc- Coated, for Field-Bolted Pipe, Pipe-Arches, and Arches
AASHTO M190 Standard Specification for Bituminous-Coated Corrugated Metal Culvert Pipe and Pipe Arches
AASHTO M196 Standard Specification for Corrugated Aluminum Pipe for Sewers and Drains
AASHTO M219 Standard Specification for Corrugated Aluminum Alloy Structural Plate for Field-Bolted Pipe, Pipe-Arches, and Arches
AASHTO M243 Standard Specification for Field Applied Coating of Corrugated Metal Structural Plate for Pipe, Pipe-Arches, and Arches
AASHTO M252 Standard Specification for Corrugated Polyethylene Drainage Pipe AASHTO M294 Standard Specification for Corrugated Polyethylene Pipe, 300- to 1500- mm (12- to 60-in.) Diameter
AASHTO M304 Standard Specification for Poly (Vinyl Chloride) (PVC) Profile Wall Drain Pipe and Fittings Based on Controlled Inside Diameter AASHTO MP20 Standard Specification for Steel Reinforced Polyethylene (PE) Ribbed Pipe, 300- to 900-mm (12- to 36-in.) Diameter
ASTM International (ASTM)
ASTM A760 Standard Specification for Corrugated Steel Pipe, Metallic Coated for Sewers and Drains
ASTM A761 Standard Specification for Corrugated Steel Structural Plate, Zinc Coated, for Field-Bolted Pipe, Pipe-Arches, and Arches
ASTM A762 Standard Specification for Corrugated Steel Pipe, Polymer Precoated for Sewers and Drains
ASTM A849 Standard Specification for Post-Applied Coatings, Pavings, and Linings for Corrugated Steel Sewer and Drainage Pipe
ASTM B745 Standard Specification for Corrugated Aluminum Pipe for Sewers and Drains
ASTM C14 Standard Specification for Nonreinforced Concrete Sewer, Storm Drain, and Culvert Pipe
ASTM C76 Standard Specification for Reinforced Concrete Culvert, Storm Drain, and Sewer Pipe
ASTM C94 Standard Specification for Ready Mixed Concrete ASTM C144 Standard Specification for Aggregate for Masonry Mortar ASTM C150 Standard Specification for Portland Cement
ASTM C443 Standard Specification for Joints for Concrete Pipe and Manholes, Using Rubber Gaskets
ASTM C506 Standard Specification for Reinforced Concrete Arch Culvert, Storm Drain, and Sewer Pipe
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Item D-701 Pipe for Storm Drains and Culverts 458
ASTM C507 Standard Specification for Reinforced Concrete Elliptical Culvert, Storm Drain and Sewer Pipe
ASTM C655 Standard Specification for Reinforced Concrete D-Load Culvert, Storm Drain and Sewer Pipe
ASTM C990 Standard Specification for Joints for Concrete Pipe, Manholes, and Precast Box Sections Using Preformed Flexible Joint Sealants ASTM C1433 Standard Specification for Precast Reinforced Concrete Monolithic Box Sections for Culverts, Storm Drains, and Sewers
ASTM D1056 Standard Specification for Flexible Cellular Materials Sponge or Expanded Rubber
ASTM D3034 Standard Specification for Type PSM Poly (Vinyl Chloride) (PVC) Sewer Pipe and Fittings
ASTM D3212 Standard Specification for Joints for Drain and Sewer Plastic Pipes Using Flexible Elastomeric Seals
ASTM D3262 Standard Specification for "Fiberglass" (Glass-Fiber Reinforced Thermosetting Resin) Sewer Pipe
ASTM D3282 Standard Practice for Classification of Soils and Soil-Aggregate Mixtures for Highway Construction Purposes
ASTM D4161 Standard Specification for "Fiberglass" (Glass-Fiber Reinforced Thermosetting Resin) Pipe Joints Using Flexible Elastomeric Seals ASTM D6690 Standard Specification for Joint and Crack Sealants, Hot Applied, for Concrete and Asphalt Pavements
ASTM F477 Standard Specification for Elastomeric Seals (Gaskets) for Joining Plastic Pipe
ASTM F667 Standard Specification for 3 through 24 in. Corrugated Polyethylene Pipe and Fittings
ASTM F714 Standard Specification for Polyethylene (PE) Plastic Pipe (DR PR) Based on Outside Diameter
ASTM F794 Standard Specification for Poly (Vinyl Chloride) (PVC) Profile Gravity Sewer Pipe & Fittings Based on Controlled Inside Diameter ASTM F894 Standard Specification for Polyethylene (PE) Large Diameter Profile Wall Sewer and Drain Pipe
ASTM F949 Standard Specification for Poly (Vinyl Chloride) (PVC) Corrugated Sewer Pipe with a Smooth Interior and Fittings
ASTM F2435 Standard Specification for Steel Reinforced Polyethylene (PE) Corrugated Pipe
ASTM F2562 Specification for Steel Reinforced Thermoplastic Ribbed Pipe and Fittings for Non-Pressure Drainage and Sewerage
ASTM F2736 Standard Specification for 6 to 30 in. (152 to 762 mm) Polypropylene (PP) Corrugated Single Wall Pipe and Double Wall Pipe
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ASTM F2764 Standard Specification for 30 to 60 in. (750 to 1500 mm) Polypropylene (PP) Triple Wall Pipe and Fittings for Non-Pressure Sanitary Sewer Applications
ASTM F2881 Standard Specification for 12 to 60 in. (300 to 1500 mm) Polypropylene (PP) Dual Wall Pipe and Fittings for Non-Pressure Storm Sewer Applications
National Fire Protection Association (NFPA)
NFPA 415 Standard on Airport Terminal Buildings, Fueling Ramp Drainage, and Loading Walkways
END ITEM D-701
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Item D-702 Slotted Drains
NOT USED
END OF ITEM D-702
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Item D-705 Pipe Underdrains for Airports 462
Item D-705 Pipe Underdrains for Airports
DESCRIPTION
705-1.1 This item shall consist of the construction of bioretention in accordance with these specifications and in reasonably close conformity with the lines and grades shown on the plans.
MATERIALS
705-2.1 General. Materials shall meet the requirements shown on the plans and specified below. 705-2.2 Pipe. The pipe shall be of the type called for on the plans or in the proposal and shall be in accordance with the following appropriate requirements.
ASTM F758 Standard Specification for Smooth-Wall Poly (Vinyl Chloride) (PVC) Plastic Underdrain Systems for Highway, Airport, and Similar Drainage 705-2.3 Joint mortar. Pipe joint mortar shall consist of one part by volume of Portland cement and two parts sand. The Portland cement shall conform to the requirements of ASTM C150, Type I. The sand shall conform to the requirements of ASTM C144.
705-2.4 Elastomeric seals. Elastomeric seals shall conform to the requirements of ASTM F477. 705-2.5 Porous backfill. Porous backfill shall be free of clay, humus, or other objectionable matter, and shall conform to the gradation in Table 1 when tested in accordance with ASTM C136.
Table 1. Gradation of Porous Backfill
Sieve Designation (square openings)
Percentage by Weight Passing Sieves
Porous Material No. 2
1-1/2 inch (37.5 mm) 100
1 inch (25.0 mm) 90 - 100
3/8 inch (9.5 mm) 25 - 60
No. 4 (4.75 mm) 5 - 40
No. 8 (2.36 mm) 0 - 20
No. 16 (1.18 mm) --
No. 50 (300 µm) --
No. 100 (150 µm) --
When two courses of porous backfill are specified in the plans, the finer of the materials shall conform to particle size tabulated herein for porous material No. 1. The coarser granular material shall meet the gradation given in the tabulation for porous material No. 2. 705-2.6 Granular material. Granular material used for backfilling shall conform to the requirements of ASTM D2321 for Class IA, IB, or II materials.
705-2.7 Filter fabric. The filter fabric shall conform to the requirements of AASHTO M288 Class 2 or equivalent.
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Table 2. Fabric Properties
Fabric Property Test Method Test Requirement
Grab Tensile Strength, lbs ASTM D4632 125 min
Grab Tensile Elongation % ASTM D4632 50 min
Burst Strength, psi ASTM D3785 125 min
Trapezoid Tear Strength, lbs ASTM D4533 55 min
Puncture Strength, lbs ASTM D4833 40 min
Abrasion, lbs ASTM D4886 15 max loss
Equivalent Opening Size ASTM D4751 70-100
Permittivity sec-1 ASTM D4491 0.80
Accelerated Weathering (UV Stability)
(Strength Retained - %)
ASTM D4355
*(500 hrs exposure) 70
705-2.8 Controlled low-strength material (CLSM). Controlled low-strength material shall conform to the requirements of Item P-153. All joints shall have elastomeric seals.
CONSTRUCTION METHODS
705-3.1 Equipment. All equipment required for the construction of pipe underdrains shall be on the project, in good working condition, and approved by the RPR before construction is permitted to start. 705-3.2 Excavation. The width of the pipe trench shall be sufficient to permit satisfactory jointing of the pipe and thorough tamping of the bedding material under and around the pipe, but shall not be less than the external diameter of the pipe plus 6 inches (150 mm) on each side of the pipe. The trench walls shall be approximately vertical.
Where rock, hardpan, or other unyielding material is encountered, it shall be removed below the foundation grade for a depth of at least 4 inches (100 mm). The excavation below grade shall be backfilled with selected fine compressible material, such as silty clay or loam, and lightly compacted in layers not over 6 inches (150 mm) in uncompacted depth to form a uniform but yielding foundation.
Where a firm foundation is not encountered at the grade established, due to soft, spongy, or other unstable soil, the unstable soil shall be removed and replaced with approved granular material for the full trench width. The RPR shall determine the depth of removal necessary. The granular material shall be compacted to provide adequate support for the pipe.
Excavated material not required or acceptable for backfill shall be disposed of by the Contractor as directed by the RPR. The excavation shall not be carried below the required depth; if this occurs, the trench shall be backfilled at the Contractor’s expense with material approved by the RPR and compacted to the density of the surrounding material.
The pipe bedding shall be constructed uniformly over the full length of the pipe barrel, as required on the plans. The maximum aggregate size shall be 1 inch when the bedding thickness is less than 6 inches, and 1-1/2 inch when the bedding thickness is greater than 6 inches. Bedding shall be loosely placed, uncompacted material under the middle third of the pipe prior to placement of the pipe.
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The Contractor shall do trench bracing, sheathing, or shoring necessary to perform and protect the excavation as required for safety and conformance to federal, state and local laws. Unless otherwise provided, the bracing, sheathing, or shoring shall be removed by the Contractor after the backfill has reached at least 12 inches (300 mm) over the top of the pipe. The sheathing or shoring shall be pulled as the granular backfill is placed and compacted to avoid any unfilled spaces between the trench wall and the backfill material. The cost of bracing, sheathing, or shoring, and the removal of same, shall be included in the unit price bid per foot (meter) for the pipe.
705-3.3 Laying and installing pipe.
a. Concrete pipe. The laying of the pipe in the finished trench shall be started at the lowest point and proceed upgrade. When bell and spigot pipe is used, the bells shall be laid upgrade. If tongue and groove pipe is used, the groove end shall be laid upgrade. Holes in perforated pipe shall be placed down, unless otherwise shown on the plans. The pipe shall be firmly and accurately set to line and grade so that the invert will be smooth and uniform. Pipe shall not be laid on frozen ground.
Pipe which is not true in alignment, or which shows any settlement after laying, shall be taken up and re-laid by the Contractor at no additional expense. Making adjustments in grade by exerting force on the barrel of the pipe with excavating equipment, by lifting and dropping the pipe, or by lifting the pipe and packing bedding material under it shall be prohibited. If the installed pipe section is not to grade, the pipe section shall be completely removed, the grade corrected, and the pipe rejoined.” b. Metal pipe. The metal pipe shall be laid with the separate sections joined firmly together with bands, with outside laps of circumferential joints pointing upgrade, and with longitudinal laps on the sides. Any metal in the pipe or bands that is not protected thoroughly by galvanizing shall be coated with a suitable asphaltum paint.
During installation, the asphalt-protected pipe shall be handled without damaging the asphalt coating.
Any breaks in the bitumen or treatment of the pipe shall be refilled with the type and kind of bitumen used in coating the pipe originally.
c. PVC, fiberglass, or polyethylene pipe. PVC or polyethylene pipe shall be installed in accordance with the requirements of ASTM D2321. Perforations shall meet the requirements of AASHTO M252 or AASHTO M294 Class 2, unless otherwise indicated on the plans. The pipe shall be laid accurately to line and grade. Fiberglass per ASTM D3839 Standard Guide for Underground Installation of "Fiberglass" (Glass-Fiber Reinforced Thermosetting-Resin) Pipe.
d. All types of pipe. The upgrade end of pipelines, not terminating in a structure, shall be plugged or capped as approved by the RPR.
Unless otherwise shown on the plans, a 4-inch (100 mm) bed of granular backfill material shall be spread in the bottom of the trench throughout the entire length under all perforated pipe underdrains.
Pipe outlets for the underdrains shall be constructed when required or shown on the plans. The pipe shall be laid with tight-fitting joints. Porous backfill is not required around or over pipe outlets for underdrains. All connections to other drainage pipes or structures shall be made as required and in a satisfactory manner. If connections are not made to other pipes or structures, the outlets shall be protected and constructed as shown on the plans.
e. Filter fabric. The filter fabric shall be installed in accordance with the manufacturer’s recommendations, or in accordance with the AASHTO M288 Appendix, unless otherwise shown on the plans.
705-3.4 Mortar. The mortar shall be of the desired consistency for caulking and filling the joints of the pipe and for making connections to other pipes or to structures. Mortar that is not used within 45 minutes after water has been added shall be discarded. Retempering of mortar shall not be permitted.
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Item D-705 Pipe Underdrains for Airports 465
705-3.5 Joints in concrete pipe. When open or partly open joints are required or specified, they shall be constructed as indicated on the plans. The pipe shall be laid with the ends fitted together as designed. If bell and spigot pipe is used, mortar shall be placed along the inside bottom quarter of the bell to center the following section of pipe.
The open or partly open joints shall be surrounded with granular material meeting requirements of porous backfill No. 2 in Table 1 or as indicated on the plans. This backfill shall be placed so its thickness will be not less than 3 inches (75 mm) nor more than 6 inches (150 mm), unless otherwise shown on the plans.
When the original material excavated from the trench is impervious, commercial concrete sand or granular material meeting requirements of porous backfill No. 1 shall surround porous backfill No. 2 (Table 1), as shown on the plans or as directed by the RPR.
When the original material excavated from the trench is pervious and suitable, it may be used as backfill in lieu of porous backfill No. 1, when indicated on the plans or as directed by the RPR. 705-3.6 Embedment and Backfill
a. Earth. All trenches and excavations shall be backfilled soon after the pipes are installed, unless additional protection of the pipe is directed. The embedment material shall be select material from excavation or borrow and shall be approved by the RPR. The select material shall be placed on each side of the pipe out to a distance of the nominal pipe diameter and one foot (30 cm) over the top of the pipe and shall be readily compacted. It shall not contain stones 3 inches (75 mm) or larger in size, frozen lumps, chunks of highly plastic clay, or any other material that is objectionable to the RPR. The material shall be moistened or dried, as required to aid compaction. Placement of the embedment material shall not cause displacement of the pipe. Thorough compaction under the haunches and along the sides to the top of the pipe shall be obtained.
The embedment material shall be placed in loose layers not exceeding 6 inches (150 mm) in depth under and around the pipe. Backfill material over the pipe shall be placed in lifts not exceeding 8 inches (200 mm). Successive layers shall be added and thoroughly compacted by hand and pneumatic tampers, approved by the RPR, until the trench is completely filled and brought to the planned elevation.
Embedment and backfilling shall be done to avoid damaging top or side of the pipe.
In embankments and other unpaved areas, the backfill shall be compacted per Item P-152 to the density required for embankments in unpaved areas. Under paved areas, the subgrade and any backfill shall be compacted per Item P-152 to the density required for embankments for paved areas. b. Granular backfill. When granular backfill is required, placement in the trench and about the pipe shall be as shown on the plans. The granular backfill shall not contain an excessive amount of foreign matter, nor shall soil from the sides of the trench or from the soil excavated from the trench be allowed to filter into the granular backfill. When required by the RPR, a template shall be used to properly place and separate the two sizes of backfill. The backfill shall be placed in loose layers not exceeding 6 inches (150 mm) in depth. The granular backfill shall be compacted by hand and pneumatic tampers to the requirements as given for embankment. Backfilling shall be done to avoid damaging top or side pressure on the pipe. The granular backfill shall extend to the elevation of the trench or as shown on the plans.
When perforated pipe is specified, granular backfill material shall be placed along the full length of the pipe. The position of the granular material shall be as shown on the plans. If the original material excavated from the trench is pervious and suitable, it shall be used in lieu of porous backfill No. 1.
If porous backfill is placed in paved or adjacent to paved areas before grading or subgrade operations is completed, the backfill material shall be placed immediately after laying the pipe. The depth of the granular backfill shall be not less than 12 inches (300 mm), measured from the top of the underdrain.
During subsequent construction operations, a minimum depth of 12 inches (300 mm) of backfill shall be maintained over the underdrains. When the underdrains are to be completed, any unsuitable material shall A.10.e
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Item D-705 Pipe Underdrains for Airports 466
be removed exposing the porous backfill. Porous backfill containing objectionable material shall be removed and replaced with suitable material. The cost of removing and replacing any unsuitable material shall be at the Contractor’s expense.
If a granular subbase blanket course is used which extends several feet beyond the edge of paving to the outside edge of the underdrain trench, the granular backfill material over the underdrains shall be placed in the trench up to an elevation of 2 inches (50 mm) above the bottom surface of the granular subbase blanket course. Immediately prior to the placing of the granular subbase blanket course, the Contractor shall blade this excess trench backfill from the top of the trench onto the adjacent subgrade where it can be incorporated into the granular subbase blanket course. Any unsuitable material that remains over the underdrain trench shall be removed and replaced. The subbase material shall be placed to provide clean contact between the subbase material and the underdrain granular backfill material for the full width of the underdrain trench.
c. Controlled low-strength material (CLSM). Controlled low-strength material shall conform to the requirements of Item P-153.
705-3.7 Flexible Pipe Ring Deflection. Not used.
705-3.8Connections. When the plans call for connections to existing or proposed pipe or structures, these connections shall be watertight and made to obtain a smooth uniform flow line throughout the drainage system.
705-3.9 Cleaning and restoration of site. After the backfill is completed, the Contractor shall dispose of all surplus material, soil, and rubbish from the site. Surplus soil may be deposited in embankments, shoulders, or as directed by the RPR. Except for paved areas of the airport, the Contractor shall restore all disturbed areas to their original condition.
METHOD OF MEASUREMENT
705-4.1 The area of bioretention shall be the number of square feet (square meters) of bioretention in place, completed, and approved. The several classes, types, and pipe sizes shall not be measured separately. All fittings shall be included in the square footage being measured.
BASIS OF PAYMENT
705-5.1 Payment will be made at the contract unit price per square foot (square meter) for bioretention. 705-5.2 Porous backfill.
These prices shall be full compensation for furnishing all materials and for all preparation, excavation, and installation of these materials, and for all labor, equipment, tools, and incidentals necessary to complete the item.
Payment will be made under:
Item D-705-5.1 Bioretention - per square foot (square meter)
REFERENCES
The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.
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Item D-705 Pipe Underdrains for Airports 467
ASTM International (ASTM)
ASTM A760 Standard Specification for Corrugated Steel Pipe, Metallic Coated for Sewers and Drains
ASTM A762 Standard Specification for Corrugated Steel Pipe, Polymer Precoated for Sewers and Drains
ASTM C136 Standard Test Method for Sieve or Screen Analysis of Fine and Coarse Aggregates
ASTM C144 Standard Specification for Aggregate for Masonry Mortar ASTM C150 Standard Specification for Portland Cement
ASTM C444 Standard Specification for Perforated Concrete Pipe ASTM C654 Standard Specification for Porous Concrete Pipe ASTM D2321 Standard Practice for Underground Installation of Thermoplastic Pipe for Sewers and Other Gravity-Flow Applications
ASTM D3262 Standard Specification for "Fiberglass" (Glass-Fiber Reinforced Thermosetting Resin) Sewer Pipe
ASTM D4161 Standard Specification for "Fiberglass" (Glass-Fiber Reinforced Thermosetting Resin) Pipe Joints Using Flexible Elastomeric Seals ASTM F477 Standard Specification for Elastomeric Seals (Gaskets) for Joining Plastic Pipe
ASTM F758 Standard Specification for Smooth Wall Poly (Vinyl Chloride) (PVC) Plastic Underdrain Systems for Highway, Airport, and Similar Drainage ASTM F794 Standard Specification for Poly (Vinyl Chloride) (PVC) Profile Gravity Sewer Pipe & Fittings Based on Controlled Inside Diameter ASTM F949 Standard Specification for Poly (Vinyl Chloride) (PVC) Corrugated Sewer Pipe with a Smooth Interior and Fittings
ASTM F2562 Specification for Steel Reinforced Thermoplastic Ribbed Pipe and Fittings for Non-Pressure Drainage and Sewerage
American Association of State Highway and Transportation Officials (AASHTO) AASHTO M190 Standard Specification for Bituminous - Coated Corrugated Metal Culvert Pipe and Pipe Arches
AASHTO M196 Standard Specification for Corrugated Aluminum Pipe for Sewers and Drains
AASHTO M252 Standard Specification for Corrugated Polyethylene Drainage Pipe AASHTO M288 Standard Specification for Geotextile Specification for Highway Applications
AASHTO M294 Standard Specification for Corrugated Polyethylene Pipe, 300- to 1500- mm (12- to 60-in.) Diameter
AASHTO M304 Standard Specification for Poly (Vinyl Chloride) (PVC) Profile Wall Drain Pipe and Fittings Based on Controlled Inside Diameter A.10.e
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Item D-705 Pipe Underdrains for Airports 468
AASHTO MP20 Standard Specification for Steel-Reinforced Polyethylene (PE) Ribbed Pipe, 300- to 900-mm (12- to 36-in.) diameter
AASHTO Standard Specifications for Highway Bridges
END OF ITEM D-705
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Item D-751 Manholes, Catch Basins, Inlets and Inspection Holes 469 Item D-751 Manholes, Catch Basins, Inlets and Inspection Holes
DESCRIPTION
751-1.1 This item shall consist of construction of manholes, catch basins, inlets, and inspection holes, in accordance with these specifications, at the specified locations and conforming to the lines, grades, and dimensions shown on the plans or required by the RPR.
MATERIALS
751-2.1 Brick. The brick shall conform to the requirements of ASTM C32, Grade MS. 751-2.2 Mortar. Mortar shall consist of one part Portland cement and two parts sand. The cement shall conform to the requirements of ASTM C150, Type I. The sand shall conform to the requirements of ASTM C144.
751-2.3 Concrete. Plain and reinforced concrete used in structures, connections of pipes with structures, and the support of structures or frames shall conform to the requirements of Item P-610. 751-2.4 Precast concrete pipe manhole rings. Precast concrete pipe manhole rings shall conform to the requirements of ASTM C478. Unless otherwise specified, the risers and offset cone sections shall have an inside diameter of not less than 36 inches (90 cm) nor more than 48 inches (120 cm). There shall be a gasket between individual sections and sections cemented together with mortar on the inside of the manhole. Gaskets shall conform to the requirements of ASTM C443. 751-2.5 Corrugated metal. Corrugated metal shall conform to the requirements of American Association of State Highway and Transportation Officials (AASHTO) M36. 751-2.6 Frames, covers, and grates. The castings shall conform to one of the following requirements:
a. ASTM A48, Class 35B: Gray iron castings
b. ASTM A47: Malleable iron castings
c. ASTM A27: Steel castings
d. ASTM A283, Grade D: Structural steel for grates and frames e. ASTM A536, Grade 65-45-12: Ductile iron castings
f. ASTM A897: Austempered ductile iron castings
All castings or structural steel units shall conform to the dimensions shown on the plans and shall be designed to support the loadings, aircraft gear configuration and/or direct loading, specified.
Each frame and cover or grate unit shall be provided with fastening members to prevent it from being dislodged by traffic but which will allow easy removal for access to the structure.
All castings shall be thoroughly cleaned. After fabrication, structural steel units shall be galvanized to meet the requirements of ASTM A123.
751-2.7 Steps. The steps or ladder bars shall be gray or malleable cast iron or galvanized steel. The steps shall be the size, length, and shape shown on the plans and those steps that are not galvanized shall be given a coat of asphalt paint, when directed.
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Item D-751 Manholes, Catch Basins, Inlets and Inspection Holes 470 751-2.8 Precast inlet structures. Manufactured in accordance with and conforming to ASTM C913.
CONSTRUCTION METHODS
751-3.1 Unclassified excavation.
a. The Contractor shall excavate for structures and footings to the lines and grades or elevations, shown on the plans. The excavation shall be of sufficient size to permit the placing of the full width and length of the structure or structure footings shown. The elevations of the bottoms of footings, as shown on the plans, shall be considered as approximately only; and the RPR may direct, in writing, changes in dimensions or elevations of footings necessary for a satisfactory foundation. b. Boulders, logs, or any other objectionable material encountered in excavation shall be removed.
All rock or other hard foundation material shall be cleaned of all loose material and cut to a firm surface either level, stepped, or serrated, as directed by the RPR. All seams or crevices shall be cleaned out and grouted. All loose and disintegrated rock and thin strata shall be removed. Where concrete will rest on a surface other than rock, the bottom of the excavation shall not be disturbed and excavation to final grade shall not be made until immediately before the concrete or reinforcing is placed. c. The Contractor shall do all bracing, sheathing, or shoring necessary to implement and protect the excavation and the structure as required for safety or conformance to governing laws. The cost of bracing, sheathing, or shoring shall be included in the unit price bid for the structure. d. All bracing, sheathing, or shoring involved in the construction of this item shall be removed by the Contractor after the completion of the structure. Removal shall not disturb or damage finished masonry.
The cost of removal shall be included in the unit price bid for the structure. e. After excavation is completed for each structure, the Contractor shall notify the RPR. No concrete or reinforcing steel shall be placed until the RPR has approved the depth of the excavation and the character of the foundation material.
751-3.2 Brick structures.
a. Foundations. A prepared foundation shall be placed for all brick structures after the foundation excavation is completed and accepted. Unless otherwise specified, the base shall consist of reinforced concrete mixed, prepared, and placed in accordance with the requirements of Item P-610. b. Laying brick. All brick shall be clean and thoroughly wet before laying so that they will not absorb any appreciable amount of additional water at the time they are laid. All brick shall be laid in freshly made mortar. Mortar not used within 45 minutes after water has been added shall be discarded.
Retempering of mortar shall not be permitted. An ample layer of mortar shall be spread on the beds and a shallow furrow shall be made in it that can be readily closed by the laying of the brick. All bed and head joints shall be filled solid with mortar. End joints of stretchers and side or cross joints of headers shall be fully buttered with mortar and a shoved joint made to squeeze out mortar at the top of the joint. Any bricks that may be loosened after the mortar has taken its set, shall be removed, cleaned, and re-laid with fresh mortar. No broken or chipped brick shall be used in the face, and no spalls or bats shall be used except where necessary to shape around irregular openings or edges; in which case, full bricks shall be placed at ends or corners where possible, and the bats shall be used in the interior of the course. In making closures, no piece of brick shorter than the width of a whole brick shall be used; and wherever practicable, whole brick shall be used and laid as headers.
c. Joints. All joints shall be filled with mortar at every course Exterior faces shall be laid up in advance of backing. Exterior faces shall be plastered or parged with a coat of mortar not less than 3/8 inch (9 mm) thick before the backing is laid up. Prior to parging, all joints on the back of face courses shall be A.10.e
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Item D-751 Manholes, Catch Basins, Inlets and Inspection Holes 471 cut flush. Unless otherwise noted, joints shall be not less than 1/4 inch (6 mm) nor more than 1/2 inch (12 mm) wide and the selected joint width shall be maintained uniform throughout the work. d. Pointing. Face joints shall be neatly struck, using the weather-struck joint. All joints shall be finished properly as the laying of the brick progresses. When nails or line pins are used, the holes shall be immediately plugged with mortar and pointed when the nail or pin is removed. e. Cleaning. Upon completion of the work all exterior surfaces shall be thoroughly cleaned by scrubbing and washing with water. If necessary to produce satisfactory results, cleaning shall be done with a 5% solution of muriatic acid which shall then be rinsed off with liberal quantities of water. f. Curing and cold weather protection. The brick masonry shall be protected and kept moist for at least 48 hours after laying the brick. Brick masonry work or pointing shall not be done when there is frost on the brick or when the air temperature is below 50°F (10°C) unless the Contractor has, on the project ready to use, suitable covering and artificial heating devices necessary to keep the atmosphere surrounding the masonry at a temperature of not less than 60°F (16°C) for the duration of the curing period.
751-3.3 Concrete structures. Concrete structures which are to be cast-in-place within the project boundaries shall be built on prepared foundations, conforming to the dimensions and shape indicated on the plans. The construction shall conform to the requirements specified in Item P-610. Any reinforcement required shall be placed as indicated on the plans and shall be approved by the RPR before the concrete is placed.
All invert channels shall be constructed and shaped accurately to be smooth, uniform, and cause minimum resistance to flowing water. The interior bottom shall be sloped to the outlet. 751-3.4 Precast concrete structures. Precast concrete structures shall be furnished by a plant meeting National Precast Concrete Association Plant Certification Program or another RPR approved third party certification program.
Precast concrete structures shall conform to ASTM C478. Precast concrete structures shall be constructed on prepared or previously placed slab foundations conforming to the dimensions and locations shown on the plans. All precast concrete sections necessary to build a completed structure shall be furnished. The different sections shall fit together readily. Joints between precast concrete risers and tops shall be full- bedded in cement mortar and shall: (1) be smoothed to a uniform surface on both interior and exterior of the structure or (2) utilize a rubber gasket per ASTM C443. The top of the upper precast concrete section shall be suitably formed and dimensioned to receive the metal frame and cover or grate, or other cap, as required. Provision shall be made for any connections for lateral pipe, including drops and leads that may be installed in the structure. The flow lines shall be smooth, uniform, and cause minimum resistance to flow. The metal or metal encapsulated steps that are embedded or built into the side walls shall be aligned and placed in accordance to ASTM C478. When a metal ladder replaces the steps, it shall be securely fastened into position.
751-3.5 Corrugated metal structures. Corrugated metal structures shall be prefabricated. All standard or special fittings shall be furnished to provide pipe connections or branches with the correct dimensions and of sufficient length to accommodate connecting bands. The fittings shall be welded in place to the metal structures. The top of the metal structure shall be designed so that either a concrete slab or metal collar may be attached to allow the fastening of a standard metal frame and grate or cover. Steps or ladders shall be furnished as shown on the plans. Corrugated metal structures shall be constructed on prepared foundations, conforming to the dimensions and locations as shown on the plans. When indicated, the structures shall be placed on a reinforced concrete base. 751-3.6 Inlet and outlet pipes. Inlet and outlet pipes shall extend through the walls of the structures a sufficient distance beyond the outside surface to allow for connections. They shall be cut off flush with A.10.e
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Item D-751 Manholes, Catch Basins, Inlets and Inspection Holes 472 the wall on the inside surface of the structure, unless otherwise directed. For concrete or brick structures, mortar shall be placed around these pipes to form a tight, neat connection. 751-3.7 Placement and treatment of castings, frames, and fittings. All castings, frames, and fittings shall be placed in the positions indicated on the plans or as directed by the RPR, and shall be set true to line and elevation. If frames or fittings are to be set in concrete or cement mortar, all anchors or bolts shall be in place before the concrete or mortar is placed. The unit shall not be disturbed until the mortar or concrete has set.
When frames or fittings are placed on previously constructed masonry, the bearing surface of the masonry shall be brought true to line and grade and shall present an even bearing surface so the entire face or back of the unit will come in contact with the masonry. The unit shall be set in mortar beds and anchored to the masonry as indicated on the plans or as directed by the RPR. All units shall set firm and secure.
After the frames or fittings have been set in final position, the concrete or mortar shall be allowed to harden for seven (7) days before the grates or covers are placed and fastened down. 751-3.8 Installation of steps. The steps shall be installed as indicated on the plans or as directed by the RPR. When the steps are to be set in concrete, they shall be placed and secured in position before the concrete is placed. When the steps are installed in brick masonry, they shall be placed as the masonry is being built. The steps shall not be disturbed or used until the concrete or mortar has hardened for at least seven (7) days. After seven (7) days, the steps shall be cleaned and painted, unless they have been galvanized.
When steps are required with precast concrete structures they shall meet the requirements of ASTM C478. The steps shall be cast into the side of the sections at the time the sections are manufactured or set in place after the structure is erected by drilling holes in the concrete and cementing the steps in place.
When steps are required with corrugated metal structures, they shall be welded into aligned position at a vertical spacing of 12 inches (300 mm).
Instead of steps, prefabricated ladders may be installed. For brick or concrete structures, the ladder shall be held in place by grouting the supports in drilled holes. For metal structures, the ladder shall be secured by welding the top support to the structure and grouting the bottom support into drilled holes in the foundation or as directed by the RPR.
751-3.9 Backfilling.
a. After a structure has been completed, the area around it shall be backfilled with approved material, in horizontal layers not to exceed 8 inches (200 mm) in loose depth, and compacted to the density required in Item P-152. Each layer shall be deposited evenly around the structure to approximately the same elevation. The top of the fill shall meet the elevation shown on the plans or as directed by the RPR. b. Backfill shall not be placed against any structure until approved by the RPR. For concrete structures, approval shall not be given until the concrete has been in place seven (7) days, or until tests establish that the concrete has attained sufficient strength to withstand any pressure created by the backfill and placing methods.
c. Backfill shall not be measured for direct payment. Performance of this work shall be considered an obligation of the Contractor covered under the contract unit price for the structure involved. 751-3.10 Cleaning and restoration of site. After the backfill is completed, the Contractor shall dispose of all surplus material, dirt, and rubbish from the site. Surplus dirt may be deposited in embankments, shoulders, or as approved by the RPR. The Contractor shall restore all disturbed areas to their original condition. The Contractor shall remove all tools and equipment, leaving the entire site free, clear, and in good condition.
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Item D-751 Manholes, Catch Basins, Inlets and Inspection Holes 473
METHOD OF MEASUREMENT
751-4.1 Manholes, catch basins, inlets, inlet apron, and inspection holes shall be measured by the unit.
BASIS OF PAYMENT
751-5.1 The accepted quantities of manholes, catch basins, inlets, inlet apron, and inspection holes will be paid for at the contract unit price per each in place when completed. This price shall be full compensation for furnishing all materials and for all preparation, excavation, backfilling and placing of the materials; furnishing and installation of such specials and connections to pipes and other structures as may be required to complete the item as shown on the plans; and for all labor equipment, tools and incidentals necessary to complete the structure.
Payment will be made under:
Item D-751-5.1a Aircraft Rated Manhole - per each
Item D-751-5.1b Storm Drain Manhole - per each
Item D-751-5.2 Catch Basins - per each
Item D-751-5.3 Concrete Inlet Apron - per each
REFERENCES
The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.
ASTM International (ASTM)
ASTM A27 Standard Specification for Steel Castings, Carbon, for General Application
ASTM A47 Standard Specification for Ferritic Malleable Iron Castings ASTM A48 Standard Specification for Gray Iron Castings
ASTM A123 Standard Specification for Zinc (Hot-Dip Galvanized) Coatings on Iron and Steel Products
ASTM A283 Standard Specification for Low and Intermediate Tensile Strength Carbon Steel Plates
ASTM A536 Standard Specification for Ductile Iron Castings ASTM A897 Standard Specification for Austempered Ductile Iron Castings ASTM C32 Standard Specification for Sewer and Manhole Brick (Made from Clay or Shale)
ASTM C144 Standard Specification for Aggregate for Masonry Mortar ASTM C150 Standard Specification for Portland Cement
ASTM C443 Standard Specification for Joints for Concrete Pipe and Manholes, Using Rubber Gaskets.
ASTM C478 Standard Specification for Precast Reinforced Concrete Manhole Sections
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Item D-751 Manholes, Catch Basins, Inlets and Inspection Holes 474 ASTM C913 Standard Specification for Precast Concrete Water and Wastewater Structures.
American Association of State Highway and Transportation Officials (AASHTO) AASHTO M36 Standard Specification for Corrugated Steel Pipe, Metallic-Coated, for Sewers and Drains
END OF ITEM D-751
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Item D-752 Concrete Culverts, Headwalls, and Miscellaneous Drainage Structures 475 Item D-752 Concrete Culverts, Headwalls, and Miscellaneous Drainage Structures
DESCRIPTION
752-1.1 This item shall consist of reinforced concrete culverts, headwalls, and miscellaneous drainage structures constructed in accordance with these specifications, at the specified locations and conforming to the lines, grades, and dimensions shown on the plans or required by the RPR.
MATERIALS
752-2.1 Concrete. Reinforced concrete shall meet the requirements of Item P-610.
CONSTRUCTION METHODS
752-3.1 Unclassified excavation.
a. Trenches and foundation pits for structures or structure footings shall be excavated to the lines and grades and elevations shown on the plans. The excavation shall be of sufficient size to permit the placing of the full width and length of the structure or structure footings shown. The elevations of the bottoms of footings, as shown on the plans, shall be considered as approximate only; and the RPR may approve, in writing, changes in dimensions or elevations of footings necessary to secure a satisfactory foundation. b. Boulders, logs, or any other objectionable material encountered in excavation shall be removed.
All rock or other hard foundation material shall be cleaned of all loose material and cut to a firm surface either level, stepped, or serrated, as directed by the RPR. All seams or crevices shall be cleaned out and grouted. All loose and disintegrated rock and thin strata shall be removed. When concrete will rest on a surface other than rock, the bottom of the excavation shall not be disturbed and excavation to final grade shall not be made until immediately before the concrete or reinforcing steel is placed. c. The Contractor shall do all bracing, sheathing, or shoring necessary to perform and protect the excavation and the structure as required for safety or conformance to governing laws. The cost of bracing, sheathing, or shoring shall be included in the unit price bid for excavation. d. All bracing, sheathing, or shoring shall be removed by the Contractor after the completion of the structure. Removal shall not disturb or damage the finished concrete. The cost of removal shall be included in the unit price bid for excavation.
e. After each excavation is completed, the Contractor shall notify the RPR. No concrete or reinforcing steel shall be placed until the RPR has approved the depth of the excavation and the character of the foundation material.
752-3.2 Backfilling.
a. After a structure has been completed, backfilling with approved material shall be accomplished by applying the fill in horizontal layers not to exceed 8 inches (200 mm) in loose depth, and compacted. The field density of the compacted material shall be at least 90% of the maximum density for cohesive soils and 95% of the maximum density for noncohesive soils. The maximum density shall be determined in accordance with ASTM D698. The field density shall be determined in accordance with ASTM D1556.
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Item D-752 Concrete Culverts, Headwalls, and Miscellaneous Drainage Structures 476 b. No backfilling shall be placed against any structure until approved by the RPR. For concrete, approval shall not be given until the concrete has been in place seven (7) days, or until tests establish that the concrete has attained sufficient strength to withstand any pressure created by the backfill or the placement methods.
c. Fill placed around concrete culverts shall be deposited on each side at the same time and to approximately the same elevation. All slopes bounding or within the areas to be backfilled shall be stepped or serrated to prevent wedge action against the structure. d. Backfill will not be measured for direct payment. Performance of this work shall be considered as a subsidiary obligation of the Contractor, covered under the contract unit price for “unclassified excavation for structures.”
752-3.3 Weep holes. Weep holes shall be constructed as shown on the plans. 752-3.4 Cleaning and restoration of site. After the backfill is completed, the Contractor shall dispose of all surplus material, dirt, and rubbish from the site. Surplus dirt may be deposited in embankment, shoulders, or as approved by the RPR. The Contractor shall restore all disturbed areas to their original condition. The Contractor shall remove all tools and equipment, leaving the entire site free, clear, and in good condition.
752-3.5 Grouted Riprap. Grouted rip-rap shall consist of furnishing and placing crushed stone, with grout, and underlain with filter material of granular filter blankets or erosion control geosynthetic fabric.
The depth and type of riprap shall be: 12-inches deep with D50 = 6”. 752-3.5.1 Riprap Properties. Aggregate used for rip rap shall be color-matched with adjacent landscape aggregate. The Contractor shall provide the Engineer, in writing, material information and the source location at least 10 days prior to use of the material unless the material is currently acceptable for use as determined by the Engineer. Waste or sacked concrete shall not be permitted for use as riprap. Riprap material shall have the following physical properties:
(A) The maximum aggregate size shall be 150% of the indicated D50 size and the minimum aggregate size shall be 50% of the indicated D50 size.
(B) Aggregate shall be angular and shall not exceed 3:1 ratio for flat and/or elongated pieces when determined by ASTM D4791. Rounded aggregate shall only be allowed when specified or approved by the Engineer.
(C) The loss by abrasion in the Los Angeles Abrasion Machine, determined as prescribed in ASTM C535, shall not exceed 40 percent (by weight) after 1000 revolutions. 752-3.5.2 Erosion Control Geosynthetic Properties. Erosion control fabrics shall be a woven monofilament fabric or a nonwoven fabric consisting only of long chain polymeric filaments such as polypropylene or polyester formed into a stable network that the filaments retain their relative position to each other. The fabric material shall additionally conform to the physical properties shown in the table below:
Property Class A Test Method
Grab tensile strength: lbs. 270 min. ASTM D4632
Elongation at break: % 45min., 115 max. ASTM D4632
Puncture strength: lbs. 110 min ASTM D4833
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Item D-752 Concrete Culverts, Headwalls, and Miscellaneous Drainage Structures 477 Burst strength: psi 430 min. ASTM D3786
Trapezoidal tear: lbs 75 min. ASTM D4533
Permittivity: second-1 0.07 min.
Apparent opening size: US
Standard sieve size
30 – 140 ASTM D4751
Ultraviolet Stability: % 70 min. ASTM D4355
752-3.5.3 Placement.
a. Fabric Placement. Fabric shall be placed at the locations shown on the project plans. The Contractor shall provide a surface free of obstructions, depressions, debris, and soft yielding surfaces prior to the placement of fabric. The fabric shall be loosely laid (not in a stretched condition), aligned and placed with no fold over wrinkles. The fabric shall be placed to provide a minimum 24-inch of overlap for each joint. On horizontal joints, the uphill fabric shall overlap the downhill fabric. On vertical joints, the upstream fabric shall overlap the downstream fabric. Bedding material shall be placed uniformly on the fabric to the depth specified on the plans and shall be free of mounds, dips, and windrows. Bedding material shall not be compacted.
b. Riprap Placement. Riprap shall be carefully placed on filter material consisting of a granular filter blanket or the bedding material on erosion control geosynthetic fabric. Placement shall not damage the underlying filter blanket or geosynthetic fabric. If the Engineer determines that the placement of stone has damaged or displaced the filter material to the extent that it cannot function as intended, the Contractor, at his expense, shall remove the placed riprap stone and properly correct the damage to, and/or the displacement of, the filter material. Such correction may include the removal of the filter material, re-grading the affected area, and subsequent replacement of the filter material and riprap stone as required by the Engineer.
i) Non-grouted Riprap. Riprap shall be placed in a manner which will produce a dense, reasonably well-graded mass without segregation and with a minimum amount of voids. The larger stone shall be evenly distributed through the riprap mass. The individual placement of larger riprap stones may be required to obtain a uniform distribution of stone size. The riprap placement shall be supplemented by such hand methods as are required to obtain a uniform finished surface. Allowable tolerance from the slope lines and grades shown for the finished riprap surfaces shall not exceed a distance equal to 1/3 of the nominal D50 size above or below the design surfaces. The final surface elevations shall be lower than any adjacent apron or pipe invert elevations and shall not obstruct the operation of adjacent structures. The flow line within riprap shall provide positive drainage with minimal ponding. Individual stones shall depress below the finished grades no lower than a distance equal to 1/2 of the nominal D50 size. Special care shall be exercised in placing riprap within 3 feet of structures to avoid damage to such structures.
ii) Grouted Riprap. Riprap ashall be place as specified in 752-3.5.3b.i) above, excluding the use of filter material and secure in place with Portland cement grout meeting the requirements of the table below. Grout shall be placed to a 12-inch depth minimum but in no case less than 70 percent of the depth of riprap. Consolidate grout into place with suitable spades, trowels or other approved means to provide a dense stone and mortar layer with all voids and interstices filled. After grout has been placed, the rocks shall be thoroughly brushed so that their top surfaces are exposed. If required, use A.10.e
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Item D-752 Concrete Culverts, Headwalls, and Miscellaneous Drainage Structures 478 water pressure to clean stone faces after the mortar has achieved sufficient strength. The outer rocks shall project 1/3 to 1/4 their diameter above the grouted surface.
Minimum Cementitious
Material (lbs)
Maximum W/CM
Ratio
Slump (in) Air Content (%)
850 0.6 9 +/-2 0 % -8 %
The cementitious materials shall meet the requirements of section 610-2.4 “Cement”. Up to 25 percent by weight of the minimum cementitious materials requirements may be an approved fly ash or natural pozzolan. The aggregates shall meet the applicable requirements of ASTM C33, #8 (3/8”) coarse aggregate grading and fine aggregate (sand) grading. All Ready Mixed Grout volume calculations shall be based on "absolute volume" with the total volume per cubic yard equal to 27 cubic feet.
Coarse aggregate volume shall be a maximum of 35% of the total aggregates volume. All mixing shall be in accordance with the applicable requirements of section 610-3.8.
The amount of slump shall be the minimum amount needed to permit gravity flow into the interstices with limited spading and brooming. The consistency of the grout shall be as approved by the Engineer. 752-3.6 Post Construction Inspection. Formwork is to be fully removed, without exception, to allow for inspection and if needed repair of any voids and or concrete consolidation issues below the frame, trench walls and invert. Grate and grate retainer inspection shall be performed to ensure that all grates and retainers are installed and are properly seated in place.
METHOD OF MEASUREMENT
752-4.1 The Concrete flared ends shall be measured by the number of concrete headwalls each. 752-4.2 Concrete shall be measured by the number of cubic yards (cubic meters) of concrete, complete in place and accepted. In computing the yardage of concrete for payment, the dimensions used shall be those shown on the plans or approved by the RPR. No measurements or other allowances shall be made for forms, false work, cofferdams, pumping, bracing, expansion joints, or finishing of the concrete. No deductions in yardage shall be made for the volumes of reinforcing steel or embedded items. 752-4.3 The quantity of reinforcing steel shall be the calculated theoretical number of pounds (km) placed as shown on the plans, complete in place and accepted. The unit weight used for deformed bars shall be the weight of plain square or round bars, as the case may be, of equal nominal size.
BASIS OF PAYMENT
752-5.1 Payment will be made at the contract unit price per concrete flared end; for the accepted complete in-place riprap construction at the contract unit price. Riprap construction shall include excavation, ground surface preparation, erosion control geosynthetic fabric (if used for the project), bedding material, riprap stone, grout (if used for the project) and backfilling. These prices shall be full compensation for furnishing all materials and for all preparation, excavation, and placing the materials, and for all labor, equipment, tools, and incidentals necessary to complete the structure.
Payment will be made under:
Item D-752-5.1 Concrete Flared End – per each
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Item D-752 Concrete Culverts, Headwalls, and Miscellaneous Drainage Structures 479
REFERENCES
The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.
ASTM International (ASTM)
ASTM D698 Standard Test Methods for Laboratory Compaction Characteristics of Soil Using Standard Effort (12,400 ft-lb/ft3 (600 kN-m/m3)) ASTM D1556 Standard Test Method for Density and Unit Weight of Soil in Place by the Sand-Cone Method
END OF ITEM D-752
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Item D-752 Concrete Culverts, Headwalls, and Miscellaneous Drainage Structures 480 Page Intentionally Blank
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Item D-754 Concrete Gutters, Ditches, and Flumes 481
Item D-754 Concrete Gutters, Ditches, and Flumes
NOT USED
END OF ITEM D-754
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Item T-901 Seeding 482
Part 12 – Turfing
Item T-901 Seeding
DESCRIPTION
901-1.1 This item shall consist of soil preparation, hydro-seeding the areas shown on the plans or as directed by the RPR in accordance with these specifications.
MATERIALS
901-2.1 Seed. The species and application rates of grass, legume, and cover-crop seed furnished shall be those stipulated herein. Seed shall conform to the requirements of Federal Specification JJJ-S-181, Federal Specification, Seeds, Agricultural.
Seed shall be furnished separately or in mixtures in standard containers labeled in conformance with the Agricultural Marketing Service (AMS) Seed Act and applicable state seed laws with the seed name, lot number, net weight, percentages of purity and of germination and hard seed, and percentage of maximum weed seed content clearly marked for each kind of seed. The Contractor shall furnish the RPR duplicate signed copies of a statement by the vendor certifying that each lot of seed has been tested by a recognized laboratory for seed testing within six (6) months of date of delivery. This statement shall include: name and address of laboratory, date of test, lot number for each kind of seed, and the results of tests as to name, percentages of purity and of germination, and percentage of weed content for each kind of seed furnished, and, in case of a mixture, the proportions of each kind of seed. Wet, moldy, or otherwise damaged seed will be rejected.
Seeds shall be applied as follows:
Seed Properties and Rate of Application
Seed Minimum Seed
Purity (Percent)
Minimum
Germination
(Percent)
Rate of Application lb/acre
(or lb/1,000 S.F.)
Common
Bermuda 50 70 180 lbs/acre
Seeding shall be performed during the period between November and April inclusive, unless otherwise approved by the RPR.
901-2.2 Fiber. Fiber shall be produced from natural or recycled (pulp) fiber, such as woodchips or similar wood materials or from newsprint, chipboard, corrugated cardboard or a combination of these processed materials, and shall be free of synthetic or plastic materials. Fiber shall not contain more than 7 percent ash as determined by the Technical Association of the Pulp and Paper Industry (TAPPI) Standard T 413, shall contain less than 250 parts per million boron and shall be otherwise nontoxic to plant or animal life.
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Item T-901 Seeding 483
Fiber shall have a water-holding capacity by weight of not less than 1200 percent as determined by the procedure designated in the Department's Final Report, CA-DOT-TL-2176-1-76-36, "Water-Holding Capacity for Hydromulch," available at the Transportation Laboratory. Fiber shall be of such character that the fiber will disperse into uniform slurry when mixed with water. Water content of the fiber before mixing into slurry shall not exceed 15 percent of the dry weight of the fiber. The percentage of water in the fiber shall be determined by California Test 226. Fiber shall have the moisture content of the fiber marked on the package. Fiber shall be colored to contrast with the area on which the fiber is to be applied, and shall not stain concrete or painted surfaces. A Certificate of Compliance for fiber shall be furnished to the Engineer in conformance with the provisions in Caltrans Standard Specification Section 6-1.07, "Certificates of Compliance." required.
901-2.3 Fertilizer. Fertilizer shall be standard commercial fertilizers supplied separately or in mixtures containing the percentages of total nitrogen, available phosphoric acid, and water-soluble potash. They shall be applied at the rate and to the depth specified, and shall meet the requirements of applicable state laws. They shall be furnished in standard containers with name, weight, and guaranteed analysis of contents clearly marked thereon. No cyanamide compounds or hydrated lime shall be permitted in mixed fertilizers.
The fertilizers may be supplied in one of the following forms:
a. A dry, free-flowing fertilizer suitable for application by a common fertilizer spreader; b. A finely-ground fertilizer soluble in water, suitable for application by power sprayers; or c. A granular or pellet form suitable for application by blower equipment.
Fertilizers shall be commercial fertilizer and shall be spread at the min rate of 200 lbs per acre. 901-2.4 Soil for repairs. The soil for fill and topsoiling of areas to be repaired shall be at least of equal quality to that which exists in areas adjacent to the area to be repaired. The soil shall be relatively free from large stones, roots, stumps, or other materials that will interfere with subsequent sowing of seed, compacting, and establishing turf, and shall be approved by the RPR before being placed.
CONSTRUCTION METHODS
901-3.1 Advance preparation and cleanup. After grading of areas has been completed and before applying fertilizer and ground limestone, areas to be seeded shall be raked or otherwise cleared of stones larger than 2 inches (50 mm) in any diameter, sticks, stumps, and other debris that might interfere with sowing of seed, growth of grasses, or subsequent maintenance of grass-covered areas. If any damage by erosion or other causes has occurred after the completion of grading and before beginning the application of fertilizer and ground limestone, the Contractor shall repair such damage include filling gullies, smoothing irregularities, and repairing other incidental damage.
An area to be seeded shall be considered a satisfactory seedbed without additional treatment if it has recently been thoroughly loosened and worked to a depth of not less than 5 inches (125 mm) as a result of grading operations and, if immediately prior to seeding, the top 3 inches (75 mm) of soil is loose, friable, reasonably free from large clods, rocks, large roots, or other undesirable matter, and if shaped to the required grade.
When the area to be seeded is sparsely sodded, weedy, barren and unworked, or packed and hard, any grass and weeds shall first be cut or otherwise satisfactorily disposed of, and the soil then scarified or otherwise loosened to a depth not less than 5 inches (125 mm). Clods shall be broken and the top 3 inches (75 mm) of soil shall be worked into a satisfactory seedbed by discing, or by use of cultipackers, rollers, drags, harrows, or other appropriate means.
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Item T-901 Seeding 484
901-3.2 Dry application method.
a. Not Used.
901-3.3 Wet application method.
a. General. The Contractor may elect to apply seed, commercial fertilizer, stabilizing emulsion, and other materials, or any combination thereof, with fiber and water(and lime, if required) by spraying them on the previously prepared seedbed in the form of an aqueous mixture and by using the methods and equipment described herein. The rates of application shall be as follows:
Table 1
Material Rate
Seed – Common Bermuda 180 lbs/acre
Fiber 525 lbs/acre
Soil binder (starch) 150 lbs/acre
Fertilizer (to be confirmed by soil
test) 200 lbs/acre
b. Spraying equipment. The spraying equipment shall have a container or water tank equipped with a liquid level gauge calibrated to read in increments not larger than 50 gallons (190 liters) over the entire range of the tank capacity, mounted so as to be visible to the nozzle operator. The container or tank shall also be equipped with a mechanical power-driven agitator capable of keeping all the solids in the mixture in complete suspension at all times until used.
The unit shall also be equipped with a pressure pump capable of delivering 100 gallons (380 liters) per minute at a pressure of 100 lb / sq inches (690 kPa). The pump shall be mounted in a line that will recirculate the mixture through the tank whenever it is not being sprayed from the nozzle. All pump passages and pipe lines shall be capable of providing clearance for 5/8 inch (16 mm) solids. The power unit for the pump and agitator shall have controls mounted so as to be accessible to the nozzle operator.
There shall be an indicating pressure gauge connected and mounted immediately at the back of the nozzle.
The nozzle pipe shall be mounted on an elevated supporting stand in such a manner that it can be rotated through 360 degrees horizontally and inclined vertically from at least 20 degrees below to at least 60 degrees above the horizontal. There shall be a quick-acting, three-way control valve connecting the recirculating line to the nozzle pipe and mounted so that the nozzle operator can control and regulate the amount of flow of mixture delivered to the nozzle. At least three different types of nozzles shall be supplied so that mixtures may be properly sprayed over distance varying from 20 to 100 feet (6 to 30 m).
One shall be a close-range ribbon nozzle, one a medium-range ribbon nozzle, and one a long-range jet nozzle. For case of removal and cleaning, all nozzles shall be connected to the nozzle pipe by means of quick-release couplings.
In order to reach areas inaccessible to the regular equipment, an extension hose at least 50 feet (15 m) in length shall be provided to which the nozzles may be connected.
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Item T-901 Seeding 485
c. Mixtures. Lime, if required, shall be applied separately, in the quantity specified, prior to the fertilizing and seeding operations. Not more than 220 pounds (100 kg) of lime shall be added to and mixed with each 100 gallons (380 liters) of water. Seed and fertilizer shall be mixed together in the relative proportions specified, but not more than a total of 220 pounds (100 kg) of these combined solids shall be added to and mixed with each 100 gallons (380 liters) of water.
All water used shall be obtained from fresh water sources and shall be free from injurious chemicals and other toxic substances harmful to plant life. The Contractor shall identify to the RPR all sources of water at least two (2) weeks prior to use. The RPR may take samples of the water at the source or from the tank at any time and have a laboratory test the samples for chemical and saline content. The Contractor shall not use any water from any source that is disapproved by the RPR following such tests.
All mixtures shall be constantly agitated from the time they are mixed until they are finally applied to the seedbed. All such mixtures shall be used within two (2) hours from the time they were mixed or they shall be wasted and disposed of at approved locations.
d. Spraying. Lime, if required, shall be sprayed only upon previously prepared seedbeds. After the applied lime mixture has dried, the lime shall be worked into the top 3 inches (75 mm), after which the seedbed shall again be properly graded and dressed to a smooth finish.
Mixtures of seed and fertilizer shall only be sprayed upon previously prepared seedbeds on which the lime, if required, shall already have been worked in. The mixtures shall be applied by means of a high- pressure spray that shall always be directed upward into the air so that the mixtures will fall to the ground like rain in a uniform spray. Nozzles or sprays shall never be directed toward the ground in such a manner as might produce erosion or runoff.
Particular care shall be exercised to ensure that the application is made uniformly and at the prescribed rate and to guard against misses and overlapped areas. Proper predetermined quantities of the mixture in accordance with specifications shall be used to cover specified sections of known area.
Checks on the rate and uniformity of application may be made by observing the degree of wetting of the ground or by distributing test sheets of paper or pans over the area at intervals and observing the quantity of material deposited thereon.
On surfaces that are to be mulched as indicated by the plans or designated by the RPR, seed and fertilizer applied by the spray method need not be raked into the soil or rolled. However, on surfaces on which mulch is not to be used, the raking and rolling operations will be required after the soil has dried. 901-3.4 Maintenance of seeded areas. The Contractor shall protect seeded areas against traffic or other use by warning signs or barricades, as approved by the RPR. Surfaces gullied or otherwise damaged following seeding shall be repaired by regrading and reseeding as directed. The Contractor shall mow, water as directed, and otherwise maintain seeded areas in a satisfactory condition until final inspection and acceptance of the work.
When either the dry or wet application method outlined above is used for work done out of season, it will be required that the Contractor establish a good stand of grass of uniform color and density to the satisfaction of the RPR. A grass stand shall be considered adequate when bare spots are one square foot (0.01 sq m) or less, randomly dispersed, and do not exceed 3% of the area seeded.
METHOD OF MEASUREMENT
901-4.1 The quantity of seeding to be paid for shall be the number of units acres (sq m) measured on the ground surface, completed and accepted.
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Item T-901 Seeding 486
BASIS OF PAYMENT
901-5.1 Payment shall be made at the contract unit price per square yard (sq m) or fraction thereof, which price and payment shall be full compensation for furnishing and placing all material and for all labor, equipment, tools, and incidentals necessary to complete the work prescribed in this item.
Payment will be made under:
Item 901-5.1 Erosion Control Hydro-Seeding - per square yard
REFERENCES
The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.
ASTM International (ASTM)
ASTM C602 Standard Specification for Agricultural Liming Materials Federal Specifications (FED SPEC)
FED SPEC JJJ-S-181, Federal Specification, Seeds, Agricultural Advisory Circulars (AC)
AC 150/5200-33 Hazardous Wildlife Attractants on or Near Airports FAA/United States Department of Agriculture
Wildlife Hazard Management at Airports, A Manual for Airport Personnel END OF ITEM T-901
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Item T-901 Seeding 487
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Item T-903 Sprigging 488
Item T-903 Sprigging
NOT USED
END OF ITEM T-903
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Item T-903 Sprigging 489
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Item T-904 Sodding 490
Item T-904 Sodding
NOT USED
END OF ITEM T-904
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Item T-904 Sodding 491
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Item T-905 Topsoil 492
Item T-905 Topsoil
DESCRIPTION
905-1.1 This item shall consist of preparing the ground surface for topsoil application, removing topsoil from designated stockpiles or areas to be stripped on the site or from approved sources off the site, and placing and spreading the topsoil on prepared areas in accordance with this specification at the locations shown on the plans or as directed by the RPR.
MATERIALS
905-2.1 Topsoil. Topsoil shall be the surface layer of soil with no admixture of refuse or any material toxic to plant growth, and it shall be reasonably free from subsoil and stumps, roots, brush, stones (2 inches (50 mm) or more in diameter), and clay lumps or similar objects. Brush and other vegetation that will not be incorporated with the soil during handling operations shall be cut and removed. Ordinary sod and herbaceous growth such as grass and weeds are not to be removed, but shall be thoroughly broken up and intermixed with the soil during handling operations. Heavy sod or other cover, which cannot be incorporated into the topsoil by discing or other means, shall be removed. The topsoil or soil mixture, unless otherwise specified or approved, shall have a pH range of approximately 5.5 pH to 7.6 pH, when tested in accordance with the methods of testing of the Association of Official Agricultural Chemists in effect on the date of invitation of bids. The organic content shall be not less than 3% nor more than 20% as determined by the wet-combustion method (chromic acid reduction). There shall be not less than 20% nor more than 80% of the material passing the 200 mesh (75 µm) sieve as determined by the wash test in accordance with ASTM C117.
Natural topsoil may be amended by the Contractor with approved materials and methods to meet the above specifications.
905-2.2 Inspection and tests. Within 10 days following acceptance of the bid, the RPR shall be notified of the source of topsoil to be furnished by the Contractor. The topsoil shall be inspected to determine if the selected soil meets the requirements specified and to determine the depth to which stripping will be permitted. At this time, the Contractor may be required to take representative soil samples from several locations within the area under consideration and to the proposed stripping depths, for testing purposes as specified in paragraph 905-2.1.
CONSTRUCTION METHODS
905-3.1 General. Areas to be topsoiled shall be shown on the plans. If topsoil is available on the site, the location of the stockpiles or areas to be stripped of topsoil and the stripping depths shall be shown on the plans.
Suitable equipment necessary for proper preparation and treatment of the ground surface, stripping of topsoil, and for the handling and placing of all required materials shall be on hand, in good condition, and approved by the RPR before the various operations are started.
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Item T-905 Topsoil 493
905-3.2 Preparing the ground surface. Immediately prior to dumping and spreading the topsoil on any area, the surface shall be loosened by discs or spike-tooth harrows, or by other means approved by the RPR, to a minimum depth of 2 inches (50 mm) to facilitate bonding of the topsoil to the covered subgrade soil. The surface of the area to be topsoiled shall be cleared of all stones larger than 2 inches (50 mm) in any diameter and all litter or other material which may be detrimental to proper bonding, the rise of capillary moisture, or the proper growth of the desired planting. Limited areas, as shown on the plans, which are too compact to respond to these operations shall receive special scarification.
Grades on the area to be topsoiled, which have been established by others as shown on the plans, shall be maintained in a true and even condition. Where grades have not been established, the areas shall be smooth-graded and the surface left at the prescribed grades in an even and compacted condition to prevent the formation of low places or pockets where water will stand. 905-3.3 Obtaining topsoil. Prior to the stripping of topsoil from designated areas, any vegetation, briars, stumps and large roots, rubbish or stones found on such areas, which may interfere with subsequent operations, shall be removed using methods approved by the RPR. Heavy sod or other cover, which cannot be incorporated into the topsoil by discing or other means shall be removed.
When suitable topsoil is available on the site, the Contractor shall remove this material from the designated areas and to the depth as shown on the plans. The topsoil shall be spread on areas already tilled and smooth-graded, or stockpiled in areas approved by the RPR. Any topsoil stockpiled by the Contractor shall be rehandled and placed without additional compensation. Any topsoil that has been stockpiled on the site by others, and is required for topsoil purposes, shall be removed and placed by the Contractor.
The sites of all stockpiles and areas adjacent thereto which have been disturbed by the Contractor shall be graded if required and put into a condition acceptable for seeding.
When suitable topsoil is secured off the airport site, the Contractor shall locate and obtain the supply, subject to the approval of the RPR. The Contractor shall notify the RPR sufficiently in advance of operations in order that necessary measurements and tests can be made. The Contractor shall remove the topsoil from approved areas and to the depth as directed. The topsoil shall be hauled to the site of the work and placed for spreading, or spread as required. Any topsoil hauled to the site of the work and stockpiled shall be rehandled and placed without additional compensation. 905-3.4 Placing topsoil. The topsoil shall be evenly spread on the prepared areas to a uniform depth of 2 inches (50 mm) after compaction, unless otherwise shown on the plans or stated in the special provisions.
Spreading shall not be done when the ground or topsoil is frozen, excessively wet, or otherwise in a condition detrimental to the work. Spreading shall be carried on so that turfing operations can proceed with a minimum of soil preparation or tilling.
After spreading, any large, stiff clods and hard lumps shall be broken with a pulverizer or by other effective means, and all stones or rocks (2 inches (50 mm) or more in diameter), roots, litter, or any foreign matter shall be raked up and disposed of by the Contractor. after spreading is completed, the topsoil shall be satisfactorily compacted by rolling with a cultipacker or by other means approved by the RPR. The compacted topsoil surface shall conform to the required lines, grades, and cross-sections. Any topsoil or other dirt falling upon pavements as a result of hauling or handling of topsoil shall be promptly removed.
METHOD OF MEASUREMENT
905-4.1 Topsoil obtained on the site shall be measured by the number of square yards (square meters) of topsoil measured in its original position and stripped or excavated and reused. Topsoil shall be measured by area in square yards (square meters).
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Item T-905 Topsoil 494
905-4.2 Topsoil obtained off the site shall be measured by the number of cubic yards (cubic meters) of topsoil measured in its original position and stripped or excavated. Topsoil shall be measured by volume in cubic yards (meters) computed by the method of end areas.
BASIS OF PAYMENT
905-5.1 Payment will be made at the contract unit price per square yard (square meter) for topsoil (obtained on the site). This price shall be full compensation for furnishing all materials and for all preparation, placing, and spreading of the materials, and for all labor, equipment, tools, and incidentals necessary to complete the item.
905-5.2 Payment will be made at the contract unit price per square yard (square meter) for topsoil (obtained off the site). This price shall be full compensation for furnishing all materials and for all preparation, placing, and spreading of the materials, and for all labor, equipment, tools, and incidentals necessary to complete the item.
Payment will be made under:
Item T-905-5.1 Topsoil (Obtained on Site or Removed from Stockpile - per cubic yard (cubic meter)
Item T-905-5.2 Topsoil (Furnished from Off the Site) - not used.
REFERENCES
The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.
ASTM International (ASTM)
ASTM C117 Materials Finer than 75 µm (No. 200) Sieve in Mineral Aggregates by Washing
Advisory Circulars (AC)
AC 150/5200-33 Hazardous Wildlife Attractants on or Near Airports FAA/United States Department of Agriculture
Wildlife Hazard Management at Airports, A Manual for Airport Personnel END OF ITEM T-905
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Item T-905 Topsoil 495
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Item T-908 Mulching 496
Item T-908 Mulching
NOT USED
END OF ITEM T-908
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Item T-908 Mulching 497
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Item L-100 General Electrical Requirements 498
Part 13 – Lighting Installation
ITEM L-100 ELECTRICAL GENERAL REQUIREMENTS
DESCRIPTION
100-1.1 SCOPE. This Item includes the requirements for demolition and removal of existing airfield electrical equipment and facilities for all areas within the limits of construction as provided in these specifications, as shown on the Plans, as required by the Engineer, and as necessary to complete the Work.:
a. The demolition/removal of portions of the existing airfield lighting systems and existing constant current regulator.
Installation shall be in accordance with Specifications FAA-C-1217 and FAA-C-1391, except as specified herein. Perform all work not included in the FAA Specifications in accordance with the National Electrical Code, applicable local and Hollister Municipal Airport (CVH) standards and regulations.
b. The relocation and reconnection of the Automated Weather Observation System feeder. (1) Installation shall be in accordance with National Electrical Code, applicable local and Hollister Municipal Airport (CVH) standards and regulations.
100-1.2 RELATED DOCUMENTS. The General Provisions of the Contract, including General and Special Conditions, apply to work specified in this Item. a. See 060 SUPPLEMENTAL CONDITIONS for liquidated damages and the sequence of construction.
b. See Item P-151, Clearing and Grubbing for specifics of demolition and adjustment of existing facilities.
c. Conflicts between Drawing and Specifications (Contract Documents ) and between Contract Documents and references within the Contract Documents: Prospective Contractors shall, as part of their proposals, enumerate, identify and list conflicts they find to exist within the Contract Documents, and between these Documents and the rules, regulations, standards and codes of the authority having jurisdiction (Aviation Department, City, County, etc.), local Utility companies and local, County or State governing bodies.
100-1.3 SPECIFICATIONS AND STANDARDS. As a supplement to the installation requirements of this item, the following standard specifications and regulations of the issues in effect on the date of this solicitation are incorporated herein by reference and are made a part hereof for electrical work and installation and splicing of underground cables.
NEC The latest adopted edition of the
National Electrical Code
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Item L-100 General Electrical Requirements 499
FAA-STD-019 Lightning Protection, Grounding,
Bonding and Shielding Requirements
for Facilities
FAA-C-1217 Electrical Work, Interior
FAA-C-1391 Installation and Splicing of
Underground Cables
Utility Company
Rules and
Regulations
Pacific Gas and Electric
Local Governing
Bodies' Codes
and Regulations
City of Hollister
100-1.4 SHOP DRAWINGS AND MATERIAL LISTS. Prior to the installation of any material and equipment and within thirty (30) days of contract award, the Contractor shall submit to the Owner for approval eight (8) copies of manufacturers' brochures containing complete dimensional and performance characteristics, wiring diagrams, installation and operation instructions, etc., for the equipment listed in the individual L-Series specification Items.
A materials list shall be submitted listing each specification paragraph number and stating whether the materials proposed are as specified or are substitutions. If the item is a substitute item, a complete submittal as described in the above paragraph shall be provided for that item.
Unless otherwise coordinated with the Engineer, the submittal shall be complete and made in one submission in booklet form with hard-bound cover. Partial submissions will not be reviewed or considered.
Submittal data shall be presented in a clear, precise and thorough manner. Original catalog sheets are preferred. Photocopies are acceptable provided they are as good a quality as the original. Clearly and boldly mark each copy to identify pertinent products or models applicable to this project. Indicate all optional equipment and delete non-pertinent data. Submittals for components of electrical equipment and systems shall identify the equipment for which they apply on each submittal sheet. Markings shall be boldly and clearly made with arrows or circles (highlighting is not acceptable). Contractor is solely responsible for delays in project accruing directly or indirectly from late submissions or resubmissions of submittals. 100-1.5 AIRFIELD LIGHTING SYSTEM SWITCHOVER BETWEEN CONSTRUCTION STAGES. At each stage switchover and prior to the end of every work shift, the Contractor shall test and operate the affected airfield lighting and miscellaneous power circuits early enough, prior to their need, as required to verify correct operation to Airport Operations. 100-1.6 SPARE FIXTURE INVENTORY REPLACEMENT. If the use of Airport supplied spare parts is coordinated with the Airport, the Contractor shall replace spares or salvaged lighting items that the Contractor uses or damages during construction so that at the end of the project, the stipulated number (minimum) of good working spares shall be delivered to the Owner.
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Item L-100 General Electrical Requirements 500
100-1.7 AIRFIELD LIGHTING SYSTEM OPERATIONAL TESTS. Prior to the end of every work shift, the Contractor shall test and operate the affected airfield lighting and miscellaneous power circuits early enough, prior to their need, as required to verify correct operation to the Engineer and Airport Operations.
100-1.8 OPERATING AND MAINTENANCE INSTRUCTIONS:
a. At the completion of the project, at such time as designated by the Engineer, an operational and maintenance instruction period for Owner shall take place. The Contractor shall have present during this entire period his superintendent, foremen of various portions of the project, and manufacturer's service representatives (factory trained) for all equipment requiring periodic maintenance. All operational and maintenance instructions shall be presented under direct supervision of the Engineer.
Prior to the O&M instruction period, all systems shall be started up and inspected by the Contractor, and shall be fully operational.
b. Contractor shall provide sign-in sheet and shall be responsible for having all present parties sign in. After instruction is complete and accepted by Owner, Contractor shall provide Owner a letter indicating that the instructions have been accepted and Owner shall sign same. Provide line items for each system demonstrated. Both parties shall initial each item. Copies shall be sent to the Engineer. c. Unless otherwise specifically trained as such by the manufacturer, the Contractor's personnel do not qualify as factory trained representatives.
EQUIPMENT AND MATERIALS
100-2.1 GENERAL
a. Airport lighting equipment and materials covered by advisory circulars (ACs) must be certified and listed in AC 150/5345-53, Airport Lighting Equipment Certification Program, current edition. b. All other equipment and materials covered by other referenced specifications shall be subject to acceptance through manufacturer’s certification of compliance with the applicable specification when requested by the Engineer.
c. All equipment and materials furnished and installed in this section shall be guaranteed against defects in materials and workmanship for at least twelve (12) months from the date of final acceptance by the Owner. The defective materials and/or equipment shall be repaired or replaced, at the Owner’s discretion, with no additional cost to the Owner.
100-2.2 EQUIPMENT. Conduits, conduit fittings, conductors, connectors, boxes, wiring devices, panelboards, and circuit breakers shall meet requirements of Specification FAA-C-1217. 100-2.3 CONDUIT, EXTERIOR. Conduits in concrete slabs, in block walls or exterior exposed shall be rigid galvanized steel (RGS). Conduits run on the exterior of the building above or below the grade for the earth grounding system shall be rigid zinc-coated steel. Radius of bends in RGS shall be minimum 12 nominal pipe diameters. Rigid galvanized steel conduit run in concrete or below slab on grade, or in the ground, shall be field wrapped or shall have factory-applied coating as required in Specification FAA-C- 1217. Field-made joints, fittings, abrasions and holidays shall be coated or wrapped with material equal to the original coating or wrapping.
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Item L-100 General Electrical Requirements 501
100-2.4 CONDUIT, UNDERGROUND. Conduits run underground are specified in Item L-110, Airport Underground Electrical Duct Banks and Conduits of these specifications. 100-2.5 600 VOLT WIRE. 600V cable shall be as specified in Item L-108, Underground Power Cable for Airports.
100-2.6 CONDUIT FITTINGS. Each conduit and nipple entrance to junction boxes, panelboards, disconnect switches, duct, raceway, equipment cabinets, and other such electrical enclosures shall be fitted with double locknuts (one each side of metal penetrated) and insulating bushing. Bushings on 1-1/4 inch and larger conduits shall be insulated metallic, type OZ/Gedney Cat. No. IBC Series, or equal; bushings for 3/4 inch and 1 inch shall be plastic insulated T&B rated for 150 °C, or equal. All openings where conduits enter junction boxes, other enclosures and shelters shall be sealed weathertight. The conduit shall be capped, if left empty, or sealed with Ducseal, or equal, around the conductors for exterior conduits. 100-2.7 CONCRETE-ENCASED DUCT. Concrete-encased PVC duct shall be provided with a 3- inch minimum encasement with spacing between conduits as detailed on the plans. Concrete shall be be provided with a vinyl warning tape as detailed on the plans and specified in Item L-110, Airport Underground Electrical Duct Banks and Conduits.
100-2.8 CONCRETE HANDHOLES AND JUNCTION STRUCTURES. Handholes and junction structures shall be as specified in Item L-115, Electrical Handholes and Junction Structures and as detailed on drawings.
100-2.9 LIGHT BASES AND TRANSFORMER HOUSING. Bases and covers shall be specified in item L-125, Installation of Airport Lighting Systems and as detailed on drawings. 100-2.10 OTHER ELECTRICAL EQUIPMENT. Cutouts, relays, terminal blocks, transfer relays, circuit breakers, and all other regularly used commercial items of electrical equipment not covered by FAA equipment specifications shall conform to the applicable rulings and standards of the Institute of Electrical and Electronic Engineers (IEEE) or the National Electrical Manufacturers Association (NEMA). When specified, test reports from a testing laboratory indicating that the equipment meets the specifications shall be supplied. In all cases, equipment shall be new and a first-grade product. This equipment shall be supplied in the quantities required for the specific project and shall incorporate the electrical and mechanical characteristics specified in the specification and plans.
CONSTRUCTION METHODS
100-3.1 EXISTING UTILITIES. Prior to any excavation or trenching, provide utility locator and verify any existing cables and utilities which will be crossed by the trench. Ensure these utilities are permanently disconnected if they are going to be demolished. The existing service lines shall be exposed by hand-digging in those areas that will be crossed and shall be protected from any possible damage. If any damage occurs, it shall be the Contractor's responsibility to immediately repair such damage with materials and methods approved by the Owner and in compliance with applicable codes and standards, at no additional cost to the Owner.
100-3.2 DEMOLITION AND SALVAGE.
a. Demolition. Removal and/or Salvage of indicated portions of the airfield lighting system serving portions of Runway 13-31, Taxiway ‘A’, Taxiway ‘B’, Taxiway ‘C’ as follows:
(1) Remove indicated power cables from conduits and ducts.
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Item L-100 General Electrical Requirements 502
(2) Demolish indicated conduits, ducts, handholes and concrete light and sign bases per the requirements of Item P-151, Clearing and Grubbing. Elements covered shall include the intent, but not be limited to the specific elements, of the following:
(a) Underground conduits and duct banks, both concrete encased and direct earth buried.
(b) Underground electrical concrete structures including manholes and handholes of varying sizes.
(c) Sign and light concrete encased bases, back boxes and miscellaneous concrete footings.
(3) Remove demolished material from site and dispose of according to local regulations.
(4) Provide backfill meeting the requirements of P-152, Excavation and Embankment.
Unless otherwise required for general Civil excavation and embankment, replacement backfill and paving repair shall be incidental to the demolition item. (5) All lights and signs deemed non-salvageable by the Airport and isolation transformers (which are not slated for reinstallation) shall become the property of the Contractor and shall be removed from the site.
100-3.3 CIRCUIT BREAKERS. Panelboard-mounted circuit breakers and other similar items shall be furnished and installed at the locations shown in the plans. 100-3.4 CONDUCTORS. Installation of underground 5 kV conductors is specified in Item L-108 of these specifications.
100-3.5 GROUNDING. All metal support structures and metal enclosures shall be grounded in accordance with the requirements of the Specifications FAA-C-1217, FAA-C-1391, and FAA-STD-019, and as indicated on the drawings.
100-3.6 GROUND RODS. Grounding rods shall be 3/4-inch diameter by 10 feet long copper- jacketed steel. Grounding connections shall be by the exothermic weld process, Cadweld or equal.
Extruded, drawn or stamped-type ground clamps will not be acceptable unless otherwise noted. The resistance to ground shall not exceed 25 ohms.
100-3.7 GROUND CONDUCTORS. Equipment grounding conductors shall be insulated copper, except where shown on the project drawings to be bare, and sized as shown on the project drawings; and all grounds will be shown in accordance with Article 250-95 of the National Electrical Code and with FAA- STD-019. Attachment of wire to supports, boxes, etc., shall be accomplished using approved ground lug attached with a separate stainless steel screw, lock washer and nut. Screws used for support of the electrical enclosure shall not be used for connection of the ground wire. Pipe straps shall not be used for ground purposes.
COLOR CODING OF GROUND CONDUCTORS
TYPE OF GROUND
CONDUCTOR
COLOR OF INSULATION
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Item L-100 General Electrical Requirements 503
Grounding Electrode Conductor Bare - No Insulation
Equipment Grounding
Conductor
Green (safety)
*Multipoint Ground (Frame) Green with bright orange tracer *Signal Ground Green with bright yellow
tracer
*Where these cables are concealed and not color coded, an exposed portion of the cable and each end of the cable for a minimum length of 2 feet shall be color coded with green tape overlaid with a bright orange or yellow to form a tracer. Where routed through raceways or wireways, the color coding shall be such that by removing or opening any one cover, the coding will be visible. Where conductors are routed through cable trays, color coding shall be accomplished at intervals not exceeding 3 feet.
The multi-ground system supplements but does not replace the equipment grounding conductor required by the National Electrical Code.
Each of these separate ground conductors is insulated in order to keep it distinct and not allow contact with any other conductor.
Electrical continuity of cable armor or shield shall be maintained. Grounding of the cable armor or shield shall be required at all terminations and shall be accomplished by connecting a #6 AWG solid bare copper wire to the cable armor or shield by means of a compression-type ground clamp installed within the terminating enclosure. Armor or shield ground wire shall be connected to the ground electrode conductor using split bolt connector, Burndy or equal. Grounding of direct earth burial (DEB) armored power and shielding control cable shall be at each end in accordance with FAA-C-1391. 100-3.8 IDENTIFICATION. Handhole, manhole, fixture and sign identification shall be as detailed on the drawings and as indicated in the associated “L” series Items. Cable tagging and markers shall be identified as per FAA-C-1391, Sections 3.5.1 and 2.
100-3.9 NOTIFICATION OF TESTING. The Contractor shall notify the project Resident Engineer (RE) and the owner (CVH) a minimum of 48 hours in advance of system, or partial system, testing, including but not limited to, installed cable megger testing, operational testing of any modified lighting circuit and fixture and signs photometric testing.
100-3.10 TESTING AND SUBMITTALS. Equipment and materials list and shop drawings shall be submitted as per FAA-C-1217, Section 5.1. Testing shall be required and performed as per FAA-C-1217, Section 5.3 and FAA-C-1391, Section 4. The Contractor shall be responsible for repairs or replacement of any cable found defective after installation.
The Contractor shall secure the services of an independent testing service to test the installed airfield lighting and miscellaneous power cables prior to the start of and at the completion of this project. The results of the testing shall be provided to the Owner and Construction Manager for review and acceptance.
The Contractor shall be responsible for repairs or replacement of any cable found defective after installation.
The Contractor shall provide testing of the new, installed airfield lighting fixtures and new, installed signs per Table below.
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Item L-100 General Electrical Requirements 504
Installation tests in addition to all tests contained in other L-Series Items shall be provided as follows:
Item
Test Required
Mfgr's
Rep.
Present?
5 kV Rated Airfield Lighting
and Power Cables (On the
Reel, Not Including Equipment
for Contractor Quality Control.
May be deleted per
coordination with Engineer).
Megger check to 2.0 times nominal system rated voltage
prior to installation. Values of insulation resistance for each reel shall be noted and given to the Construction
Manager/ Owner for acceptance. It is expected that the readings will be greater than 1000 megohms (1
gigohm).
No
5 kV Rated Airfield Lighting
and Power Cables (Installed in
This Project)
Megger check at 1000 volts at the completion of
installation. Test every circuit for conductor-to-ground and conductor-to-conductor (between circuits)
insulation resistance. Test results shall be tabulated and given to the Construction Manager/Owner for
acceptance. It is required that the readings be greater than 100 megohms.
No
5 kV Rated Airfield Lighting
and Power Cables (All Circuits
Modified in This Project,
Emanating from any Lighting
Vault)
Megger check at 1000 volts prior to the start of and at the completion of installation. Test every circuit for conductor-to-ground and conductor-to-conductor
(between circuits) insulation resistance. Test results shall be tabulated and given to the Construction
Manager/Owner for acceptance.
No
5 kV and 600 Volt and Multi-
pair Cables
Continuous-tape pull tension readings for each section
of cable shall be provided to the Construction Manager
for review.
No
Bases
All in-pavement lighting cans shall be fitted in
accordance with FAA Advisory Circulars such that the
base of the fitting, when installed, shall be level with the surrounding surface. Alignment jigs as supplied by
Jaquith Industries, Inc. (or equal) shall be used to ensure the can is aligned in such a way that no portion of the can shall be above the level of the surrounding surface and the can is geometrically positioned such that when
the fitting is installed, the light beam will be directed in accordance with the appropriate advisory circulars for
that type of fitting and its location.
No
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Item L-100 General Electrical Requirements 505
Item
Test Required
Mfgr's
Rep.
Present?
Airfield Signs and Light
Fixture
(Testing prior to installation is
for Contractor Quality Control.
May be deleted per
coordination with Engineer).
Each sign or light fixture will be carefully examined
prior to installation to ensure that lenses, where
required, have been fitted, no signs of physical damage to the fittings exist and the lamps are working by
connecting the fittings' electrical leads to a DC voltage source not exceeding 6 volts, such as a motorcycle
battery. Any failures are to be reported to the
Construction Manager or Owner. The fittings, when
installed, shall be torqued to manufacturer's and FAA
requirements and noted.
No
METHOD OF MEASUREMENT
100-4.1 AIRFIELD ELECTRICAL SYSTEM DEMOLITION AND SALVAGE. This Item consists of the removal of indicated portions of the airfield lighting system serving portions of Runway 13- 31(REILs, conduits and foundations), Runway 6-24 and Taxiways ‘ ‘C’. This work also includes the removal of all conductors which are not to remain in service from ducts or conduits accessed under this project. Conduit, duct banks, fixture bases, back boxes and concrete handholes are to be selectively demolished as part of the grading and excavation.
100-4.2 AWOS FEEDER AND CONDUIT RELOCATION. This Item consists of the vertical relocation and reconnection of the existing AWOS feeder and conduit connection to avoid utilities in conflict with the line.
BASIS OF PAYMENT
100-5.1 AIRFIELD ELECTRICAL SYSTEM DEMOLITION AND SALVAGE. Payment will be made at the contract Lump Sum price for the electrical demolition and removal services completed and accepted. This price shall be full compensation for furnishing all materials and for all labor, equipment, tools, and incidentals necessary to complete this Item as accepted by the Owner. 100-5.2 AWOS FEEDER AND CONDUIT RELOCATION. Payment will be made at the contract Lump Sum price for the conduit and feeder relocations completed and accepted. This price shall be full compensation for furnishing all materials and for all labor, equipment, tools and incidentals necessary to complete this Item as accepted by the Owner.
Payment will be made under:
Item L-100-5.1 Electrical Demolition – per Lump Sum
Item L-100-5.2 AWOS Feeder and Conduit Relocation – per Lump Sum
END OF ITEM L-100
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Item L-108 Underground Power Cable for Airports 506
Item L-108 Underground Power Cable for Airports
DESCRIPTION
108-1.1 This item shall consist of furnishing and installing power cables that are direct buried and furnishing and/or installing power cables within conduit or duct banks per these specifications at the locations shown on the plans. It includes excavation and backfill of trench for direct-buried cables only.
Also included are the installation of counterpoise wires, ground wires, ground rods and connections, cable splicing, cable marking, cable testing, and all incidentals necessary to place the cable in operating condition as a completed unit to the satisfaction of the Resident Project Representative (RPR). This item shall not include the installation of duct banks or conduit, trenching and backfilling for duct banks or conduit, or furnishing or installation of cable for FAA owned/operated facilities.
EQUIPMENT AND MATERIALS
108-2.1 General.
a. Airport lighting equipment and materials covered by advisory circulars (AC) shall be approved under the Airport Lighting Equipment Certification Program per AC 150/5345-53, current version. b. All other equipment and materials covered by other referenced specifications shall be subject to acceptance through manufacturer’s certification of compliance with the applicable specification, when requested by the RPR.
c. Manufacturer’s certifications shall not relieve the Contractor of the responsibility to provide materials per these specifications. Materials supplied and/or installed that do not comply with these specifications shall be removed (when directed by the RPR) and replaced with materials that comply with these specifications at the Contractor’s cost.
d. All materials and equipment used to construct this item shall be submitted to the RPR for approval prior to ordering the equipment. Submittals consisting of marked catalog sheets or shop drawings shall be provided. Submittal data shall be presented in a clear, precise and thorough manner. Original catalog sheets are preferred in PDF format. Photocopies are acceptable provided they are as good a quality as the original. Clearly and boldly mark each copy to identify products or models applicable to this project.
Indicate all optional equipment and delete any non-pertinent data. Submittals for components of electrical equipment and systems shall identify the equipment to which they apply on each submittal sheet.
Markings shall be made bold and clear with arrows or circles (highlighting is not acceptable). The Contractor is solely responsible for delays in the project that may accrue directly or indirectly from late submissions or resubmissions of submittals.
e. The data submitted shall be sufficient, in the opinion of the RPR, to determine compliance with the plans and specifications. The Contractor’s submittals shall be neatly bound in electronically submitted in pdf format. The RPR reserves the right to reject any and all equipment, materials, or procedures that do not meet the system design and the standards and codes, specified in this document. f. All equipment and materials furnished and installed under this section shall be guaranteed against defects in materials and workmanship for at least twelve (12) months from the date of final acceptance by the Owner. The defective materials and/or equipment shall be repaired or replaced, at the Owner’s discretion, with no additional cost to the Owner. The Contractor shall maintain a minimum insulation A.10.e
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resistance in accordance with paragraph 108-3.10e with isolation transformers connected in new circuits and new segments of existing circuits through the end of the contract warranty period when tested in accordance with AC 150/5340-26, Maintenance Airport Visual Aid Facilities, paragraph 5.1.3.1, Insulation Resistance Test.
108-2.2 Cable. Underground cable for airfield lighting facilities (runway and taxiway lights and signs) shall conform to the requirements of AC 150/5345-7, Specification for L-824 Underground Electrical Cable for Airport Lighting Circuits latest edition. Conductors for use on 6.6 ampere primary airfield lighting series circuits shall be single conductor, seven strand, #8 American wire gauge (AWG), L-824 Type C , 5,000 volts, non-shielded, with cross-linked polyethylene insulation. Conductors for use on 20 ampere primary airfield lighting series circuits shall be single conductor, seven strand, #6 AWG, L-824 Type C, 5,000 volts, non-shielded, with cross-linked polyethylene insulation. L-824 conductors for use on the L-830 secondary of airfield lighting series circuits shall be sized in accordance with the manufacturer’s recommendations. All other conductors shall comply with FAA and National Electric Code (NEC) requirements. Conductor sizes noted above shall not apply to leads furnished by manufacturers on airfield lighting transformers and fixtures.
Wire for electrical circuits up to 600 volts shall comply with Specification L-824 and/or Commercial Item Description A-A-59544A and shall be type THWN-2, 75°C for installation in conduit and RHW-2, 75°C for direct burial installations. Conductors for parallel (voltage) circuits shall be type and size and installed in accordance with NFPA-70, National Electrical Code.
Unless noted otherwise, all 600-volt and less non-airfield lighting conductor sizes are based on a 75°C, THWN-2, 600-volt insulation, copper conductors, not more than three single insulated conductors, in raceway, in free air. The conduit/duct sizes are based on the use of THWN-2, 600-volt insulated conductors. The Contractor shall make the necessary increase in conduit/duct sizes for other types of wire insulation. In no case shall the conduit/duct size be reduced. The minimum power circuit wire size shall be #12 AWG.
Conductor sizes may have been adjusted due to voltage drop or other engineering considerations.
Equipment provided by the Contractor shall be capable of accepting the quantity and sizes of conductors shown in the Contract Documents. All conductors, pigtails, cable step-down adapters, cable step-up adapters, terminal blocks and splicing materials necessary to complete the cable termination/splice shall be considered incidental to the respective pay items provided.
Cable type, size, number of conductors, strand and service voltage shall be as specified in the Contract Document.
108-2.3 Bare copper wire (counterpoise, bare copper wire ground and external ground rods). Wire for counterpoise or ground installations for airfield lighting systems shall be No. 1/0 stranded (FAA) or 6 AWG bare solid copper wire for counterpoise and/or No. 6 AWG insulated stranded for grounding bond wire per ASTM B3 and ASTM B8, and shall be bare copper wire. For voltage powered circuits, the equipment grounding conductor shall comply with NEC Article 250.
Ground rods shall be copper-clad steel. The ground rods shall be of the length and diameter specified on the plans, but in no case be less than 10 feetlong and 3/4 inch in diameter. 108-2.4 Cable connections. In-line connections or splices of underground primary cables shall be of the type called for on the plans, and shall be one of the types listed below. No separate payment will be made for cable connections.
a. The cast splice. A cast splice, employing a plastic mold and using epoxy resin equivalent to that manufactured by 3MTM Company, “Scotchcast” Kit No. 82-B, or an approved equivalent, used for potting the splice is acceptable.
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b. The field-attached plug-in splice. Field attached plug-in splices shall be installed as shown on the plans. The Contractor shall determine the outside diameter of the cable to be spliced and furnish appropriately sized connector kits and/or adapters. Tape or heat shrink tubing with integral sealant shall be in accordance with the manufacturer’s requirements. Primary Connector Kits manufactured by Amerace, Integro, or approved equal is acceptable.
c. The factory-molded plug-in splice. Specification for L-823 Connectors, Factory-Molded to Individual Conductors, is acceptable.
d. The taped or heat-shrink splice. Taped splices employing field-applied rubber, or synthetic rubber tape covered with plastic tape is acceptable. The rubber tape should meet the requirements of ASTM D4388 and the plastic tape should comply with Military Specification MIL-I-24391 or Commercial Item Description A-A-55809. Heat shrinkable tubing shall be heavy-wall, self-sealing tubing rated for the voltage of the wire being spliced and suitable for direct-buried installations. The tubing shall be factory coated with a thermoplastic adhesive-sealant that will adhere to the insulation of the wire being spliced forming a moisture- and dirt-proof seal. Additionally, heat shrinkable tubing for multi-conductor cables, shielded cables, and armored cables shall be factory kits that are designed for the application. Heat shrinkable tubing and tubing kits shall be manufactured by Tyco Electronics/ Raychem Corporation, Energy Division, or approved equivalent.
In all the above cases, connections of cable conductors shall be made using crimp connectors using a crimping tool designed to make a complete crimp before the tool can be removed. All L-823/L-824 splices and terminations shall be made per the manufacturer’s recommendations and listings.
All connections of counterpoise, grounding conductors and ground rods shall be made by the exothermic process or approved equivalent, except that a light base ground clamp connector shall be used for attachment to the light base. All exothermic connections shall be made per the manufacturer’s recommendations and listings.
108-2.5 Splicer qualifications. Every airfield lighting cable splicer shall be qualified in making airport cable splices and terminations on cables rated at or above 5,000 volts AC. The Contractor shall submit to the RPR proof of the qualifications of each proposed cable splicer for the airport cable type and voltage level to be worked on. Cable splicing/terminating personnel shall have a minimum of three (3) years continuous experience in terminating/splicing medium voltage cable. 108-2.6 Concrete. Concrete shall be proportioned, placed, and cured per Item P-610, Concrete for Miscellaneous Structures.
108-2.6 Flowable backfill. Flowable material used to backfill trenches for power cable trenches shall conform to the requirements of Item P-153, Controlled Low Strength Material. 108-2.8 Cable identification tags. Cable identification tags shall be made from a non-corrosive, non- metallic material with the circuit identification stamped or etched onto the tag. The tags shall be of the type as detailed on the plans.
108-2.9 Tape. Electrical tapes shall be ScotchTM Electrical Tapes –ScotchTM 88 (1-1/2 inch wide) and ScotchTM 130C® linerless rubber splicing tape (2-inch wide), as manufactured by the Minnesota Mining and Manufacturing Company (3MTM), or an approved equivalent. 108-2.10 Electrical coating. Electrical coating shall be Scotchkote™ as manufactured by 3MTM ,or an approved equivalent.
108-2.11 Existing circuits. Whenever the scope of work requires connection to an existing circuit, the existing circuit’s insulation resistance shall be tested, in the presence of the RPR. The test shall be performed per this item and prior to any activity that will affect the respective circuit. The Contractor shall record the results on forms acceptable to the RPR. When the work affecting the circuit is complete, the circuit’s insulation resistance shall be checked again, in the presence of the RPR. The Contractor shall A.10.e
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record the results on forms acceptable to the RPR. The second reading shall be equal to or greater than the first reading or the Contractor shall make the necessary repairs to the existing circuit to bring the second reading above the first reading. All repair costs including a complete replacement of the L-823 connectors, L-830 transformers and L-824 cable, if necessary, shall be borne by the Contractor. All test results shall be submitted in the Operation and Maintenance (O&M) Manual. 108-2.12 Detectable warning tape. Plastic, detectable, American Public Works Association (APWA) Red (electrical power lines, cables, conduit and lighting cable) with continuous legend tape shall be polyethylene film with a metalized foil core and shall be 3-6 inches (75-150 mm) wide. Detectable tape is incidental to the respective bid item. Detectable warning tape for communication cables shall be orange.
Detectable warning tape color code shall comply with the APWA Uniform Color Code.
CONSTRUCTION METHODS
108-3.1 General. The Contractor shall install the specified cable at the approximate locations indicated on the plans. Unless otherwise shown on the plans, all cable required to cross under pavements expected to carry aircraft loads shall be installed in concrete encased duct banks. Cable shall be run without splices, from fixture to fixture.
Cable connections between lights will be permitted only at the light locations for connecting the underground cable to the primary leads of the individual isolation transformers. The Contractor shall be responsible for providing cable in continuous lengths for home runs or other long cable runs without connections unless otherwise authorized in writing by the RPR or shown on the plans.
In addition to connectors being installed at individual isolation transformers, L-823 cable connectors for maintenance and test points shall be installed at locations shown on the plans. Cable circuit identification markers shall be installed on both sides of the L-823 connectors installed and on both sides of slack loops where a future connector would be installed.
Provide not less than 3 feet of cable slack on each side of all connections, isolation transformers, light units, and at points where cable is connected to field equipment. Where provisions must be made for testing or for future above grade connections, provide enough slack to allow the cable to be extended at least one foot vertically above the top of the access structure. This requirement also applies where primary cable passes through empty light bases, junction boxes, and access structures to allow for future connections, or as designated by the RPR.
Primary airfield lighting cables installed shall have cable circuit identification markers attached on both sides of each L-823 connector and on each airport lighting cable entering or leaving cable access points, such as manholes, hand holes, pull boxes, junction boxes, etc. Markers shall be of sufficient length for imprinting the cable circuit identification legend on one line, using letters not less than 1/4 inch in size.
The cable circuit identification shall match the circuits noted on the construction plans. 108-3.2 Installation in duct banks or conduits. This item includes the installation of the cable in duct banks or conduit per the following paragraphs. The maximum number and voltage ratings of cables installed in each single duct or conduit, and the current-carrying capacity of each cable shall be per the latest version of the National Electric Code, or the code of the local agency or authority having jurisdiction.
The Contractor shall make no connections or splices of any kind in cables installed in conduits or duct banks.
Unless otherwise designated in the plans, where ducts are in tiers, use the lowest ducts to receive the cable first, with spare ducts left in the upper levels. Check duct routes prior to construction to obtain assurance that the shortest routes are selected, and that any potential interference is avoided.
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Duct banks or conduits shall be installed as a separate item per Item L-110, Airport Underground Electrical Duct Banks and Conduit. The Contractor shall run a mandrel through duct banks or conduit prior to installation of cable to ensure that the duct bank or conduit is open, continuous and clear of debris. The mandrel size shall be compatible with the conduit size. The Contractor shall swab out all conduits/ducts and clean light bases, manholes, etc., interiors immediately prior to pulling cable. Once cleaned and swabbed, the light bases and all accessible points of entry to the duct/conduit system shall be kept closed except when installing cables. Cleaning of ducts, light bases, manholes, etc., is incidental to the pay item of the item being cleaned. All raceway systems left open, after initial cleaning, for any reason shall be re-cleaned at the Contractor’s expense. The Contractor shall verify existing ducts proposed for use in this project as clear and open. The Contractor shall notify the RPR of any blockage in the existing ducts.
The cable shall be installed in a manner that prevents harmful stretching of the conductor, damage to the insulation, or damage to the outer protective covering. The ends of all cables shall be sealed with moisture-seal tape providing moisture-tight mechanical protection with minimum bulk, or alternately, heat shrinkable tubing before pulling into the conduit and it shall be left sealed until connections are made. Where more than one cable is to be installed in a conduit, all cable shall be pulled in the conduit at the same time. The pulling of a cable through duct banks or conduits may be accomplished by hand winch or power winch with the use of cable grips or pulling eyes. Maximum pulling tensions shall not exceed the cable manufacturer’s recommendations. A non-hardening cable-pulling lubricant recommended for the type of cable being installed shall be used where required.
The Contractor shall submit the recommended pulling tension values to the RPR prior to any cable installation. If required by the RPR, pulling tension values for cable pulls shall be monitored by a dynamometer in the presence of the RPR. Cable pull tensions shall be recorded by the Contractor and reviewed by the RPR. Cables exceeding the maximum allowable pulling tension values shall be removed and replaced by the Contractor at the Contractor’s expense.
The manufacturer’s minimum bend radius or NEC requirements (whichever is more restrictive) shall apply. Cable installation, handling and storage shall be per manufacturer’s recommendations. During cold weather, particular attention shall be paid to the manufacturer’s minimum installation temperature. Cable shall not be installed when the temperature is at or below the manufacturer’s minimum installation temperature. At the Contractor’s option, the Contractor may submit a plan, for review by the RPR, for heated storage of the cable and maintenance of an acceptable cable temperature during installation when temperatures are below the manufacturer’s minimum cable installation temperature.
Cable shall not be dragged across base can or manhole edges, pavement or earth. When cable must be coiled, lay cable out on a canvas tarp or use other appropriate means to prevent abrasion to the cable jacket.
108-3.3 Installation of direct-buried cable in trenches. Unless otherwise specified, the Contractor shall not use a cable plow for installing the cable. Cable shall be unreeled uniformly in place alongside or in the trench and shall be carefully placed along the bottom of the trench. The cable shall not be unreeled and pulled into the trench from one end. Slack cable sufficient to provide strain relief shall be placed in the trench in a series of S curves. Sharp bends or kinks in the cable shall not be permitted.
Where cables must cross over each other, a minimum of 3 inches vertical displacement shall be provided with the topmost cable depth at or below the minimum required depth below finished grade. a. Trenching. Where turf is well established and the sod can be removed, it shall be carefully stripped and properly stored. Trenches for cables may be excavated manually or with mechanical trenching equipment. Walls of trenches shall be essentially vertical so that a minimum of surface is disturbed. Graders shall not be used to excavate the trench with their blades. The bottom surface of trenches shall be essentially smooth and free from coarse aggregate. Unless otherwise specified, cable A.10.e
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trenches shall be excavated to a minimum depth of 18 inches below finished grade per NEC Table 300.5, except as follows:
· When off the airport or crossing under a roadway or driveway, the minimum depth shall be 36 inches unless otherwise specified.
· Minimum cable depth when crossing under a railroad track, shall be 42 inches unless otherwise specified.
Dewatering necessary for cable installation, erosion and turbidity control, per Federal, state, and local requirements is incidental to its respective pay items as part of Item L-108. The cost of all excavation regardless of type of material encountered, shall be included in the unit price bid for the L-108 Item.
The Contractor shall excavate all cable trenches to a width not less than 6 inches. Unless otherwise specified on the plans, all cables in the same location and running in the same general direction shall be installed in the same trench.
When rock is encountered, the rock shall be removed to a depth of at least 3 inches below the required cable depth and it shall be replaced with bedding material of earth or sand containing no mineral aggregate particles that would be retained on a 1/4-inch sieve. Flowable backfill material may alternatively be used.
Duct bank or conduit markers temporarily removed for trench excavations shall be replaced as required.
It is the Contractor’s responsibility to locate existing utilities within the work area prior to excavation.
Where existing active cables cross proposed installations, the Contractor shall ensure that these cables are adequately protected. Where crossings are unavoidable, no splices will be allowed in the existing cables, except as specified on the plans. Installation of new cable where such crossings must occur shall proceed as follows:
(1) Existing cables shall be located manually. Unearthed cables shall be inspected to assure absolutely no damage has occurred.
(2) Trenching, etc., in cable areas shall then proceed, with approval of the RPR, with care taken to minimize possible damage or disruption of existing cable, including careful backfilling in area of cable.
In the event that any previously identified cable is damaged during the course of construction, the Contractor shall be responsible for the complete repair or replacement. b. Backfilling. After the cable has been installed, the trench shall be backfilled. The first layer of backfill in the trench shall encompass all cables ; be 3 inches (75 mm) deep, loose measurement; and shall be either earth or sand containing no mineral aggregate particles that would be retained on a 1/4-inch (6.3 mm) sieve. This layer shall not be compacted. The second layer shall be 5 inches (125 mm) deep, loose measurement, and shall contain no particles that would be retained on a one inch (25.0 mm) sieve. The remaining third and subsequent layers of backfill shall not exceed 8 inches (20 cm) of loose measurement and be excavated or imported material and shall not contain stone or aggregate larger than 4 inches (100 mm) maximum diameter.
The second and subsequent layers shall be thoroughly tamped and compacted to at least the density of the adjacent material. If the cable is to be installed in locations or areas where other compaction requirements are specified (under pavements, embankments, etc.) the backfill compaction shall be backfilled with controlled low strength material (CLSM) in accordance with P-153.
Trenches shall not contain pools of water during backfilling operations. The trench shall be completely backfilled and tamped level with the adjacent surface, except that when turf is to be established over the trench, the backfilling shall be stopped at an appropriate depth consistent with the A.10.e
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type of turfing operation to be accommodated. A proper allowance for settlement shall also be provided.
Any excess excavated material shall be removed and disposed of per the plans and specifications.
Underground electrical warning (caution) tape shall be installed in the trench above all direct-buried cable. Contractor shall submit a sample of the proposed warning tape for acceptance by the RPR. If not shown on the plans, the warning tape shall be located 6 inches (150 mm) above the direct-buried cable or the counterpoise wire if present. A 3-6 inch (75 - 150 mm) wide polyethylene film detectable tape, with a metalized foil core, shall be installed above all direct buried cable or counterpoise. The tape shall be of the color and have a continuous legend as indicated on the plans. The tape shall be installed 8 inches (200 mm) minimum below finished grade.
c. Restoration. Following restoration of all trenching near airport movement surfaces, the Contractor shall visually inspect the area for foreign object debris (FOD) and remove any that is found. Where soil and sod has been removed, it shall be replaced as soon as possible after the backfilling is completed. All areas disturbed by work shall be restored to its original condition. The restoration shall include the mulching as shown on the plans. The Contractor shall be held responsible for maintaining all disturbed surfaces and replacements until final acceptance. When trenching is through paved areas, restoration shall be equal to existing conditions. If the cable is to be installed in locations or areas where other compaction requirements are specified (under pavements, embankments, etc.) the backfill compaction shall be backfilled with controlled low strength material (CLSM) in accordance with P-153. Restoration shall be considered incidental to the pay item of which it is a component part. 108-3.4 Cable markers for direct-buried cable. The location of direct buried circuits shall be marked by a concrete slab marker, 2 feet square and 4-6 inch thick, extending approximately one inch above the surface. Each cable run from a line of lights and signs to the equipment vault shall be marked at approximately every 200 feet along the cable run, with an additional marker at each change of direction of cable run. All other direct-buried cable shall be marked in the same manner. Cable markers shall be installed directly above the cable. The Contractor shall impress the word “CABLE” and directional arrows on each cable marking slab. The letters shall be approximately 4 inches high and 3 inches wide, with width of stroke 1/2 inch and 1/4 inch deep. Stencils shall be used for cable marker lettering; no hand lettering shall be permitted.
At the location of each underground cable connection/splice, except at lighting units, or isolation transformers, a concrete marker slab shall be installed to mark the location of the connection/splice. The Contractor shall impress the word “SPLICE” on each slab. The Contractor also shall impress additional circuit identification symbols on each slab as directed by the RPR. All cable markers and splice markers shall be painted international orange. Paint shall be specifically manufactured for uncured exterior concrete. After placement, all cable or splice markers shall be given one coat of high-visibility aviation orange paint as approved by the RPR. Furnishing and installation of cable markers is incidental to the respective cable pay item.
108-3.5 Splicing. Connections of the type shown on the plans shall be made by experienced personnel regularly engaged in this type of work and shall be made as follows:
a. Cast splices. These shall be made by using crimp connectors for jointing conductors. Molds shall be assembled, and the compound shall be mixed and poured per the manufacturer’s instructions and to the satisfaction of the RPR.
b. Field-attached plug-in splices. These shall be assembled per the manufacturer’s instructions.
These splices shall be made by plugging directly into mating connectors. The joint where the connectors come together shall be finished by one of the following methods: (1) wrapped with at least one layer of rubber or synthetic rubber tape and one layer of plastic tape, one-half lapped, extending at least 1-1/2 inches on each side of the joint (2) Covered with heat shrinkable tubing with integral sealant extending at A.10.e
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least 1-1/2 inches on each side of the joint or (3) On connector kits equipped with water seal flap; roll- over water seal flap to sealing position on mating connector. c. Factory-molded plug-in splices. These shall be made by plugging directly into mating connectors.
The joint where the connectors come together shall be finished by one of the following methods: (1) Wrapped with at least one layer of rubber or synthetic rubber tape and one layer of plastic tape, one-half lapped, extending at least 1-1/2 inches on each side of the joint. (2) Covered with heat shrinkable tubing with integral sealant extending at least 1-1/2 inches on each side of the joint. or (3) On connector kits so equipped with water seal flap; roll-over water seal flap to sealing position on mating connector. d. Taped or heat-shrink splices. A taped splice shall be made in the following manner:
Bring the cables to their final position and cut so that the conductors will butt. Remove insulation and jacket allowing for bare conductor of proper length to fit compression sleeve connector with 1/4 inch of bare conductor on each side of the connector. Prior to splicing, the two ends of the cable insulation shall be penciled using a tool designed specifically for this purpose and for cable size and type. Do not use emery paper on splicing operation since it contains metallic particles. The copper conductors shall be thoroughly cleaned. Join the conductors by inserting them equidistant into the compression connection sleeve. Crimp conductors firmly in place with crimping tool that requires a complete crimp before tool can be removed. Test the crimped connection by pulling on the cable. Scrape the insulation to assure that the entire surface over which the tape will be applied (plus 3 inches on each end) is clean. After scraping, wipe the entire area with a clean lint-free cloth. Do not use solvents.
Apply high-voltage rubber tape one-half lapped over bare conductor. This tape should be tensioned as recommended by the manufacturer. Voids in the connector area may be eliminated by highly elongating the tape, stretching it just short of its breaking point. The manufacturer's recommendation for stretching tape during splicing shall be followed. Always attempt to exactly half-lap to produce a uniform buildup.
Continue buildup to 1-1/2 times cable diameter over the body of the splice with ends tapered a distance of approximately one inch (25 mm) over the original jacket. Cover rubber tape with two layers of vinyl pressure-sensitive tape one-half lapped. Do not use glyptol or lacquer over vinyl tape as they react as solvents to the tape. No further cable covering or splice boxes are required.
Heat shrinkable tubing shall be installed following manufacturer’s instructions. Direct flame heating shall not be permitted unless recommended by the manufacturer. Cable surfaces within the limits of the heat- shrink application shall be clean and free of contaminates prior to application. e. Assembly. Surfaces of equipment or conductors being terminated or connected shall be prepared in accordance with industry standard practice and manufacturer’s recommendations. All surfaces to be connected shall be thoroughly cleaned to remove all dirt, grease, oxides, nonconductive films, or other foreign material. Paints and other nonconductive coatings shall be removed to expose base metal. Clean all surfaces at least 1/4 inch (6.4 mm) beyond all sides of the larger bonded area on all mating surfaces.
Use a joint compound suitable for the materials used in the connection. Repair painted/coated surface to original condition after completing the connection.
108-3.6 Bare counterpoise wire installation for lightning protection and grounding. As shown on the plans or included in the job specifications, bare # 1/0 stranded (FAA) or solid #6 AWG copper counterpoise wire shall be installed for lightning protection of the underground cables. a. Isolation. –Counterpoise wire shall be installed in the same trench for the entire length of buried cable, conduits and duct banks that are installed to contain airfield cables. The counterpoise is centered over the cable/conduit/duct to be protected.
The counterpoise conductor shall be installed no less than 8 inches minimum or 12 inches maximum above the raceway or cable to be protected, except as permitted below:
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(1) The minimum counterpoise conductor height above the raceway or cable to be protected shall be permitted to be adjusted subject to coordination with the airfield lighting and pavement designs. (2) The counterpoise conductor height above the protected raceway(s) or cable(s) shall be calculated to ensure that the raceway or cable is within a 45-degree area of protection, (45 degrees on each side of vertical creating a 90 degree angle).
The counterpoise conductor shall not be bonded to each metallic light base, mounting stake, and metallic airfield lighting component except for FAA faclities. An additional grounding electrode is required at each light base, handhole or mounting stake. The grounding electrode is bonded to the light base or mounting stake with a 6 AWG solid copper conductor.
All components rise and fall at the same potential; with no potential difference, no damaging arcing and no damaging current flow.
Reference FAA STD-019E, Lightning and Surge Protection, Grounding Bonding and Shielding Requirements for Facilities and Electronic Equipment, Part 4.1.1.7 for counterpoise installation for FAA facilities.
b.Other Counterpoise Requirements. Grounding electrodes may be rods, ground dissipation plates, radials, or other electrodes listed in the NFPA 70 (NEC) or NFPA 780.
Where raceway is installed by the directional bore, jack and bore, or other drilling method, the counterpoise conductor shall be permitted to be installed concurrently with the directional bore, jack and bore, or other drilling method raceway, external to the raceway or sleeve.
The counterpoise wire shall also be exothermically welded to ground rods installed as shown on the plans but not more than 500 feet apart around the entire circuit. The counterpoise system shall be continuous and terminate at the transformer vault or at the power source. It shall be securely attached to the vault or equipment external ground ring or other made electrode-grounding system. The connections shall be made as shown on the plans and in the specifications.
The new counterpoise conductors shall be interconnected to existing counterpoise conductors at each intersection of the new and existing airfield lighting counterpoise systems. d. Parallel Voltage Systems. Provide grounding and bonding in accordance with NFPA 70, National Electrical Code.
108-3.7 Counterpoise installation above multiple conduits and duct banks. Counterpoise wires shall be installed above multiple conduits/duct banks for airfield lighting cables, with the intent being to provide a complete area of protection over the airfield lighting cables. When multiple conduits and/or duct banks for airfield cable are installed in the same trench, the number and location of counterpoise wires above the conduits shall be adequate to provide a complete area of protection measured 45 degrees each side of vertical.
Where duct banks pass under pavement to be constructed in the project, the counterpoise shall be placed above the duct bank. Reference details on the construction plans. 108-3.8 Counterpoise installation at existing duct banks. When airfield lighting cables are indicated on the plans to be routed through existing duct banks, the new counterpoise wiring shall be terminated at ground rods at each end of the existing duct bank where the cables being protected enter and exit the duct bank. The new counterpoise conductor shall be bonded to the existing counterpoise system. 108-3.9 Bare Wire Installation for Light Base Ground. As shown on the details or included in the job specifications, a bare #6 AWG copper grounding wire shall be installed for safety (personnel protection) per AC-150-5340-30 (Latest Edition), “Design and Installation Details for Airport Visual Aids”. The safety ground shall be connected to the external ground lug on the fixture base and to a ground rod installed beside the fixture. The resistance to ground of the base must be 25 ohms or less per measurement A.10.e
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with a ground tester. See the NEC Handbook for additional information about grounding electrode installation and testing. The light base ground shall be incidental to the installation of each base, light or sign.
100-5.3 108-3.10 Insulated Wire Installation for Light Fixture Bonding. As shown on the details or included in the job specifications, an insulated #6 AWG copper grounding wire shall be installed for safety (personnel protection) per AC-150-5340-30 (Latest Edition), “Design and Installation Details for Airport Visual Aids”. The safety ground shall be connected to the ground lug on the fixture base plate or fixture to the internal ground lug on the base can. The light fixture bond shall be incidental to the installation of each base, light or sign.
108-3.11 Exothermic bonding. Bonding of counterpoise wire shall be by the exothermic welding process or equivalent method accepted by the RPR. Only personnel experienced in and regularly engaged in this type of work shall make these connections.
Contractor shall demonstrate to the satisfaction of the RPR, the welding kits, materials and procedures to be used for welded connections prior to any installations in the field. The installations shall comply with the manufacturer’s recommendations and the following:
a. All slag shall be removed from welds.
b. Using an exothermic weld to bond the counterpoise to a lug on a galvanized light base is not recommended unless the base has been specially modified. Consult the manufacturer’s installation directions for proper methods of bonding copper wire to the light base. See AC 150/5340-30 for galvanized light base exception.
c. If called for in the plans, all buried copper and weld material at weld connections shall be thoroughly coated with 6 mm of 3MTM ScotchkoteTM, or approved equivalent, or coated with coal tar Bitumastic® material to prevent surface exposure to corrosive soil or moisture. 108-3.12 Testing. The Contractor shall furnish all necessary equipment and appliances for testing the airport electrical systems and underground cable circuits before and after installation. The Contractor shall perform all tests in the presence of the RPR. The Contractor shall demonstrate the electrical characteristics to the satisfaction of the RPR. All costs for testing are incidental to the respective item being tested. For phased projects, the tests must be completed by phase. The Contractor must maintain the test results throughout the entire project as well as during the warranty period that meet the following:
a. Earth resistance testing methods shall be submitted to the RPR for approval. Earth resistance testing results shall be recorded on an approved form and testing shall be performed in the presence of the RPR. All such testing shall be at the sole expense of the Contractor. b. Should the counterpoise or ground grid conductors be damaged or suspected of being damaged by construction activities the Contractor shall test the conductors for continuity with a low resistance ohmmeter. The conductors shall be isolated such that no parallel path exists and tested for continuity. The RPR shall approve of the test method selected. All such testing shall be at the sole expense of the Contractor.
After installation, the Contractor shall test and demonstrate to the satisfaction of the RPR the following:
c. That all affected lighting power and control circuits (existing and new) are continuous and free from short circuits.
d. That all affected circuits (existing and new) are free from unspecified grounds. e. That the insulation resistance to ground of all new non-grounded high voltage series circuits or cable segments is not less than 100 megohms. Verify continuity of all series airfield lighting circuits prior to energization.
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f. That the insulation resistance to ground of all new non-grounded conductors of new multiple circuits or circuit segments is not less than 100 megohms. g. That all affected circuits (existing and new) are properly connected per applicable wiring diagrams. h. That all affected circuits (existing and new) are operable. Tests shall be conducted that include operating each control not less than 10 times and the continuous operation of each lighting and power circuit for not less than 1/2 hour.
i. That the impedance to ground of each ground rod does not exceed 25 ohms prior to establishing connections to other ground electrodes. The fall-of-potential ground impedance test shall be used, as described by American National Standards Institute/Institute of Electrical and Electronic Engineers (ANSI/IEEE) Standard 81, to verify this requirement. As an alternate, clamp-on style ground impedance test meters may be used to satisfy the impedance testing requirement. Test equipment and its calibration sheets shall be submitted for review and approval by the RPR prior to performing the testing.
Two copies of tabulated results of all cable tests performed shall be supplied by the Contractor to the RPR. Where connecting new cable to existing cable, insulation resistance tests shall be performed on the new cable prior to connection to the existing circuit.
There are no approved “repair” procedures for items that have failed testing other than complete replacement.
METHOD OF MEASUREMENT
108-4.1 Cable or counterpoise wire installed in trench, duct bank or conduit shall be measured by the number of linear feet installed, tested and ready for operation, and accepted as satisfactory. Separate measurement shall be made for each cable or counterpoise wire installed in trench, duct bank or conduit.
The measurement for this item shall include additional quantities required for slack. No separate payment shall be made for ground rods or equipment grounding.
BASIS OF PAYMENT
108-5.1 Payment will be made at the contract unit price for trenching, cable and bare counterpoise wire installed in trench (direct-buried), or cable and equipment ground installed in duct bank or conduit, in place by the Contractor and accepted by the RPR. This price shall be full compensation for furnishing all materials and for all preparation and installation of these materials, and for all labor, equipment, tools, and incidentals, including ground rods and ground connectors and trench marking tape, necessary to complete this item.
Payment will be made under:
Item L-108-5.1 No. 8 AWG , 5 kV, L-824, Type C Cable, Installed in Trench, Duct Bank or Conduit - per liner foot
Item L-108-5.2 No. 6 AWG, Solid, Bare Copper Counterpoise Wire, Including Connections - per linear foot
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REFERENCES
The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.
Advisory Circulars (AC)
AC 150/5340-26 Maintenance of Airport Visual Aid Facilities AC 150/5340-30 Design and Installation Details for Airport Visual Aids AC 150/5345-7 Specification for L-824 Underground Electrical Cable for Airport Lighting Circuits
AC 150/5345-26 Specification for L-823 Plug and Receptacle, Cable Connectors AC 150/5345-53 Airport Lighting Equipment Certification Program Commercial Item Description
A-A-59544A Cable and Wire, Electrical (Power, Fixed Installation) A-A-55809 Insulation Tape, Electrical, Pressure-Sensitive Adhesive, Plastic ASTM International (ASTM)
ASTM B3 Standard Specification for Soft or Annealed Copper Wire ASTM B8 Standard Specification for Concentric-Lay-Stranded Copper Conductors, Hard, Medium-Hard, or Soft
ASTM B33 Standard Specification for Tin-Coated Soft or Annealed Copper Wire for Electrical Purposes
ASTM D4388 Standard Specification for Nonmetallic Semi-Conducting and Electrically Insulating Rubber Tapes
Mil Spec
MIL-PRF-23586F Performance Specification: Sealing Compound (with Accelerator), Silicone Rubber, Electrical
MIL-I-24391 Insulation Tape, Electrical, Plastic, Pressure Sensitive National Fire Protection Association (NFPA)
NFPA-70 National Electrical Code (NEC)
NFPA-780 Standard for the Installation of Lightning Protection Systems American National Standards Institute (ANSI)/Institute of Electrical and Electronics Engineers (IEEE) ANSI/IEEE STD 81 IEEE Guide for Measuring Earth Resistivity, Ground Impedance, and Earth Surface Potentials of a Ground System
Federal Aviation Administration Standard
FAA STD-019E Lightning and Surge Protection, Grounding Bonding and Shielding Requirements for Facilities and Electronic Equipment
END OF ITEM L-108
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Item L-109 Airport Transformer Vault and Vault Equipment 518 Item L-109 Airport Transformer Vault and Vault Equipment
DESCRIPTION
109-1.1 This item shall consist of the installation of new constant current regulator (CCR) for airfield circuits indicated on the plans. This work shall also include the furnishing of all vault equipment, wiring, electrical buses, cable, conduit, potheads, and grounding systems. This work shall also include the painting of equipment and conduit; the marking and labeling of equipment and the labeling or tagging of wires; the testing of the installation; and the furnishing of all incidentals necessary to place it in operating condition as a completed unit to the satisfaction of the RPR.
EQUIPMENT AND MATERIALS
109-2.1 General.
a. Airport lighting equipment and materials covered by advisory circulars (AC) shall be certified in AC 150/5345-53, Airport Lighting Equipment Certification Program (ALECP) and listed in the ALECP Addendum.
b. All other equipment and materials covered by other referenced specifications shall be subject to acceptance through manufacturer’s certification of compliance with the applicable specification when requested by the RPR.
c. Manufacturer’s certifications shall not relieve the Contractor of the responsibility to provide materials per these specifications. Materials supplied and/or installed that do not comply with these specifications shall be removed (when directed by the RPR) and replaced with materials that comply with these specifications at the Contractor’s cost.
d. All materials and equipment used to construct this item shall be submitted to the RPR for approval prior to ordering the equipment. Submittals consisting of marked catalog sheets or shop drawings shall be provided in electronic format. Submittal data shall be presented in a clear, precise and thorough manner.
Clearly and boldly mark each copy to identify products or models applicable to this project. Indicate all optional equipment and delete any non-pertinent data. Submittals for components of electrical equipment and systems shall identify the equipment to which they apply on each submittal sheet. Markings shall be made bold and clear with arrows or circles (highlighting is not acceptable). The Contractor is solely responsible for delays in the project that may accrue directly or indirectly from late submissions or resubmissions of submittals.
e. The data submitted shall be sufficient, in the opinion of the RPR, to determine compliance with the plans and specifications. The Contractor’s submittals shall provided in electronic pdf format, tabbed by specification section. The RPR reserves the right to reject any and all equipment, materials or procedures that do not meet the system design and the standards and codes, specified in this document. f. All equipment and materials furnished and installed under this section shall be guaranteed against defects in materials and workmanship for a period of at least 12 months from final acceptance by the Owner. The defective materials and/or equipment shall be repaired or replaced, at the Owner’s discretion, with no additional cost to the Owner.
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Item L-109 Airport Transformer Vault and Vault Equipment 519
CONSTRUCTION OF VAULT AND PREFABRICATED METAL HOUSING
109-3.1 Electrical vault building. The electrical vault building must comply with NEC Article 110.31, Enclosure for Electrical Installations, Item (A) Electrical Vaults. Construct the building of materials having adequate structural strength for the conditions and installed location, has a minimum fire rating of two or three hours as determined by the authority having jurisdiction (AHJ), and is bullet resistant to minimum UL 752 Level 4.
109-3.2 FAA-approved equipment. Certain items of airport lighting equipment installed in vaults are covered by individual ACs listed below:
AC 150/5345-3 Specification for L-821, Panels for Remote Control of Airport Lighting AC 150/5345-5 Circuit Selector Switch
AC 150/5345-7 Specification for L-824 Underground Electrical Cable for Airport Lighting Circuits
AC 150/5345-10 Specification for Constant Current Regulators and Regulator Monitors AC 150/5345-13 Specification for L-841 Auxiliary Relay Cabinet Assembly for Pilot Control of Airport Lighting Circuits.
AC 150/5345-49 Specification for L-854, Radio Control Equipment AC 150/5345-56 Specification for L-890 Airport Lighting Control and Monitoring System (ALCMS)
109-3.3 Other electrical equipment. Distribution transformers, oil switches, cutouts, relays, terminal blocks, transfer relays, circuit breakers, and all other regularly used commercial items of electrical equipment not covered by FAA equipment specifications and ACs shall conform to the applicable rulings and standards of the Institute of Electrical and Electronic Engineers (IEEE) or the National Electrical Manufacturers Association (NEMA). When specified, test reports from a testing laboratory indicating that the equipment meets the specifications shall be supplied. In all cases, equipment shall be new and a first- grade product. This equipment shall be supplied in the quantities required for the specific project and shall incorporate the electrical and mechanical characteristics specified in the proposal and plans.
Equipment selected and installed by the Contractor shall maintain the interrupting current rating of the existing systems or specified rating whichever is greater. 109-3.4 Wire. Wire (in conduit) rated up to 5,000 volts shall be per AC 150/5345-7, Specification for L- 824 Underground Electrical Cables for Airport Lighting Circuits. For ratings up to 600 volts, moisture and heat resistant thermoplastic wire conforming to Commercial Item Description A-A-59544A Type THWN-2 shall be used. The wires shall be of the type, size, number of conductors, and voltage shown in the plans or in the proposal.
a. Control circuits. Unless otherwise indicated on the plans, wire shall be not less than No. 12 American wire gauge (AWG) and shall be insulated for 600 volts. If telephone control cable is specified, No. 19 AWG telephone cable per ANSI/Insulated Cable Engineers Association (ICEA) S-85-625 specifications shall be used.
b. Power circuits.
(1) 600 volts maximum – Wire shall be No. 6 AWG or larger and insulated for at least 600 volts. (2) 3,000 volts maximum – Wire shall be No. 6 AWG or larger and insulated for at least 3,000 volts.
(3) Over 3,000 volts-Wire shall be No. 6 AWG or larger and insulated for at least the circuit voltage.
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Item L-109 Airport Transformer Vault and Vault Equipment 520 109-3.5 Short circuit / coordination / device evaluation / arc flash analysis. The Contractor shall, based upon the equipment provided, include as a part of the submittal process the electrical system “Short Circuit / Coordination / Device evaluation / Arc Flash Analysis”. The analysis shall be performed by the equipment manufacturer and submitted in a written report. The analysis shall be signed and sealed by a registered professional Engineer from the state in which the project is located. The analysis shall comply with NFPA-70E and IEEE 1584.
The analysis will include: one line diagrams, short circuit analysis, coordination analysis, equipment evaluation, arc flash analysis and arc flash labels containing at a minimum, equipment name, voltage/current rating, available incident energy and flash protection boundary.
The selected firms field service Engineer shall perform data gathering for analysis completion and device settings, perform device setting as recommended by the analysis and will furnish and install the arc flash labels. The components worst case incident energy will be considered the available arc flash energy at that specific point in the system. Submit three written copies and one electronic copy of the report.
CONSTRUCTION METHODS
INSTALLATION OF EQUIPMENT IN VAULT OR PREFABRICATED METAL HOUSING 109-4.1 General. The Contractor shall furnish, install, and connect all equipment, equipment accessories, conduit, cables, wires, buses, grounds, and support necessary to ensure a complete and operable electrical distribution center for the airport lighting system as specified herein and shown in the plans. When specified, an emergency power supply and transfer switch shall be provided and installed.
The equipment installation and mounting shall comply with the requirements of the National Electrical Code and local code agency having jurisdiction. All electrical work shall comply with the NEC and local code agency having jurisdiction including the separation of under 600V work from 5,000V work.” 109-4.2 Power supply equipment. Transformers, regulators, booster transformers, and other power supply equipment items shall be furnished and installed at the location shown in the plans or as directed by the RPR. The power supply equipment shall be set on steel “H” sections, “I” beams, channels, or concrete blocks to provide a minimum space of 1-1/2 inch (38 mm) between the equipment and the floor.
The equipment shall be placed so as not to obstruct the oil-sampling plugs of the oil-filled units; and name-plates shall, so far as possible, not be obscured.
If specified in the plans and specifications, equipment for an alternate power source or an emergency power generator shall be furnished and installed. The alternate power supply installation shall include all equipment, accessories, an automatic changeover switch, and all necessary wiring and connections. The emergency power generator set shall be the size and type specified. 109-4.3 Switchgear and panels. Oil switches, fused cutouts, relays, transfer switches, panels, panel boards, and other similar items shall be furnished and installed at the location shown in the plans or as directed by the RPR. Wall or ceiling mounted items shall be attached to the wall or ceiling with galvanized bolts of not less than 3/8-inch (9 mm) diameter engaging metal expansion shields or anchors in masonry or concrete vaults.
109-4.4 Duct and conduit. The Contractor shall furnish and install square-type exposed metallic ducts with hinged covers for the control circuits in the vault. These shall be mounted along the walls behind all floor-mounted equipment and immediately below all wall-mounted equipment. The hinged covers shall be placed to open from the front side with the hinges at the front bottom.
Wall brackets for square ducts shall be installed at all joints 2 feet (60 cm) or more apart with intermediate brackets as specified. Conduit shall be used between square ducts and equipment or between A.10.e
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Item L-109 Airport Transformer Vault and Vault Equipment 521 different items of equipment when the equipment is designed for conduit connection. When the equipment is not designed for conduit connection, conductors shall enter the square-type control duct through insulating bushings in the duct or on the conduit risers. 109-4.5 Wiring and connections. The Contractor shall make all necessary electrical connections in the vault per the wiring diagrams furnished and as directed by the RPR. In wiring to the terminal blocks, the Contractor shall leave sufficient extra length on each control lead to make future changes in connections at the terminal block. This shall be accomplished by running each control lead the longest way around the box to the proper terminal. Leads shall be neatly laced in place. 109-4.6 Marking and labeling. All equipment, control wires, terminal blocks, etc., shall be tagged, marked, or labeled as specified below:
a. Wire identification. The Contractor shall furnish and install self-sticking wire labels or identifying tags on all control wires at the point where they connect to the control equipment or to the terminal blocks. Wire labels, if used, shall be of the self-sticking preprinted type and of the manufacturer’s recommended size for the wire involved. Identification -markings designated in the plans shall be followed. Tags, if used, shall be of fiber not less than 3/4 inch (19 mm) in diameter and not less than 1/32 inch (1 mm) thick. Identification markings designated in the plans shall be stamped on tags by means of small tool dies. Each tag shall be securely tied to the proper wire by a nonmetallic cord. b. Labels. The Contractor shall stencil identifying labels on the cases of regulators, breakers, and distribution and control relay cases with white oil paint as designated by the RPR. The letters and numerals shall be not less than one inch (25 mm) in height and shall be of proportionate width. The Contractor shall also mark the correct circuit designations per the wiring diagram on the terminal marking strips, which are a part of each terminal block.
METHOD OF MEASUREMENT
109-5.1 The quantity of equipment to be paid for under this item shall consist of all equipment installed, connected and accepted as a complete unit ready for operation within an existing vault or prefabricated metal housing. The regulator will be 240V, 3 step, ferroresonant with new 50A/2P circuit breaker installed in location of existing Runway 6-24 constant current regulator within existing lighting vault.
BASIS OF PAYMENT
109-5.1 Payment will be made at the contract unit price for each completed and accepted ferroresonant Constant Current Regulator. This price shall be full compensation for furnishing all materials and for all preparation, assembly, and installation of these materials, and for all labor, equipment, tools, and incidentals necessary to complete the item.
Payment will be made under:
Item L-109-6.1 New 7.5 kW Ferroresonant Regulator - per each A.10.e
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Item L-110 Airport Underground Electrical Duct Banks and Conduits 522 Item L-110 Airport Underground Electrical Duct Banks and Conduits
DESCRIPTION
110-1.1 This item shall consist of underground electrical conduits and duct banks (single or multiple conduits encased in concrete, buried in sand or directionally bored) installed per this specification at the locations and per the dimensions, designs, and details shown on the plans. This item shall include furnishing and installing of all underground electrical duct banks and individual and multiple underground conduits. It shall also include all trenching, backfilling, removal, and restoration of any paved or turfed areas; concrete encasement, mandrelling, pulling lines, duct markers, plugging of conduits, and the testing of the installation as a completed system ready for installation of cables per the plans and specifications. This item shall also include furnishing and installing conduits and all incidentals for providing positive drainage of the system. Verification of existing ducts is incidental to the pay items provided in this specification.
EQUIPMENT AND MATERIALS
110-2.1 General.
a. All equipment and materials covered by referenced specifications shall be subject to acceptance through manufacturer’s certification of compliance with the applicable specification when requested by the Resident Project Representative (RPR).
b. Manufacturer’s certifications shall not relieve the Contractor of the responsibility to provide materials per these specifications and acceptable to the RPR. Materials supplied and/or installed that do not comply with these specifications shall be removed, when directed by the RPR and replaced with materials, that comply with these specifications, at the Contractor’s cost. c. All materials and equipment used to construct this item shall be submitted to the RPR for approval prior to ordering the equipment. Submittals consisting of marked catalog sheets or shop drawings shall be provided in electronic format. Submittal data shall be presented in a clear, precise and thorough manner.
Original catalog sheets are preferred. Photocopies are acceptable provided they are as good a quality as the original. Clearly and boldly mark each copy to identify products or models applicable to this project.
Indicate all optional equipment and delete non-pertinent data. Submittals for components of electrical equipment and systems shall identify the equipment for which they apply on each submittal sheet.
Markings shall be made bold and clear with arrows or circles (highlighting is not acceptable). The Contractor is solely responsible for delays in project that accrue directly or indirectly from late submissions or resubmissions of submittals.
d. The data submitted shall be sufficient, in the opinion of the RPR, to determine compliance with the plans and specifications. The Contractor’s submittals shall be in PDF format. The RPR reserves the right to reject any and all equipment, materials or procedures that do not meet the system design and the standards and codes specified in this document.
e. All equipment and materials furnished and installed under this section shall be guaranteed against defects in materials and workmanship for a period of at least 12 months from final acceptance by the Owner. The defective materials and/or equipment shall be repaired or replaced, at the Owner’s discretion, with no additional cost to the Owner.
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Item L-110 Airport Underground Electrical Duct Banks and Conduits 523 110-2.2 Steel conduit. Rigid galvanized steel (RGS) conduit and fittings shall be hot dipped galvanized inside and out and conform to the requirements of Underwriters Laboratories Standards 6, 514B, and 1242. All RGS conduits or RGS elbows installed below grade, in concrete, permanently wet locations or other similar environments shall be painted with a 10-mil thick coat of asphaltum sealer or shall have a factory-bonded polyvinyl chloride (PVC) cover. Any exposed galvanizing or steel shall be coated with 10 mils of asphaltum sealer. When using PVC coated RGS conduit, care shall be exercised not to damage the factory PVC coating. Damaged PVC coating shall be repaired per the manufacturer's written instructions. In lieu of PVC coated RGS, corrosion wrap tape shall be permitted to be used where RGS is in contact with direct earth.”
110-2.3 Plastic conduit. Plastic conduit and fittings-shall conform to the following requirements:
· UL 514B covers W-C-1094-Conduit fittings all types, classes 1 thru 3 and 6 thru 10.
· UL 514C covers W-C-1094- all types, Class 5 junction box and cover in plastic (PVC). · UL 651 covers W-C-1094-Rigid PVC Conduit, types I and II, Class 4. · UL 651A covers W-C-1094-Rigid PVC Conduit and high-density polyethylene (HDPE) Conduit type III and Class 4.
Underwriters Laboratories Standards UL-651 and Article 352 of the current National Electrical Code shall be one of the following, as shown on the plans:
a. Type I–Schedule 40 and Schedule 80 PVC suitable for underground use either direct-buried or encased in concrete.
b. Type II–Schedule 40 PVC suitable for either above ground or underground use. c. Type III – Schedule 80 PVC suitable for either above ground or underground use either direct- buried or encased in concrete.
d. Type III –HDPE pipe, minimum standard dimensional ratio (SDR) 11, suitable for placement with directional boring under pavement.
The type of solvent cement shall be as recommended by the conduit/fitting manufacturer. 110-2.4 Split conduit. Split conduit shall be pre-manufactured for the intended purpose and shall be made of steel or plastic.
110-2.5 Conduit spacers. Conduit spacers shall be prefabricated interlocking units manufactured for the intended purpose. They shall be of double wall construction made of high grade, high density polyethylene complete with interlocking cap and base pads. They shall be designed to accept No. 4 reinforcing bars installed vertically.
110-2.6 Concrete. Concrete shall be proportioned, placed, and cured per Item P-610, Concrete for Miscellaneous Structures.
110-2.7 Precast concrete structures. Precast concrete structures shall be furnished by a plant meeting National Precast Concrete Association Plant Certification Program or another RPR approved third party certification program. Precast concrete structures shall conform to ASTM C478. 110-2.8 Flowable backfill. Flowable material used to back fill conduit and duct bank trenches shall conform to the requirements of Item P-153, Controlled Low Strength Material. 110-2.9 Detectable warning tape. Plastic, detectable, American Public Works Association (APWA) red (electrical power lines, cables, conduit and lighting cable), orange (telephone/fiber optic cabling) with continuous legend magnetic tape shall be polyethylene film with a metallized foil core and shall be 3-6 inches wide. Detectable tape is incidental to the respective bid item. Detectable tape for power ducts and A.10.e
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Item L-110 Airport Underground Electrical Duct Banks and Conduits 524 conduit shall be inscribed with “ELECTRICAL LINE BELOW” or similar verbiage. Detectable tape for communication ducts or conduit shall be inscribed with “COMMUNICATION LINE BELOW” or similar verbiage.
CONSTRUCTION METHODS
110-3.1 General. The Contractor shall install underground duct banks and conduits at the approximate locations indicated on the plans. The RPR shall indicate specific locations as the work progresses, if required to differ from the plans. Duct banks and conduits shall be of the size, material, and type indicated on the plans or specifications. Where no size is indicated on the plans or in the specifications, conduits shall be not less than 2 inches inside diameter or comply with the National Electrical Code based on cable to be installed, whichever is larger. All duct bank and conduit lines shall be laid so as to grade toward access points and duct or conduit ends for drainage. Unless shown otherwise on the plans, grades shall be at least 3 inches per 100 feet. On runs where it is not practicable to maintain the grade all one way, the duct bank and conduit lines shall be graded from the center in both directions toward access points or conduit ends, with a drain into the storm drainage system. Pockets or traps where moisture may accumulate shall be avoided. Under pavement, the top of the duct bank shall not be less than 18 inches below the subgrade; in other locations, the top of the duct bank or underground conduit shall not be less than 18 inches below finished grade.
The Contractor shall mandrel each individual conduit whether the conduit is direct-buried or part of a duct bank. An iron-shod mandrel, not more than 1/4 inch smaller than the bore of the conduit shall be pulled or pushed through each conduit. The mandrel shall have a leather or rubber gasket slightly larger than the conduit hole.
The Contractor shall swab out all conduits/ducts and clean base can, manhole, pull boxes, etc., interiors IMMEDIATELY prior to pulling cable. Once cleaned and swabbed the light bases, manholes, pull boxes, etc., and all accessible points of entry to the duct/conduit system shall be kept closed except when installing cables. Cleaning of ducts, base cans, manholes, etc., is incidental to the pay item of the item being cleaned. All raceway systems left open, after initial cleaning, for any reason shall be recleaned at the Contractor’s expense. All accessible points shall be kept closed when not installing cable. The Contractor shall verify existing ducts proposed for use in this project as clear and open. The Contractor shall notify the RPR of any blockage in the existing ducts.
For pulling the permanent wiring, each individual conduit, whether the conduit is direct-buried or part of a duct bank, shall be provided with a 200-pound (90 kg) test polypropylene pull rope. The ends shall be secured and sufficient length shall be left in access points to prevent it from slipping back into the conduit. Where spare conduits are installed, as indicated on the plans, the open ends shall be plugged with removable tapered plugs, designed for this purpose.
All conduits shall be securely fastened in place during construction and shall be plugged to prevent contaminants from entering the conduits. Any conduit section having a defective joint shall not be installed. Ducts shall be supported and spaced apart using approved spacers at intervals not to exceed 5 feet (1.5 m).
Unless otherwise shown on the plans, concrete encased duct banks shall be used when crossing under pavements expected to carry aircraft loads, such as runways, taxiways, taxilanes, ramps and aprons. When under paved shoulders and other paved areas, conduit and duct banks shall be encased using flowable fill for protection.
All conduits within concrete encasement of the duct banks shall terminate with female ends for ease in current and future use. Install factory plugs in all unused ends. Do not cover the ends or plugs with concrete.
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Item L-110 Airport Underground Electrical Duct Banks and Conduits 525 Where turf is well established and the sod can be removed, it shall be carefully stripped and properly stored.
Trenches for conduits and duct banks may be excavated manually or with mechanical trenching equipment unless in pavement, in which case they shall be excavated with mechanical trenching equipment. Walls of trenches shall be essentially vertical so that a minimum of shoulder surface is disturbed. Blades of graders shall not be used to excavate the trench.
When rock is encountered, the rock shall be removed to a depth of at least 3 inches (75 mm) below the required conduit or duct bank depth and it shall be replaced with bedding material of earth or sand containing no mineral aggregate particles that would be retained on a 1/4-inch (6.3 mm) sieve. Flowable backfill may alternatively be used . The Contractor shall ascertain the type of soil or rock to be excavated before bidding. All such rock removal shall be performed and paid for under Item P-152.
Underground electrical warning (Caution) tape shall be installed in the trench above all underground duct banks and conduits in unpaved areas. Contractor shall submit a sample of the proposed warning tape for approval by the RPR. If not shown on the plans, the warning tape shall be located 6 inches above the duct/conduit or the counterpoise wire if present.
Joints in plastic conduit shall be prepared per the manufacturer’s recommendations for the particular type of conduit. Plastic conduit shall be prepared by application of a plastic cleaner and brushing a plastic solvent on the outside of the conduit ends and on the inside of the couplings. The conduit fitting shall then be slipped together with a quick one-quarter turn twist to set the joint tightly. Where more than one conduit is placed in a single trench, or in duct banks, joints in the conduit shall be staggered a minimum of 2 feet (60 cm).
Changes in direction of runs exceeding 10 degrees, either vertical or horizontal, shall be accomplished using manufactured sweep bends.
Whether or not specifically indicated on the drawings, where the soil encountered at established duct bank grade is an unsuitable material, as determined by the RPR, the unsuitable material shall be removed per Item P-152 and replaced with suitable material. Additional duct bank supports shall be installed, as approved by the RPR.
All excavation shall be unclassified and shall be considered incidental to Item L-110. Dewatering necessary for duct installation, and erosion per federal, state, and local requirements is incidental to Item L-110.
Unless otherwise specified, excavated materials that are deemed by the RPR to be unsuitable for use in backfill or embankments shall be removed and disposed of offsite.
Any excess excavation shall be filled with suitable material approved by the RPR and compacted per Item P-152.
It is the Contractor’s responsibility to locate existing utilities within the work area prior to excavation.
Where existing active cables) cross proposed installations, the Contractor shall ensure that these cables are adequately protected. Where crossings are unavoidable, no splices will be allowed in the existing cables, except as specified on the plans. Installation of new cable where such crossings must occur shall proceed as follows:
a. Existing cables shall be located manually. Unearthed cables shall be inspected to assure absolutely no damage has occurred
b. Trenching, etc., in cable areas shall then proceed with approval of the RPR, with care taken to minimize possible damage or disruption of existing cable, including careful backfilling in area of cable.
In the event that any previously identified cable is damaged during the course of construction, the Contractor shall be responsible for the complete repair.
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Item L-110 Airport Underground Electrical Duct Banks and Conduits 526 110-3.2 Duct banks. Unless otherwise shown in the plans, duct banks shall be installed so that the top of the concrete envelope is not less than 18 inches (0.5 m) below the bottom of the base or stabilized base course layers where installed under runways, taxiways, aprons, or other paved areas, and not less than 18 inches (0.5 m) below finished grade where installed in unpaved areas.
Unless otherwise shown on the plans, duct banks under paved areas shall extend at least 3 feet (1 m) beyond the edges of the pavement or 3 feet (1 m) beyond any under drains that may be installed alongside the paved area. Trenches for duct banks shall be opened the complete length before concrete is placed so that if any obstructions are encountered, provisions can be made to avoid them. Unless otherwise shown on the plans, all duct banks shall be placed on a layer of concrete not less than 3 inches (75 mm) thick prior to its initial set. The Contractor shall space the conduits not less than 3 inches (75 mm) apart (measured from outside wall to outside wall). All such multiple conduits shall be placed using conduit spacers applicable to the type of conduit. As the conduit laying progresses, concrete shall be placed around and on top of the conduits not less than 3 inches (75 mm) thick unless otherwise shown on the plans. All conduits shall terminate with female ends for ease of access in current and future use. Install factory plugs in all unused ends. Do not cover the ends or plugs with concrete.
Conduits forming the duct bank shall be installed using conduit spacers. No. 4 reinforcing bars shall be driven vertically into the soil a minimum of 6 inches (150 mm) to anchor the assembly into the earth prior to placing the concrete encasement. For this purpose, the spacers shall be fastened down with locking collars attached to the vertical bars. Spacers shall be installed at 5-foot (1.5-m) intervals. Spacers shall be in the proper sizes and configurations to fit the conduits. Locking collars and spacers shall be submitted to the RPR for review prior to use.
When specified, the Contractor shall reinforce the bottom side and top of encasements with steel reinforcing mesh or fabric or other approved metal reinforcement. When directed, the Contractor shall supply additional supports where the ground is soft and boggy, where ducts cross under roadways, or where shown on the plans. Under such conditions, the complete duct structure shall be supported on reinforced concrete footings, piers, or piles located at approximately 5-foot (1.5-m) intervals.
All pavement surfaces that are to have ducts installed therein shall be neatly saw cut to form a vertical face. All excavation shall be included in the contract unit price for the duct.
Install a plastic, detectable, color as noted, 3 to 6 inches (75 to 150 mm) wide tape, 8 inches (200 mm) minimum below grade above all underground conduit or duct lines not installed under pavement. Utilize the 3-inch (75-mm) wide tape only for single conduit runs. Utilize the 6-inch (150-mm) wide tape for multiple conduits and duct banks. For duct banks equal to or greater than 24 inches (600 mm) in width, utilize more than one tape for sufficient coverage and identification of the duct bank as required.
When existing cables are to be placed in split duct, encased in concrete, the cable shall be carefully located and exposed by hand tools. Prior to being placed in duct, the RPR shall be notified so that he may inspect the cable and determine that it is in good condition. Where required, split duct shall be installed as shown on the drawings or as required by the RPR.
110-3.3 Conduits without concrete encasement. Trenches for single-conduit lines shall be not less than 6 inches (150 mm) nor more than 12 inches (300 mm) wide. The trench for 2 or more conduits installed at the same level shall be proportionately wider. Trench bottoms for conduits without concrete encasement shall be made to conform accurately to grade so as to provide uniform support for the conduit along its entire length.
Unless otherwise shown on the plans, a layer of fine earth material, at least 4 inches (100 mm) thick (loose measurement) shall be placed in the bottom of the trench as bedding for the conduit. The bedding material shall consist of soft dirt, sand or other fine fill, and it shall contain no particles that would be retained on a 1/4-inch (6.3 mm) sieve. The bedding material shall be tamped until firm. Flowable backfill may alternatively be used.
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Item L-110 Airport Underground Electrical Duct Banks and Conduits 527 Unless otherwise shown on plans, conduits shall be installed so that the tops of all conduits within the Airport’s secured area where trespassing is prohibited are at least 18 inches (0.5 m) below the finished grade. Conduits outside the Airport’s secured area shall be installed so that the tops of the conduits are at least 24 inches (60 cm) below the finished grade per National Electric Code (NEC), Table 300.5.
When two or more individual conduits intended to carry conductors of equivalent voltage insulation rating are installed in the same trench without concrete encasement, they shall be spaced not less than 3 inches (75 mm) apart (measured from outside wall to outside wall) in a horizontal direction and not less than 3 inches (75 mm) apart in a vertical direction. Where two or more individual conduits intended to carry conductors of differing voltage insulation rating are installed in the same trench without concrete encasement, they shall be placed not less than 3 inches (75 mm) apart (measured from outside wall to outside wall) in a horizontal direction and lot less than 6 inches (150 mm) apart in a vertical direction.
Trenches shall be opened the complete length between normal termination points before conduit is installed so that if any unforeseen obstructions are encountered, proper provisions can be made to avoid them.
Conduits shall be installed using conduit spacers. No. 4 reinforcing bars shall be driven vertically into the soil a minimum of 6 inches (150 mm) to anchor the assembly into the earth while backfilling. For this purpose, the spacers shall be fastened down with locking collars attached to the vertical bars. Spacers shall be installed at 5-foot (1.5-m) intervals. Spacers shall be in the proper sizes and configurations to fit the conduits. Locking collars and spacers shall be submitted to the RPR for review prior to use. 110-3.4 Markers. The location of each end and of each change of direction of conduits and duct banks shall be marked by a concrete slab marker 2 feet (60 cm) square and 4 - 6 inches (100 - 150 mm) thick extending approximately one inch (25 mm) above the surface. The markers shall also be located directly above the ends of all conduits or duct banks, except where they terminate in a junction/access structure or building. Each cable or duct run from a line of lights and signs to the equipment vault must be marked at approximately every 200 feet (61 m) along the cable or duct run, with an additional marker at each change of direction of cable or duct run.
The Contractor shall impress the word “DUCT” or “CONDUIT” on each marker slab. Impression of letters shall be done in a manner, approved by the RPR, for a neat, professional appearance. All letters and words must be neatly stenciled. After placement, all markers shall be given one coat of high-visibility orange paint, as approved by the RPR. The Contractor shall also impress on the slab the number and size of conduits beneath the marker along with all other necessary information as determined by the RPR. The letters shall be 4 inches (100 mm) high and 3 inches (75 mm) wide with width of stroke 1/2 inch (12 mm) and 1/4 inch (6 mm) deep or as large as the available space permits. Furnishing and installation of duct markers is incidental to the respective duct pay item.
110-3.5 Backfilling for conduits. For conduits, 8 inches (200 mm) of sand, soft earth, or other fine fill (loose measurement) shall be placed around the conduits ducts and carefully tamped around and over them with hand tampers. The remaining trench shall then be backfilled and compacted per Item P-152 except that material used for back fill shall be select material not larger than 4 inches (100 mm) in diameter.
Flowable backfill may alternatively be used.
Trenches shall not contain pools of water during back filling operations.
The trench shall be completely backfilled and tamped level with the adjacent surface; except that, where sod is to be placed over the trench, the backfilling shall be stopped at a depth equal to the thickness of the sod to be used, with proper allowance for settlement.
Any excess excavated material shall be removed and disposed of per instructions issued by the RPR.
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Item L-110 Airport Underground Electrical Duct Banks and Conduits 528 110-3.6 Backfilling for duct banks. After the concrete has cured, the remaining trench shall be backfilled and compacted per Item P-152 “Excavation and Embankment” except that the material used for backfill shall be select material not larger than 4 inches (100 mm) in diameter. In addition to the requirements of Item P-152, where duct banks are installed under pavement, one moisture/density test per lift shall be made for each 250 linear feet (76 m) of duct bank or one work period’s construction, whichever is less.
Flowable backfill may alternatively be used.
Trenches shall not contain pools of water during backfilling operations.
The trench shall be completely backfilled and tamped level with the adjacent surface; except that, where sod is to be placed over the trench, the backfilling shall be stopped at a depth equal to the thickness of the sod to be used, with proper allowance for settlement.
Any excess excavated material shall be removed and disposed of per instructions issued by the RPR. 110-3.7 Restoration. Where sod has been removed, it shall be replaced as soon as possible after the backfilling is completed. All areas disturbed by the work shall be restored to its original condition. The restoration shall include mulching shown on the plans. The Contractor shall be held responsible for maintaining all disturbed surfaces and replacements until final acceptance. All restoration shall be considered incidental to the respective L-110 pay item. Following restoration of all trenching near airport movement surfaces, the Contractor shall thoroughly visually inspect the area for foreign object debris (FOD), and remove any such FOD that is found. This FOD inspection and removal shall be considered incidental to the pay item of which it is a component part.
METHOD OF MEASUREMENT
110-4.1 Underground conduits and duct banks shall be measured by the linear feet of conduits and duct banks installed, including encasement, locator tape, trenching and backfill with designated material, and restoration, all measured in place, completed, and accepted. Separate measurement shall be made for the various types and sizes.
BASIS OF PAYMENT
110-5.1 Payment will be made at the contract unit price per linear foot for each type and size of conduit and duct bank completed and accepted, including trench and backfill with the designated material, and, for drain lines, the termination at the drainage structure. This price shall be full compensation for furnishing all materials and for all preparation, assembly, and installation of these materials, and for all labor, equipment, tools, and incidentals necessary to complete this item per the provisions and intent of the plans and specifications.
Payment will be made under:
Item L-110-5.1 Non-Encased Schedule 40 PVC Conduit, 1-Way 2” - per linear foot Item L-110-5.2 Concrete Encased Conduit, 1-Way 2” - per linear foot Item L-110-5.3 Directional Bore Schedule 80 HDPE Conduit, 1-Way 2” – per linear foot
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Item L-110 Airport Underground Electrical Duct Banks and Conduits 529
REFERENCES
The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.
Advisory Circular (AC)
AC 150/5340-30 Design and Installation Details for Airport Visual Aids AC 150/5345-53 Airport Lighting Equipment Certification Program ASTM International (ASTM)
ASTM A615 Standard Specification for Deformed and Plain Carbon-Steel Bars for Concrete Reinforcement
National Fire Protection Association (NFPA)
NFPA-70 National Electrical Code (NEC)
Underwriters Laboratories (UL)
UL Standard 6 Electrical Rigid Metal Conduit - Steel
UL Standard 514B Conduit, Tubing, and Cable Fittings
UL Standard 514C Nonmetallic Outlet Boxes, Flush-Device Boxes, and Covers UL Standard 1242 Electrical Intermediate Metal Conduit Steel UL Standard 651 Schedule 40, 80, Type EB and A Rigid PVC Conduit and Fittings UL Standard 651A Type EB and A Rigid PVC Conduit and HDPE Conduit END OF ITEM L-110
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Item L-110 Airport Underground Electrical Duct Banks and Conduits 530 Page Intentionally Blank
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Item L-115 Electrical Manholes and Junction Structures 531 Item L-115 Electrical Manholes and Junction Structures
DESCRIPTION
115-1.1 This item shall consist of electrical manholes and junction structures (hand holes, pull boxes, junction cans, etc.) installed per this specification, at the indicated locations and conforming to the lines, grades and dimensions shown on the plans or as required by the Resident Project Representative (RPR).
This item shall include the installation of each electrical manhole and/or junction structures with all associated excavation, backfilling, sheeting and bracing, concrete, reinforcing steel, ladders, appurtenances, testing, dewatering and restoration of surfaces to the satisfaction of the RPR.
EQUIPMENT AND MATERIALS
115-2.1 General.
a. All equipment and materials covered by referenced specifications shall be subject to acceptance through manufacturer’s certification of compliance with the applicable specification when so requested by the RPR.
b. Manufacturer’s certifications shall not relieve the Contractor of the responsibility to provide materials per these specifications. Materials supplied and/or installed that do not comply with these specifications shall be removed (when directed by the RPR) and replaced with materials that comply with these specifications at the Contractor’s cost.
c. All materials and equipment used to construct this item shall be submitted to the RPR for approval prior to ordering the equipment. Submittals consisting of marked catalog sheets or shop drawings shall be provided. Submittal data shall be presented in a clear, precise and thorough manner. Original catalog sheets are preferred. Photocopies are acceptable provided they are as good a quality as the original.
Clearly and boldly mark each copy to identify products or models applicable to this project. Indicate all optional equipment and delete any non-pertinent data. Submittals for components of electrical equipment and systems shall identify the equipment to which they apply on each submittal sheet. Markings shall be made bold and clear with arrows or circles (highlighting is not acceptable). The Contractor is solely responsible for delays in the project that may accrue directly or indirectly from late submissions or resubmissions of submittals.
d. The data submitted shall be sufficient, in the opinion of the RPR, to determine compliance with the plans and specifications. The Contractor’s submittals shall be neatly bound in a properly sized 3-ring binder, tabbed by specification section. The RPR reserves the right to reject any and all equipment, materials or procedures that do not meet the system design and the standards and codes, specified in this document.
e. All equipment and materials furnished and installed under this section shall be guaranteed against defects in materials and workmanship for a period of at least twelve (12) months from the date of final acceptance by the Owner. The defective materials and/or equipment shall be repaired or replaced, at the Owner’s discretion, with no additional cost to the Owner. 115-2.2 Concrete structures. Concrete shall be proportioned, placed, and cured per Item P-610, Concrete for Miscellaneous Structures. Cast-in-place concrete structures shall be as shown on the plans.
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Item L-115 Electrical Manholes and Junction Structures 532 115-2.3 Precast concrete structures. Precast concrete structures shall be furnished by a plant meeting National Precast Concrete Association Plant Certification Program or another engineer approved third party certification program. Provide precast concrete structures where shown on the plans.
Precast concrete structures shall be an approved standard design of the manufacturer. Precast units shall have mortar or bitumastic sealer placed between all joints to make them watertight. The structure shall be designed to withstand 80,000 lb aircraft loads, unless otherwise shown on the plans. Openings or knockouts shall be provided in the structure as detailed on the plans.
Threaded inserts and pulling eyes shall be cast in as shown on the plans.
If the Contractor chooses to propose a different structural design, signed and sealed shop drawings, design calculations, and other information requested by the RPR shall be submitted by the Contractor to allow for a full evaluation by the RPR. The RPR shall review per the process defined in the General Provisions. 115-2.4 Junction cans. Junction cans shall be L-867 Size D Class 1 (non-load bearing) or L-868 Size C Class 1 (load bearing) airport light bases that are encased in concrete. The light bases shall have a L-894 blank cover, gasket, and stainless steel hardware. All bolts, studs, nuts, lock washers, and other similar fasteners used for the light fixture assemblies must be fabricated from 316L (equivalent to EN 1.4404), 18-8, 410, or 416 stainless steel. If 18-8, 410, or 416 stainless steel is utilized it shall be passivated and be free from any discoloration. Covers shall be 3/8-inch (9-mm) thickness for L-867 and 3/4-inch (19-mm) thickness for L-868. All junction boxes shall be provided with both internal and external ground lugs. 115-2.5 Mortar. The mortar shall be composed of one part of cement and two parts of mortar sand, by volume. The cement shall be per the requirements in ASTM C150, Type I. The sand shall be per the requirements in ASTM C144. Hydrated lime may be added to the mixture of sand and cement in an amount not to exceed 15% of the weight of cement used. The hydrated lime shall meet the requirements of ASTM C206. Water shall be potable, reasonably clean and free of oil, salt, acid, alkali, sugar, vegetable, or other substances injurious to the finished product. 115-2.6 Concrete. All concrete used in structures shall conform to the requirements of Item P-610, Concrete for Miscellaneous Structures.
115-2.7 Frames and covers. The frames shall conform to one of the following requirements:
a. ASTM A48 Gray iron castings
b. ASTM A47 Malleable iron castings
c. ASTM A27 Steel castings
d. ASTM A283, Grade D Structural steel for grates and frames e. ASTM A536 Ductile iron castings
f. ASTM A897 Austempered ductile iron castings
All castings specified shall withstand a maximum tire pressure of 250 psi and maximum load of 80,000 lbs.
All castings or structural steel units shall conform to the dimensions shown on the plans and shall be designed to support the loadings specified.
Each frame and cover unit shall be provided with fastening members to prevent it from being dislodged by traffic, but which will allow easy removal for access to the structure.
All castings shall be thoroughly cleaned. After fabrication, structural steel units shall be galvanized to meet the requirements of ASTM A123.
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Item L-115 Electrical Manholes and Junction Structures 533 Each cover shall have the word “ELECTRIC” or other approved designation cast on it. FAA covers shall have the word “FAA” or other approved FAA designation cast on it. Each frame and cover shall be as shown on the plans or approved equivalent. No cable notches are required. 115-2.8 Ladders. LNot required.
115-2.9 Reinforcing steel. All reinforcing steel shall be deformed bars of new billet steel meeting the requirements of ASTM A615, Grade 60.
115-2.10 Bedding/special backfill. Bedding or special backfill shall be as shown on the plans. 115-2.11 Flowable backfill. Flowable material used to backfill shall conform to the requirements of Item P-153, Controlled Low Strength Material.
115-2.12 Cable trays. Cable trays shall be of galvanized steel with non-metallic insulators. Cable trays shall be located as shown on the plans. 115-2.13 Plastic conduit. Plastic conduit shall comply with Item L-110, Airport Underground Electrical Duct Banks and Conduits.
115-2.14 Conduit terminators. Conduit terminators shall be pre-manufactured for the specific purpose and sized as required or as shown on the plans.
115-2.15 Pulling-in irons. Pulling-in irons shall be manufactured with 7/8-inch (22 mm) diameter hot- dipped galvanized steel or stress-relieved carbon steel roping designed for concrete applications (7 strand, 1/2-inch (12 mm) diameter with an ultimate strength of 270,000 psi (1862 MPa)). Where stress-relieved carbon steel roping is used, a rustproof sleeve shall be installed at the hooking point and all exposed surfaces shall be encapsulated with a polyester coating to prevent corrosion. 115-2.16 Ground rods. Ground rods shall be one piece, copper clad steel. The ground rods shall be of the length and diameter specified on the plans, but in no case shall they be less than 10 feet long nor less than 3/4 inch in diameter.
CONSTRUCTION METHODS
115-3.1 Unclassified excavation. It is the Contractor’s responsibility to locate existing utilities within the work area prior to excavation. Damage to utility lines, through lack of care in excavating, shall be repaired or replaced to the satisfaction of the RPR without additional expense to the Owner.
The Contractor shall perform excavation for structures and structure footings to the lines and grades or elevations shown on the plans or as staked by the RPR. The excavation shall be of sufficient size to permit the placing of the full width and length of the structure or structure footings shown.
All excavation shall be unclassified and shall be considered incidental to Item L-115. Dewatering necessary for structure installation and erosion per federal, state, and local requirements is incidental to Item L-115.
Boulders, logs and all other objectionable material encountered in excavation shall be removed. All rock and other hard foundation material shall be cleaned of all loose material and cut to a firm surface either level, stepped or serrated, as directed by the RPR. All seams, crevices, disintegrated rock and thin strata shall be removed. When concrete is to rest on a surface other than rock, special care shall be taken not to disturb the bottom of the excavation. Excavation to final grade shall not be made until just before the concrete or reinforcing is to be placed.
The Contractor shall provide all bracing, sheeting and shoring necessary to implement and protect the excavation and the structure as required for safety or conformance to governing laws. The cost of bracing, sheeting and shoring shall be included in the unit price bid for the structure.
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Item L-115 Electrical Manholes and Junction Structures 534 Unless otherwise provided, bracing, sheeting and shoring involved in the construction of this item shall be removed by the Contractor after the completion of the structure. Removal shall be effected in a manner that will not disturb or mar finished masonry. The cost of removal shall be included in the unit price bid for the structure.
After each excavation is completed, the Contractor shall notify the RPR. Structures shall be placed after the RPR has approved the depth of the excavation and the suitability of the foundation material.
Prior to installation the Contractor shall provide a minimum of 6 inches (150 mm) of sand or a material approved by the RPR as a suitable base to receive the structure. The base material shall be compacted and graded level and at proper elevation to receive the structure in proper relation to the conduit grade or ground cover requirements, as indicated on the plans.
115-3.2 Concrete structures. Concrete structures shall be built on prepared foundations conforming to the dimensions and form indicated on the plans. The concrete and construction methods shall conform to the requirements specified in Item P-610. Any reinforcement required shall be placed as indicated on the plans and shall be approved by the RPR before the concrete is placed. 115-3.3 Precast unit installations. Precast units shall be installed plumb and true. Joints shall be made watertight by use of sealant at each tongue-and-groove joint and at roof of manhole. Excess sealant shall be removed and severe surface projections on exterior of neck shall be removed. 115-3.4 Placement and treatment of castings, frames and fittings. All castings, frames and fittings shall be placed in the positions indicated on the Plans or as directed by the RPR and shall be set true to line and to correct elevation. If frames or fittings are to be set in concrete or cement mortar, all anchors or bolts shall be in place and position before the concrete or mortar is placed. The unit shall not be disturbed until the mortar or concrete has set.
Field connections shall be made with bolts, unless indicated otherwise. Welding will not be permitted unless shown otherwise on the approved shop drawings and written approval is granted by the casting manufacturer. Erection equipment shall be suitable and safe for the workman. Errors in shop fabrication or deformation resulting from handling and transportation that prevent the proper assembly and fitting of parts shall be reported immediately to the RPR and approval of the method of correction shall be obtained. Approved corrections shall be made at Contractor’s expense.
Anchor bolts and anchors shall be properly located and built into connection work. Bolts and anchors shall be preset by the use of templates or such other methods as may be required to locate the anchors and anchor bolts accurately.
Pulling-in irons shall be located opposite all conduit entrances into structures to provide a strong, convenient attachment for pulling-in blocks when installing cables. Pulling-in irons shall be set directly into the concrete walls of the structure.
115-3.5 Installation of ladders. Ladders shall be installed such that they may be removed if necessary.
Mounting brackets shall be supplied top and bottom and shall be cast in place during fabrication of the structure or drilled and grouted in place after erection of the structure. 115-3.6 Removal of sheeting and bracing. In general, all sheeting and bracing used to support the sides of trenches or other open excavations shall be withdrawn as the trenches or other open excavations are being refilled. That portion of the sheeting extending below the top of a structure shall be withdrawn, unless otherwise directed, before more than 6 inches (150 mm) of material is placed above the top of the structure and before any bracing is removed. Voids left by the sheeting shall be carefully refilled with selected material and rammed tight with tools especially adapted for the purpose or otherwise as may be approved.
The RPR may direct the Contractor to delay the removal of sheeting and bracing if, in his judgment, the installed work has not attained the necessary strength to permit placing of backfill.
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Item L-115 Electrical Manholes and Junction Structures 535 115-3.7 Backfilling. After a structure has been completed, the area around it shall be backfilled in horizontal layers not to exceed 6 inches (150 mm) in thickness measured after compaction to the density requirements in Item P-152. Each layer shall be deposited all around the structure to approximately the same elevation. The top of the fill shall meet the elevation shown on the plans or as directed by the RPR.
Backfill shall not be placed against any structure until approval is given by the RPR. In the case of concrete, such approval shall not be given until tests made by the laboratory under supervision of the RPR establish that the concrete has attained sufficient strength to provide a factor of safety against damage or strain in withstanding any pressure created by the backfill or the methods used in placing it.
Where required, the RPR may direct the Contractor to add, at his own expense, sufficient water during compaction to assure a complete consolidation of the backfill. The Contractor shall be responsible for all damage or injury done to conduits, duct banks, structures, property or persons due to improper placing or compacting of backfill.
115-3.8 Connection of duct banks. To relieve stress of joint between concrete-encased duct banks and structure walls, reinforcement rods shall be placed in the structure wall and shall be formed and tied into duct bank reinforcement at the time the duct bank is installed. 115-3.9 Grounding. A ground rod shall be installed in the floor of all concrete structures so that the top of rod extends 6 inches (150 mm) above the floor. The ground rod shall be installed within one foot (30 cm) of a corner of the concrete structure. Ground rods shall be installed prior to casting the bottom slab.
Where the soil condition does not permit driving the ground rod into the earth without damage to the ground rod, the Contractor shall drill a 4-inch (100 mm) diameter hole into the earth to receive the ground rod. The hole around the ground rod shall be filled throughout its length, below slab, with Portland cement grout. Ground rods shall be installed in precast bottom slab of structures by drilling a hole through bottom slab and installing the ground rod. Bottom slab penetration shall be sealed watertight with Portland cement grout around the ground rod.
Ground rods for FAA facilities shall be installed outside of the concrete structure with a #4/0 bare copper wire whip exothermically bonded to the internal ground bus and ground rod.
A grounding bus of 4/0 bare stranded copper shall be exothermically bonded to the ground rod and loop the concrete structure walls. The ground bus shall be a minimum of one foot (30 cm) above the floor of the structure and separate from other cables. No. 2 American wire gauge (AWG) bare copper pigtails shall bond the grounding bus to all cable trays and other metal hardware within the concrete structure.
Connections to the grounding bus shall be exothermic. If an exothermic weld is not possible, connections to the grounding bus shall be made by using connectors approved for direct burial in soil or concrete per UL 467. Hardware connections may be mechanical, using a lug designed for that purpose. 115-3.10 Cleanup and repair. After erection of all galvanized items, damaged areas shall be repaired by applying a liquid cold-galvanizing compound per MIL-P-21035. Surfaces shall be prepared and compound applied per the manufacturer’s recommendations.
Prior to acceptance, the entire structure shall be cleaned of all dirt and debris. 115-3.11 Restoration. After the backfill is completed, the Contractor shall dispose of all surplus material, dirt and rubbish from the site. The Contractor shall restore all disturbed areas equivalent to or better than their original condition. All sodding, grading and restoration shall be considered incidental to the respective Item L-115 pay item.
The Contractor shall grade around structures as required to provide positive drainage away from the structure.
Areas with special surface treatment, such as roads, sidewalks, or other paved areas shall have backfill compacted to match surrounding areas, and surfaces shall be repaired using materials comparable to original materials.
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Item L-115 Electrical Manholes and Junction Structures 536 Following restoration of all trenching near airport movement surfaces, the Contractor shall thoroughly visually inspect the area for foreign object debris (FOD), and remove any such FOD that is found. This FOD inspection and removal shall be considered incidental to the pay item of which it is a component part.
After all work is completed, the Contractor shall remove all tools and other equipment, leaving the entire site free, clear and in good condition.
115-3.12 Inspection. Prior to final approval, the electrical structures shall be thoroughly inspected for conformance with the plans and this specification. Any indication of defects in materials or workmanship shall be further investigated and corrected. The earth resistance to ground of each ground rod shall not exceed 25 ohms. Each ground rod shall be tested using the fall-of-potential ground impedance test per American National Standards Institute / Institute of Electrical and Electronic Engineers (ANSI/IEEE) Standard 81. This test shall be performed prior to establishing connections to other ground electrodes. 115-3.13 Manhole elevation adjustments. The Contractor shall adjust the tops of existing manholes in areas designated in the Contract Documents to the new elevations shown. The Contractor shall be responsible for determining the exact height adjustment required to raise or lower the top of each manhole to the new elevations. The existing top elevation of each manhole to be adjusted shall be determined in the field and subtracted/added from the proposed top elevation.
The Contractor shall remove/extend the existing top section or ring and cover on the manhole structure or manhole access. The Contractor shall install precast concrete sections or grade rings of the required dimensions to adjust the manhole top to the new proposed elevation or shall cut the existing manhole walls to shorten the existing structure, as required by final grades. The Contractor shall reinstall the manhole top section or ring and cover on top and check the new top elevation.
The Contractor shall construct a concrete slab around the top of adjusted structures located in graded areas that are not to be paved. The concrete slab shall conform to the dimensions shown on the plans. 115-3.14 Duct extension to existing ducts. Where existing concrete encased ducts are to be extended, the duct extension shall be concrete encased plastic conduit. The fittings to connect the ducts together shall be standard manufactured connectors designed and approved for the purpose. The duct extensions shall be installed according to the concrete encased duct detail and as shown on the plans.
METHOD OF MEASUREMENT
115-4.1 Electrical manholes and junction structures shall be measured by each unit completed in place and accepted. The following items shall be included in the price of each unit: All required excavation and dewatering:; sheeting and bracing; concrete, all required backfilling with on-site materials; restoration of all surfaces and finished grading and turfing; all required connections; temporary cables and connections; and ground rod testing
BASIS OF PAYMENT
115-5.1 The accepted quantity of electrical manholes and junction structures will be paid for at the Contract unit price per each, complete and in place. This price shall be full compensation for furnishing all materials and for all preparation, excavation, backfilling and placing of the materials, furnishing and installation of appurtenances and connections to duct banks and other structures as may be required to complete the item as shown on the plans and for all labor, equipment, tools and incidentals necessary to complete the structure.
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Item L-115 Electrical Manholes and Junction Structures 537 Payment will be made under:
Item L-115-5.1 H-20 Rated Concrete Handhole - Per Each
REFERENCES
The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.
American National Standards Institute / Insulated Cable Engineers Association (ANSI/ICEA) ANSI/IEEE STD 81 IEEE Guide for Measuring Earth Resistivity, Ground Impedance, and Earth Surface Potentials of a Ground System
Advisory Circular (AC)
AC 150/5345-7 Specification for L-824 Underground Electrical Cable for Airport Lighting Circuits
AC 150/5345-26 Specification for L-823 Plug and Receptacle, Cable Connectors AC 150/5345-42 Specification for Airport Light Bases, Transformer Housings, Junction Boxes, and Accessories
AC 150/5340-30 Design and Installation Details for Airport Visual Aids AC 150/5345-53 Airport Lighting Equipment Certification Program Commercial Item Description (CID)
A-A 59544 Cable and Wire, Electrical (Power, Fixed Installation) ASTM International (ASTM)
ASTM A27 Standard Specification for Steel Castings, Carbon, for General Application
ASTM A47 Standard Specification for Ferritic Malleable Iron Castings ASTM A48 Standard Specification for Gray Iron Castings
ASTM A123 Standard Specification for Zinc (Hot Dip Galvanized) Coatings on Iron and Steel Products
ASTM A283 Standard Specification for Low and Intermediate Tensile Strength Carbon Steel Plates
ASTM A536 Standard Specification for Ductile Iron Castings ASTM A615 Standard Specification for Deformed and Plain Carbon-Steel Bars for Concrete Reinforcement
ASTM A897 Standard Specification for Austempered Ductile Iron Castings ASTM C144 Standard Specification for Aggregate for Masonry Mortar ASTM C150 Standard Specification for Portland Cement
ASTM C206 Standard Specification for Finishing Hydrated Lime FAA Engineering Brief (EB)
EB #83 In Pavement Light Fixture Bolts
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Item L-115 Electrical Manholes and Junction Structures 538 Mil Spec
MIL-P-21035 Paint High Zinc Dust Content, Galvanizing Repair National Fire Protection Association (NFPA)
NFPA-70 National Electrical Code (NEC)
END OF ITEM L-115
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540
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Item L-125 Installation of Airport Lighting Systems 541 Item L-125 Installation of Airport Lighting Systems
DESCRIPTION
125-1.1 This item shall consist of airport lighting systems furnished and installed in accordance with this specification, the referenced specifications, and the applicable advisory circulars (ACs). The systems shall be installed at the locations and in accordance with the dimensions, design, and details shown in the plans.
This item shall include the furnishing of all equipment, materials, services, and incidentals necessary to place the systems in operation as completed units to the satisfaction of the RPR.
EQUIPMENT AND MATERIALS
125-2.1 General.
a. Airport lighting equipment and materials covered by Federal Aviation Administration (FAA) specifications shall be certified under the Airport Lighting Equipment Certification Program in accordance with AC 150/5345-53, current version. FAA certified airfield lighting shall be compatible with each other to perform in compliance with FAA criteria and the intended operation. If the Contractor provides equipment that does not performs as intended because of incompatibility with the system, the Contractor assumes all costs to correct the system for to operate properly. b. Manufacturer's certifications shall not relieve the Contractor of their responsibility to provide materials in accordance with these specifications and acceptable to the RPR. Materials supplied and/or installed that do not comply with these specifications shall be removed, when directed by the RPR and replaced with materials, which do comply with these specifications, at the sole cost of the Contractor. c. All materials and equipment used shall be submitted to the RPR for approval prior to ordering the equipment. Submittals consisting of marked catalog sheets or shop drawings shall be provided. Clearly mark each copy to identify pertinent products or models applicable to this project. Indicate all optional equipment and delete non-pertinent data. Submittals for components of electrical equipment and systems shall identify the equipment for which they apply on each submittal sheet. Markings shall be clearly made with arrows or circles (highlighting is not acceptable). The Contractor shall be responsible for delays in the project accruing directly or indirectly from late submissions or resubmissions of submittals. d. The data submitted shall be sufficient, in the opinion of the RPR, to determine compliance with the plans and specifications. The Contractor's submittals shall be submitted in electronic PDF format, tabbed by specification section. The RPR reserves the right to reject any or all equipment, materials or procedures, which, in the RPR’s opinion, does not meet the system design and the standards and codes, specified herein.
e. All equipment and materials furnished and installed under this section shall be guaranteed against defects in materials and workmanship for a period of at least twelve (12) months or 4 years (if LED) from final acceptance by the Owner. The defective materials and/or equipment shall be repaired or replaced, at the Owner's discretion, with no additional cost to the Owner.
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Item L-125 Installation of Airport Lighting Systems 542
EQUIPMENT AND MATERIALS
125-2.2 Conduit/Duct. Conduit shall conform to Specification Item L-110 Airport Underground Electrical Duct Banks and Conduits.
125-2.3 Cable and Counterpoise. Cable and Counterpoise shall conform to Item L-108 Underground Power Cable for Airports.
125-2.4 Tape. Rubber and plastic electrical tapes shall be Scotch Electrical Tape Numbers 23 and 88 respectively, as manufactured by 3M Company or an approved equal. 125-2.5 Cable Connections. Cable Connections shall conform to Item L-108 Installation of Underground Cable for Airports.
125-2.6 Retroreflective Markers. Retroreflective markers shall be type L-853 and shall conform to the requirements of AC 150/5345-39.
125-2.7 Runway and Taxiway Lights. Runway and taxiway lights shall conform to the requirements of AC 150/5345-46. Lamps shall be of size and type indicated, or as required by fixture manufacturer for each lighting fixture required under this contract. Filters shall be of colors conforming to the specification for the light concerned or to the standard referenced.
Lights
Type Class Mode Style Option Base Filter Transformer Notes L-
861E(L)
2 1
Baseplate with
Ground Lug
L-867 R/G 6.6 A/ 6.6 A LED
L-861T(L) 2 1 Baseplate with
Ground Lug
L-867 Blue 6.6 A/ 6.6 A LED
125-2.8 Runway and Taxiway Signs. Runway and Taxiway Guidance Signs should conform to the requirements of AC 150/5345-44.
Signs
Type Size Style Class Mode Notes
L-858L/Y 2 3 1 2 LED
L-858L/R 2 3 1 2 LED
125-2.9 Runway End Identifier Light (REIL). Install New Style E Current Powered LED REIL on new concrete foundations.
125-2.10 Precision Approach Path Indicator (PAPI). Not required. 125-2.12 Light Base and Transformer Housings. Light Base and Transformer Housings should conform to the requirements of AC 150/5345-42. Light bases shall be Type L-867, Class 1A, Size B, shall be provided as indicated or as required to accommodate the fixture or device installed thereon.
Base plates, cover plates, and adapter plates shall be provided to accommodate various sizes of fixtures.
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Item L-125 Installation of Airport Lighting Systems 543 125-2.13 Isolation Transformers. Isolation Transformers shall be Type L-830, size as required for each installation. Transformer shall conform to AC 150/5345-47.
INSTALLATION
125-3.1 Installation. The Contractor shall furnish, install, connect and test all equipment, accessories, conduit, cables, wires, buses, grounds and support items necessary to ensure a complete and operable airport lighting system as specified here and shown in the plans.
The equipment installation and mounting shall comply with the requirements of the National Electrical Code and state and local code agencies having jurisdiction.
The Contractor shall install the specified equipment in accordance with the applicable advisory circulars and the details shown on the plans.
125-3.2 Testing. All lights shall be fully tested by continuous operation for not less than 24 hours as a completed system prior to acceptance. The test shall include operating the constant current regulator in each step not less than 10 times at the beginning and end of the 24-hour test. The fixtures shall illuminate properly during each portion of the test.
125-3.3 Shipping and Storage. Equipment shall be shipped in suitable packing material to prevent damage during shipping. Store and maintain equipment and materials in areas protected from weather and physical damage. Any equipment and materials, in the opinion of the RPR, damaged during construction or storage shall be replaced by the Contractor at no additional cost to the owner. Painted or galvanized surfaces that are damaged shall be repaired in accordance with the manufacturer’s recommendations.
125-3.4 Elevated and In-pavement Lights. Water, debris, and other foreign substances shall be removed prior to installing fixture base and light.
A jig or holding device shall be used when installing each light fixture to ensure positioning to the proper elevation, alignment, level control, and azimuth control. Light fixtures shall be oriented with the light beams parallel to the runway or taxiway centerline and facing in the required direction. The outermost edge of fixture shall be level with the surrounding pavement. Surplus sealant or flexible embedding material shall be removed. The holding device shall remain in place until sealant has reached its initial set.
METHOD OF MEASUREMENT
125-4.1 Reflective markers will be measured by the number installed as completed units in place, ready for operation, and accepted by the RPR. Runway and taxiway lights will be measured by the number of each type installed as completed units in place, ready for operation, and accepted by the RPR. Guidance signs will be measured by the number of each type and size installed as completed units, in place, ready for operation, and accepted by the RPR.
BASIS OF PAYMENT
125-5.1 Payment will be made at the Contract unit price for each complete runway or taxiway light, guidance sign, reflective marker, runway end identification light, precision approach path indicator, or abbreviated precision approach path indicator installed by the Contractor and accepted by the RPR. This payment will be full compensation for furnishing all materials and for all preparation, assembly, and installation of these materials, and for all labor, equipment, tools and incidentals necessary to complete this item.
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Item L-125 Installation of Airport Lighting Systems 544 Payment will be made under:
L-125-5.1 New L-861E(L) Elevated Runway End Light Installed on L-867 Base Can including New Isolation Transformer, stem, plate and splice kit – per each L-125-5.2 New L-861E(L) LED Elevated Runway End Light Installed on Existing L-867 Base Can including New Isolation Transformer, stem, plate and splice kit - per each L-125-5.3 New L-861(L) Elevated Runway Edge Light Installed On Existing L-867 Base Can Including New Isolation Transformer, Stem, Plate And Splice Kit – per each L-125-5.4 New L-861T(L) Elevated Taxiway Edge Light installed on L-867 Base Can including New Isolation Transformer, stem, plate and splice kit – per each L-125-5.5 New Size 2, 1 Module Airfield Guidance Sign with Concrete Base – per each L-125-5.6 New Size 2, 2 Module Airfield Guidance Sign with Concrete Base – per each L-125-5.7 New Size 2, 3 Module Airfield Guidance Sign with Concrete Base – per each L-125-5.8 New L-849I Style E LED REIL(Paired Units Per Each Runway End) installed on new concrete base – per each
REFERENCES
The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.
Advisory Circulars (AC)
AC 150/5340-18 Standards for Airport Sign Systems
AC 150/5340-26 Maintenance of Airport Visual Aid Facilities AC 150/5340-30 Design and Installation Details for Airport Visual Aids AC 150/5345-5 Circuit Selector Switch
AC 150/5345-7 Specification for L-824 Underground Electrical Cable for Airport Lighting Circuits
AC 150/5345-26 Specification for L-823 Plug and Receptacle, Cable Connectors AC 150/5345-28 Precision Approach Path Indicator (PAPI) Systems AC 150/5345-39 Specification for L-853, Runway and Taxiway Retroreflective Markers AC 150/5345-42 Specification for Airport Light Bases, Transformer Housings, Junction Boxes, and Accessories
AC 150/5345-44 Specification for Runway and Taxiway Signs AC 150/5345-46 Specification for Runway and Taxiway Light Fixtures AC 150/5345-47 Specification for Series to Series Isolation Transformers for Airport Lighting Systems
AC 150/5345-51 Specification for Discharge-Type Flashing Light Equipment AC 150/5345-53 Airport Lighting Equipment Certification Program A.10.e
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Item L-125 Installation of Airport Lighting Systems 545 Engineering Brief (EB)
EB No. 67 Light Sources Other than Incandescent and Xenon for Airport and Obstruction Lighting Fixtures
END OF ITEM L-125
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Advisory Circular Feedback
If you find an error in this AC, have recommendations for improving it, or have suggestions for new items/subjects to be added, you may let us know by (1) mailing this form to Manager, Airport Engineering Division, Federal Aviation Administration ATTN: AAS-100, 800 Independence Avenue SW, Washington DC 20591 or (2) faxing it to the attention of the Office of Airport Safety and Standards at (202) 267-5383.
Subject: AC 150/5370-10H Date:
Please check all appropriate line items:
☐ An error (procedural or typographical) has been noted in paragraph on page . ☐ Recommend paragraph ______________ on page ______________ be changed as follows:
☐ In a future change to this AC, please cover the following subject:
(Briefly describe what you want added.)
☐ Other comments:
☐ I would like to discuss the above. Please contact me at (phone number, email address).
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STAFF REPORT
CITY COUNCIL REGULAR MEETING AGENDA
MEETING DATE: JANUARY 17, 2023
SUBMITTED: December 8, 2022 AGENDA ITEM: Consent Items
DEPARTMENT:
DEPARTMENT HEAD:
Administrative Services
Cecilia Rodriguez, Management
Analyst
CONTACT: Renee Perales, CIP Manager
831-636-4360 x17
TITLE OF ITEM: RESOLUTION NO. 2023-9, A RESOLUTION OF THE CITY
COUNCIL OF THE CITY OF HOLLISTER REJECTING ALL BIDS AND AUTHORIZING STAFF TO RE-BID THE 2022 CITYWIDE SLURRY SEAL PROJECT, CIP C2204
BRIEF DESCRIPTION: This resolution will reject all bids received and authorize staff to re-bid the 2022 Citywide Slurry Seal Project, CIP C2204.
RECOMMENDATION: Staff recommends that the City Council adopt the resolution rejecting all bids and authorizing staff to re-bid the 2022 Citywide Slurry Seal Project, CIP C2204. Additionally, staff would also like to request that council authorize staff to modify the specification and bid documents for this project to bid without the subcontractor and mobilization limits.
DEPARTMENT SUMMARY:
On June 6th, 2022, per resolution 2022-113 the “2022 Citywide Slurry Seal Project CIP C2204, was approved by the City Council and staff was authorized to call for sealed bids for this project.
Staff brought this project before council at the October 3rd, 2022 City Council meeting to award a contract, but council elected to reject all bids and rebid the project
Staff re-released this project for bid on October 28, 2022. On December 7th, eight (8) bids were received. The bids received ranged from $867,642 to $1,200,000. The Engineer’s estimate was $1,312,000.00.
The lowest bid was received from American Pavement in the amount of $867,642.38.
However, their bid reflects that over 50% of the work would be completed by subcontractors. This violates Section 8 of the General Conditions-Page GC-50, G8.01 Subcontracting, which states the Contractor shall perform with its own organization Contract work amounting to not less than fifty percent (50%) of the original total Contract price.
The second lowest bid was in the amount of $919,684.71 and was received from Dryco Construction. Their bid also had a discrepancy with the listed subcontractors. Two of their subcontractors listed did not provide the percentage of work to be performed.
The third lowest bid was received from VSS International. However, their bid also contained a bid error in that their mobilization cost exceeded the allowable cost for Mobilization. Per our specifications, under Items of Construction, compensation for A.11
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mobilization/demobilization shall not exceed 2.5% of the contract total of the base bid , not including the cost of mobilization/demobilization .
After staff reviewed the remaining bids, it was determined that a majority of the bids received, were not bid per specification and would be considered non-responsive.
Staff is requesting the City Council reject all bids and authorize staff to re-bid the project.
The bid tabulation is attached.
Staff would also like to request that council authorize staff to modify the specification and bid documents for this project to bid without the subcontractor and mobilization limits. If Council wishes not to make that allowance, staff will make an extra effort to point out the bid requirements that have caused the problems thus far so that we can award a contract with this next bid.
CEQA: N/A
FINANCIAL IMPACT: None at this time
ATTACHMENTS:
1. Bid_Results_rebid 2022 citywide slurry
THIS REPORT WAS REVIEWED BY THE CITY MANAGER WHO CONCURS WITH
THE STAFF RECOMMENDATION
Brett Miller, City Manager
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RESOLUTION NO. 2023-9
A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF HOLLISTER REJECTING ALL BIDS AND AUTHORIZING STAFF TO RE-BID THE 2022 CITYWIDE SLURRY SEAL PROJECT, CIP C2204
WHEREAS, on June 6, 2022, the City Council authorized staff to solicit bids for 2022 Citywide Slurry Seal Project, CIP C2204; and
WHEREAS, on October 3, 2022 the City Council rejected the bids received and directed staff to rebid the project; and
WHEREAS, on October 28, 2022, staff re-released the project and called for sealed bids; and
WHEREAS, on December 7, 2022, eight (8) bids were received; and
WHEREAS, there were bid irregularities on a majority of the bids received.
NOW, THEREFORE, BE IT RESOLVED, that the City Council of the City of Hollister rejects all the bids received on December 7, 2022 for the 2022 Citywide Slurry Seal Project, CIP C2204, and authorizes staff to re-bid the project.
PASSED AND ADOPTED, by the City Council of the City of Hollister at a Regular Meeting held this 17th day of January, 2023, by the following vote:
Mia Casey, Mayor
ATTEST:
Jennifer Woodworth, MMC, City Clerk
APPROVED AS TO FORM:
Lozano Smith Attorneys at Law
Mary F. Lerner, City Attorney
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I, JENNIFER WOODWORTH, MMC, City Clerk of the City of Hollister, do hereby certify that the attached Resolution No. 2023-9, is an original Resolution, or true and correct copy of a City Resolution, duly adopted by the Council of the City of Hollister at a regular meeting of said Council held on the 17th day of January, 2023, at which meeting a quorum was present.
IN WITNESS WHEREOF, I have hereunto set my hand and affixed the Official Seal of the City of Hollister this City Council day of January, 2023.
Jennifer Woodworth, MMC
City Clerk of the City of Hollister
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Item #Item Description Quantity UOM Unit Price Item Total Unit Price Item Total Unit Price Item Total Unit Price Item Total Unit Price Item Total Unit Price Item Total Unit Price Item Total Unit Price Item Total 00001 MOBILIZATION/DEMOBILIZATION 1 LS $14,000.00 $14,000.00 $21,960.00 $21,960.00 $58,627.88 $58,627.88 $51,900.00 $51,900.00 $26,000.00 $26,000.00 $50,000.00 $50,000.00 $25,000.00 $25,000.00 $80,000.00 $80,000.00 00002 TRAFFIC CONTROL AND CONSTRUCTION 1 LS $160,000.00 $160,000.00 $114,200.00 $114,200.00 $94,225.00 $94,225.00 $81,500.00 $81,500.00 $291,421.50 $291,421.50 $120,000.00 $120,000.00 $166,500.00 $166,500.00 $180,000.00 $180,000.00 00003 PREPARE WATER POLLUTION CONTROL 1 LS $8,500.00 $8,500.00 $4,090.00 $4,090.00 $7,140.00 $7,140.00 $2,500.00 $2,500.00 $2,500.00 $2,500.00 $1,000.00 $1,000.00 $1,500.00 $1,500.00 $2,000.00 $2,000.00 00004 REMOVE IN-ROADWAY WARNING LIGHTING 1 LS $27,810.00 $27,810.00 $53,000.00 $53,000.00 $26,750.00 $26,750.00 $40,000.00 $40,000.00 $30,000.00 $30,000.00 $35,000.00 $35,000.00 $30,000.00 $30,000.00 $30,000.00 $30,000.00 00005 REMOVE ADA SIGN POST AND BLUE CURB 1 LS $4,635.00 $4,635.00 $10,000.00 $10,000.00 $12,840.00 $12,840.00 $3,950.00 $3,950.00 $5,000.00 $5,000.00 $2,000.00 $2,000.00 $5,000.00 $5,000.00 $3,500.00 $3,500.00 00006 CRACK SEALING 1 LS $81,000.00 $81,000.00 $76,850.00 $76,850.00 $62,060.00 $62,060.00 $80,000.00 $80,000.00 $85,000.00 $85,000.00 $77,000.00 $77,000.00 $107,500.00 $107,500.00 $70,000.00 $70,000.00 00007 SLURRY SEAL (TYPE II)164000 SY $1.93 $316,520.00 $2.30 $377,200.00 $2.96 $485,440.00 $2.80 $459,200.00 $2.00 $328,000.00 $3.25 $533,000.00 $2.23 $365,720.00 $3.30 $541,200.00 00008 BASE FAILURE REPAIR (AC)18500 SF $9.53 $176,305.00 $9.80 $181,300.00 $9.90 $183,150.00 $12.99 $240,315.00 $11.00 $203,500.00 $10.00 $185,000.00 $17.00 $314,500.00 $12.00 $222,000.00 00009 THERMOPLASTIC PAVEMENT MARKING 3565 SF $7.21 $25,703.65 $7.42 $26,452.30 $7.49 $26,701.85 $7.00 $24,955.00 $9.00 $32,085.00 $8.00 $28,520.00 $7.35 $26,202.75 $7.00 $24,955.00 00010 THERMOPLASTIC STRIPE (12' WHITE)2761 LF $6.18 $17,062.98 $6.36 $17,559.96 $6.42 $17,725.62 $6.00 $16,566.00 $8.00 $22,088.00 $7.00 $19,327.00 $6.30 $17,394.30 $6.00 $16,566.00 00011 THERMOPLASTIC STRIPE (12' YELLOW)330 LF $6.18 $2,039.40 $6.36 $2,098.80 $6.42 $2,118.60 $6.00 $1,980.00 $8.00 $2,640.00 $7.00 $2,310.00 $6.30 $2,079.00 $6.00 $1,980.00 00012 THERMOPLASTIC STRIPE (YIELD LINE)35 LF $8.24 $288.40 $8.48 $296.80 $8.56 $299.60 $8.00 $280.00 $11.00 $385.00 $9.00 $315.00 $8.40 $294.00 $8.00 $280.00 00013 THERMOPLASTIC TRAFFIC STRIPE (DETAIL 1)3510 LF $1.06 $3,720.60 $1.06 $3,720.60 $1.07 $3,755.70 $1.00 $3,510.00 $1.25 $4,387.50 $1.10 $3,861.00 $1.05 $3,685.50 $1.00 $3,510.00 00014 THERMOPLASTIC TRAFFIC STRIPE (DETAIL 9)565 LF $1.24 $700.60 $1.27 $717.55 $1.28 $723.20 $1.20 $678.00 $1.50 $847.50 $1.30 $734.50 $1.26 $711.90 $2.00 $1,130.00 00015 THERMOPLASTIC TRAFFIC STRIPE (DETAIL 21)1365 LF $2.06 $2,811.90 $2.12 $2,893.80 $2.14 $2,921.10 $2.00 $2,730.00 $2.50 $3,412.50 $2.20 $3,003.00 $2.10 $2,866.50 $2.00 $2,730.00 00016 THERMOPLASTIC TRAFFIC STRIPE (DETAIL 22)6425 LF $2.47 $15,869.75 $2.54 $16,319.50 $2.57 $16,512.25 $2.40 $15,420.00 $3.00 $19,275.00 $2.50 $16,062.50 $2.52 $16,191.00 $2.50 $16,062.50 00017 THERMOPLASTIC TRAFFIC STRIPE (DETAIL 1920 LF $1.03 $1,977.60 $1.06 $2,035.20 $1.07 $2,054.40 $1.00 $1,920.00 $1.25 $2,400.00 $1.10 $2,112.00 $1.12 $2,150.40 $2.00 $3,840.00 00018 THERMOPLASTIC TRAFFIC STRIPE (DETAIL 260 LF $1.85 $481.00 $1.91 $496.60 $1.93 $501.80 $1.80 $468.00 $2.25 $585.00 $2.00 $520.00 $2.02 $525.20 $2.00 $520.00 00019 THERMOPLASTIC TRAFFIC STRIPE (DETAIL 38)1670 LF $1.85 $3,089.50 $1.91 $3,189.70 $1.93 $3,223.10 $1.80 $3,006.00 $2.25 $3,757.50 $2.00 $3,340.00 $2.02 $3,373.40 $2.00 $3,340.00 00020 THERMOPLASTIC TRAFFIC STRIPE (DETAIL 39)3890 LF $1.13 $4,395.70 $1.17 $4,551.30 $1.18 $4,590.20 $1.10 $4,279.00 $1.50 $5,835.00 $1.30 $5,057.00 $1.23 $4,784.70 $1.00 $3,890.00 00021 THERMOPLASTIC TRAFFIC STRIPE (DETAIL 710 LF $1.03 $731.30 $1.06 $752.60 $1.07 $759.70 $1.00 $710.00 $1.25 $887.50 $1.20 $852.00 $1.12 $795.20 $1.00 $710.00 Bid List $867,642.38 $919,684.71 $1,012,120.0 $1,035,867.0 $1,070,007.0 $1,089,014.0 $1,096,773.8 $1,208,213.5 Total Bid $867,642.38 $919,684.71 $1,012,120.0 $1,035,867.0 $1,070,007.0 $1,089,014.0 $1,096,773.8 $1,208,213.5 2022 Citywide Slurry Seal Project, CIP C2204
Owner:City of Hollister
Bid Opening:2022-12-07 * marks an allowance AMERICAN PAVEMENT Dryco Construction VSS International Inc.American Asphalt Repair & Sierra Nevada Construction GRAHAM CONTRACTORS, Pavement Coatings Co.INTERMOUNTAIN SLURRY 2150 Bell Avenue Suite 125 1120 TERMINAL WAY
Modesto, CA 95354 Sacramento, CA 95829 West Sacramento, CA Hayward, CA 94545 Sparks, NV 89435 SAN JOSE, CA 95159 Sacramento, CA 95838 RENO, NV 89502 1012 11TH STREET SUITE 9390 Elder Creek Rd 3785 Channel Dr 24200 Clawiter Road PO Box 50760 US
Bid Status:Under Review Bid Status:Under Review Bid Status:Under Review Bid Status:Under Review Bid Status:Under Review Bid Status:Under Review Bid Status:Under Review Bid Status:Under Review
US US US US US
PO BOX 26770
Bid item list
Listed Subs Chrisp Company
Fremont, CA
$182,971.20
O'Grady Paving, Inc.
2513 Wyandotte Street
Mountain View, CA 94043
$204,371.34
Pavement Rehab
Corona, CA
$75,970.50
Statewide Safety Systems
San Jose, CA
$21,400.14
Chrisp Company
Fremont, CA
$185,132.38
O'Grady Paving, Inc.
2513 Wyandotte Street
Mountain View, CA 94043
$217,802.80
Chrisp Company
Fremont, CA
License No: 374600
$1,096,773.85
Tennyson Electric Inc.
Livermore, CA
License No: 717998
$1,096,773.85
Bear Electrical Solutions
Alviso, CA
$24,164.27
Bond Blacktop Inc.
Union City, CA
$57,994.25
Chrisp Company
Fremont, CA
$181,232.03
O'Grady Paving, Inc.
2513 Wyandotte Street
Mountain View, CA 94043
$171,566.32
Chrisp Company
Fremont, CA
License No: 374600
$190,881.32
GRAHAM CONTRACTORS,
INC
PO BOX 26770
SAN JOSE, CA 95159
License No: 315789
$78,087.81
O'Grady Paving, Inc.
2513 Wyandotte Street
Mountain View, CA 94043
License No: 201696
$208,234.17
Chrisp Company
Fremont, CA
License No: 374600
$174,741.50
McKim Corporation
Gilroy, CA
License No: 976269
O'Grady Paving, Inc.
2513 Wyandotte Street
Mountain View, CA 94043
License No: 201696
$201,412.57
Tennyson Electric Inc.
Livermore, CA
Bond Blacktop Inc.
Union City, CA
License No: 746432
$54,350.84
Chrisp Company
Fremont, CA
License No: 374600
$182,991.30
O'Grady Paving, Inc.
2513 Wyandotte Street
Mountain View, CA 94043
License No: 201696
$202,120.36
Chrisp Company
Fremont, CA
License No: 374600
$207,173.40
DC Electrical
Roseville, CA
License No: 988124
$40,398.81
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STAFF REPORT
CITY COUNCIL REGULAR MEETING AGENDA
MEETING DATE: JANUARY 17, 2023
SUBMITTED: December 23, 2022 AGENDA ITEM: Consent Items DEPARTMENT:
DEPARTMENT HEAD:
Fire
Bob Martin Del Campo, Fire
Chief
CONTACT: Delia Ramon, Administrative
Assistant
831-636-4325
SPONSOR(S): Perez
TITLE OF ITEM: RESOLUTION NO. 2023-10, A RESOLUTION OF THE CITY
COUNCIL OF THE CITY OF HOLLISTER AUTHORIZING THE CALLING FOR A REQUEST FOR BID - SEALED BIDS - FOR FIRE STATION 1 AND 2 ELECTRICAL
AND LIGHTING IMPROVEMENTS AND REPAIRS PROJECT TO THE GROUNDS
AND FACILITIES OF THE HOLLISTER FIRE DEPARTMENT
BRIEF DESCRIPTION: This item would authorize staff to call for Request for Bid - sealed bids - for Fire Station 1 and 2 electrical lighting improvements and repairs to the grounds and facilities of the Hollister Fire Department.
RECOMMENDATION: Adopt the resolution authorizing the calling for Request for Bid - sealed bids - for Fire Station 1 and 2 electrical lighting improvements and repairs to the grounds and facilities of the Hollister Fire Department.
DEPARTMENT SUMMARY:
On December 20, 2022, the City issued CIP project No. E2203 for the preparation of bid documents for Fire Station 1 and 2 lighting improvements and repairs.
The project will include electrical lighting improvements and repairs to the Hollister Fire Department fire stations at the following locations:
Fire Station 1 – 110 Fifth Street
o Exterior and Interior electrical lighting improvements and repairs
Fire Station 2 – 2240 Valley View Road
o Exterior and Interior electrical lighting improvements and repairs
Staff recommends that the City Council authorize the call for Request for Bids – sealed bids - for the project.
The total estimate for this project is not to exceed $60,000.
Once bids are received, staff will return to council to seek authorization to enter into contract. Funds are currently available in the FY 2022/2023 departments approved budget.
FINANCIAL IMPACT: None at this time.
CEQA: N/A
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THIS REPORT WAS REVIEWED BY THE CITY MANAGER WHO CONCURS WITH
THE STAFF RECOMMENDATION
Brett Miller, City Manager
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RESOLUTION NO. 2023-10
A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF HOLLISTER
AUTHORIZING THE CALLING FOR A REQUEST FOR BID - SEALED BIDS - FOR FIRE STATION 1 AND 2 ELECTRICAL AND LIGHTING IMPROVEMENTS AND
REPAIRS PROJECT TO THE GROUNDS AND FACILITIES OF THE HOLLISTER
FIRE DEPARTMENT
WHEREAS, on December, 2022 the City issued a CIP Project Number for the preparation of bid documents for the Fire Station 1 and 2 Electrical Lighting and Improvements Repairs Project, CIP Project No. E2203; and
WHEREAS, these projects are identified as priority and are essential of the safety and security to the buildings and facilities; and
WHEREAS, the Request for Bid for Electrical Lighting and Improvements repairs specifications are now substantially complete for the bidding process.
NOW, THEREFORE, BE IT RESOLVED, that the City Council of the City of Hollister authorize staff to call for Request for Bids – sealed bids - for the Fire Station 1 and 2 Electrical Lighting and Improvements Repairs Project.
PASSED AND ADOPTED, by the City Council of the City of Hollister at a Regular Meeting held this 17th day of January, 2023, by the following vote:
Mia Casey, Mayor
ATTEST:
Jennifer Woodworth, MMC, City Clerk
APPROVED AS TO FORM:
Lozano Smith Attorneys at Law
Mary F. Lerner, City Attorney
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I, JENNIFER WOODWORTH, MMC, City Clerk of the City of Hollister, do hereby certify that the attached Resolution No. 2023-10, is an original Resolution, or true and correct copy of a City Resolution, duly adopted by the Council of the City of Hollister at a regular meeting of said Council held on the 17th day of January, 2023, at which meeting a quorum was present.
IN WITNESS WHEREOF, I have hereunto set my hand and affixed the Official Seal of the City of Hollister this City Council day of January, 2023.
Jennifer Woodworth, MMC
City Clerk of the City of Hollister
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STAFF REPORT
CITY COUNCIL REGULAR MEETING AGENDA
MEETING DATE: JANUARY 17, 2023
SUBMITTED: January 3, 2023 AGENDA ITEM: Consent Items
DEPARTMENT:
DEPARTMENT HEAD:
Fire
Bob Martin Del Campo, Fire
Chief
CONTACT: Delia Ramon, Administrative
Assistant
831-636-4325
SPONSOR(S): Perez
TITLE OF ITEM: RESOLUTION NO. 2023-11, A RESOLUTION OF THE CITY
COUNCIL OF THE CITY OF HOLLISTER AUTHORIZING WAIVER OF MUNICIPAL
CODE COMPETITIVE BIDDING REQUIREMENT AND PURCHASE OF MUNICIPAL
VEHICLES
BRIEF DESCRIPTION: This resolution will authorize a waiver of Municipal Code competitive bidding requirements and purchase of municipal vehicles.
RECOMMENDATION: Staff recommends Council adopt a resolution to waive the Municipal Code competitive bidding requirements and purchase of municipal equipment.
DEPARTMENT SUMMARY: For the past two years, vehicle manufacturers have been behind schedule in building and delivering vehicles to government entities and private individuals alike. The recent supply system shortages have increased the delay in building vehicles and has turned the automotive industry toward an “order first” type of purchase. This creates problems for government agencies that use the bid process. The unavailability of vehicles, vehicle prices, and build slots, even to dealers, causes dealerships to avoid the bid process because they are unsure of the delivery date of the vehicles and the projected cost; since more than a year delay may cause the model year to change, increasing the cost.
Title 3, chapter 3.06 Article II § 3.06.210 of the Municipal Code requires all purchases over $20,000 to be advertised for sealed bids. However, § 3.06.270 lists exceptions that include cooperative purchasing and sole source. Also, § 3.06.260 states “Upon approval of the City Council, the City Manager shall have the power, without notice, advertisement, or competitive bidding, to purchase for and on behalf of the city any supplies, material, equipment, or contractual service”.
With the above details in mind, the Fire Department is requesting authorization to use Sourcewell (a cooperative bidding agency) and direct purchasing of vehicles for the current Fiscal Year only, to avoid delays that may increase the cost of needed vehicles.
FINANCIAL IMPACT: Funds approved in current Fiscal Year 2022/2023 in the following Funds with Resolution No. 2022-214 - 101-2205-750080 $157,000
CEQA: N/A
THIS REPORT WAS REVIEWED BY THE CITY MANAGER WHO CONCURS WITH
THE STAFF RECOMMENDATION
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Brett Miller, City Manager
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RESOLUTION NO. 2023-11
A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF HOLLISTER
AUTHORIZING WAIVER OF MUNICIPAL CODE COMPETITIVE BIDDING
REQUIREMENT AND PURCHASE OF MUNICIPAL VEHICLES
WHEREAS, the Fire Department (the “City”) desires to obtain and is proceeding to acquire equipment and vehicles (collectively, the “Equipment”); and
WHEREAS, except as otherwise directed by the City Council (“City Council”), whenever the amount to be expended for any purchase is in excess of twenty thousand dollars ($20,000.00), the department director shall advertise for sealed bids and the purchase contract shall be awarded to the lowest responsible bidder (M.C. 3.06.210); and
WHEREAS, an exception to bidding requirements also exists for sole source items (M.C. 3.06.270); and
WHEREAS, an exception to bidding requirements also exists for purchase without notice, advertisement, or competitive bids (M.C. 3.06.260); and
WHEREAS, there is a global shortage of vehicles of all types, including the Equipment; and
WHEREAS, the City Council wishes at this time to authorize and approve all proceedings for the acquisition of the Equipment from Sourcewell and/or Schwarze Industries, Inc. (“Vendor”) and other vehicle dealers and manufacturers.
NOW, THEREFORE, BE IT RESOLVED, that the City Council of the City of Hollister as follows:
Section 1. The foregoing recitals are true and correct, and the City Council so finds and determines.
Section 2. The City Council pursuant to its authority granted by the City of Hollister Municipal Code and applicable state law hereby waives the requirement for the purchase of the Equipment that all purchases greater than twenty thousand dollars ($20,000.00) be competitively bid.
Section 3. The City Council hereby declares the Equipment to be a sole source item exempt from competitive bidding requirements.
Section 4. The City Council authorizes the purchase of the Equipment in an amount not to exceed $157,000.
Section 5. The City Manager, Assistant City Manager, and their respective designees (“Authorized Officers”) are authorized and directed to take such further actions as may be necessary or convenient to carry out the purchase of the Equipment.
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Section 6. The Authorized Officers are hereby further authorized and directed to prepare, on behalf of the City, any other documentation necessary to carry out the terms for the acquisition of the Equipment as set forth in any agreement with the Vendor consistent with the terms and conditions of this resolution. Any actions heretofore taken by the Authorized Officers, on behalf of the City, that is in conformity with the purposes and intent of this resolution and with the provisions of applicable law are hereby approved and confirmed.
PASSED AND ADOPTED, by the City Council of the City of Hollister at a Regular Meeting held this 17th day of January, 2023, by the following vote:
Mia Casey, Mayor
ATTEST:
Jennifer Woodworth, MMC, City Clerk
APPROVED AS TO FORM:
Lozano Smith Attorneys at Law
Mary F. Lerner, City Attorney
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I, JENNIFER WOODWORTH, MMC, City Clerk of the City of Hollister, do hereby certify that the attached Resolution No. 2023-11, is an original Resolution, or true and correct copy of a City Resolution, duly adopted by the Council of the City of Hollister at a regular meeting of said Council held on the 17th day of January, 2023, at which meeting a quorum was present.
IN WITNESS WHEREOF, I have hereunto set my hand and affixed the Official Seal of the City of Hollister this City Council day of January, 2023.
Jennifer Woodworth, MMC
City Clerk of the City of Hollister
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STAFF REPORT
CITY COUNCIL REGULAR MEETING AGENDA
MEETING DATE: JANUARY 17, 2023
SUBMITTED: January 3, 2023 AGENDA ITEM: Consent Items
DEPARTMENT:
DEPARTMENT HEAD:
Fire
Bob Martin Del Campo, Fire
Chief
CONTACT: Delia Ramon, Administrative
Assistant
831-636-4325
SPONSOR(S): Perez
TITLE OF ITEM: RESOLUTION NO. 2023-12, A RESOLUTION OF THE CITY
COUNCIL OF THE CITY OF HOLLISTER ACKNOWLEDGING HFD TO PERFORM
THE INSPECTION OF CERTAIN OCCUPANCIES REQUIRED ANNUALLY IN PURSUANT TO SECTION 13146.4 OF THE CALIFORNIA HEALTH AND SAFETY
CODE AND AUTHORIZE HOLLISTER FIRE DEPARTMENT TO SUBMIT THE
COMPLIANCE REPORTING FOR STATE-MANDATED LOCAL PROGRAMS FOR SENATE BILL NO. 1205
BRIEF DESCRIPTION: A resolution of the City Council of the City of Hollister to acknowledge receipt of a report made by the Fire Chief of the Hollister Fire Department regarding the 2022 inspections of certain occupancies required annually pursuant to Section 13146.4 of the California Health and Safety Code.
RECOMMENDATION: Staff recommends the City Council adopt a resolution to authorize the compliance reporting for state-mandated local programs for Senate Bill No. 1205 pursuant to Section 13146.4 of the Health and Safety Code, relating to fire protection regarding certain occupancies annual inspections.
DEPARTMENT SUMMARY: California Health & Safety Code Section 13146.4 was added in 2018 and became effective on September 27, 2018. California Health & Safety Code Sections 13146.2 and 13146.3 requires all fire departments, including the Hollister Fire Department, that provide fire protection services to perform annual inspections in every building used as a public or private school, hotel, motel, lodging house, apartment house, and certain residential care facilities for compliance with building standards, as provided. California Health & Safety Code Section 13146.2 requires all fire departments, including the Hollister Fire Department, that provide fire protection services to report annually to its administering authority on its compliance with Sections 13146.2 and 13146.3.
The City Council of the City of Hollister intends this Resolution to fulfill the requirements of the California Health & Safety Code regarding acknowledgement of the Hollister Fire Department’s compliance with California Health and Sections 13146.2 and 13146.3.
The City Council of the City of Hollister expressly acknowledges the measure of compliance of the Hollister Fire Department with California Health and Safety Code Sections 13146.2 and 13146.3 in the encompassed a reas as follows:
A. EDUCATIONAL GROUP E OCCUPANCIES:
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Educational Group E occupancies are generally those public and private schools, used by more than six persons at any one time for educational purposes through the 12th grade. Within the City of Hollister, there lie seventeen (17) Group E occupancies, buildings, structures and/or facilities.
During calendar year 2022, the Hollister Fire Department completed the annual inspection of seventeen (17) Group E occupancies, buildings, structures and/or facilities. This is a compliance rate of 100% for this reporting period.
B. RESIDENTIAL GROUP R OCCUPANCIES:
Residential Group R occupancies, for the purposes of this resolution, are generally those occupancies containing sleeping units, and include hotels, motels, apartments (two units or more), etc. as well as other residential occupancies (including a number of residential care facilities). These residential care facilities have a number of different sub -classifications, and they may contain residents or clients that have a range of needs, including those related to custodial care, mobility impairments, cognitive disabilities, etc. The residents may also be non-ambulatory or bedridden.
Within the City of Hollister, there lie three hundred and eighty-two (382) Group R (and their associated sub-categories) occupancies of this nature.
During calendar year 2022, the Hollister Fire Department completed the annual inspection of three hundred and eighty-two (382) Group R occupancies, buildings, structures and/or facilities. This is a compliance rate of 100% for this reporting period.
C. INSTITUTIONAL GROUP I OCCUPANCIES:
Institutional Group I occupancy includes, among others, for the purposes of this resolution, the use of a building or structure, or a portion the reof, in which people are cared for or live in a supervised environment, having physical limitations because of health or age, are harbored for medical treatment or other care or treatment, or in which people are detained for penal or correctional purposes or in which the liberty of the occupants is restricted.
During calendar year 2022, the Hollister Fire Department completed the annual inspection of zero (0) (biennial inspection, next inspection 2023) Group I occupancies, buildings, structures and/or fa cilities. This is a compliance rate of 100% for this reporting period.
Additional items of note regarding this compliance rate can be found in the accompanying staff report for this resolution.
FINANCIAL IMPACT: N/A
CEQA: N/A
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ATTACHMENTS:
1. 2022 - City of Hollister Inspections
THIS REPORT WAS REVIEWED BY THE CITY MANAGER WHO CONCURS WITH
THE STAFF RECOMMENDATION
Brett Miller, City Manager
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RESOLUTION NO. 2023-12
A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF HOLLISTER
ACKNOWLEDGING HFD TO PERFORM THE INSPECTION OF CERTAIN
OCCUPANCIES REQUIRED ANNUALLY IN PURSUANT TO SECTION 13146.4 OF
THE CALIFORNIA HEALTH AND SAFETY CODE AND AUTHORIZE HOLLISTER
FIRE DEPARTMENT TO SUBMIT THE COMPLIANCE REPORTING FOR STATE- MANDATED LOCAL PROGRAMS FOR SENATE BILL NO. 1205
WHEREAS, on September 27, 2018, the State of California passed Senate Bill 1205 (SB 1205) adding a new section to the California Health and Safety Code Section 13146.4 which affects every fire department or fire district in the State; and
WHEREAS, the existing law, California Health & Safety Code Sections 13146.2 and 13146.3, requires every fire department or fire district to inspect every building used as a public or private school, hotels, motels, lodging houses, and apartment complexes annually; and
WHEREAS, this new bill requires every fire department or fire district to report annually to its administering authority their compliance with the annual inspection requirements of the California Health and Safety Code. The bill also requires the administering authority to formally acknowledge receipt of the compliance report in a resolution or a similar formal document; and
WHEREAS, the Hollister Fire Department has performed calendar year 2022 inspections for compliance reporting with SB 1205; and
WHEREAS, the City Council of the City of Hollister has reviewed the report from the Fire Chief related to compliance with SB 1205.
NOW, THEREFORE, BE IT RESOLVED, that the City Council of the City of Hollister has received this report by the Hollister Fire Department for compliance reporting with Senate Bill 1205 for calendar year 2022 inspections.
PASSED AND ADOPTED, by the City Council of the City of Hollister at a Regular Meeting held this 17th day of January, 2023, by the following vote:
Mia Casey, Mayor
ATTEST:
Jennifer Woodworth, MMC, City Clerk
APPROVED AS TO FORM:
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Lozano Smith Attorneys at Law
Mary F. Lerner, City Attorney
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I, JENNIFER WOODWORTH, MMC, City Clerk of the City of Hollister, do hereby certify that the attached Resolution No. 2023-12, is an original Resolution, or true and correct copy of a City Resolution, duly adopted by the Council of the City of Hollister at a regular meeting of said Council held on the 17th day of January, 2023, at which meeting a quorum was present.
IN WITNESS WHEREOF, I have hereunto set my hand and affixed the Official Seal of the City of Hollister this City Council day of January, 2023.
Jennifer Woodworth, MMC
City Clerk of the City of Hollister
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INSPECTIONS COMPLETED
E (Schools)17 of 17 100%
TOTAL 17 of 17 100%
R-1 (Hotel/Motels)5 of 5 100%
R-2 (Apartments) 377 of 377 100%
TOTAL 382 of 382 100%
I (Jails/Courthouse)0 of 0 100%
(NEXT INSPECTION IN 2023)
TOTAL 0 of 0 100%
OVERALL INSPECTIONS 399 of 399 100%
INSTITUTIONAL GROUP I (INSPECTED BIENNIALLY)
RESIDENTIAL GROUP R
EDUCATIONAL GROUP E
COMPLIANCE
2022 CITY OF HOLLISTER
STATE MANDATED INSPECTIONS
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STAFF REPORT
CITY COUNCIL REGULAR MEETING AGENDA
MEETING DATE: JANUARY 17, 2023
SUBMITTED: December 7, 2022 AGENDA ITEM: Consent Items
DEPARTMENT:
DEPARTMENT HEAD:
Community Services
William Via, Community Services
Director
CONTACT: William Via, Community Services
Director
TITLE OF ITEM: RESOLUTION NO. 2023-13, A RESOLUTION OF THE CITY
COUNCIL OF THE CITY OF HOLLISTER TO TRANSFER RESPONSIBILITY OF
INSPECTIONS OF DAMS (LEVEES) AT THE IWWTP TO THE CITY OF HOLLISTER
BRIEF DESCRIPTION: This resolution will transfer the responsibility of inspections for dams (levees) at the Industrial Wastewater Treatment Facility from the State Department of Water Resources, Division of Safety of Dams Jurisdiction to the City of Hollister.
RECOMMENDATION: Staff recommends Council adopt a resolution to accept the responsibility of inspecting the levees at the IWWTP.
DEPARTMENT SUMMARY: The Industrial Wastewater Treatment Plant consists of six (6) ponds, numbered 1 through 6, that are utilized in the treatment of industrial wastewater and seasonal storm water. During a recent site visit by the State Department of Water Resources Division of Safety of Dams (DSOD), staff was informed that ponds 1 and 2 were non-jurisdictional, meaning DSOD does not have jurisdiction over their safety and/or construction, and ponds 3 through 6 were eligible for an exemption due to their height. The California Water Code has provisions for wastewater storage and treatment ponds that allow f or exemptions from DSOD inspections with an approved resolution from the agency's governing Board stating that the local agency will take responsibility for the inspections and safety of those dams (levees).
If the exemption is granted by DSOD, there will be no increased risk of failure because the City of Hollister will assume responsibility for the integrity of the levees, which will include regular inspections by a registered civil engineer, and periodic condition assessments by qualified third party consultants to determine whether any maintenance projects are needed.
FINANCIAL IMPACT: Minimal costs for annual inspections.
CEQA: Exempt
THIS REPORT WAS REVIEWED BY THE CITY MANAGER WHO CONCURS WITH
THE STAFF RECOMMENDATION
Brett Miller, City Manager
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RESOLUTION NO. 2023-13
A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF HOLLISTER TO
TRANSFER RESPONSIBILITY OF INSPECTIONS OF DAMS (LEVEES) AT THE
IWWTP TO THE CITY OF HOLLISTER
WHEREAS, the Division of Safety Dams (DSOD) through the State Department of Water Resources (DWR) oversees the design, construction, and maintenance of over 1,200 dams in California; and
WHEREAS, prior to construction of Ponds 3, 4, 5, and 6 at the Industrial Wastewater Treatment Plant (IW WTP), the City of Hollister was required to apply for State certification of said facilities through the DSOD, thereby falling under DSOD's jurisdiction; and
WHEREAS, said certification process entails DSOD approval of plans and specifications, maintenance of the integrity of the IWWTP perimeter levee, compliance with water level requirements in the basins, and commitment to regular inspections; and
WHEREAS, pursuant to California Water Code section 6025.S(a), the requirements for State regulation and supervision of safety of dams, are not applicable to wastewater treatment and storage ponds constructed as a part of a wastewater control facility; and
WHEREAS, Ponds 1 and 2 are non-jurisdictional due to their height; and
WHEREAS, the Community Services Director is seeking authorization to request exemption from the State DWR DSOD, for Ponds 3, 4, 5, and 6 of the IWWTP; and
WHEREAS, the exemption includes assumption of the responsibility of the inspections of Ponds 3, 4, 5, and 6 by City of Hollister.
NOW, THEREFORE, BE IT RESOLVED, that the City Council of the City of Hollister herby:
1. Finds that the aforementioned levees will continue to be constructed and operated to standards adequate to protect life and property
2. Authorizes City of Hollister acceptance from Division of Safety of Dams responsibility for regulating said construction and operation
3. Finds that City of Hollister shall supervise and regulate the design, construction, operation, enlargement, replacement, and removal of the levees in conformance with all applicable construction and regulatory requirements
4. Authorizes the Community Services Director or designee to request decertification from the State DWR DSOD, for Ponds 3, 4, 5, and 6 at the IWWTP
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PASSED AND ADOPTED, by the City Council of the City of Hollister at a Regular Meeting held this 17th day of January, 2023, by the following vote:
Mia Casey, Mayor
ATTEST:
Jennifer Woodworth, MMC, City Clerk
APPROVED AS TO FORM:
Lozano Smith Attorneys at Law
Mary F. Lerner, City Attorney
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I, JENNIFER WOODWORTH, MMC, City Clerk of the City of Hollister, do hereby certify that the attached Resolution No. 2023-13, is an original Resolution, or true and correct copy of a City Resolution, duly adopted by the Council of the City of Hollister at a regular meeting of said Council held on the 17th day of January, 2023, at which meeting a quorum was present.
IN WITNESS WHEREOF, I have hereunto set my hand and affixed the Official Seal of the City of Hollister this City Council day of January, 2023.
Jennifer Woodworth, MMC
City Clerk of the City of Hollister
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STAFF REPORT
CITY COUNCIL REGULAR MEETING AGENDA
MEETING DATE: JANUARY 17, 2023
SUBMITTED: January 5, 2023 AGENDA ITEM: Consent Items
DEPARTMENT:
DEPARTMENT HEAD:
Fire
Bob Martin Del Campo, Fire
Chief
CONTACT: Delia Ramon, Administrative
Assistant
831-636-4325
SPONSOR(S): Perez
TITLE OF ITEM: ORDINANCE NO. 12152 1224 ORDINANCE OF THE CITY OF HOLLISTER AMENDING CHAPTER 15.04 OF THE CITY OF HOLLISTER BUILDING CODE, AND ADOPTING THE CALIFORNIA BUILDING STANDARDS CODE 2022 EDITION OF THE CALIFORNIA FIRE CODE AND APPENDICES TITLE 24, PART 9
DESCRIPTION: On December 5, 2022, a first reading and introduction of Ordinance No. 1224, amending Chapter 15.04 Building Regulations of the Hollister Municipal Code, and adopting by reference, 2022 Edition of California Building Standards Code of the California Code of Regulations 2022 Edition California Fire Code and appendices Title 24, Part 9 was conducted. Staff was directed to hold a second reading of this Ordinance for adoption at the January 17, 2023 regular meeting for the adoption.
RECOMMENDATION: Read by title only, waive full reading, and adopt Ordinance No. 1224, amending Chapter 15.04 of the Hollister Building Code and adopting by reference - 2022 Edition California Fire Code and appendices Title 24, Part 9 to Title 15 “Buildings and Construction” of the City of Hollister Municipal Code.
DEPARTMENT SUMMARY: Fire protection agencies are generally required to adopt the State Building Standards, and agencies are allowed to make amendments to those state standards when justified by local topographical, climatic and geographical conditions.
The International Code Council promulgates the International Fire Code, a nationally recognized compilation of rules and regulations. The International Code Co uncil has conducted open code hearings that permit participation by National, State, and local code officials; as well as industry representatives, consultants, and other private parties with an interest in the International Fire Code. The International Fire Code has been printed and published as a Code in book form within the meaning of Section 50022.1 of the Government Code of the State of California.
Under this adopting ordinance, specific amendments to building standards are more restrictive than those contained within the 2022 Edition of the International Fire Code with amendments as adopted by the California Building Standards Commission and published as the 2022 Edition of the California Fire Code.
Under the provisions of Section 18941.5 of the Health and Safety Code, local amendments are based on climatic, topographical and geological conditions.
It is clearly understood that the adoption of such amendments may not prevent the incidence of fire, the implementation of these various amendments to the Fire Code is A.16
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intended to reduce the potential loss of life and property and damage to the environment caused thereby.
The ordinance will read as follows under TITLE 15 - and will include this amended section to the City Municipal Code.
THE City Council and the Hollister Fire Department ORDAINS AS FOLLOWS:
Part 1: Adoption of Code with Exclusions
Part 2: Local Amendments
Part 3: International Fire Code Adopted by Reference
Part 4: Severability
Part 5: Effective Date and Publication
Part 1. Adoption of Code with Exclusions
The Hollister Fire Department adopts the 2022 California Fire Code, Title 24, Part 9, in its entirety, including Appendices, incorporating those sections of the International Fire Code, 2022 Edition not adopted by the state.
Part 2. Local Amendments
The following sections are hereby amended or added.
Part 3. International Fire Code Adopted by Reference
The 2022 International Fire Code, including appendices published by the International Code Council, is hereby adopted by reference.
Part 4. Severability
If any section, subsection, clause, phrase, or portion of this ordinance is for any reason held to be invalid or unconstitutional by the decision of any court or competent jurisdiction, such decision shall not affect the validity of the remaining portions of this ordinance. The City of Hollister hereby declares that it would have adopted this ordinance and each section, subsection, sentence, clause, phrase or portion thereof, irrespective of the fact that any one or more sections, subsections, clauses, phrases or portions be declared invalid or unconstitutional.
Part 5. Effective Date and Publication
This ordinance shall become effective and be in full force and effect thirty (30) days after the date of its passage and after ratification by the City of Hollister and submission of a copy of this ordinance to the California Department of Housing and Community Development, provided this ordinance is published in full or in summary within fifteen (15) days after its adoption in the Freelance, a newspaper of general circulation.
This ordinance was introduced and the title thereof read at the regular meeting of the City of Hollister on December 5, 2022.
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FINANCIAL IMPACT: N/A
CEQA: N/A
THIS REPORT WAS REVIEWED BY THE CITY MANAGER WHO CONCURS WITH
THE STAFF RECOMMENDATION
Brett Miller, City Manager
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ORDINANCE NO. 12152
1224 ORDINANCE OF THE CITY OF HOLLISTER AMENDING CHAPTER 15.04 OF
THE CITY OF HOLLISTER BUILDING CODE, AND ADOPTING THE CALIFORNIA BUILDING STANDARDS CODE 2022 EDITION OF THE CALIFORNIA FIRE CODE AND APPENDICES TITLE 24, PART 9
WHEREAS, Fire protection agencies are generally required to adopt the State Building Standards and agencies are allowed to make amendments to those state standards when justified by local topographical, climatic and geographical conditions; and
WHEREAS, the International Code Council promulgates the International Fire Code, a nationally recognized compilation of rules and regulations. The International Code Council has conducted open code hearings that permit participation by National, State, and local code officials; as well as industry representatives, consultants, and other private parties with an interest in the International Fire Code; and
WHEREAS, the International Fire Code has been printed and published as a Code in book form within the meaning of Section 50022.1 of the Government Code of the State of California; and
WHEREAS, under this adopting ordinance, specific amendments to building standards are more restrictive than those contained within the 2022 Edition of the International Fire Code with amendments as adopted by the California Building Standards Commission and published as the 2022 Edition of the California Fire Code; and
WHEREAS, under the provisions of Section 18941.5 of the Health and Safety Code, local amendments are based on climatic, topographical and geological conditions.
NOW THEREFORE, BE IT RESOLVED, that the City Council of the City of Hollister does hereby ordain as follows:
It is clearly understood that the adoption of such amendments may not prevent the incidence of fire, the implementation of these various amendments to the Fire Code is intended to reduce the potential loss of life and property and damage to the environment caused thereby.
Part 1: Adoption of Code with Exclusions
Part 2: Local Amendments
Part 3: International Fire Code Adopted by Reference
Part 4: Severability
Part 5: Effective Date and Publication
This Ordinance shall take effect and be in force thirty (30 ) days from and after its final passage.
INTRODUCED at a regular City Council meeting on the 5 day of December, 2022.
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PASSED AND ADOPTED, by the City Council of the City of Hollister at a Regular Meeting held this 17th day of January, 2023, by the following vote:
Mia Casey, Mayor
ATTEST:
Jennifer Woodworth, MMC, City Clerk
APPROVED AS TO FORM:
Lozano Smith Attorneys at Law
Mary F. Lerner, City Attorney
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I, JENNIFER WOODWORTH, MMC, City Clerk of the City of Hollister, do hereby certify that the attached Ordinance No. 12152 is an original Ordinance, or true and correct copy of a City Ordinance, duly adopted by the Council of the City of Hollister at a regular meeting of said Council held on the 17th day of January, 2023, at which meeting a quorum was present.
IN WITNESS WHEREOF, I have hereunto set my hand and affixed the Official Seal of the City of Hollister this City Council day of January, 2023.
Jennifer Woodworth, MMC
City Clerk of the City of Hollister
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STAFF REPORT
CITY COUNCIL REGULAR MEETING AGENDA
MEETING DATE: JANUARY 17, 2023
SUBMITTED: December 20, 2022 AGENDA ITEM: Public Hearings DEPARTMENT:
DEPARTMENT HEAD:
Planning
Adrianna Ortiz, Acting Planning
Director
CONTACT: Ambur Cameron, Associate
Planner
831-636-4360 x
TITLE OF ITEM: RESOLUTION NO. 2023-14, A RESOLUTION OF THE CITY
COUNCIL OF THE CITY OF HOLLISTER ADOPTING THE CITY OF HOLLISTER'S 2022 LOCAL HAZARD MITIGATION PLAN.
BRIEF DESCRIPTION: A Resolution of the City of Hollister Adopting the City of Hollister’s 2022 Local Hazard Mitigation Plan.
RECOMMENDATION: Staff recommends the City Council adopt a resolution approving the City of Hollister’s 2022 Local Hazard Mitigation Plan.
DEPARTMENT SUMMARY: In February of 2020, the City embarked on the City’s Comprehensive General Plan Update. A major component of this update involves addressing natural and human-caused hazards through the General Plan’s Safety Element and Local Hazard Mitigation Plan (LHMP). Content within the Safety Element is dictated by California Government Code Section 65302 (g), which requires the creation of goals, policies, and implementing actions to address natural and human- caused hazards. The LHMP is governed by the Stafford Act, as amended by the Disaster Mitigation Act of 2000 (DMA 2000). These requirements ensure that a community focuses on the reduction of loss of life and property, human suffering, and economic disruption, as well as provides disaster assistance for costs resulting from natural disasters. Both the LHMP and General Plan can function independently, however, the City purposefully incorporated this update within the General Plan Update in order to streamline and maintain consistency between both plans.
The City’s previous LHMP was adopted in 2015 as part of the County of San Benito Multi-Jurisdictional Hazard Mitigation Plan (MJHMP). Under the requirements of DMA 2000, LHMP’s need to be updated and approved by the Federal Emergency Management Agency (FEMA) every five years to maintain eligibilit y for federal grant opportunities under the Hazard Mitigation Grant Program (HMGP), Flood Mitigation Assistance (FMA), and Building Resilient Infrastructure and Communities (BRIC) programs. These funding opportunities become available annually (FMA & BRIC), or as a result of a Presidential Disaster Declaration (HMGP).
One of the many requirements to receive State and Federal approval includes incorporating community feedback, as well as, developing a robust planning team of key community stakeholders with expertise on local hazards. The planning team consisted of key stakeholders from City departments, local school districts, local utility providers, local non-profits, neighboring cities, and County and State agencies.
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The first planning meeting took place on March 11, 2021. Subsequent meetings and plan development continued through July 2021. The plan was then transmitted to San Benito County for incorporation into the County’s MJHMP.
The plan was presented to the General Plan Advisory Committee on Apri l 27, 2021 and then released for public review on February 28, 2022. The City did not receive any comments on the Public Review Draft LHMP. The plan was then sent to the California Office of Emergency Services (CalOES) for their review and approval. CalOES completed their review and transmitted the document to FEMA for their review and approval. On October 17, 2022 FEMA transmitted the “Approvable Pending Adoption ” letter that allows the City to adopt this plan starting the 5 -year implementation period.
ANALYSIS:
The 2022 Hollister LHMP assesses the significant natural and human-caused hazards that may affect the City and its inhabitants. The plan evaluates these relevant hazards, assesses the population and potentially vulnerable structures and recommends mitigation strategies and actions to be implemented in the future to reduce these vulnerabilities and aid in creating a more resilient community. These future mitigation actions include policies, programs, projects, and tools to implement over the long term to reduce future economic, infrastructure and personal property losses community wide.
FINANCIAL IMPACT: The creation and implementation of the mitigation strategies and actions developed within the plan will increase the City’s development of risk reduction programs and improvements, which can ultimately reduce significant costs associated with disaster response and recovery within the City.
CEQA: The LHMP is exempt form CEQA, pursuant to common sense exemption under State CEQA Guidelines Section 15601(b)(3). The activity is covered by the general rule that CEQA applies only to projects that have the potential for causing significant effect on the environment. Where it can be seen with certainty that there is no possibility that the activity in question may have a significant effect on the environment, the activity is not subject CEQA. The LHMP acts a guidebook for hazard mitigation strategies but does no implement any specific project, action or funding.
ATTACHMENTS:
1. LHMP Hollister City Council Presentation_01172023
2. 10.17.2022 Preliminary FEMA Approval Letter
3. San Benito County MJHMP_9_2022_FINAL
THIS REPORT WAS REVIEWED BY THE CITY MANAGER WHO CONCURS WITH
THE STAFF RECOMMENDATION
Brett Miller, City Manager
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RESOLUTION NO. 2023-14
A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF HOLLISTER ADOPTING THE CITY OF HOLLISTER'S 2022 LOCAL HAZARD MITIGATION PLAN.
WHEREAS, the City has prepared a Local Hazard Mitigation Plan update in compliance with the Disaster Mitigation Act of 2000; and
WHEREAS, this Local Hazard Mitigation Plan (LHMP), has been prepared in compliance with California with California Government Code Sections 8685.9 and 65302.6, which ensures this plan will be integrated with the City of Hollister General Plan Safety Element; and
WHEREAS, the City has received a letter from FEMA identifying the City’s LHMP as eligible for approval pending final adoption; and
WHEREAS, City Council adoption of a current LHMP will make the City eligible to receive earmarked mitigation grant funding, as well as eligible to apply for additional federal mitigation grants; and
WHEREAS, City staff has collaborated with numerous partner agencies, including San Benito County, and hazard experts to develop the LHMP; and
WHEREAS, hereby adopts this Plan as the official Local Hazard Mitigation Plan, which is an annex to the Multi-Jurisdictional Hazard Mitigation Plan for the County of San Benito; and
WHEREAS, the respective officials identified in the Plan are hereby directed to pursue implementation of the recommended actions assigned to them; and
WHEREAS, City officials designated in the Plan are authorized and directed to pre pare future revisions and plan maintenance required by the Disaster Mitigation Act of 2000 and FEMA, and submit them to the City Council for approval for a period of five (5) years from the date of this resolution; and
WHEREAS, the City of Hollister will comply with all applicable Federal Statutes and Regulations in effect with respect to the periods for which it receives grant funding, in compliance with 44 CFR 13.11 (c); and will amend the Plan whenever necessary to reflect applicable changes in Tribe, State, or Federal Laws and Statutes as required by 44 CFR 13.11 (d); and
WHEREAS, on October 17, 2022, FEMA determined the plan to be eligible for final approval pending its adoption by the Hollister City Council.
NOW, THEREFORE, BE IT RESOLVED, that the City Council of the City of Hollister does hereby approve and adopt the Hollister Local Hazard Mitigation Plan.
PASSED AND ADOPTED, by the City Council of the City of Hollister at a Regular Meeting held this 17th day of January, 2023, by the following vo te:
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Mia Casey, Mayor
ATTEST:
Jennifer Woodworth, MMC, City Clerk
APPROVED AS TO FORM:
Lozano Smith Attorneys at Law
Mary F. Lerner, City Attorney
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I, JENNIFER WOODWORTH, MMC, City Clerk of the City of Hollister, do hereby certify that the attached Resolution No. 2023-14, is an original Resolution, or true and correct copy of a City Resolution, duly adopted by the Council of the City of Hollister at a regular meeting of said Council held on the 17th day of January, 2023, at which meeting a quorum was present.
IN WITNESS WHEREOF, I have hereunto set my hand and affixed the Official Seal of the City of Hollister this City Council day of January, 2023.
Jennifer Woodworth, MMC
City Clerk of the City of Hollister
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CITY OF HOLLISTER
LO CAL HAZARD MITIGATION PLAN
CITY COUNCIL HEARING
JANUARY 17, 2023
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PROJECT OVERVIEW
2 Update of a Local Hazard Mitigation Plan (LHMP)
Led by City of Hollister Planning Department
Future Mitigation Grant Opportunities
WHAT
WHO
WHY
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3 •LHMP works with the
Safety Element to:
•Address Hazards of
Concern
•Align funding sources
with future actions
FITTING THE PIECES TOGETHER
01 More Specific
More General
Long TimelineShort
Timeline
General Plan
Safety Element
Local Hazard Mitigation Plan
(LHMP)
Emergency
Operations Plan
(EOP)
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WHAT IS HAZARD MITIGATION?
Sustained actions taken
to reduce or eliminate
long-term risk to life and
property from hazards
Communities reduce
their vulnerability
through the
development of a
Local Hazard
Mitigation Plan
(LHMP)
4 Actions that make the
community less
vulnerable to natural
hazards before disasters
strike
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WHAT DOES AN LHMP DO?
5 PROVIDES DIRECTION TO
IMPLEMENT AND MONITORANALYZES HAZARD RISKS IDENTIFIES POLICIES /
PROJECTS TO REDUCE RISK
DISCUSS COMMUNITY
HAZARDS
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WHO
PA RTICIPAT ED IN
THE LHMP
PLANNING
PROCESS?
6 Code
Enforcement
San Benito
County
Information
System &
Te chnology
Recreation
Development
Services -
Planning
Po lice
Fire
Administrative
Services
Airport
Management
Services
Development
Services -
Building
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7 WHY PREPARE AN LHMP?
Reduces injury, loss of life,
property damage, and loss of
services from natural disasters.
Eligibility for FEMA Grants:
Building Resilient Infrastructure and Communities (BRIC)* Flood Mitigation Assistance (FMA)
Hazard Mitigation Grant Program (HMGP)
Source Image: from Jonathan Nourok.
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WHAT HAZARDS ARE IN THE LHMP?
8 Seismic
Hazards
Human
Caused
Hazards
Haz Mat
Release
Geologic
Hazards
Wildfire
Aircraft
Incident
Severe
Weather
Diseases
and Pests
Drought
Source Image: ocregister.com.
Flooding
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WHAT PROCESS WA S USED TO DEVELOP THE LHMP?
9 Plan Development
March 2021 –July
2021
Public
Review/Stakeholder
Coordination
April 2021 –
February 2022
Plan Review (Cal
OES/FEMA)
April 2022 –October
2022
Plan Adoption
TODAY
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Online Surveys (English/Spanish)
•42 participant entries
Online Promotion
•Social Media: Facebook | Tw itter |
Instragram
Public Meeting
•April 27, 2021 GPAC Meeting via Zoom
Draft Plan Review Period
•February 28, 2022 Plan Re leased for
Public Review
•Comments received did not result in
changes to the plan.
10 PUBLIC PARTICIPAT ION
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11 PLAN IMPLEMENTAT ION
Implementation Period :
5 years
Implementation Focus:
Mitigation Actions and Strategies (Table 5-3)
Implementation Tools:
To help with Implementation we provided an
Implementation Handbook (Appendix E)
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QUESTIONS?
PLEASE CONTACT:
CITY OF HOLLISTER
AMBUR CAMERON | [email protected]
EVA KELLY | [email protected]
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U.S. Department of Homeland Security
FEMA Region 9
1111 Broadway, Suite 1200
Oakland, CA 94607-4052
www.fema.gov
October 17, 2022
Kris Mangano
Emergency Services Manager
Office of Emergency Services
471 4th Street
Hollister, CA 95023
Dear Kris Mangano:
The Federal Emergency Management Agency (FEMA) has completed its review of the County of San Benito Multi-Jurisdictional Hazard Mitigation Plan and has determined that this plan is eligible for final approval pending its adoption by the County of San Benito and all participating jurisdictions. Please see the enclosed list of approvable pending adoption jurisdictions.
Formal adoption documentation must be submitted to FEMA Region 9 by at least one participating jurisdiction within one calendar year of the date of this letter, or the entire plan must be updated and resubmitted for review. FEMA will approve the plan upon receipt of the documentation of formal adoption.
Once the plan is approved, each participating jurisdiction must adopt the plan within five calendar years of the date of the approval. The adoption of the plan by each jurisdiction ensures that jurisdiction’s continued eligibility for funding under FEMA’s Hazard Mitigation Assistance (HMA) programs. All requests for funding, however, will be evaluated individually according to the specific eligibility, and other requirements of the particular program under which applications are submitted.
If you have any questions regarding the planning or review processes, please contact the FEMA Region 9 Hazard Mitigation Planning Team at [email protected].
Sincerely,
Alison Kearns
Planning and Implementation Branch Chief
Mitigation Division
FEMA Region 9
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San Benito County Hazard Mitigation Plan Approvable Pending Adoption Notice October 17, 2022