Specifications.pdf

S P E C I F I C A T I O N

FOR PROJECT

QJVF 07-0079

REPAIR ELECTRICAL FEEDER – DORMS

AT

MINOT AIR FORCE BASE, NORTH DAKOTA

PREPARED BY:

5 CES, ENGINEERING FLIGHT

MINOT AIR FORCE BASE, NORTH DAKOTA

JANUARY 2009

i

TABLE OF CONTENTS

DIVISION 1 - GENERAL REQUIREMENTS PAGES

01005 Administrative Provisions 01005-1 thru 6 01300 Submittals 01300-1 thru 4 01431 Environment Protection 01431-1 thru 4 01500 Construction Facilities & Temporary Controls 01500-1 thru 3

DIVISION 2 - SITEWORK

02005 Sitework 02005-1 thru 4 02072 Demolition 02072-1, 2 02222 Excavation, Trenching, and Backfilling for Utilities Systems 02222-1 thru 5 02265 Landscape Grading 02265-1, 2 02485 Seeding 02485-1 thru 3

DIVISION 3 – CONCRETE

03002 Concrete 03002-1 thru 4

DIVISIONS 4 THRU 15 – NOT USED

DIVISION 16 - ELECTRICAL

16010 General Provisions 16010-1 thru 6 16021 Disposal of Non-PCB Transformers 16021-1, 2 16110 Raceway 16110-1 thru 3 16120 Low Voltage Conductors 16120-1, 2 16122 Primary Distribution Wire and Cable 16122-1 thru 3 16411 Underground Electrical Service 16411-1, 2 16450 Grounding 16450-1, 2 16460 Transformers 16460-1 thru 6 16465 Sectionalizing Enclosure and 3-Phase Switch 16465-1 thru 3 16471 Panelboards 16471-1 thru 4 16500 Lighting 16500-1, 2 16900 Connections to Equipment 16900-1

DIVISION l - GENERAL REQUIREMENTS

SECTION 01005

ADMINISTRATIVE PROVISIONS

1. GENERAL:

1.1 DESCRIPTION OF WORK:

1.1.1 Work of this Contract, Repair Electrical Tanker Trail, QJVF 07-0079, comprises electrical construction and demolition located at Minot Air Force Base, North Dakota.

1.2 WORK SEQUENCE:

1.2.1 Construct Work in stages to accommodate Using Agency occupancy requirements during the construction period; coordinate construction schedule and operations with the Contracting Officer or Technical Representative.

1.2.1.1 Stage 1: Install new underground distribution system

to include primary and secondary cables, risers, and conduit, 3-phase transformers, and 3-phase sectionalizing enclosures.

*1.2.1.2 Stage 2: Terminate all primary and secondary cable, risers, transformers, and sectionalizing enclosures. Once terminations are completed and checked, energize the new primary, secondary underground system, and install street lighting.

1.2.1.3 Stage 3: Remove existing overhead primary and

secondary electrical systems to include overhead conductors, poles, crossarms, transformers, guys, and other related items.

1.3 USE OF PREMISES:

1.3.1 Limit use of premises for Work and for construction

operations, to allow for Using Agency Occupancy.

1.3.2 Coordinate use of premises under direction of the Contracting Officer.

1.3.3 Using Agency will occupy premises during entire period of construction. Cooperate with Contracting Officer to minimize conflict, and to facilitate Using Agency operations.

01005-1

1.3.4 Contractor's Responsibilities:

1.3.4.1 Receive, pick up, and unload products at site;

inspect for completeness, for damage, jointly with Contracting Officers.

1.3.4.2 Handle, install, and finish products.

1.3.4.3 Repair or replace items damaged by Work of this

Contract.

1.4 COORDINATION:

1.4.1 Coordinate work of the various Sections of Specifications to assure efficient and orderly sequence of installation of construction elements, with provisions for accommodating items installed later.

1.4.2 Verify characteristics of elements of interrelated operating equipment are compatible; coordinate work of various Sections having interdependent responsibilities for installing, connecting to, and placing in service, such equipment.

1.5 CONTRACTOR'S WORK HOURS: Working hours for the Contractor will normally be between the hours of 7:30 a.m. and 4:00 p.m., excluding Saturdays, Sundays, and federal holidays. If the Contractor desires to work during periods other than above, additional Government inspection forces may be required. The Contractor must make his/her request to the Contracting Officer three days in advance of his/her intention to work during other periods to allow assignment of additional inspection forces. If such force is reasonably available, the Contracting Officer may authorize the Contractor to perform work during periods other than normal duty hours/days. However, if inspectors are required to perform in excess of their normal duty hours/days solely for the benefit of the Contractor, the actual cost of inspection at overtime rates will be charged to the Contractor. These adjustments to the Contract price may be made periodically as directed by the Contracting Officer.

1.6 REFERENCE STANDARDS:

1.6.1 For products specified by association or trade standards, comply with requirements of the standard.

1.6.2 The date of the standard is that in effect as of the

Invitation for Bid Date.

1.7 SUBMITTALS:

1.7.1 Notify Contracting Officer in writing a minimum of five days prior to work start.

01005-2

1.8 RESTRICTED AREAS:

1.8.1 The work site is located in a restricted area; therefore, the Contractor shall conform to all requirements of MAFBI 31-101.

1.8.2 The Contractor shall anticipate some delays at the start and end of each day's operation.

1.8.3 Access to and from the site shall be controlled by the Base Security Police.

1.8.4 Individuals without adequate identification will not be allowed entry.

1.9 SAFETY:

1.9.1 Contractor to comply with all AFI/OSHA/NEC/NESC regulations.

1.9.2 Contractor to comply with MAFBI 32-2001, Responsibilities of Base Personnel to Eliminate or Control Fire Hazards. Contractor shall notify the Base Fire Department at 723-2461 prior to any construction that may cause road blockage, and when the road is reopened.

1.10 WELDING:

1.10.1 When any welding, cutting, brazing or use of any open flame device is to be used, an AF Form 592 permit must be obtained from the Base Fire Department, 320 Flightline Drive, prior to beginning such work.

1.10.2 During such work, a fully charged and operable fire

extinguisher, appropriate for the task, shall be provided by the Contractor.

1.11 HAZARDOUS WASTE: Any hazardous waste/material used or generated by the Contractor shall become the property of the Contractor. The use, generation and disposal of all hazardous waste/material will be the responsibility of the Contractor and shall be handled in accordance with all federal and state hazardous waste and toxic substances control regulations.

1.12 HAZARDOUS MATERIALS: Contractor shall submit prior to contract award Material Safety Data Sheet (MSDS’s) expected to be used during contract performance. Hazardous material shall be defined in the latest version of Federal Standard No. 313.

01005-3

1.13 RECYCLING/REUSE OF EXCESS MATERIALS AND CONSTRUCTION AND DEMOLITION

(C&D) DEBRIS: The Contractor shall reuse/recycle excess materials and Construction and Demolition (C&D) debris to the maximum extent possible. C&D debris are those excess/residue materials resulting from construction or demolition activity that would normally be discarded to a landfill. C&D debris included, but is not to be limited to soil, rock, vegetation, concrete, asphalt, and materials such as wood, metal, and wire materials. The Contractor shall recycle C&D debris and excess materials, if determined to be economical. All C&D debris resulting from demolition shall become the property of the Contractor unless specified otherwise or as determined by the Contracting Officer.

1.13.1 Materials not to be returned to the Government and all Contractor-generated rubbish, if not recycled, shall be disposed of by the Contractor off-bass at his own expense, and in compliance with applicable environmental codes and regulations of governing authorities.

1.13.2 Reporting Tonnage of C&D Debris: Contractor shall track and report the tonnage of C&D debris in two categories:

1.13.2.1 Tons of C&D that is or will be recycled or reused.

1.13.2.2 Tons of C&D that is disposed in a landfill.

The C&D recycled/disposed tonnage report shall consist of a written memo with the tonnage of each category (recycled and disposed tonnage) submitted to 5 CES/CEVP through the Contracting Officer. Submit C&D recycled and disposed tonnage report when the project is completed.

1.14 QUALITY CONTROL: The Contractor shall provide a qualified Quality Control Inspector who is familiar with all phases of operation. This individual shall be named and qualifications stated in the Quality Control Plan. The Quality Control Inspector’s responsibility shall be to make quality control inspections of all phases of the operation, in order to assure constant compliance with the contract specifications. A Quality Control Plan shall be submitted prior to the start of any work.

1.15 AS-BUILT DRAWINGS: The Contractor shall maintain a set of red-lined full scale, as-built construction drawings marked-up to fully indicate as-built conditions. These drawings shall be maintained in a current condition at all times until completion of the work and shall be available for review by Government personnel at all times. The location as dimensioned from permanent features, general description, type of material, and approximate depth below finished grade of all new and existing exterior underground utilities encountered shall be indicated. All variations from the contract drawings for the required coordination between trades, shall be indicated. These variations shall be shown in the same general detail utilized in the initial

01005-4 contract drawings. As-built construction drawings shall be furnished to the Contracting Officer for use during the final inspection. The as-built drawings shall be submitted to the Contracting Officer in accordance with Section 01300: SUBMITTALS.

1.16 DEWATERING: If water is encountered, the Contractor shall be responsible for dewatering the site. The area affected by the water shall be dried to a workable moisture prior to work proceeding. If the area cannot be stabilized by drying, the Contractor shall replace unsuitable soils with gravel fill. Dewatering of existing manholes, trenches, and excavations can be expected. During periods of high water table, frequent (or continuous) pump operation may be necessary. It will be the Contractor’s responsibility to furnish such equipment as may be necessary to enable the required work to be performed.

1.17 WORK PERMIT: The Contractor shall obtain from Construction Management, 5 Summit Drive, an approved AF Form 103, ″Base Civil Engineering Work Clearance Request, ″ prior to proceeding with actual construction.

1.18 HAULING MATERIALS: The use of base streets for hauling materials will be permitted if the vehicles are equipped with pneumatic tires. The haul route the Contractor will take will be determined at the preconstruction conference.

1.19 DRAWINGS AND SPECIFICATIONS: At least one set of drawings and specifications shall be kept at the job site by the Contractor’s superintendent.

1.20 WORK CONDUCT, CORRELATION, EXECUTION, ETC.:

1.20.1 Work Performance: Contractor shall conduct all work, including materials distribution in an orderly manner, and shall notify Contracting Officer within five (5) workdays of mobilizing at the job site.

Contractor shall confine and limit his personnel to only those areas required for work performance. All work shall be performed in a neat, orderly fashion, with extreme care exercised to avoid damage to all property in and around project areas. Any damage caused by the Contractor shall be replaced, repaired, or restored to the Contracting Officer’s satisfaction at no cost to the Government. Upon completion, all work areas shall be cleaned of all evidence of Contractor’s debris accumulations. During construction, the Contractor shall clear all debris from the flight line area, dispose of off-site daily, and all paved areas swept. Contractor’s proposed work schedule shall be coordinated with the Contracting Officer or his/her designated representative and airfield management two (2) weeks prior to the start of any work. All work areas shall be barricaded properly for day and nighttime safety warning.

01005-5

1.20.2 Access to the flight line is under the control of Security Police. The Contractor must comply with Minot AFB Instruction 13-213, Flightline Vehicle Operations. Copies of the regulation will be furnished to the Contractor upon request. Each Contractor employee that is required to drive on the flight line shall receive a flight line briefing and a flight line vehicle pass from the chief of Airfield Management.

1.20.3 Using Agency will occupy premises during entire period of construction, for the conduct of normal operations. Cooperate with the Contracting Officer and Airfield Management to minimize conflict and to facilitate Using Agency operations.

1.21 SECURITY REQUIREMENTS:

1.21.1 Base Regulations: All activities of the Contractor and his employees shall be conducted in strict accordance with Minot AFB Security Regulations. Copies of these regulations will be furnished to the Contractor upon request.

1.22 PERFORMANCE OF WORK:

1.22.1 Construction phase shall begin after the Contractor receives the notice to proceed. After receiving the notice to proceed, the Contractor shall have a performance period of 180 days to complete construction.

1.23 WINTER EXCLUSION: There shall be a winter exclusion of 1 November through 15 April.

1.24 GOVERNMENT-CAUSED DELAYS: The Contractor shall allow a total of 30 minutes for entry and exit of the work area. The 30 minutes shall be included in Item 001 of the Bid Schedule. The on-site supervisor shall notify the Contract Administrator of other delays within 24 hours of the delay.

Other delays may include generations, exercises, and Northern Neighbors Day.

1.25 CONFINED SPACE ENTRIES: Confined space entry is subject to AFOSH Standard 127-5 and any other regulations that govern confined space entries.

END OF SECTION

01005-6

01300-1

DIVISION 1 - GENERAL REQUIREMENTS

SECTION 01300

SUBMITTALS

1.1 PROCEDURES:

1.1.1 The Contractor shall be required to submit items listed in the Submittal Schedule at the end of this section to the Contracting Officer for approval prior to the deadline listed.

1.1.2 Transmit each item under AF 3000, Material Approval Submittal form. Identify contract number, project number, and Contractor. Identify section and paragraph reference for each item submitted with the AF 3000.

Submit five (5) copies unless otherwise required elsewhere in the specification.

1.1.3 Unless specifically stated otherwise elsewhere in this

specification, each submittal shall be approved by the Contracting Officer prior to incorporation of materials into the work.

1.1.4 Approvals of submittals which do not conform to the Contract shall not be construed as a change to the contract.

1.2 MANUFACTURER'S DATA AND SAMPLES: For the following types of submittals when a specific product of a specific manufacturer is identified (by catalog or product number, pattern, or style) and the Contractor does not desire to propose an alternate product as an equal, where an equal is allowed, a detailed submittal will not be required. The Contractor shall submit on an AF Form 3000 a list of submittals for which the specified products will be used. Submit in accordance with procedures identified in 1.1 above.

1.2.1 Product Data: Submit complete manufacturer's literature which describes all salient characteristics identified as requirements in the specification. Literature which is not specific to the proposed product shall be marked to indicate clearly which item is being proposed for use in this contract.

1.2.2 Manufacturer's Certification: Submit a statement from the product manufacturer that proposed products meet the specified standards and other salient characteristics identified as requirements in the specification.

01300-2

1.2.3 Installation Instructions: Submit manufacturer's printed instructions for delivery, storage, assembly, installation, start-up (if applicable) and adjustments. Information shall include temperature restrictions and any other environmental limitations as well as substrate preparation requirements if any exist.

1.3 TEST DATA: Test results shall be dated and signed by the agency performing the test.

1.4 WARRANTY: Submit detailed warranty information which identifies specifically items covered as well as exclusions from the warranty and the warranty period. All copies shall be dated and signed by an authorized officer of the company. The officer's name and title shall be typed on the warranty adjacent to the signature.

1.5 OPERATION/MAINTENANCE INSTRUCTIONS: Submit manufacturer's published instructions, which shall include a parts list.

1.6 MISCELLANEOUS SUBMITTALS: Submittals which are none of the above types shall meet the specific requirements identified in the referenced paragraph of the Specification Section identified in the schedule.

1.7 SUBMITTAL SCHEDULE: The following is a list of required submittals for this Contract, and deadlines for their submittal.

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01300-4

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01431-1

SECTION 01431

ENVIRONMENT PROTECTION

1.1 The Contractor shall perform all work in such manner as to minimize the polluting of air, water, or land, and shall, within reasonable limits, control noise and the disposal of solid waste materials, as well as other pollutants.

1.2 IMPLEMENTATION: Within 20 calendar days after Notice to Proceed and prior to commencement of the work at the site, the Contractor shall:

1.2.1 Submit a detailed proposal for implementing the requirements for environmental pollution control specified herein.

2. PRODUCTS: Not Used.

3. EXECUTION:

3.1 PRECONSTRUCTION SURVEY: Prior to start of any on-site construction activities, the Contractor shall make a condition survey after which the Contractor shall record on a layout plan the condition of trees, shrubs, and grassed areas immediately adjacent to the site of the work and adjacent to his assigned storage area and access route as applicable.

3.2 PROTECTION OF LAND AREAS: Except for work areas, storage areas, or access routes specifically assigned for the use of the Contractor under this contract, the land areas outside the limits of permanent work performed under this contract shall be preserved in their present condition. The Contractor shall confine his construction activities to areas defined for work on the plans or specifically assigned for his use. Storage and related areas and access routes required temporarily by the Contractor in the performance of the work will be assigned by the Contracting Officer.

3.3 PROTECTION OF WATER RESOURCES: The Contractor shall control the disposal of fuels, oils, bitumens, calcium chloride, acids or harmful materials, both on and off the Government premises and shall comply with applicable federal, state, county and municipal laws concerning pollution of rivers, streams, and wetlands while performing work under this contract.

Special measures shall be taken to prevent chemicals, fuels, oils, greases, bituminous materials, herbicides, and insecticides from entering public

01431-2 waters. Water used in on-site material processing, concrete curing, foundation and concrete cleanup, and other waste waters shall not be allowed to reenter a stream if an increase in the turbidity of the stream could result therefrom.

3.3.1 Disposal of water generated during construction dewatering.

3.3.1.1 Dewatering of Groundwater: For temporary dewatering

of groundwater encountered during construction, the Contractor shall land apply all water generated in accordance with Paragraph: LAND APPLICATION.

3.3.1.1.1 Land Application: Land application shall

follow state requirements; however, no permit will be necessary. "Land Application" implies that the Contractor shall discharge water at a rate, which allows the water to percolate into the soil. No sheeting action, soil erosion, discharge into storm sewers, defined drainage areas, or discharge into the "Waters of the State" shall occur. The Contractor shall contact the State of North Dakota, Division of Water Quality and Permit Program, to discuss the water quality parameters for chemical contaminants (such as chlorine), oil, grease, and total suspended solids and shall ensure that all water intended for land application will meet the state requirements.

3.4 WASTE DISPOSAL: As part of his proposed implementation under paragraph 1.2, and prior to on-site construction, the Contractor shall submit a description of his scheme for handling and disposing of all waste resulting from the work under this contract. If any waste is dumped in unauthorized areas, the Contractor shall remove the waste and restore the area to the condition of the adjacent undisturbed areas. Where directed, soil, which is contaminated by the Contractor shall be excavated, disposed of as approved by the Contracting Officer, and replaced with suitable fill material, all at the expense of the Contractor.

3.5 BURNING: Burning shall be prohibited on the Government premises.

3.6 DUST CONTROL: The Contractor shall maintain all excavations, embankments, stockpiles, access roads, plant sites, waste areas, borrow areas, and all other work areas free from excess dust to such reasonable degree as to avoid causing a hazard or nuisance. Temporary methods consisting of sprinkling, chemical treatment, light bituminous treatment or similar methods will be permitted to control dust. Dust control shall be performed as the work proceeds and whenever a dust nuisance or hazard occurs.

3.7 EROSION AND SEDIMENT CONTROL: The Contractor shall be responsible for providing erosion and sediment control measures in accordance with local, state, and federal regulations. The erosion and sediment controls selected and maintained by the Contractor shall be such that local, state, and federal water quality standards are not violated as a result of the Contractor's

01431-3 construction activities. The area of bare soil exposed at any one time by construction operations should be held to a minimum. For areas subject to erosion including, but not limited to, steep slopes, soils spreading areas, and stockpile areas, the Contractor shall disturb as little vegetation as possible, minimize the period of time that the soil is exposed, prevent surface water runoff from flowing across disturbed areas, stabilize disturbed soils as soon as possible, and provide adequate drainage for the increased runoff. Sedimentation/erosion control features may include, but not be limited to, vegetation cover, stream bank stabilization, slope stabilization construction of terraces, interceptor channels, sediment traps, inlet and outfall protection, diversion channels, and sedimentation basins. Runoff management practices should be employed in areas where the potential for storm water contamination exists that can not be addressed by a prevention or source reduction measure. Runoff management procedures may include vegetative swales, reuse of collected storm water, infiltration devices, and detention/sedimentation basins. Any erosion and sediment control measures which are damaged or found to be ineffective shall be remedied by the Contractor at no additional cost to the Government. Any areas damaged by erosion shall be repaired by the Contractor at no additional cost to the Government.

3.8 CORRECTIVE ACTION: The Contractor shall, upon receipt of a notice in writing of any noncompliance with the foregoing provisions, take immediate corrective action. If the Contractor fails or refuses to comply promptly, the Contracting Officer may issue an order stopping all or part of the work until satisfactory corrective action has been taken. No part of the time lost due to any such stop orders shall be made the subject of a claim for extension of time or for excess costs of damages by the Contractor unless it is later determined that the Contractor was in compliance.

3.9 POST-CONSTRUCTION CLEANUP OR OBLITERATION: The Contractor shall, unless otherwise instructed in writing by the Contracting Officer, obliterate all signs of temporary construction facilities such as haul roads, work areas, structures, foundations of temporary structures, stockpiles of excess or waste materials, and other vestiges of construction prior to final acceptance of the work. The disturbed areas shall be graded and filled and the entire area seeded.

3.10 SPILL PREVENTION AND RESPONSE PLAN: The Contractor shall include a Spill Prevention and Response Plan in the Implementation Proposal. The plan shall describe the Contractor's procedures for preventing and responding to spills of hazardous materials.

01431-4

3.11 ARCHEOLOGICAL PRESERVATION: Should the Contractor uncover any skeletons, artifacts or other archeological remains during the course of excavation, the work shall be stopped and the Contracting Officer notified immediately.

01500-1

SECTION 01500

CONSTRUCTION FACILITIES & TEMPORARY CONTROLS

1.1 REQUIREMENTS INCLUDED:

1.1.1 Electricity, Lighting.

1.1.2 Sanitary Facilities.

1.1.3 Barriers.

1.1.4 Protection of Installed Work.

1.1.5 Water Control.

1.1.6 Cleaning During Construction.

1.2 RELATED REQUIREMENTS:

1.2.1 Outages.

1.2.1.1 Outages shall include:

1.2.1.1.1 Blocking of Roadway.

1.2.1.1.2 Blocking of Parking Lots.

1.2.1.1.3 Power Outages.

1.2.1.2 Notification

1.2.1.2.1 The Contractor shall notify the inspector, in writing, fourteen days in advance of the intended outage.

1.2.1.2.2 The Contractor shall notify the Fire

Department and Security Police of an intended roadway blockage.

1.3 REGULATIONS: The Contractor shall comply with the prevention practice contained in NFPA Standard #241, Standard for Safeguarding Building Construction and Demolition Operations.

01500-2

1.4 ELECTRICITY:

1.4.1 All reasonable quantities of utilities will be made available to the Contractor at no charge.

1.4.2 Provide service required for construction operations, with branch wiring and distribution boxes located to allow service and lighting by means of Construction-type power cords.

1.4.3 Provide lighting for construction operations, when applicable.

1.5 SANITARY FACILITIES:

1.5.1 Contractor shall provide and maintain required facilities and enclosures.

1.5.2 Existing facilities shall not be used.

1.6 BARRIERS:

1.6.1 Provide as required to prevent public entry to construction areas and to protect existing facilities and adjacent properties from damage from construction operations.

1.6.2 Provide, erect, and maintain barricades and lighting as required by OSHA standards around open excavations.

1.6.3 Provide barriers around equipment designated to remain.

Protect against vehicular traffic, stored materials, dumping, chemically injurious materials, and puddling or continuous running water.

1.7 PROTECTION OF INSTALLED WORK:

1.7.1 Provide temporary protection for installed products. Control traffic in immediate area to minimize damage.

1.7.2 Limit traffic and storage on lawn and landscaped areas.

1.8 SECURITY:

1.8.1 Provide security program to protect work, existing facilities, and Using Agency's operations from unauthorized entry, vandalism, and theft.

Coordinate with Contracting Officer and Security Police.

01500-3

1.9 WATER CONTROL:

1.9.1 Grade site to drain. Maintain excavations free of water.

Provide and operate pumping equipment as required.

1.10 CLEANING DURING CONSTRUCTION:

1.10.1 Control accumulation of waste materials and rubbish;

periodically dispose of off-site daily.

1.11 REMOVAL:

1.11.1 Remove temporary materials, equipment, services, and

construction prior to substantial completion inspection.

1.11.2 Clean and repair damage caused by installation or use of temporary facilities and services; restore existing facilities used during construction to specified, or to original condition.

1.11.3 The Contractor shall daily maintain the site in a clean and orderly manner in accordance with Corp of Engineers Manual EM 385-1-1.

2. PRODUCTS: Not Used.

3. EXECUTION: Not Used.

02005-1

DIVISION 2 - SITEWORK

SECTION 02005

SITEWORK

1.1 PROTECTION:

1.1.1 Protect trees, shrubs, lawns, walks, and other features remaining as portion of final landscaping.

1.1.2 Protect bench marks, existing structures, paving and curbs.

1.1.3 Protect above-and below-grade utilities which are to remain.

1.1.4 Repair damage.

1.1.5 Protect excavations as required to prevent cave-in or loose soil from falling into excavations.

1.1.6 Notify Contracting Officer of unexpected subsurface conditions and discontinue work in affected areas until notified to resume work.

1.1.7 Grade excavation perimeter to prevent surface water run-off from entering into excavation.

1.2 PERMITS:

1.2.1 AF Form 103: The Contractor shall obtain from Construction Management, 5 Shawnee Road, an approved AF Form 103, "Base Civil Engineer Work Clearance Request," prior to proceeding with an actual excavation.

1.3 REFERENCES:

1.3.1 ASTM C 136: Sieve analysis of fine and course aggregates.

1.3.2 ASTM D 698: Tests for moisture - Density Relations of Soils and Soil-Aggregate Mixtures using 5.5-lb. Rammer and 12-inch drop.

1.3.3 ASTM D 1556: Density of Soil in place by Sand Cone Method.

1.3.4 ASTM D 1557: Moisture Density Relations of Soils and Soil Aggregate Mixture using 10-lb. Rammer and 18-inch drop.

02005-2

2. PRODUCTS:

2.1 FILL MATERIAL:

2.1.1 Sand: Natural river or bank sand, free of clay, silt, loam, friable or soluble materials and organic matter; graded in accordance with

ANSI/ASTM C 136.

2.1.2 Common Fill: Reused, free of gravel larger than 3-inch size and debris.

2.2 TOPSOIL: Natural, fertile agricultural soil capable of sustaining vigorous plant growth, not in muddy or frozen condition, containing not less than 6% organic matter. Free of subsoil, slag, clay, stones, lumps, live plants, roots, sticks, crab grass, cough grass, noxious weeds and foreign matter.

2.3 SEED: Two pounds Crested Wheat - one pound Kentucky Bluegrass.

2.4 FERTILIZER: Commercial Type with 50% of the elements derived from organic sources.

3. EXECUTION:

3.1 PREPARATION:

3.1.1 Identify required lines, levels, contours, datum, below grade utilities, aboveground utilities.

3.1.2 Maintain and protect existing utilities.

3.1.3 Upon discovery of unknown utilities or concealed conditions, discontinue affected work and notify Contracting Officer.

3.2 EXCAVATION:

3.2.1 Excavation subsoil required for building foundations, construction operations and other work.

3.2.2 Machine slope banks to angle of repose or less until shored.

3.2.3 Hand trim excavation and leave free of loose matter.

3.2.4 Remove lumped subsoil, boulders, and rock.

3.2.5 Correct unauthorized excavation.

3.2.6 Remove from site excess subsoil not being reused.

02005-3

3.3 BACKFILLING:

3.3.1 Backfill areas to contours and elevations. Use unfrozen materials.

3.3.2 Backfill systematically, as early as possible, to allow maximum time for natural settlement.

3.3.3 Place and compact fill material in continuous layers not exceeding 8 inches loose depth.

3.3.4 Do not disturb or damage foundation, waterproofing, protective cover or insulation.

3.3.5 Maintain optimum moisture content of backfill materials to attain required compaction density.

3.3.6 Remove surplus backfill materials from site. Leave stockpile areas completely free of excess fill materials.

3.4 LANDSCAPE GRADING:

3.4.1 Place 4 inches of topsoil in areas to receive seeding.

3.4.2 Fine grade relatively dry topsoil eliminating rough or low spots.

3.4.3 Remove foreign material including roots, grass and weeds.

3.4.4 Lightly compact topsoil.

3.4.5 Remove excess soil from site.

3.4.6 Tolerance of topsoil: plus or minus 1/2 inch.

3.5 SEEDING:

3.5.1 Apply fertilizer at a rate of 10 pounds per 1,000 square feet.

Do not apply grass seed and fertilizer at same time, in same machine. Lightly water.

3.5.2 Apply seed at a rate of 5 pounds per 1,000 square feet evenly in two intersecting directions. Rake in lightly.

3.5.3 Roll seeded area with roller not exceeding 112 pounds.

3.5.4 Water with fine spray immediately.

02005-4

3.5.5 Maintain seeded area for 30 days. Cut grass first time when it reaches a height of 2 1/2 inches and maintain to minimum height of 2 inches.

Apply weed killer when weeds first appear.

3.5.6 Replant damaged grass areas showing root growth failure, deterioration, bare or thin spots and eroded areas.

3.5.7 Acceptance will result when seeded areas are properly

established.

3.5.8 Contractor may choose to use hydro turf or sod at no

additional cost to the Government.

02072-1

SECTION 02072

DEMOLITION

1.1 WORK INCLUDED:

1.1.1 Remove designated materials, equipment, and fixtures.

1.1.2 Cap and identify exposed utilities.

1.2 RELATED WORK:

1.2.1 Section 01005: Administrative Provisions-Work Sequence.

1.3 SUBMITTALS:

1.3.1 Demolition procedures and operational sequence for review and acceptance.

1.4 PROTECTION:

1.4.1 Cease operations and notify the Contracting Officer

immediately if safety of structure appears to be endangered. Take precautions to properly support structure. Do not resume operations until safety is restored.

1.4.2 Provide, erect and maintain barricades to prohibit access to area during removal of existing materials, equipment, and fixture.

2. PRODUCTS:

2.1 MATERIALS:

2.1.1 The Contractor shall maintain possession of materials being removed, except as noted below and on drawings. The Contractor shall turn over to the Government those items identified at a location on base to be determined following removal. The Contracting Officer will identify the specific delivery point at the time.

2.1.2 Carefully remove, store, and protect for turn-in of the following materials and equipment, to designated area identified by the Government representative.

02072-2

2.1.2.1 Carefully remove all overhead distribution

transformers. Refer to Section 16021 for requirements.

3. EXECUTION:

3.1 PREPARATION:

3.1.1 Carry out demolition work to cause as little

inconvenience to adjacent occupied building areas as possible.

3.2 DEMOLITION:

3.2.1 Demolish in an orderly and careful manner as required to accommodate new work.

3.2.2 Perform demolition in accordance with applicable authorities having jurisdiction.

3.2.3 Repair all demolition performed in excess of that required, at no cost to the Air Force.

3.2.4 Burning of materials on site is not permitted.

3.2.5 Remove from site contaminated, vermin infested or dangerous materials encountered and dispose of by safe means so as not to endanger health of workers and public.

3.2.6 Remove demolished materials daily and tools and equipment from site upon completion of work.

02222-1

SECTION 02222

EXCAVATION, TRENCHING, AND BACKFILLING FOR UTILITIES SYSTEMS

1.1. APPLICABLE PUBLICATIONS: The publications listed below form a part of this specification to the extent referenced. The publications are referred to in the text by the basic designation only.

1.1.1 American Society of Testing and Materials (ASTM) Publications:

D 422 Particle-Size Analysis of Soils

D 1556 Test Method for Density and Unit Weight of Soil in Place by the Sand-Cone Method

D 1557 Moisture-Density Relations of Soils and Soil-Aggregate Mixtures Using 10-lb.

(4.54 kg.) Rammer and 18-in. (457-mm) Drop

D 2487 Classification of Soils for Engineering Purposes (Unified Soil Classification System)

1.2 DEFINITIONS:

1.2.1 Satisfactory Materials: Satisfactory materials shall consist of any material classified by ASTM D 2487 as SM, SW, SP, GW, GP, and CL.

Generally, these materials will be base or subbase materials removed from their original location by trenching or excavation operations. With the approval of the Contracting Officer, these materials may be used for backfill.

1.2.2 Unsatisfactory Materials: Unsatisfactory materials shall be materials that do not comply with the requirements for satisfactory materials.

Unsatisfactory materials include but are not limited to those materials containing roots and other organic matter, trash, debris, frozen materials and stones larger than 3 inches, and materials classified in ASTM D 2487 as PT, OH, and OL. Unsatisfactory materials also include man-made fills, refuse, or backfills from previous construction.

02222-2

1.2.3 Cohesionless and Cohesive Materials: Cohesionless materials shall include materials classified in ASTM D 2487 as GW, GP, SW, and SP.

Cohesive materials include materials classified as GC, SC, ML, CL, MH and CH.

Materials classified as GM and SM will be identified as cohesionless only when the fines are nonplastic.

1.2.4 Unstable Material: Unstable material shall consist of

materials too wet to properly support the utility pipe, conduit or appurtenant structure.

1.2.5 Granular Material: Material shall be washed sand, crushed-stone screenings or slag composed of hard, tough, durable particles free from adherent coatings. Material shall not contain corrosive agents, organic matter, or soft friable, thin or elongated particles in quantities considered deleterious by the Contracting Officer. The granular material shall contain not more than 10 percent by weight of material passing a No. 200 mesh sieve and no less than 95 percent by weight passing the 1-inch sieve. The maximum allowable aggregate size shall be 1-1/2 inches, or the maximum size recommended by the pipe manufacturer whichever is smaller. Materials shall be clean and free from soil slurries and foreign materials. Material found to be dirty or otherwise contaminated after installation shall be removed and replaced with satisfactory material by the Contractor at no expense to the Government.

1.2.6 Initial Backfill Material: Initial backfill shall consist of select granular material or satisfactory materials free from rocks 1-1/2 inches or larger in any dimension or free from rocks of such size as recommended by the pipe manufacturer, whichever is smaller.

1.2.7 Degree of Compaction: Degree of compaction shall be expressed as a percentage of the maximum density obtained by the test procedure presented in ASTM D 1557, compaction effort designation CE 55.

1.3 GENERAL QUALITY CONTROL TESTING: Shall be the responsibility of the Contractor and shall be performed at no additional cost to the Government.

1.3.1 Testing Facilities: Tests shall be performed by an

independent commercial testing laboratory.

1.3.2 Testing of Backfill Materials: Characteristics of backfill materials shall be determined in accordance with particle size analysis of soils ASTM D 422 and moisture-density relations of soils ASTM D 1557, CE 55.

A minimum of one particle size analysis and one moisture-density relation test shall be performed on each different type of material used for backfill.

Results shall be submitted in accordance with Section 01300: SUBMITTALS. A mechanical tamper may be used provided the results are correlated with those obtained by the referenced hand tamper in ASTM D 1557, Method D.

02222-3

1.3.3 Construction Quality Control: Quality control sampling and testing during construction shall be performed as required in paragraph 3.3, Field Quality Control.

1.4 SUBMITTALS: Copies of all laboratory and field test reports shall be submitted to the Contracting Officer within 24 hours of the completion of the test.

2. PRODUCTS: Not Used.

3. EXECUTION:

3.1 EXCAVATION: Shall be performed to the lines and grades indicated.

During excavation, material satisfactory for backfilling shall be stockpiled in an orderly manner at a distance no closer than 3 feet from the banks of the trench. Excavated material not required or not satisfactory for backfill shall be removed from Minot AFB. Grading shall be done as may be necessary to prevent surface water from flowing into the excavation. Any water accumulating therein shall be removed to maintain the stability of the bottom and sides of the excavation. Unauthorized over excavation shall be backfilled in accordance with paragraph 3.2, BACKFILLING AND COMPACTION, at no additional cost to the Government.

3.1.1 Dewatering: Ground water should be anticipated. If ground water conditions are such as to jeopardize the stability of the trenches during excavation, pipe placement and backfilling, dewatering shall be performed by the Contractor by whatever methods necessary at no additional cost to the Government.

3.1.2 Trench Excavation: Trench walls below the top of the duct shall be made vertical. Trench walls more than four feet high shall be shored, cut back to a stable slope or provided with equivalent means of protection for employees who may be exposed to moving ground or cave in.

Special attention shall be given to trenches which may be adversely affected by weather or moisture content.

3.1.2.1 Bottom Preparation: The bottoms of trenches shall be

accurately graded. Stones of 3 inches or greater and other unsatisfactory materials shall be removed.

3.1.2.2 Removal of Unstable Material: Where unstable

material is encountered in the bottom of the trench, such material shall be removed to the depth directed and replaced to the proper grade with select granular material as provided in paragraph 3.2, BACKFILLING AND COMPACTION, at

02222-4 no additional cost to the Government. When removal of unstable material is required due to the fault or neglect of the Contractor in his performance of the work, the resulting material shall be excavated and replaced by the Contractor without additional cost to the Government.

3.1.3 Excavation for Appurtenances: Excavation for manholes, catch-basins, inlets, or similar structures shall be sufficient to leave at least 12 inches clear between the outer structure surfaces and the face of the excavation or support members, or of sufficient size to permit the placement and removal of forms for the full length and width of structure footings and foundations as shown. Removal of unstable material shall be as specified above. When concrete or masonry is to be placed in an excavated area, special care shall be taken not to disturb the bottom of the excavation. Excavation to the final grade level shall not be made until just before the concrete or masonry is to be placed.

3.1.4 Stockpiles: Stockpiles of satisfactory and unsatisfactory materials shall be placed only in the staging area. Stockpiles of satisfactory materials shall be placed and graded as specified. Stockpiles shall be kept in a neat and well drained condition, giving due consideration to drainage at all times. Stockpiles of satisfactory materials shall be protected from contamination which may destroy the quality and fitness of the stockpiled material. If the Contractor fails to protect the stockpiles, and any material becomes unsatisfactory, such material shall be removed and replaced with satisfactory material from approved sources at no additional cost to the Government. Stockpiles of satisfactory materials shall be subject to prior approval of the Contracting Officer.

3.1.5 Utilities: When utility lines are encountered that are not indicated on the drawings or location made known to the Contractor, the Contracting Officer shall be notified immediately and prior to further work in that area.

3.2 BACKFILLING AND COMPACTION: Backfill material shall consist of satisfactory material or initial backfill material as required. Backfill shall be placed in layers not exceeding 6 inches loose thickness for compaction by hand operated machine compactors, and 8 inches loose thickness for other than hand operated machines, unless otherwise specified. Each layer shall be compacted to at least 95 percent maximum density for areas under ground sleeves, asphalt or concrete, and 85 percent maximum density for trenches and other areas.

3.2.1 Backfill for Appurtenances: After the manhole, catch-basin, inlet vault or similar structure has been constructed and the concrete has been allowed to cure for 7 days, backfill shall be placed in such a manner that the structure will not be damaged by the shock of falling earth. The

02222-5 backfill material shall be deposited and compacted as specified for final backfill, and shall be brought up evenly on all sides of the structure to prevent eccentric loading and excessive stress.

3.3 FIELD QUALITY CONTROL: Testing shall be the responsibility of the Contractor and shall be performed at no additional cost to the Government.

Testing shall be performed by an independent commercial testing laboratory and results shall be submitted to the Contracting Officer.

3.3.1 Field Density Tests: Tests shall be performed in sufficient numbers to ensure that the specified density is being obtained. A minimum of one field density test per lift of bedding material or backfill for every 500 linear feet of installation shall be performed. One moisture density relationship shall be determined for each type of material used. Field in-place density shall be determined in accordance with ASTM D 1556.

Calibration curves shall be checked and adjusted using only the sand cone method as described in ASTM D 1556. The calibration checks of both the density and moisture gages shall be made at the beginning of a job, on each different type of material encountered, at intervals as directed by the Contracting Officer's Technical Representative. Copies of calibration curves, results of calibration tests, and field and laboratory density tests shall be furnished to the Contracting Officer within 24 hours of conclusion of the tests. Trenches improperly compacted shall be reopened to the depth directed, then refilled and compacted to the density specified at no additional cost to the Government.

02265-1

SECTION 02265

LANDSCAPE GRADING

1.1 WORK INCLUDED:

1.1.1 Finish grade subsoil.

1.1.2 Place, level and compact topsoil.

1.2 RELATED WORK:

1.2.1 Section 02222 - Excavation, Trenching, and Backfilling for Utilities Systems.

1.2.2 Section 02485 - Seeding: Finish ground cover.

1.3 PROTECTION:

1.3.1 Protect landscaping and other features remaining as final work.

1.3.2 Protect existing structures and roads.

2. PRODUCTS:

2.1 MATERIALS:

2.1.1 Topsoil: Existing material or imported material, graded free of roots, rocks larger than one inch, subsoil debris, and large weeds.

Existing material shall be used in trenches for primary distribution cables.

Imported material shall be used in trenches for secondary cable.

3. EXECUTION:

3.1 INSPECTION:

3.1.1 Verify site conditions and note irregularities affecting work of this Section.

3.1.2 Beginning work of this Section means acceptance of existing conditions.

02265-2

3.2 SUBSOIL PREPARATION:

3.2.1 Eliminate uneven areas and low spots. Remove debris, roots, branches, stones, in excess of 1/2-inch in size. Remove subsoil contaminated with petroleum products.

3.2.2 Scarify subgrade to depth of three inches where topsoil is scheduled. Scarify in areas where equipment used for hauling and spreading topsoil has compacted subsoil.

3.3 PLACING TOPSOIL:

3.3.1 Place topsoil in areas where seeding is scheduled.

3.3.2 Use topsoil in relatively dry state. Place during dry

weather.

3.3.3 Fine grade topsoil eliminating rough or low areas. Maintain levels, profiles and contours of subgrade.

3.3.4 Remove stone, roots, grass, weeds, debris and foreign material while spreading.

3.3.5 Manually spread topsoil around trees and building to prevent damage.

3.3.6 Lightly compact placed topsoil.

3.3.7 Remove surplus subsoil and topsoil from site.

3.3.8 Leave stockpile area and site clean and raked, ready to receive landscaping.

3.4 TOLERANCES:

3.4.1 Top of Topsoil: Plus or minus one percent.

3.5 SCHEDULE OF LOCATIONS:

3.5.1 The following paragraphs identify compacted topsoil

thicknesses for various locations.

3.5.2 Seeded Grass: Four inches.

02485-1

SECTION 02485

SEEDING

1.1.1 Hydroseeding.

1.1.2 Maintaining seeded areas until acceptance.

1.2 DELIVERY, STORAGE AND HANDLING:

1.2.1 Deliver grass seed in original containers showing analysis of seed mixture, percentage of pure seed, year of production, net weight, date of packaging and location of packaging. Damaged packages are not acceptable.

1.2.2 Deliver fertilizer in waterproof bags showing weight, chemical analysis, and name of manufacturer.

1.3 EXISTING CONDITIONS:

1.3.1 Beginning work means acceptance of existing conditions.

2. PRODUCTS:

2.1 GROWING MEDIA:

2.1.1 Imported Topsoil: Natural, fertile, agricultural soil typical of locality, capable of sustaining vigorous plant growth, from well drained site free of flooding, not in frozen or muddy condition, not less than 6% organic matter, and pH value of 5.9 to 7.0. Free from subsoil, slag, clay, stones, lumps, live plants, roots, sticks, crabgrass, coughgrass, noxious weeds and foreign matter.

2.1.2 Existing Topsoil: Natural, fertile agricultural soil capable of sustaining vigorous plant growth, not…