Free Joint Preliminary Status Report - District Court of Federal Claims - federal

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1. CONTRACT ID CODE

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT
2. AMENDMENT/MODIFICATION NO. 3. EFFECTIVE DATE 4. REQUISITION/PURCHASE REQ. NO. 7. ADMINISTERED BY (If other than Item 6)

1 7
5. PROJECT NO. (If applicable) CODE

0006
6. ISSUED BY CODE

10 APRIL 2001
N62474

ENGINEERING FIELD ACTIVITY WEST NAVAL FACILITIES ENGINEERING COMMAND 900 COMMODORE DRIVE SAN BRUNO, CA 94066-5006
8. NAME AND ADDRESS OF CONTRACTOR (No., street, county, State, and ZIP Code) () 9A. AMENDMENT OF SOLICITATION NO.

X

N62474-00-R-3035
9B. DATED (SEE ITEM 11)

11 December 2000
10A. MODIFICATION OF CONTRACT/ORDER NO.

10B. DATED (SEE ITEM 13) CODE FACILITY CODE

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS X The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offers ¨ is extended, X is not extended.
Offers must acknowledge receipt of this amendment prior to the hour and date specified in the solicitation or as amended, by one of the following methods: copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted; of (c) By (a) By completing Items 8 and 15, and returning separate letter of telegram which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGEMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN REJECTION OF YOUR OFFER. If by virtue of this amendment you desire to change an offer already submitted, such change may be made by telegram or letter, provided each telegram or letter makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified. 12. ACCOUNTING AND APPROPRIATION DATA (If required)

13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACTS/ORDERS, IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.
() A. B. C. D.
THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE CONTRACT ORDER NO. IN ITEM 10A.

THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, appropriation date, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(b) THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF: OTHER (Specify type of modification and authority)

E. IMPORTANT: Contractor

¨ is not, ¨ is required to sign this document and return

copies to the issuing office.

14. DECRIPTION OF AMENDMENT/MODIFICATION (Organized by UCF section headings, including solicitation/contract subject matter where feasible.)

AMENDMENT
DESIGN-BUILD OF THE BUILDING 245 EXTENSION AT THE NAVAL POSTGRADUATE SCHOOL, MONTEREY, CALIFORNIA 1. This amendment is intended for those offerors who submitted (Part One) proposals under the solicitation which addressed (1) Past Performance, and (2) Corporate and Key Personnel Experience.

(SEE ENCLOSED)
Except as provided herein, all terms and conditions of the document referenced in Item 9A or 10A, as heretofore changed, remains unchanged and in full force and effect. 15A. NAME AND TITLE OF SIGNER (Type of print) 16A. NAME AND TITLE OF CONTRACTING OFFICER (Type or Print)

15B. CONTRACT/OFFEROR

15C. DATE SIGNED

16B. UNITED STATES OF AMERICA

16C. DATE SIGNED

(Signature of person authorized to sign) NSN 7540-01-152-8070 PREVIOUS EDITION UNUSABLE

(Signature of Contracting Officer) STANDARD FROM 30 (REV. 10-83) Prescribed by GSA FAR (48 DFR) 53.243

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N62474-00-R-3035 Amendment 0006 Page 2 of 7 AMENDMENT 0006 (CONTINUED) 2. This amendment is providing offerors with the following Division 02 through 16 Specification Sections: DIVISION 02 - SITE WORK 02220 02231 02301 02302 02315 02468 02510 02530 02559 02630 02741 02811 02930 02935 SITE DEMOLITION CLEARING AND GRUBBING EARTHWORK FOR STRUCTURES AND PAVEMENTS EXCAVATION, BACKFILLING, AND COMPACTING FOR UTILITIES EXCAVATION AND FILL DRILLED FOUNDATION CAISSONS WATER DISTRIBUTION SANITARY SEWERAGE VALVE MANHOLES AND PIPING AND EQUIPMENT IN VALVE MANHOLES STORM DRAINAGE ASHPALT CONCRETE FOR VEHICULAR TRAFFIC IRRIGATION SPRINKLER SYSTEMS EXTERIOR PLANTS LANDSCAPE MAINTENANCE

DIVISION 03 - CONCRETE 03300 CAST IN PLACE CONCRETE

DIVISION 05 - METALS 05120 05310 05500 STRUCTURAL STEEL STEEL DECKS METAL FABRICATIONS

DIVISION 06 - WOODS & PLASTICS 06200 FINISH CARPENTRY

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N62474-00-R-3035 Amendment 0006 Page 3 of 7 AMENDMENT 0006 (CONTINUED) DIVISION 07 - THERMAL & MOISTURE PROTECTION 07212 07513 07600 07840 07920 MINERAL FIBER BATT INSULATION BUILT-UP ASHPALT ROOFING (MINERAL SURFACED) FLASHING AND SHEET METAL FIRESTOPPING JOINT SEALANTS

DIVISION 08 - DOORS & WINDOWS 08110 08120 08210 08450 08710 08800 08900 STEEL DOORS AND FRAMES ALUMINUM STOREFRONT SYSTEM ­ Exterior Metal Wall/Window Assembly WOOD DOORS FRAMELESS TEMPERED GLASS DOORS DOOR HARDWARE GLAZING GLAZED CURTAIN WALL

DIVISION 09 - FINISHES 09100 09250 09310 09510 09611 09630 09685 09900 METAL SUPPORT ASSEMBLIES GYPSUM BOARD CERAMIC TILE, QUARRY TILE, AND PAVER TILE ACOUSTICAL CEILINGS FIBERGLASS REINFORCED FLOOR SEALING SYSTEM STONE FLOORING CARPET TILE PAINTS AND COATINGS

DIVISION 10 - SPECIALTIES 10100 10153 10201 10400 10411 10520 10615 10800 MARKERBOARDS TOILET PARTITIONS ROOF SCREEN LOUVERS IDENTIFICATION DEVICES SAFETY AND ACCESSIBILITY SIGNAGE FIRE EXTINGUISHER CABINETS DEMOUNTABLE GYPSUM BOARD PARTITIONS TOILET AND BATH ACCESSORIES

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N62474-00-R-3035 Amendment 0006 Page 4 of 7 AMENDMENT 0006 (CONTINUED) DIVISION 11 - EQUIPMENT 11132 PROJECTION SCREENS

DIVISION 12 - FURNISHINGS 12490 BLINDS, VENETIAN

DIVISION 13 - SPECIAL CONSTRUCTION 13855 13930 ANALOG/ADDRESSABLE INTERIOR FIRE ALARM SYSTEM WET PIPE FIRE SUPPRESSION SPRINKLERS

DIVISION 15 - MECHANICAL 15050 15070 15080 15181 15185 15400 15601 15720 15730 15810 15901 15950 BASIC MECHANICAL MATERIALS AND METHODS MECHANICAL SOUND, VIBRATION, AND SEISMIC CONTROL MECHANICAL INSULATION CHILLED WATER PIPING LOW TEMPERATURE WATER HEATING SYSTEM PLUMBING SYSTEMS CENTRAL REFRIGERATION EQUIPMENT FOR AIR CONDITIONING ­ Air-Cooled Water Chiller AIR HANDLING UNITS ­ Central Station Air Handling Unit and Variable Air Volume Terminal Units UNITARY AIR CONDITIONING EQUIPMENT DUCTWORK AND DUCTWORK ACCESSORIES SPACE TEMPERATURE CONTROL SYSTEMS HVAC TESTING/ADJUSTING/BALANCING

DIVISION 16 - ELECTRICAL 16050 16402 16510 16520 16710 BASIC ELECTRICAL MATERIALS AND METHODS INTERIOR DISTRIBUTION SYSTEM INTERIOR LIGHTING EXTERIOR LIGHTING STRUCTURED TELECOMMUNICATIONS CABLING AND PATHWAY SYSTEM

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N62474-00-R-3035 Amendment 0006 Page 5 of 7 AMENDMENT 0006 (CONTINUED)

3. The following changes are made to Amendment 0004 attachments: (a) Division 1, Section 01112, Part 1, Sub-paragraph 1.1.2.b., at the end of this subparagraph, add the following: "The clear height of the basement, from the finished floor to the bottom of the beams, shall not be less than twelve (12) feet." (b) Division 1, Section 01112, Part 1, Sub-paragraph 1.1.2.c., at the end of this subparagraph, add the following: "The clear height of the third floor, from the finished floor to the bottom of the beams, shall not be less than twelve (12) feet." (c) Division 1, Section 01575, Part 3, Sub-paragraph 3.7.1, Blasting Operations: Replace the first sentence, "The use of silica sand is prohibited in sandblasting" with "The use of silica containing abrasive is prohibited in abrasive procedures." (d) NAVFAC DWG NO. 6458083, DWG NO. A6, BUILDING SECTION: Change the ceiling height in the "Conference/Study" spaces from "12 feet" to "9 feet 10 inches."

4. The following changes are made to the attachments to this Amendment (0006): (e) Division 5, Section 05120, Part 3, Sub-paragraph 3.3, Connections: Last sentence, change "........shall be clean or dirt rust,......" to "........shall be clean of dirt and rust,........." (f) Division 7, Section 07513, Part 2, Sub-paragraph 2.2, Materials: Add the following: "Asbestos containing roof or deck insulation, felt, cement, sealer or similar products shall not be used." (g) Division 7, Section 07840, Part 3, Sub-paragraph 3.2.4, Insulated Pipes and Ducts: At the end of the paragraph, add the following: "Replacement thermal insulation shall be asbestos free."

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N62474-00-R-3035 Amendment 0006 Page 6 of 7 AMENDMENT 0006 (CONTINUED) (h) Division 8, Section 08710, Part 3, Sub-paragraph 3.6, Hardware Sets, add new paragraph 3.7 Installation, Testing, Training and Acceptance of the Electrified Card Key System as follows: "3 7 Installation, Testing, Training and Acceptance of the Electrified Card Key System The installation of the electrified card key system shall conform to the NEC requirements and the applicable requirements of Section 16402 - Interior Distribution System. Manufacturer's technical field representative to assist the Contractor in the installation, debugging, testing, and training the Government personnel in operation and maintenance of the Electrified Card Key System will be required. At the completion of the installation, the entire Electrified Card Key System shall be tested to assure that the entire system is operating satisfactory and reliably. The testing shall include but not limited to checking the operation of each individual lock, recoding and issuance of new card keys, and verifying reliable operation of the software and firmware. The Contractor shall submit to the Government a certificate to state that the entire electrified card key system has been tested and is operating satisfactory and reliably. The manufacturer's technical representative shall certified that the entire system has been installed in accordance with the manufacturer's instructions and recommendations, and is operating satisfactory and reliably The manufacturer's representative shall conduct a hands on training session of the Government personnel. The training session shall include but not limited to the operation and maintenance of the entire system, recoding and issuance of new card keys, simulation of system faults and resolving the faults. (i) Division 9, Section 09510, Part 2, Sub-paragraph 2.1.1, Acoustical Units: At the end of the paragraph, add the following: "Material used shall be asbestos free." (j) Division 9, Section 09900, Part 3, Sub-paragraph 3.2.3, Removal of Existing Coating: At the end of the paragraph, add the following: "HUD and EPA lead paint abatement requirements must be followed if lead containing paint is removed." (k) Division 15, Section 15185, Part 2, Sub-paragraph 2.1.7.10, Butterfly Valves: Delete this paragraph in its entirety.

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N62474-00-R-3035 Amendment 0006 Page 7 of 7 AMENDMENT 0006 (CONTINUED) (l) Division 15, Section 15720, Part 1, Sub-paragraph 1.2, General Requirements: 10th line, change "......acoustical/insulation line, ......" to "......acoustical/insulation liner, ............" (m) Division 15, Section 15901, Part 3, delete in their entirety, Sub-paragraphs 3.4.3, 3.4.4, and 3.4.5. (n) Division 16, Section 16402, Part 3, Sub-paragraph 3.2.5, Grounding System Test, add new paragraph 3.3, Working in Existing Electrical Room of Building 245 as follows: Prior to working inside the existing Electrical Room in Building 245, the Contractor shall thoroughly study the premise and the available record drawings, and plan his work. The Contractor shall submit a certificate to the Government to state that he is thoroughly studied the premise and the equipment installation, including the underground utilities; and the planned work can be conducted safely, and will not jeopardize the safety of his worker and the operation of Building 245." The certificate shall be submitted to the Government via the QC Manager. The QC Manager and the Electrical Engineer of Record (Contractor's Design Team) shall review the Contractor's work and safety plan for the work in the existing Electrical Room to satisfy himself that the work can be conducted safely without jeopardizing the safety of the work crew and the operation of Building 245. The QC Manager shall certify and concur with the Contractor's certification. This certificate shall be submitted to the Government for record ten days prior to start work in the existing Electrical Room. Prior to start work, the Contractor shall erect a dust barrier to separate the existing Main Switch Board to assure that construction dust and debris will not penetrate the dust barrier. The Contractor shall provide a fire and safety watch in the existing Electrical Room when work crew is working in the space. Unless permission is granted from the Contracting Officer, the Contractor's personnel is not permitted to operate any of the Government equipment. The Contractor shall notify the Contracting Officer fourteen days in advance prior to make the final connection from the existing electrical main switch board in Building 245. Prior to making the final connection, the Contractor shall verify the integrity of the new system to assure that the final connection (extending the service to the new extension) will not cause harm/damage to the existing Building 245 services." 5. All other terms and conditions of the solicitation remain unchanged.

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SECTION 02220

SITE DEMOLITION

PART 1 1.1

GENERAL REFERENCES

The Contractual Agreement, the Conditions of the Contract, and applicable portions of Division 1 and the Contract Drawings apply to the work of this Section as if printed herein. The publications are referred to in the text by the basic designations only. The sponsoring organizations of the publications are listed in Section 01420, "References." 1.2 GENERAL REQUIREMENTS

Do not begin demolition until authorization is received from the Contracting Officer. Remove rubbish and debris from the station daily ; do not allow accumulations inside or outside the building. Store materials that cannot be removed daily in areas within the construction site approved by the Contracting Officer. 1.3 1.3.1 DEFINITIONS Class I and Class II Ozone Depleting Substance (ODS)

Class I and Class II ODS are defined in Section, 602(a) and (b), of The Clean Air Act. 1.4 SUBMITTALS

Submit the following in accordance with Section 01332, "Submittals During Construction for Design Build." SD-07 Certificates Demolition plan Notifications Submit proposed salvage, demolition and removal procedures to the Contracting Officer for approval before work is started. SD-11 Closeout Submittals Receipts 1.5 REGULATORY AND SAFETY REQUIREMENTS

Comply with federal, state, and local hauling and disposal regulations. In addition to the requirements of the "Contract Clauses," safety requirements shall conform with ANSI A10.6. 1.5.1 Notifications

SECTION 02220

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Notify the Contracting Officer, and the local air pollution control district/agency where required, in writing 10 working days prior to the commencement of work in accordance with 40 CFR 61-SUBPART M. 1.5.2 Receipts

Submit a shipping receipt or bill of lading for all containers of ozone depleting substance (ODS) shipped to the Defense Depot, Richmond, Virginia. 1.6 DUST AND DEBRIS CONTROL

Prevent the spread of dust and debris to occupied portions of the building and avoid the creation of a nuisance or hazard in the surrounding area. Do not use water if it results in hazardous or objectionable conditions such as, but not limited to, ice, flooding, or pollution. Vacuum the work area daily. 1.7 1.7.1 PROTECTION Traffic Control Signs

Where pedestrian and driver safety is endangered in the area of removal work, use traffic barricades with flashing lights. Notify the Contracting Officer prior to beginning such work. 1.7.2 Existing Work

Protect existing work which is to remain in place, be reused, or remain the property of the Government. Repair items which are to remain which are to be salvaged and which are damaged during performance of the work to their original condition, or replace with new. Do not overload structural elements,w supports and reinforcement for existing construction weakened by demolition or removal work. Repairs, reinforcement, or structural replacement must have Contracting Officer approval. 1.7.3 Weather Protection

For portions of the building to remain, protect building interior and materials and equipment from the weather at all times. Where removal of existing roofing is necessary to accomplish work, have materials and workmen ready to provide adequate and temporary covering of exposed areas so as to ensure effectiveness and to prevent displacement. 1.7.4 Trees

Conform to Section 01575, "Temporary Environmental Controls," for protection of natural resources. 1.7.5 Facilities

Protect electrical and mechanical services and utilities. Where removal of existing utilities and pavement is specified or indicated, provide approved barricades, temporary covering of exposed areas, and temporary services or connections for electrical and mechanical utilities. Where open trenches are exposed during non-working hours they shall be covered with steel plates adequate for vehicular traffic in areas designed for automotive use, and steel plate of thickness as required by the span of the opening at pedestrian areas.

SECTION 02220

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1.8

BURNING

Burning will not be permitted. 1.9 RELOCATIONS

Perform the removal and reinstallation of relocated items as indicated with workmen skilled in the trades involved. Repair items to be relocated which are damaged or replace damaged items with new undamaged items as approved by the Contracting Officer. 1.10 Required Data

Demolition plan shall include procedures for careful removal and disposition of materials specified to be salvaged, coordination with other work in progress, a disconnection schedule of utility services, a detailed description of methods and equipment to be used for each operation and of the sequence of operations. 1.11 Required Data

Demolition plan shall include procedures for careful removal and disposition of materials specified to be salvaged, coordination with other work in progress, a disconnection schedule of utility services, a detailed description of methods and equipment to be used for each operation and of the sequence of operations. PART 2 PRODUCTS

Not used. PART 3 3.1 3.1.1 EXECUTION EXISTING FACILITIES TO BE REMOVED Structures

Remove indicated existing structures, including below grade structures. 3.1.2 Utilities and Related Equipment

Remove existing utilities , as indicated and terminate in a manner conforming to the nationally recognized code covering the specific utility and approved by the Contracting Officer. Remove meters and related equipment and deliver to a location on the station in accordance with instructions of the Contracting Officer. If utility lines are encountered that are not shown on drawings, contact the Contracting Officer for further instructions. 3.1.3 Paving and Slabs

Remove scarified and sawn concrete and asphaltic concrete paving and slabs including aggregate base to a depth of 8 inches below existing adjacent grade. Provide neat sawcuts at limits of pavement removal as indicated. 3.1.4 Masonry

Sawcut and remove masonry so as to prevent damage to surfaces to remain and to facilitate the installation of new work. Where new masonry adjoins SECTION 02220 Page 3

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existing, the new work shall abut or tie into the existing construction as indicated. 3.1.5 Concrete

Saw concrete along straight lines to a depth of not less than 2 inches. Make each cut in walls perpendicular to the face and in alignment with the cut in the opposite face. Break out the remainder of the concrete provided that the broken area is concealed in the finished work, and the remaining concrete is sound. At locations where the broken face cannot be concealed, grind smooth or saw cut entirely through the concrete. 3.1.6 Patching

Where removals leave holes and damaged surfaces exposed in the finished work, patch and repair these holes and damaged surfaces to match adjacent finished surfaces. Where new work is to be applied to existing surfaces, perform removals and patching in a manner to produce surfaces suitable for receiving new work. Finished surfaces of patched area shall be flush with the adjacent existing surface and shall match the existing adjacent surface as closely as possible as to texture and finish. Patching shall be as specified and indicated, and shall include: a. Holes and depressions caused by previous physical damage or left as a result of removals in existing masonry walls to remain shall be completely filled with an approved masonry patching material, applied in accordance with the manufacturer's printed instructions. Where existing partitions have been removed leaving damaged or missing resilient tile flooring, patch to match the existing floor tile. Patch acoustic lay-in ceiling where partitions have been removed. The transition between the different ceiling heights shall be effected by continuing the higher ceiling level over to the first runner on the lower ceiling and closing the vertical opening with a painted sheet metal strip.

b.

c.

3.2 3.2.1

DISPOSITION OF MATERIAL Title to Materials

Except where specified in other sections, all materials and equipment removed, and not reused, shall become the property of the Contractor and shall be removed from Government property. Title to materials resulting from demolition, and materials and equipment to be removed, is vested in the Contractor upon approval by the Contracting Officer of the Contractor's demolition and removal procedures, and authorization by the Contracting Officer to begin demolition. The Government will not be responsible for the condition or loss of, or damage to, such property after contract award. Materials and equipment shall not be viewed by prospective purchasers or sold on the site. 3.2.2 Reuse of Materials and Equipment

Remove and store materials and equipment indicated to be reused or relocated to prevent damage, and reinstall as the work progresses. 3.2.3 Salvaged Materials and Equipment SECTION 02220 Page 4

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Remove materials and equipment that are indicated to be removed by the Contractor and that are to remain the property of the Government, and deliver to a storage site , as directed within 3 miles of the work site. 3.3 3.3.1 CLEANUP Debris and Rubbish

Remove and transport debris and rubbish daily, or more frequently as required, in a manner that will prevent spillage on pavements, streets or adjacent areas. Limit to 3/8 cubic yard capacity buggies or other conveyances used on roofs and within the building to transport removed debris. Clean up spillage from pavements, streets and adjacent areas . -- End of Section --

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SECTION 02231

CLEARING AND GRUBBING

PART 1 1.1

GENERAL REFERENCES

The Contractual Agreement, the Conditions of the Contract, and applicable portions of Division 1 and the Contract Drawings apply to the work of this Section as if printed herein. The publications are referred to in the text by the basic designations only. The sponsoring organizations of the publications are listed in Section 01420, "References."

1.2

SUBMITTALS

Submit the following in accordance with Section 01332, "Submittals During Construction for Design Build." SD-04 Samples Tree wound paint Herbicide Submit samples in cans with manufacturer's label. 1.3 DELIVERY, STORAGE, AND HANDLING

Deliver materials to, store at the site, and handle in a manner which will maintain the materials in their original manufactured or fabricated condition until ready for use. PART 2 2.1 PRODUCTS TREE WOUND PAINT

Bituminous based paint of standard manufacture specially formulated for tree wounds. 2.2 HERBICIDE

Comply with Federal Insecticide, Fungicide, and Rodenticide Act (Title 7 U.S.C. Section 136) for requirements on contractor's licensing, certification and record keeping. Contact the command Pest Control Coordinator prior to starting work. PART 3 3.1 3.1.1 EXECUTION PROTECTION Roads and Walks

Keep roads and walks free of dirt and debris at all times. SECTION 02231 Page 1

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3.1.2

Trees, Shrubs, and Existing Facilities

Protection shall be in accordance with Section 01575, "Temporary Environmental Controls." 3.1.3 Utility Lines

Protect existing utility lines that are indicated to remain from damage. Notify the Contracting Officer immediately of damage to or an encounter with an unknown existing utility line. The Contractor shall be responsible for the repairs of damage to existing utility lines that are indicated or made known to the Contractor prior to start of clearing and grubbing operations. When utility lines which are to be removed are encountered within the area of operations, the Contractor shall notify the Contracting Officer in ample time to minimize interruption of the service. Refer to Section 01310, "Administrative Requirements," and Section 01575, "Temporary Environmental Controls," for additional utility protection. 3.2 CLEARING

Shall consist of the felling, trimming, and cutting of trees into sections and the satisfactory disposal of the trees and other vegetation designated for removal, including downed timber, snags, brush, and rubbish occurring within the areas to be cleared. Cut off flush with or below the original ground surface trees, stumps, roots, brush, and other vegetation in areas to be cleared, except for trees and vegetation indicated or directed to be left standing. Apply herbicide in accordance with the manufacturer's label to the top surface of stumps designated not to be removed. 3.3 TREE REMOVAL

Where indicated, remove designated trees and stumps and grub roots. 3.4 PRUNING

Prune individual trees as indicated. Trim trees designated to be left standing within the cleared areas of dead branches 1 1/2 inches or more in diameter; and trim branches to heights and in a manner as indicated. Neatly cut limbs and branches to be trimmed close to the bole of the tree or main branches. Paint cuts more than 1 1/4 inches in diameter with an approved tree wound paint. 3.5 GRUBBING

Remove and dispose of roots larger than 3 inches in diameter, matted roots, and designated stumps from the indicated grubbing areas. Excavate this material together with logs, organic and metallic debris, brush, and refuse and remove to a depth of not less than 18 inches below the original soil surface in areas indicated to be grubbed and in areas indicated as construction areas under this contract. Fill depressions made by grubbing with suitable material and compact in accordance with the requirements specified in Section 02301, "Earthwork for Structures and Pavements," to make the new surface conform with the existing adjacent surface of the ground. 3.6 3.6.1 DISPOSAL OF CLEARED AND GRUBBED MATERIALS Nonsaleable Materials SECTION 02231 Page 2

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Remove from the project site and dispose of off station. -- End of Section --

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SECTION 02301

EARTHWORK FOR STRUCTURES AND PAVEMENTS

PART 1 1.1

GENERAL REFERENCES

The Contractual Agreement, the Conditions of the Contract, and applicable portions of Division 1 and the Contract Drawings apply to the work of this Section as if printed herein. The publications are referred to in the text by the basic designations only. The sponsoring organizations of the publications are listed in Section 01420, "References." 1.2 1.2.1 DEFINITIONS Backfill

A specified material used in refilling a cut, trench, or other excavation, placed at a specified degree of compaction. 1.2.2 Capillary Water Barrier

A layer of clean, poorly graded crushed rock, stone, or natural sand or gravel having a high porosity which is placed beneath a building slab with or without a vapor barrier to cut off the capillary flow of pore water to the area immediately below a slab. 1.2.3 Cohesive Materials

Cohesive materials include materials classified by ASTM D 2487 as GC, SC, ML, CL, MH, and CH. Materials classified as GM and SM will be identified as cohesive only when the fines have a plasticity index greater than zero. 1.2.4 Cohesionless Materials

Cohesionless materials include materials classified by ASTM D 2487as GW, GP, SW, and SP. Materials classified as GM and SM will be identified as cohesionless only when the fines have a plasticity index of zero. 1.2.5 Compaction

The process of mechanically stabilizing a material by increasing its density at a controlled moisture condition. "Degree of Compaction" is expressed as a percentage of the maximum density obtained by the test procedure described in ASTM D 1557 for general soil types or ASTM D 4253 and ASTM D 4254 (Relative Density) for isolated cohesionless materials, abbreviated in this specification as "95 percent ASTM D 1557 maximum density." 1.2.6 Controlled Fill and Controlled Backfill

A specified soil mix or gradation of materials constructed to attain maximum bearing strength and minimize consolidation or differential settlement under a load. Controlled fill is sometimes called "structural SECTION 02301 Page 1

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fill." 1.2.7 Embankment

A "fill" having a top that is higher than adjoining ground. 1.2.8 Excavation

The removal of soil, rock, or hard material to obtain a specified depth or elevation. 1.2.9 Fill

Specified material placed at a specified degree of compaction to obtain an indicated grade or elevation. 1.2.10 Hard Material

Weathered rock, dense consolidated deposits or conglomerate materials, (excluding manmade materials such as concrete) which are not included in the definition of "rock" but which usually require the use of heavy excavation equipment with ripper teeth or the use of jack hammers for removal. Material indicated in the soil boring logs as having a standard penetration resistance as determined by ASTM D 1586 between 60 and 600 blows per foot is arbitrarily defined herein as "Hard Material." 1.2.11 In Situ Soil

Existing in place soil. 1.2.12 Lift

A layer (or course) of soil placed on top of a previously prepared or placed soil. 1.2.13 Rock

Solid, homogeneous, interlocking crystalline material with firmly cemented, laminated, or foliated masses or conglomerate deposits, neither of which can be removed without systematic drilling and blasting, drilling and the use of expansion jacks or feather wedges, or the use of backhoe-mounted pneumatic hole punchers or rock breakers; also large boulders, buried masonry, or concrete other than pavement, exceeding 1/2 cubic yard in volume. Material indicated in the soil boring logs as having a standard penetration resistance as determined by ASTM D 1586 greater than 600 blows per foot is arbitrarily defined herein as "Rock." Removal of "hard material" will not be considered rock excavation because of intermittent drilling and blasting that is performed merely to increase production. 1.2.14 Soil

The surface material of the earth's crust resulting from the chemical and mechanical weathering of rock and organic material. 1.2.15 Subgrade

The material in excavation, cuts and fills immediately below any subbase, base, pavement, or other improvement. Also, as a secondary definition, the level below which work above is referenced. SECTION 02301 Page 2

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1.2.16

Topsoil

In natural or undisturbed soil formations, the fine-grained, weathered material on the surface or directly below any loose or partially decomposed organic matter. Topsoil may be a dark-colored, fine, silty, or sandy material with a high content of well decomposed organic matter, often containing traces of the parent rock material. Gradation and material requirements specified herein apply to all topsoil references in this contract. The material shall be representative of productive soils in the vicinity. 1.2.17 Unsatisfactory Material

Existing, in situ soil or other material which can be identified as having insufficient strength characteristics or stability to carry intended loads in fill or embankment without excessive consolidation or loss of stability. Materials classified as PT, OH, or OL by ASTM D 2487 are unsatisfactory. Unsatisfactory materials also include man-made fills, refuse, frozen material, uncompacted backfills from previous construction, unsound rock or soil lenses, or other deleterious or objectionable material. 1.2.18 Working Platform

A layer of compacted crushed rock or natural stone that replaces the in situ soil to provide a stable, uniform bearing foundation for construction equipment to facilitate further site construction. 1.3 SUBMITTALS

Submit the following in accordance with Section 01332, "Submittals During Construction for Design Build." SD-06 Test Reports Controlled fill and Controlled backfill material tests Backfill tests Granular fill tests 1.4 DELIVERY AND STORAGE

Deliver and store materials in a manner to prevent contamination or segregation. 1.5 1.5.1 SITE CONDITIONS Utilities

Contact the Contracting Officer 72 hours prior to construction for the location of all existing underground utilities . Movement of construction machinery and equipment over pipes and utilities during construction shall be at the Contractor's risk. Contact the utility companies for location(s) of their utilities. Perform work adjacent to privately owned utilities in accordance with procedures outlined by the utility company. Report damage to utility lines or subsurface construction immediately to the Contracting Officer.

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1.6 PART 2 2.1 2.1.1

QUALITY ASSURANCE PRODUCTS MATERIALS Granular Fill Capillary Water Barrier

2.1.1.1

Provide a capillary water barrier under concrete floor slabs consisting of clean crushed stone, crushed gravel, or uncrushed gravel conforming to ASTM C 33 coarse aggregate grading size 57, 67, or 7. 2.1.2 Soil Materials

Provide materials free from debris, roots, wood, scrap materials, vegetable matter, refuse or frozen material. Maximum particle size permitted is 3 inches. Use excavated material from the site for the work indicated when material falls within the requirements specified herein. 2.1.2.1 Controlled Fill and Controlled Backfill

Provide materials classified as GW, GP, SP by ASTM D-2487 where indicated. 2.1.2.2 General Backfill Beside Structures

Soft, spongy, highly plastic, or otherwise unstable material is prohibited. Material shall be classified as GP or GM, by ASTM D 2487. If more material is required than is available from on-site excavation, then provide that material from approved sources. 2.1.2.3 General Site Fill, Backfill and Embankment Material

Provide a soil material from the site that can be readily compacted to the specified densities. Materials shall be unclassified. 2.1.2.4 Working Platform

Material and thicknesses of working platform for support of construction equipment shall be at the discretion of the construction contractor. The gradation and placement of such material shall not create large void spaces upon which overlying work is indicated to be placed. 2.1.2.5 Topsoil

Provide salvaged topsoil from stockpile. Prior to spreading, test the topsoil, and add the necessary soil modifiers to bring the material within acceptable ranges. PART 3 3.1 3.1.1 EXECUTION PROTECTION Protection and Restoration of Surfaces

Protect newly graded areas from traffic, erosion, and settlements. Repair and reestablish damaged or eroded slopes, elevations or grades and restore surface construction prior to acceptance. Conduct work in accordance with SECTION 02301 Page 4

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requirements specified in Section 01575, "Temporary Environmental Controls." 3.1.1.1 Disposal of Excavated Material

Dispose of excavated material in such a manner that it will not obstruct the flow of runoff, streams, endanger a partly finished structure, impair the efficiency or appearance of facilities, or be detrimental to the completed work. 3.2 3.2.1 SURFACE PREPARATION Clearing and Grubbing

Perform as specified in Section 02231, "Clearing and Grubbing." 3.2.2 Stockpiling Topsoil

Strip approved topsoil to a depth of 4 inches from the site where excavation or grading is indicated and stockpile separately from other excavated material. Locate topsoil so that the material can be used readily for the finished grading. Protect and store in segregated piles until needed. 3.2.3 Unsatisfactory Material

Remove organic matter, sod, muck, rubbish, and unsuitable soil] under embankments which are less than 3 feet in thickness and under pavements or slabs on grade. Typical depth of removal of such unsuitable material shall be 1.5 inches. 3.3 EXCAVATION

Excavate to contours and dimensions indicated. Keep excavations free from water while construction is in progress. Notify the Contracting Officer immediately in writing in the event that it becomes necessary to remove rock, hard material, or other material defined as unsatisfactory to a depth greater than indicated and an adjustment in contract price will be considered in accordance with the Contract clause entitled "Differing Site Conditions." Refill excavations cut below the depths indicated with controlled fill and compact as specified herein. Excavate soil disturbed or weakened by construction operations or soils soften from exposure to weather. Refill with controlled fill and compact as specified herein. 3.3.1 Excavations for Structures and Spread Footings

Excavate to depth indicated. If excavation is deeper than indicated, then fill with concrete when the foundations or footings are placed. Excavations for foundations may not begin until 2 weeks after completion of the indicated filling operation. 3.4 3.4.1 FILLING AND BACKFILLING Subgrade Preparation

Scarify the underlying subgrade surface to a depth of 6 inches before the fill is started. Step, bench, or break up sloped surfaces steeper than one vertical to 4 horizontal so that the fill material will bond with or be securely keyed to the existing material. Scarify existing surface to a minimum depth of 6 inches if subgrade density is less than the degree of SECTION 02301 Page 5

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compaction specified and recompact. When the subgrade is part fill and part excavation or natural ground, scarify the excavated or natural ground portion to a depth of 12 inches and recompact as specified for the adjacent or overlying fill. Compact with equipment well suited to the soil being compacted. Moisten or aerate material as necessary to provide the moisture content that will readily facilitate obtaining the specified compaction with the equipment used. 3.4.2 Fill and Backfill Beside Structures

Place required backfill material adjacent to structures and compact in a manner that prevents wedging action or eccentric loading upon or against the structures. Step or serrate slopes bounding or within areas to be backfilled to prevent sliding of the fill. Moisten or aerate material as necessary to provide the moisture content that will readily facilitate obtaining the specified compaction with the equipment used. Do not place material on surfaces that are muddy, frozen, or contain frost. Do not use equipment for backfilling operations or for the formation of embankments against structures that will overload the structure. Backfilling against concrete will be done only after approval has been obtained from the Contracting Officer. 3.4.3 Controlled Fill and Controlled Backfill

Place controlled fill and controlled backfill under pavements in loose lifts of 8 inches. Do not place material on surfaces that are muddy, frozen, or contain frost. Compact with equipment well suited to the soil being compacted. Moisten or aerate material as necessary to provide the moisture content that will readily facilitate obtaining the specified compaction with the equipment used. Compact each lift as specified herein before placing the overlaying lift. Compaction shall be accomplished continuously over the entire area. Sufficient passes shall be made to ensure that specified density is obtained. 3.4.4 General Backfill

Construct backfill at the locations and to lines and grades indicated. Use only approved materials in constructing fill on the prepared subgrade. Place satisfactory material in horizontal lifts not exceeding 8 inches in loose depth. Do not place material on surfaces that are muddy, frozen, or contain frost. Compact with equipment well suited to the soil being compacted. Moisten or aerate material as necessary to provide the moisture content that will readily facilitate obtaining the specified compaction with the equipment used. Compact each lift as specified before placing the overlaying lift. 3.4.5 Final Backfill for Utilities

Construct backfill (final backfill) for storm drains, manholes, utility lines, and other utility appurtenances using the material and compaction requirements specified herein for the adjacent or overlying work. Bedding and initial backfill requirements are specified in Section 02302, "Excavation, Backfilling, and Compacting for Utilities." Backfilling against concrete will be done only after approval has been obtained from the Contracting Officer. 3.4.6 Weather Limitations

Fill and backfill shall not be constructed when weather conditions SECTION 02301 Page 6

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detrimentally affect the quality of the finished course. Place fill and backfill only if the atmospheric temperature is above freezing in the shade and is rising. Do not construct fill and backfill in the rain or on saturated subgrades. If weather conditions are windy, hot or arid, with high rate of evaporation, schedule the placement in cooler portions of the day and furnish equipment to add moisture to the fill or backfill during and after placement. 3.5 COMPACTION

Compact each layer or lift of material specified so that the in-place density tested is not less than the percentage of maximum density allowed by the soils report. TABLE III Percent ASTM D 1557 ASTM D 2922 Maximum Density Cohesive Material Fill, Embankment and Backfill General Fill under steps and parking lots General Fill under sidewalks and grassed areas Backfill beside structures Controlled fill and under footings, pavements and structures Under Roadways, top 12 inches] Subgrade (Top of fill, backfill or cut) Under building slabs, steps and parking lots Under sidewalks, and grass areas 3.6 3.6.1 FINISH OPERATIONS Site Grading 93 98 90 95 Cohesionless Material

85

90

90 95

95 100

95

100

85

90

Grade to finished grades indicated within 0.10 foot. Grade areas to drain water away from structures . Existing grades which are to remain but are disturbed by the Contractor's operations shall be restored. 3.6.2 Finishing Subgrades Under Structures and Pavements

Finish surface of top lift of fill or top of subgrade to the elevation and cross section indicated. Finished surface shall be smooth and of uniform texture. Lightly scarify or blade the finished surface to bring the SECTION 02301 Page 7

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finished surface to within 0.05 foot of the indicated grade and to eliminate imprints made by compaction and shaping equipment. Surface shall show no deviations in excess of 3/8 inch when tested with a 10 foot straightedge. 3.6.3 Spreading Topsoil

Clear areas indicated or specified to receive topsoil of materials interfering with planting and maintenance operations. Do not place topsoil when subgrade is frozen, extremely wet or dry, or in other conditions detrimental to seeding, planting, or grading. Spread topsoil to a uniform depth of 4 inches over the designated area. 3.6.4 Protection of Surfaces

Protect newly graded areas from traffic, erosion, and settlements that may occur and as required in the Section 01575, "Temporary Environmental Controls" and as specified in the paragraph entitled "Protection and Restoration of Surfaces." Repair or reestablish damaged grades, elevations, or slopes prior to acceptance of work. 3.7 3.7.1 FIELD QUALITY CONTROL Sampling

Furnish one 50 pound composite sample taken at random times daily being compacted and fill material being placed. Submit samples, in the number directed, whenever the source or character of the fill, backfill, or embankment material changes. Contain each sample in a clean container and fasten to prevent loss of material. Tag each sample for identification. Tag shall contain the following information: Contract No. ____________________ Sample No. ______________________ Date of Sample _________________ Sampler ________________________ Source _________________________ Intended Use ___________________ 3.7.2 Tests

Test backfill and granular fill using ASTM C 136 for conformance to ASTM C 33, and ASTM D 2487 gradation limits. Test backfill for material finer than the No. 200 sieve using ASTM D 1140. Test backfill and subgrade in cut materials for moisture density relations using ASTM D 1557. Test backfill for permeability in accordance with ASTM D 2434. Perform one of each of the required tests for each material used when directed. Provide additional tests as specified above for each source change. Perform density tests in randomly selected locations using ASTM D 1556 or ASTM D 2922 as follows: one test per 5,000 square feet in each layer of lift placed. Determine moisture content of soil material in place at every location where in-place density is tested. Where ASTM D 2922 is used to test field compaction densities, verify the results of the tests by performing at least one test per day using ASTM D 1556 at a location already tested by ASTM D 2922 and at least one additional test using ASTM D 1556 for every 10 tests performed with a nuclear device, also at locations already checked by ASTM D 2922.

SECTION 02301

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3.7.3

Controlled Fill

Method of in-place density tests shall be in accordance with paragraph entitled "Tests." Acceptance of the compacted material shall be determined in each location by the results of a minimum of two consecutive tests. The average of two tests shall equal or exceed the specified density. The location of the tests for each compacted layer will be randomly selected by the Contracting Officer. 3.7.3 Locations

The location of field density tests on the established grid for the unit of fill being tested will be selected by the Contracting Officer using a table of random numbers similar to the Asphalt Institute Publication, Appendix B, Manual Series No. 10 (AI MS-10). 3.7.4 Acceptance

Acceptance of the compacted materials shall be determined in each unit by the results of a series of three consecutive field in-place density tests. Method of in-place tests shall be in accordance with paragraph "Tests." The average of three tests shall equal or exceed the specified average density requirement. Fill shall be accepted or rejected by units with a complete unit being reworked in the event of rejection. A unit shall consist of 500 cubic yards of fill or 20 percent percent of the total fill quantity, whichever is less and have a minimum of 2 feet of fill.

-- End of Section --

SECTION 02301

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SECTION 02302

EXCAVATION, BACKFILLING, AND COMPACTING FOR UTILITIES

PART 1 1.1

GENERAL REFERENCES

The Contractual Agreement, the Conditions of the Contract, and applicable portions of Division 1 and the Contract Drawings apply to the work of this Section as if printed herein. The publications are referred to in the text by the basic designations only. The sponsoring organizations of the publications are listed in Section 01420, "References." 1.2 1.2.1 DEFINITIONS Backfill

Material used in refilling a cut, trench or other excavation. 1.2.2 Cohesive Materials

Soils classified by ASTM D 2487 as GC, SC, ML, CL, MH, and CH. Materials classified as GM and SM will be identified as cohesive only when fines have a plasticity index greater than zero. 1.2.3 Cohesionless Materials

Soils classified by ASTM D 2487 as GW, GP, SW, and SP. Materials classified as GM and SM will be identified as cohesionless only when the fines have a plasticity index of zero. 1.2.4 Compaction

The process of mechanically stabilizing a material by increasing its density at a controlled moisture condition. "Degree of Compaction" is expressed as a percentage of the maximum density obtained by the test procedure described in ASTM D 1557 for general soil types, abbreviated in this specification as "95 percent ASTM D 1557 maximum density." 1.2.5 Granular Pipe Bedding

A dense, well-graded aggregate mixture of sand, gravel, or crushed stone (mixed individually, in combination with each other, or with suitable binder soil) placed on a subgrade to provide a suitable foundation for pipe. Granular bedding material may also consist of poorly graded sands or gravels where fast draining soil characteristics are desired. 1.2.6 In-Situ Soil

Existing in place soil. 1.2.7 Lift SECTION 02302 Page 1

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A layer (or course) of soil placed on top of subgrade or a previously prepared or placed soil in a fill or backfill. 1.2.8 Topsoil

In natural or undisturbed soil formations, the fine-grained, weathered material on the surface or directly below any loose or partially decomposed organic matter. Topsoil may be a dark-colored, fine, silty, or sandy material with a high content of well decomposed organic matter, often containing traces of the parent rock material. 1.2.9 Unsatisfactory Material

In-Situ soil or other material which can be identified as having insufficient strength characteristics or stability to carry intended loads in the trench without excessive consolidation or loss of stability. Also backfill material which contains refuse, frozen material, large rocks, debris, soluble particles, and other material which could damage the pipe or cause the backfill not to compact. Materials classified as PT, OH, or OL by ASTM D 2487 are unsatisfactory. 1.2.10 Unstable Material

Material in the trench bottom which lacks firmness to maintain alignment and prevent joints from separating in the pipe, conduit, or appurtenance structure during backfilling. This may be material otherwise identified as satisfactory which has been disturbed or saturated. 1.3 SUBMITTALS

Submit the following in accordance with Section 01332, "Submittals During Construction for Design Build." SD-06 Test Reports Concrete tests Trench backfill material tests Pipe bedding material tests Test for moisture-density relation Density and moisture tests 1.3 DELIVERY, STORAGE, AND HANDLING

Deliver and store materials in a manner to prevent contamination, segregation, freezing, and other damage. 1.4 1.4.1 PROTECTION Utilities

Movement of construction machinery and equipment over pipes and utilities during construction shall be at the Contractor's risk. Perform work adjacent to non-Government utilities as indicated in accordance with procedures outlined by utility company. Report damage to utility lines or SECTION 02302 Page 2

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subsurface construction immediately to the Contracting Officer. 1.6 1.5 QUALITY ASSURANCE Test for moisture-density relation

Submit 7 days prior to commencing utility excavation. 1.6.2 Density and moisture tests

Submit field test data not listed above sufficiently in advance of construction so as not to delay work. Submit within 14 days of test date. PART 2 2.1 PRODUCTS SOIL MATERIALS

Provide soil materials as specified below free of debris, roots, wood, scrap material, vegetable matter, refuse, soft unsound particles, ice, or other deleterious and objectionable materials. 2.1.1 Backfill

Bring trenches to grade indicated on the drawings using material classified as GM or SM by ASTM D 2487 with a maximum particle size of 1.5 inches. 2.1.2 Special Backfill for Structures and Pavements

Backfill trenches under roads, structures, and paved areas as specified in Section 02301, "Earthwork for Structures and Pavements." 2.1.3 Gravel

Clean, coarsely graded natural gravel, crushed stone or a combination thereof having a classification of GW or GP in accordance with ASTM D 2487 for bedding and backfill. Maximum particle size shall not exceed 1.5 inches. 2.1.4 Topsoil Material

Salvaged topsoil from stockpile. Prior to spreading, test topsoil, and add necessary soil modifiers to bring material within acceptable range. Furnish additional topsoil from approved sources off the site. 2.1.5 Pipe Bedding TABLE 02302-1 PIPE MATERIALS a. Vitrified Clay Pipe UTILITY EARTHWORK REFERENCES SOIL MATERIALS REFERENCE ASTM C 12 except Class B, gravel bedding installed as indicated, Class C, GW or SW as approved. NEMA TC 2 , 3000 psi, SECTION 02302 Page 3 INSTALLATION REF ASTM C 12

NAVY SPECIFICATION 02630 02530

b.

Concrete Encased Electrical

16302

Section 16302

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TABLE 02302-1 PIPE MATERIALS Plastic Tubing (EPT) and Conduit c.

UTILITY EARTHWORK REFERENCES SOIL MATERIALS REFERENCE Concrete, one inch max aggregate size INSTALLATION REF

NAVY SPECIFICATION

Concrete 02630 Gravity, Sewer, 02530 Culvert

ACPA 01-103 ASTM C 76 (Reinforced)

ASTM C 14

d.

Metallic Water 02510 Service Line Pipe (Steel, Copper Tube, Brass) Polyethylene (PE) Pressure Pipe 02811 02551

AWWA C600

Same

e.

ASTM D 2774, except bedding shall be GW or SW and all material surrounding the pipe shall have maximum particle size of 1/2 inch. ASTM D 2321, except bedding shall be Class I, gravel or Class II. Haunching to springline shall be Class I, gravel or Class II. ASTM D 2774, except bedding shall be GW or SW and all material surrounding pipe shall have maximum particle size of 1/2 inch. NEMA TC 6 NFPA 30 NFPA 70

ASTM D 2774

f.

Polyvinyl 02630 Chloride (PVC) 02530 Nonpressure Pipe 15400

ASTM D 2321 AWWA M23

g.

Polyvinyl Chloride (PVC) Pressure Pipe

02811 02510

ASTM D 2774

h.

PVC and ABS Plastic Utilities Duct Rigid Metallic Conduit (Electrical)

16302

Section 16302

i.

16302

Section 16302 NFPA 70, Articles 300-6 NFPA 70, Articles 710-3 and SECTION 02302 Page 4

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TABLE 02302-1 PIPE MATERIALS

UTILITY EARTHWORK REFERENCES SOIL MATERIALS REFERENCE INSTALLATION REF 300-5 ASME B31.8 AWWA M11 AWWA M11

NAVY SPECIFICATION

j. k.

Steel Gas Piping

02551

Ductile Iron Pipe 02510 Water Main Underground Heat 02553 Distribution Systems (PreFabricated or Pre-Engineered Types)

l.

Provide bedding and backfill material in accordance with system manufacturer's recommendations as approved in paragraph titles "Submittals." Provide Class I, gravel or Class II bedding. Haunching to springline shall be Class I or Class II. Place as indicated.

Section 02553

2.2

BURIED WARNING AND IDENTIFICATION TAPE

Polyethylene plastic and metallic core or metallic-faced, acid- and alkali-resistant, polyethylene plastic warning tape manufactured specifically for warning and identification of buried utility lines. Provide tape on rolls, 3 inch minimum width, color coded as specified below for the intended utility with warning and identification imprinted in bold black letters continuously over the entire tape length. Warning and identification to read, "CAUTION, BURIED (intended service) LINE BELOW" or similar wording. Color and printing shall be permanent, unaffected by moisture or soil. Warning Tape Color Codes Yellow: Yellow: Orange: Blue: Green: White: Gray: 2.2.1 Electric Gas, Oil, Dangerous Materials Telephone and Other Communications Water Systems Sewer Systems Steam Systems Compressed Air

Warning Tape for Metallic Piping

Acid and alkali-resistant polyethylene plastic tape conforming to the width, color, and printing requirements specified above. Minimum thickness of tape shall be 0.003 inch. Tape shall have a minimum strength of 1500 psi lengthwise, and 1250 psi crosswise, with a maximum 350 percent elongation. 2.2.2 Detectable Warning Tape for Non-Metallic Piping

SECTION 02302

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Polyethylene plastic tape conforming to the width, color, and printing requirements specified above. Minimum thickness of the tape shall be 0.004 inch. Tape shall have a minimum strength of 1500 psi lengthwise and 1250 psi crosswise. Tape shall be manufactured with integral wires, foil backing, or other means of enabling detection by a metal detector when tape is buried up to 3 feet deep. Encase metallic element of the tape in a protective jacket or provide with other means of corrosion protection. 2.3 DETECTION WIRE FOR NON-METALLIC PIPING

Detection wire shall be insulated single strand, solid copper with a minimum diameter of 12 AWG. PART 3 3.1 3.1.1 EXECUTION PROTECTION Underground Utilities

Location of the existing utilities indicated is approximate. The Contractor shall physically verify the location and elevation of the existing utilities indicated prior to starting construction. The Contractor shall contact the Public Works Department for assistance in locating existing utilities. 3.1.2 Structures and Surfaces

Protect newly backfilled areas and adjacent structures, slopes, or grades from traffic, erosion settlement, or any other damage. Repair and reestablish damaged or eroded grades and slopes and restore surface construction prior to acceptance. Protect existing ditches, and storm drain inlets from water-borne soil by means of filter fabric dams as indicated on the contract drawings. Perform work in accordance with requirements specified in Section 01575, "Temporary Environmental Controls." 3.1.2.1 Disposal of Excavated Material

Dispose of excavated material so that it will not obstruct the flow of runoff, streams, endanger a partly finished structure, impair the efficiency or appearance of any facilities, or be detrimental to the completed work. 3.2 3.2.1 SURFACE PREPARATION Stockpiling Topsoil

Strip suitable soil from the site where excavation or grading is indicated and stockpile separately from other excavated material. Material unsuitable for use as topsoil shall be wasted. Locate topsoil so that the material can be used readily for the finished grading. Where sufficient existing topsoil conforming to the material requirements is not available on site, provide borrow materials suitable for use as topsoil. Protect topsoil and keep in segregated piles until needed. 3.2.2 Cutting Pavement, Curbs, and Gutters

Saw cut with neat, parallel, straight lines one foot wider than trench width on each side of trenches and one foot beyond each edge of pits. When the saw cut is within 3 feet of an existing joint, remove pavement to the SECTION 02302 Page 6

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existing joint. 3.3 GENERAL EXCAVATION AND TRENCHING

Keep excavations free from water while construction is in progress. Notify the Contracting Officer immediately in writing if it becomes necessary to remove rock or hard, unstable, or otherwise unsatisfactory material to a depth greater than indicated. Make trench sides as nearly vertical as practicable except where sloping of sides is allowed. Sides of trenches shall not be sloped from the bottom of the trench up to the elevation of the top of the pipe, conduit or duct. Excavate ledge rock, boulders, and other unyielding material to an overdepth at least 6 inches below the bottom of the pipe, conduit or duct and appurtenances unless otherwise indicated or specified. Blasting will not be permitted. Over excavate soft, weak, or wet excavation. Use bedding material, gravel or sand placed in 6 inch maximum layers to refill overdepths to the proper grade. At the Contractor's option, the excavations may be cut to an overdepth of not less than 4 inches and refilled to required grade as specified. Grade bottom of trenches accurately to provide uniform bearing and support for each section of pipe, conduit or duct structure on undisturbed soil, or bedding material as indicated or specified at every point along its entire length except for portions where it is necessary to excavate for bell holes and for making proper joints. Dig bell holes and depressions for joints after trench has been graded. Dimension of bell holes shall be as required for properly making the particular type of joint to ensure that the bell does not bear on the bottom of the excavation. 3.4 BEDDING

Of materials and depths as indicated for utility lines and utility line structures. Place bedding in 6 inch maximum loose lifts. Provide uniform and continuous support for each section of structure except at bell holes or depressions necessary for making proper joints. 3.4.1 Concrete Cradles

Specified in lieu of other types of bedding for a particular type of pipe material, shall be as indicated. 3.5 BURIED WARNING AND IDENTIFICATION TAPE

Install tape in accordance with manufacturer's recommendations except as modified herein. Bury tape at the depth indicated. 12 inches below finished grade; under pavements and slabs, bury tape 6 inches below top of subgrade. 3.6 BURIED DETECTION WIRE

Bury detection wire directly above non-metallic piping at a distance not to exceed 12 inches above the top of pipe. The wire shall extend continuously and unbroken, from manhole to manhole. The ends of the wire shall terminate inside the manholes at each end of the pipe, with a minimum of 3 feet of wire, coiled, remaining accessible in each manhole. The wire shall remain insulated over it's entire length. The wire shall enter manholes between the top of the corbel and the frame, and extend up through the chimney seal between the frame and the chimney seal. For force mains, the wire shall terminate in the valve pit at the pump station end of the pipe. 3.7 BACKFILLING SECTION 02302 Page 7

Case 1:05-cv-01121-EJD
FY 2001 MCON PRO