Attachment 1-SPECS_BPT_RWY12_MALSR_RWY16_PAPI.pdf

DEPARTMENT OF TRANSPORTATION

FEDERAL AVIATION ADMINISTRATION

CENTRAL SERVICE AREA

NAVAIDS ENGINEERING CENTER – KANSAS CITY

AJW-2C14B

JCNs: 1800897, 18033975 10/17/19

Specification for

Hurricane Restoration Projects to Replace Runway 16 VASI w/PAPI & Replace Runway 12 MALSR, Jack Brooks Regional

Airport, Beaumont, TX

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TABLE OF CONTENTS

DIVISION 1 - GENERAL REQUIREMENTS SECTION 1A SPECIAL CONDITIONS

DIVISION 1 – GENERAL REQUIREMENTS SECTION 1B SAFETY ON AIRPORTS

DIVISION 2 – SITE WORK SECTION 2A EARTHWORK AND SITE IMPROVEMENTS

DIVISION 2 – SITE WORK SECTION 2B CRUSHED AGGREGATE ROAD AND SITE

SURFACING

DIVISION 2 – SITEWORK SECTION 2D TOPSOIL AND GRASS COVER

DIVISION 2 - SITE WORK SECTION 2E MISCELLANEOUS SITE IMPROVEMENTS

DIVISION 3 – CONCRETE SECTION 3A CONCRETE FORMWORK AND REINFORCEMENT

DIVISION 3 – CONCRETE SECTION 3B CAST-IN-PLACE CONCRETE

DIVISION 5 – METALS SECTION 5A MISCELLANEOUS METALS

DIVISION 6 – WOOD AND PLASTICS SECTION 6A ROUGH CARPENTRY

DIVISION 13 – SPECIAL CONSTRUCTION SECTION 13C PAPI

DIVISION 16 – ELECTRICAL SECTION 16A BASIC METHODS AND MATERIALS

DIVISION 16 – ELECTRICAL SECTION 16B 600-VOLT POWER CABLE FOR

UNDERGROUND INSTALLATION

DIVISION 16 – ELECTRICAL SECTION 16C 600-VOLT ARMORED POWER CABLE

DIVISION 16 – ELECTRICAL SECTION 16E CONTROL CABLE

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DIVISION 16 – ELECTRICAL SECTION 16F CABLE INSTALLATION

DIVISION 16 – ELECTRICAL SECTION 16G CABLE TESTING

1.GOVERNMENT FURNISHED MATERIALS

2.

3.

4.

5.

6.

LIST OF DRAWINGS

EOSH SAFETY ADVISORIES

CONTRACTOR COMPLETION CERTIFICATE

TECHNICAL REFERENCE DATA RECORD (TRD)

ENGINEERING BRIEF NO. 95

ATTACHMENTS:

DIVISION 1 - GENERAL REQUIREMENTs

SECTION 1A

SPECIAL CONDITIONS

1A.1 SCOPE.

a. This Specification covers general requirements for construction. In general, all parts of this Specification cover construction required on project drawings and in other Contract documents applicable to this Contract.

b. The Contractor shall furnish all plant, labor, materials (except Government-furnished property), equipment, energy, transportation, and other services necessary to construct all elements of the systems required in the Specifications, Drawings, and other Contract documents. Construction shall include all miscellaneous and incidental work necessary for a complete and operational system, whether or not such work is specifically shown or specified.

c. The Scope of Work for the Restoration Projects to Replace Runway 16 VASI w/PAPI & Runway 12 MALSR, Jack Brooks Regional Airport, Beaumont, TX shall include (but is not limited to):

RWY 12 MALSR:

1) Demolition of existing RWY 12 MALSR sytem, including light towers, wiring/conduit, and foundations

2) Demolition of RWY 12 MALSR equipment shelter, including foundations, wiring/conduit and salvage of existing MALSR and RRC equipment.

3) Site preparation and installation of foundations/conduit and wiring, and handholes for new RWY 12 MALSR, and drainage lines.

4) Installation of EMT/LIR light station towers and structures.

5) Installation of new FAA-provided RWY 12 MALSR equipment shelter, including primary power wiring, grounding and foundations and steel staircase/platform.

6) Installation of Remote Radio Control System components for shelter & ATCT.

7) Site prep and installation of new access road for RWY 12 MALSR, including de-watering for foundations and trench work.

8) All necessary tests and tuning of system to ensure operational compliance.

9) All associated work incidental to construction (mobilization, pollutant control, safety, etc.).

RWY 16 PAPI:

1) Demolition of existing RWY 16 VASI system, including light units, foundations, wiring/conduit, and salvage of existing control box and transformers.

2) Site preparation and installation of conduit/wiring and handholes, along with PCA rack and foundations for new RWY 16 PAPI.

3) Installation of new Light Housing Assemblies (FAA provided) and associated plot for RWY 16 PAPI, along with wiring/conduit installation and handholes.

4) Installation of Remote Radio Control System components for shelter & ATCT.

5) Site prep and installation of new access road for RWY 16 PAPI, including de-watering for foundations and trench work.

6) All necessary tests and tuning of system to ensure operational compliance.

7) All associated work incidental to construction (mobilization, de-watering, pollutant control, safety, etc.)

1A.2 GOVERNMENT-FURNISHED Material (GFM). Government-furnished Material for this contract is listed on the Government-furnished Material list and is the sole Contract document which validly identifies Government-furnished material under this Contract.

The Government-furnished property will be available on site prior to construction.

1A.3 CONTRACTOR-FURNISHED MATERIAL. The Contractor shall furnish all material under this contract per Paragraph 1A.1b, except the Government-furnished material identified on the Government-Furnished Material List. The instruction “by others” on the drawings means equipment that is provided by a third party. Contractor will not be required to provide work or material shown as “by others”. The Contractor shall be aware that certain materials to be furnished by the Contractor, may be long-lead-time items.

Therefore, the successful bidder should determine the availability of all material immediately after Contract award, and initiate procurement action on long-lead-time items at the earliest possible date. Where the Specifications mention material or equipment by brand, it is regarded as a known acceptable source, as it meets Specifications.

1A.4 SUBMITTALS AND BRAND NAME USAGE.

a. Introduction. Each product required for use in the Contract Drawings and

Specifications must meet the actual minimum needs of the Government as demonstrated in the salient characteristics for that product. If a brand name product is used in the Drawings or Specifications, it should be regarded as a "known acceptable source" (i.e., a product that meets the actual minimum needs, and demonstrates the appropriate salient characteristics). The product used can be identical or equal to the brand name product or known acceptable source in meeting the salient characteristics, but it need not exceed the actual minimum requirements. Any brand name product or known acceptable source mentioned will, however, not be required for use in order to comply with the Specification or Drawing unless those documents make it clear that the brand name product is required, and substitution is prohibited. The following submittal procedure shall be followed in order to:

i. Insure adherence to functional and quality standards in substitution of contractor furnished material.

ii. Provide manufacturers catalog sheets for all material to be furnished and installed by the contractor.

b. Definition. A submittal is a collection of information required by Specifications, or by the Contracting Officer, presenting detailed information on:

i. Material or equipment items the Contractor proposes to use.

ii. Methods or plans of action which the Contractor intends to employ in specific situations.

c. Requirements. All products that a Contractor wishes to use must be approved before use by the Project Engineer or the Contracting Officer's Representative (COR). To gain approval, the Contractor must submit documents and/or samples that demonstrates the product clearly meets the Government's minimum needs, and demonstrates appropriate salient characteristics. All submittals must be in writing. The Contracting Officer shall have the right to require submittals from the Contractor where the Contractor makes an unsolicited change proposal. The information presented in a submittal shall be sufficient to demonstrate that all Specification requirements for the subject material, equipment, methods, or plans, are met by the Contractor's proposal.

The informational materials may include documents such as shop drawings, sketches, calculations, data sheets, written plans of action, manufacturers' catalog cuts, brochures, and/or specification sheets. If the Specifications or Contracting Officer requires actual samples of material or equipment, the Contractor shall provide them.

d. Submittal Review. When submitting before the Notice to Proceed date, the Contractor shall send the submittal package(s) directly to the Contracting Officer. When submitting after Contract work has begun, the Contractor shall give submittal packages to the RE, who will forward them promptly to the Contracting Officer or Project Engineer. The Contracting Officer may personally evaluate the submittal, or request Project Engineer to evaluate it. In either case, the submittal will return directly from the Contracting Officer to the Contractor, with the Contracting Officer's approval, approval with comments, or disapproval.

e. Submittal Time Frame. To provide adequate time for document transmission and submittal review, the FAA reserves the right to take two weeks to complete a review, transmission date to transmission date. Terminal navigational aid contracts are brief contracts. The review process can therefore span a substantial portion of the contract period. For this reason:

i. The Contractor is urged to initiate submittals as soon as feasible after contract award, and to expedite document transmission.

ii. The Project Engineer and other reviewers (if any) will expedite reviews and document transmission insofar as feasible. Maximum use of fast document transmission modes (e.g. email, fax, etc.) is encouraged.

f. Procurement Before Approval. The Contractor is advised not to procure any item for which submittal approval is required but not yet granted. If approval is denied, the Contractor will be prevented from installing the disapproved item(s). The Contractor must transmit a new submittal package for the new items replacing the disapproved items, and must procure only approved items. The Contractor shall take responsibility for the delivery and installation of any items installed before submittal approval is granted. The FAA reserves the right to discontinue field work on any item furnished without submittal approval.

1A.5 PRE-CONSTRUCTION CONFERENCE. The Contractor shall attend a pre-construction conference when required by the Contracting Officer or airport management. The Contractor shall abide by all agreements reached at the conference regarding safety practices, ingress and egress routes to the site, maintenance of airport security (locking gates, etc.), deference to air traffic, and other operational procedures.

1A.6 COORDINATION. All coordination between the Contractor and the airport management and local FAA personnel, shall be accomplished through the RE.

1A.7 TEMPORARY ELECTRICAL POWER. Unless otherwise specified, the Contractor shall make all arrangements and pay all costs for temporary electrical power needed for construction of the facility.

1A.8 COMPLIANCE WITH LOCAL AND OTHER CODES. The Contractor shall comply with standards (e.g., National Electrical Code) adopted by the Contract documents, and with local and other codes. Where the requirements of the Specifications and Drawings exceed those of the adopted and local codes, the Contractor shall comply with the requirements of the Specifications and Drawings.

1A.9 SANITARY FACILITIES. Sanitary facilities are not available at the work sites. The Contractor shall provide temporary toilet facilities for their employees as required by OSHA regulations. The locations of the toilet facilities shall be where directed by the RE.

DIVISION 1 – GENERAL REQUIREMENTS

SECTION 1B

SAFETY ON AIRPORTS

1B.2 DEFINITION.

a. Classified Area. For classified area such as the Runway Safety Area (RSA), Object

Free Area (OFA), or any other critical areas refer to the plans. Classified areas are specific for every site.

1B.3 GENERAL PRECAUTIONS. The Contractor shall abide by all requirements as specified herein, in the Contract clauses, on the construction safety plan, and as established by airport authorities in the pre-construction conference. The Contractor shall be responsible for thoroughly explaining all safety and security precautions required on the airport to all workers, both under their direct employment and under their subcontractors.

1B.4 CONSTRUCTION WITHIN CLASSIFIED AREAS.

a. Restrictions.

i. Construction within or access through classified areas will not be permitted whenever runways or taxiways defining the classified areas are being used for aircraft operations.

ii. If runways and taxiways within classified areas are required to remain open, construction within the classified areas will be interrupted as necessary to permit normal aircraft operations. No person is allowed in the RSA when runway is in operation.

b. Time Frame. All construction within classified areas shall be completed within the shortest possible time. Construction shall be performed continuously during normal working hours, except as otherwise specified, until all work within the classified areas is completed.

1B.5 CONSTRUCTION WITHIN UNCLASSIFIED AREAS. Construction will be permitted within unclassified areas while aircraft are using adjacent runways and taxiways, excepting as specified elsewhere or established during the pre-construction conference.

1B.6 MAINTENANCE OF AIRCRAFT OPERATING SURFACES. Soil, debris, or loose materials dropped or tracked onto airport roads, runways, taxiways, and ramps shall be immediately swept up and removed. Likewise, all loose material at the job site or dropped enroute to the job site which can be blown onto the above aircraft surfaces, shall be immediately placed in closed containers to prevent damage to aircraft.

1B.7 EQUIPMENT PARKING. All equipment not in use at the close of each day shall be parked in the staging area provided in the construction and safety plan or as directed by the

RE.

1B.8 RADIO COMMUNICATIONS. At airports served by airport traffic control towers or airport owner/operator radio communications facilities, (if so directed by the airport management), the Contractor shall furnish and operate two-way radio communications with these facilities when personnel, vehicles, and equipment are required to enter the aircraft operations area, to obtain proper clearance for construction hazards to aircraft, and at all other times established during the pre-construction conference.

1B.9 TEMPORARY AIRCRAFT PAVEMENT TEMPORARY MARKING AND LIGHTING.

These requirements only for part 139 airport and/or when displacing a threshold.

a. Installation. If runway and/or taxiway closure or runway threshold relocation or displacement is required, the Contractor shall install temporary marking or temporary marking and lighting, as shown on the construction safety plan Drawing(s), if any. All temporary marking shall be constructed of plywood, durable fabric, or other approved material, placed and secured so as to pose no threat of damage to aircraft, and which can be easily removed after construction completion.

b. Maintenance. It will be the Contractor's responsibility to maintain the temporary marking and lighting in a condition acceptable to the RE. If marking or lighting is damaged or becomes inoperative, the Contractor shall immediately repair the affected items.

c. Removal. Upon acceptable completion of the work that necessitated runway threshold displacement or runway and/or taxiway closure, the Contractor shall remove all temporary marking and lighting, and shall return the runway and taxiway and lighting configuration to the original condition.

1B.10 ADVISORY CIRCULAR. As a minimum, the Contractor shall adhere to all requirements of Advisory Circular AC 150/5370-2G, "Operational Safety on Airports During Construction" and the included reference documents. This document is available at [http://www.faa.gov/documentLibrary/media/Advisory_Circular/150_5370_2g.pdf.]

DIVISION 2 – SITE WORK

SECTION 2A

EARTHWORK AND SITE IMPROVEMENTS

2A.1 DESCRIPTION OF WORK. The extent of earthwork is indicated on the drawings and by the provisions of this section.

2A.2 QUALITY ASSURANCE.

a. Codes and Standards. Perform all earthwork in compliance with applicable requirements of governing authorities having jurisdiction.

b. Testing and Inspection.

i. Soil material, moisture content, and degree of compaction shall conform to ASTM specifications referenced herein. Professional soil testing methods associated with this specification will generally not be required, but the FAA reserves the right to engage a state-licensed soil testing service to resolve disputes regarding adequacy of all earthwork performed.

ii. Visual inspection and qualitative testing shall be performed by the contractor in the presence of, and wherever directed by, the RE.

2A.3 SAFETY REQUIREMENTS.

a. Refer to Division 1 Section 1B for construction within classified and unclassified areas.

b. To protect life, property, and work, all earthwork operations shall be performed in compliance with local and OSHA requirements. The Contractor shall provide all sheeting, shoring, and other bracing as necessary.

c. All trenches in classified areas shall be excavated and backfilled during the same day.

2A.4 JOB CONDITIONS.

a. Existing Utilities.

i. Locate all underground cables, utility lines, and other underground construction before beginning excavation work. Any damage to such lines or construction belonging to the FAA, utility companies, or others, shall be promptly repaired, at contractor's expense, to the complete satisfaction of the owner.

ii. Project drawings generally indicate locations of cables maintained by the Federal Aviation Administration only. The FAA will mark with paint or flags the approximate locations of its own cables. Provide a minimum of 48 hours notice to RE prior to digging so that the cables can be marked.

b. Weather Conditions.

i. Excavating and backfilling for foundations, trenches, and jacking or boring pits, shall not proceed when excessively wet or freezing weather conditions could adversely affect the load-bearing characteristics of the soil, or prevent proper compaction.

ii. When freezing weather is expected, excavations shall not be made to full depth unless concrete or conduits can be placed immediately. If an excavation is already at full depth, the excavation shall be protected from frost.

c. Drainage.

i. All excavations shall be continually drained by natural means or pumping to prevent any decrease in soil bearing capacity or damage to poured foundations or to trenches.

ii. Provide and maintain pumps, well points, sumps, suction and discharge lines, and other dewatering system components necessary to convey water away from excavations.

iii. Establish and maintain temporary drainage ditches and other diversions outside excavations limits to convey rain water and water removed from excavations to collecting or run-off areas. Do not use trench excavations as temporary drainage ditches.

2A.5 MATERIALS.

a. Structure and Foundation Materials. In-place undisturbed inorganic soils will be adequate to support all project structures, unless otherwise indicated. Highly organic soils (topsoil, peat, and swamp location soils) shall be removed entirely from areas to be occupied by structures.

b. Backfill and Fill. Material shall be inorganic soil excavated from site, or borrow comprised of inorganic soil approved by the RE. All such soils shall be free of rock, gravel, and cohesive lumps greater than two inches in any direction, and debris, waste, vegetation, frozen material, and other deleterious materials.

c. Base Course for Concrete Slabs. Material shall be a graded mixture of washed crushed stone or crushed or uncrushed gravel with 100% passing a 1 ½ inch sieve, and not more than 5% passing a number 4 sieve.

2A.6 SITE PREPARATION.

a. Clearing and Grubbing. The Contractor shall scalp areas where excavation or embankment will be made. Scalping shall include the removal of materials such as trees, brush, roots, sod, grass, residue of agriculture crops, sawdust, and decayed vegetable matter, from the surface of the ground. These materials shall be removed from the site and disposed of off airport property.

b. Topsoil Removal.

i. Topsoil shall be considered soil containing visible vegetable matter and black loam that will not compact with the usual compacting methods.

ii. Unless otherwise specified, topsoil shall be removed from all areas to receive fill, granular surfacing, pavement, and structures, and from all areas where subsoil excavating is required, such as for roadway cuts and ditches. Dispose of excess topsoil on or off airport property, as directed by the RE, at no additional cost to the Government.

2A.7 EXCAVATION.

a. Excavation Classification. Excavation is unclassified and includes excavation to subgrade elevation indicated, regardless of character of materials and obstructions encountered excepting as qualified herein.

b. Rock Excavation. If rock is encountered above the design footing elevations of any facility structure, such foundation shall bear entirely on clean solid rock or on soil, but not on both. If the soil-and-rock bearing condition is encountered, the RE will determine which material shall support the structure. If rock surface is used, it shall be reasonably level or shall be stepped to make level segments.

c. Unauthorized Excavation. Removal of materials beyond design subgrade elevations or dimensions without specific direction from the RE constitutes unauthorized excavation.

Remedial work for such excess excavation shall be as directed by the RE at the Contractor's expense.

d. Additional Excavation. When any excavation has reached required subgrade elevation, notify the RE, who will inspect soil conditions. If the RE determines that the soil possesses inadequate bearing capacity, carry such excavation deeper as directed by the

RE.

e. Excavation for Structures.

i. Conform to elevations and dimensions shown within a tolerance of plus or minus

0.10 foot, and extending a sufficient distance from footings and foundations to permit placing and removal of concrete formwork, installation of services and other construction, and for inspection.

ii. In excavating for footings and foundations, remove loose soil and compact bottom of hole prior to placing reinforcement and concrete, and place 3” depth crushed rock layer on top of subgrade before pouring cast-in-place concrete.

f. Excavation for Cable and Conduit Trenches.

i. Excavate in compliance with lines and depths shown on drawings. Minimum trench depth shall allow for cables to be installed at the depths specified in Paragraph 16F.3.b.ii., unless otherwise specified. Slope trenches to same elevations as conduits where cables will be routed to a building interior. Minimum trench width shall be that required to accept power-operated mechanical tampers.

ii. Grade bottom surfaces of trenches to provide uniform bearing and continuous support for cable and conduit.

iii. Material excavated in excess by error, or due to unsuitable bearing, shall be replaced with mechanically compacted inorganic soil.

iv. If solid rock is encountered, the RE will decide if such rock need be removed or if an alternate trench route or lesser depth conduit installation will be acceptable.

v. If a trench must cross a concrete or asphalt paved surface, all cuts shall be saw cuts, unless otherwise specified.

2A.8 COMPACTION.

a. General.

i. All compaction shall be accomplished by using power-operated mechanical equipment except for limited use of manual tampers in constricted areas. Operate all power equipment as herein specified to achieve the minimum degree of compaction subject to acceptance by testing.

ii. Cohesive soils are defined herein as those containing less than 60 percent sand, gravel, or stone. Percentages greater than 60 percent are herein termed non-cohesive soils.

b. Cohesive Soil Compaction.

i. Use sheepsfoot roller of such minimum weight that at least 200 psi will be transmitted to surface area of studs or feet. Operate at speeds not exceeding 4 mph on each layer of fill until roller walks itself to top of grade.

ii. Use motor-operated soil tamper (stomper) in confined areas, including trenches, on each layer of fill until no further visible consolidation is evident.

iii. Use a heavy blunt tamping rod on each layer of fill in the most constricted locations where power equipment cannot be used.

c. Non-Cohesive Soil Compaction.

i. Use pneumatic tire roller fully loaded and weighing not less than 275 pounds per inch of tire tread width. Operate at speeds not exceeding 4 mph. A minimum of ten passes of the roller is required on each layer of fill.

ii. Use motor-operated vibratory tamper in confined areas, including trenches, on each layer of fill until no further visible consolidation is evident.

iii. Use heavy blunt tamping rods on each fill layer in constricted locations where power equipment cannot be used.

d. Moisture Control.

i. Where soil material must be moisture-conditioned before compaction, uniformly apply water to a layer of soil material in such quantity that free water will not appear on the surface during or subsequent to compaction operations.

ii. Scarify and air-dry soil material that is too wet to permit compaction to specified density.

e. Percentage of Maximum Density Requirements.

i. General Requirements. The required densities for cohesive and non-cohesive soils are determined by quantitative testing procedures defined by ASTM Standards D 1557 and D 4253/4254, respectively. To assure compliance, the Contractor may arrange for such professional soil testing services, at no additional cost to the Government. The FAA, at its expense, may also make such arrangements if qualitative testing procedures appear inadequate.

ii. Structures, Slabs, and Access Roads/Parking Areas. Compact top surfaces of subgrade and each layer of backfill or fill material to 90% of maximum density for cohesive soils, or to 95% relative density for non-cohesive material.

iii. Turf and Non-Vehicular Surfaced Areas. Compact top surfaces of subgrade and each layer of backfill or fill material to 90 percent of maximum density for cohesive soils, or to 90 percent relative density for non-cohesive material.

f. Qualitative Testing and Inspection Procedure.

i. General. The Contractor shall perform qualitative soil compaction testing and inspection procedures for each type of backfill or fill material used wherever directed by, and in the presence of, the RE. Special attention shall be given to the backfilling of structures and trenches.

ii. Qualitative Testing.

1. Qualitative soil testing will consist of comparing the resistance to penetration of undisturbed soil to that of compacted backfill of the same composition. For borrow material the penetration comparison shall be made between maximum test sample density and in-place fill density.

2. A soil penetration device (penetrometer) indicating depth and force exerted shall be utilized. Compaction will be adequate if backfill or fill possesses at least 95% of the resistance to penetration of undisturbed soil or test sample, respectively.

3. Borrow test sample shall be a four-inch-deep (compacted measurement) layers of soil, aerated or moistened as directed by the RE, and compacted by power equipment until no further consolidation occurs, as approved by the RE.

iii. Concrete Slab Base Course. Compact with vibratory tamper until no further visible consolidation is evident.

2A.9 BACKFILL AND FILL.

a. Structure Foundations. Backfill or fill as promptly as work permits, but not until completion of the following:

i. Acceptance of construction below grade.

ii. Recording locations of underground conduit.

iii. Removal of concrete formwork, bracing, trash, and debris.

b. Ground Surface Preparation. Remove vegetation, debris, topsoil, and unsatisfactory subsoil from ground surface, and compact the subgrade, prior to placement of fill layers.

c. Placement and Compaction.

i. Place acceptable backfill and fill materials in layers not more than eight inches in loose depth for material to be compacted by heavy equipment, and not more than four inches in loose depth for material to be compacted by hand-operated tampers.

ii. Before compaction, moisten or aerate each layer as necessary to provide optimum moisture content. Do not place backfill or fill on water, ice, snow, frozen soil, or excessively wet soil.

d. Cable Trench Backfill.

i. Before laying cables, inspect the bottom of the cable trench. If it is not smooth, or if any rock or stone that would be retained on a 1/4-inch sieve is present, place a two-inch layer of bedding material, according to Paragraph (2) below, in the trench.

Do not compact this layer. Lay cables on top of this layer.

ii. The first layer of backfill material over cables shall be three inches deep, loose measurement, and shall be sand or other homogeneous inorganic soil containing no mineral aggregate particles that would be retained on a 1/4-inch sieve. This layer shall not be mechanically compacted.

iii. The second layer, in turf and crushed rock surface areas, shall be four inches deep, loose measurement, and shall contain no mineral aggregate particles that would be retained on a one-inch sieve. Subsequent layers shall be clean soil containing no rock particles larger than two inches in their largest dimension.

iv. Except for surfacing material, all layers of trench backfill, for areas to be paved or surfaced with crushed rock, shall be sand, placed and compacted as required for access roads.

1. If a trench crosses an area surfaced with crushed rock, the top 12 inches of trench backfill shall be crushed rock, placed and compacted as required for access roads. The finished grade elevation of the crushed rock backfill shall equal the grade elevation of existing adjacent crushed rock.

2. If a trench crosses an area surfaced with concrete or asphalt pavement, the pavement shall be replaced with materials of the same composition, thickness, and degree of compaction as the adjacent pavement structure, except that the crushed rock base shall be a minimum of 12 inches deep. Replacement concrete shall have a 28-day compressive strength of 3,000 psi. Finished grade of the pavement patch shall be flush with the adjacent pavement surfaces.

e. Backfill and Fill Surface Elevations. Finished grade, shown on the drawings, is the top surface of turf and crushed rock or crushed stone surfaced areas. Therefore, make allowances for six inches of topsoil and depths as detailed or specified for surfaced areas when establishing top surface of fill or backfill.

2A.10 GRADING.

a. General. Uniformly grade areas within limits of grading, including adjacent transition area. Smooth the finished surfaces within specified tolerances, and compact with uniform slopes between points where elevations are indicated, or between such points and existing grades.

b. Grading Outside Building Lines. Grade areas adjacent to building lines to drain away from structures and to prevent ponding. Finish areas to receive topsoil and surfacing within 0.10 feet above or below required subgrade elevations.

c. Grading Surface of Fill Under Building Slabs. Grade smooth and level and to proper elevation to within a tolerance of 1/2 inch when tested with a 10-foot straightedge.

2A.11 MAINTENANCE.

a. Protection of Graded Areas. Protect newly graded areas from traffic and erosion. Keep free of trash and debris.

b. Reconditioning. Where compacted areas are disturbed by construction operations, adverse weather, or where any settlement has occurred, scarify surface, add acceptable fill, reshape, grade, and compact as necessary.

2A.12 DISPOSAL OF EXCESS AND WASTE MATERIALS. Remove and dispose of all excess soil and waste material from the project site and adjacent lands. All costs associated with disposal shall be at Contractor's expense.

2A.13 CONDUIT INSTALLATION BY JACKING OR BORING.

a. Materials. Conduit shall be 4-inch diameter, rigid, galvanized steel unless otherwise specified on the drawings. See section 16F.4 for high density polyethylene (HDPE) directional boring. The leading end of the conduit to be jacked shall be equipped with an approved cap or point designed specifically for pipe jacking.

b. Excavation and Backfill of Jacking or Boring Pits. Excavation and backfill of all pits used for the installation of conduit shall conform to Section 2A.9.

c. Jacking Equipment. Pipe jacking equipment shall be an approved design for the purpose of jacking pipe and shall be capable of developing sufficient force to overcome frictional and/or other resisting forces built up over the distance involved.

1. Drilling fluids: Drilling fluids used in the drilling operation shall be mixtures of bentonite and water or such other fluids of the Contractor’s choosing.

2. Disposal of such drilling fluids shall be the responsibility of the Contractor and shall be conducted in compliance with all relative environmental regulations, and work space agreements and permit requirements.

3. The Contractor shall minimize to every extent possible the occasions of inadvertent returns of drilling fluids at locations other than the planned entry and exit points.

4. The Contractor shall perform disposal of drilling fluids in compliance with all relative environmental regulations.

5. The Contractor shall perform immediate clean-up of inadvertent drilling fluid returns at all locations where they occur.

d. Location. Conduit shall be located where shown on the drawings and/or as staked out by the RE. Conduit shall be started into place at a minimum of 36 inches below finished grade, if not otherwise specified in the proposal or on drawings. The transverse alignment shall be considered satisfactory only when the terminating or leading end of the conduit exits within 5 feet of its intended location for a conduit length of less than 50 feet. For lengths greater than 50 feet, the transverse location must not be outside of 15 feet of the intended location. The vertical limits of the point of exit of the leading end of the conduit shall be between 24 inches and 50 inches below finished grade for conduits up to 50 feet in length and between 24 inches and 84 inches for conduits of greater length.

2A.14 e. Conduit Length. Unless otherwise specified, conduit, no matter how installed, shall extend a minimum of 5 feet beyond each side of the pavement or structure.

2A.15 f. Conduit Sealant. After completion of conduit and cable installation, both ends of the conduit shall be sealed with Permagum or other approved compound to prevent entrance of moisture.

DIVISION 2 – SITE WORK

SECTION 2B

CRUSHED AGGREGATE ROAD AND SITE SURFACING

2B.1 DESCRIPTION OF WORK. The extent of work is indicated on the drawings and by the provisions of this section.

2B.2 STATE SPECIFICATIONS. State highway construction specifications, latest edition, form a part of this Specification and are applicable for all work unless otherwise specified.

This referenced specification will be hereinafter referred to as "State Specifications."

Disregard all references in the State Specifications to layout of work by others, and to measurements and payments. All layout work will be accomplished by the Contractor, and payment for all work under this section will be a part of the lump-sum contract.

2B.3 MATERIALS.

a. Geotextile.

i. Application. The most common application of geotextiles in FAA navaids construction is as a separator. In this application, the geotextile is placed over prepared roadway subgrade soil, and crushed aggregate is placed and compacted on top of the geotextile. The geotextile permits water to permeate into the subgrade, while preventing the aggregate from mixing with the subgrade soil. The geotextile specified below is for application as a separator.

ii. Separator Geotextile Selection Criteria. The geotextile fibers, and the threads used in joining the geotextile by sewing, shall consist of long chain polymeric fibers composed of polypropylene, polyester, polyolefins, or polyamide. Both the geotextile and threads shall be resistant to chemical attack, mildew, and rot. The geotextile shall conform to the physical property requirements listed in the following table. All values shall represent certifiable minimum values in the weakest principle direction of the fabric.

Property Test Method Requirements

Tensile Strength ASTM D-4595 2460 lbs/ft

Tensile Strength (at 2% strain)

ASTM D-4595 480 lbs/ft

Tensile Strength (5%)

ASTM D-4595 1212 lbs/ft

Tensile Strength (10%)

ASTM D-4595 2340 lbs/ft

Factory Seam Strength

ASTM D-4632 1250 lbs/ft

Flow Rate ASTM D-4491 50 gpm/ft^2

Permeability ASTM D-4491 0.04 cm/sec

Permittivity ASTM D-4491 0.6 sec^-1

Apparent Opening Size

ASTM D-4751 U.S. Sieve #30, max

UV Resistance ASTM D-4355 80% str. retained

iii. Geotextile Fabric Width. Fabric width shall be at least 12 feet for the normal 12-foot-wide access road. Fabric in other vehicular areas shall be cut to fit, and overlapped per Paragraph 2B.4c(2)(b), below, to fully cover such areas.

b. Landscape Fabric.

i. Application. Landscape fabric shall be applied under all non-roadway crushed rock surfacing. In these applications, landscape fabric is placed over prepared walkway subgrade soil, and crushed aggregate is placed and compacted on top of the landscape fabric. The Contractor shall have the option of substituting geotextile per Paragraph 2B.3a, for landscape fabric.

ii. Landscape Fabric Selection Criteria. The landscape fabric fibers shall be a needle punched nonwoven geotextile composed of polypropylene, polyester, polyolefin, or polyamide fibers. The fabric shall be resistant to chemical attack, mildew, and rot.

The fabric shall conform to the physical property requirements listed in the following table. All values shall represent certifiable minimum values in the weakest principle direction of the fabric.

Property Test Method Requirements

Grab Tensile Strength ASTM D-4632 120 lbs

Grab Elongation ASTM D-4632 50%

Trapezoidal Tear ASTM D-4533 50 lbs

CBR Puncture Strength ASTM D-6241 310 lbs

Apparent Opening Size ASTM D-4751 U.S. Sieve #70, max

Permittivity ASTM D-4491 1.7 sec^-1

Flow Rate ASTM D-4491 1.35 gpm/ft^2

iii. Landscape Fabric Width. Fabric width shall be 3 feet wide for a 3-foot-wide crushed rock walkway. Fabric in other walkway areas shall be cut to fit, and overlapped per Paragraph 2B.4.c.ii.2., below, to fully cover such areas.

c. Crushed Aggregate Surfacing.

i. Crushed rock or crushed stone aggregate shall comply with State Specification quality requirements for crushed rock or crushed stone used for road surface course, and shall be of the State gradation most closely conforming with the following gradation:

Sieve Size Total Passing, Percent

1-inch 100 -inch 80-100

-inch 30-60

No. 4 48-65

No. 8 35-50

No. 30 19-30

No. 50 13-23

No. 100 7-15

No. 200 0-8

ii. A certified sieve analysis, referenced to State Specification gradation, shall be submitted to the RE for approval.

2B.4 Construction.

a. General Requirements. All earthwork requirements in Section 2A for areas to receive surfacing are applicable, excepting as qualified herein. Where the additional work or more stringent requirements in this section conflict with Section 2A, requirements herein shall prevail.

b. Foundation Preparation.

i. Foundation Material. All topsoil shall be removed from areas to receive paving and surfacing or fill under such surfaces. Only inorganic soil shall exist under surfaced or paved areas.

ii. Compaction. Compact as required in Section 2A.

iii. Grading. Shape with motor grader to achieve such surface trueness that when tested with a 10-foot straightedge, no deviation greater than 1/2-inch shall exist.

iv. Corrective Work. Any ruts or soft-yielding spots that may appear in the subgrade, any areas having inadequate compaction, and deviations of the surface from the requirements specified shall be corrected by loosening, removing, and adding approved material and reshaping and recompacting the affected areas to line and grade, and to the specified density.

c. Geotextile or Landscape Fabric.

i. General. Geotextile or landscape fabric, if required on the drawings, shall be installed on prepared subgrade for all areas that will experience vehicular traffic or pedestrian traffic, respectively.

ii. Construction Requirements.

1. Prepared subgrade and foundations shall be compacted smooth and level as specified elsewhere and as shown on the drawings.

2. The fabric shall be rolled out directly upon the prepared surface, and shall not be dragged over any surface. Fabric in place shall have a smooth surface and shall be free of folds, wrinkles, cuts, or other imperfections. Individual panels of fabric shall be overlapped at least 24 inches, with the preceding layer overlapping the following layer in the direction that surfacing material will be spread. No vehicular traffic will be permitted directly upon the fabric.

d. Crushed Aggregate Surfaced Areas and Crushed Aggregate Base Course for Bituminous Pavement.

i. Spreading. Crushed aggregate surfaced areas and base course shall be constructed in one or more layers of maximum 6-inch compacted thickness each. Crushed aggregate shall be deposited directly and uniformly on the prepared subgrade, if no geotextile or landscape fabric is used. If geotextile fabric is required, the aggregate shall be back-dumped on the fabric, and machine spread in the direction of overlap.

Dumping in windrows, which requires excessive rehandling, will not be permitted.

When deposited, the aggregate shall be free from segregation, and shall require minimum blading or manipulation.

ii. Compaction and Grading.

1. Each layer of aggregate shall be compacted using equipment required in the

State Specifications. For compacting aggregate on a geotextile or landscape fabric, use a smooth-drum roller. Compaction shall closely follow the spreading operation to prevent loss of contained moisture or displacement of materials.

2. When the surface stability of the crushed aggregate cannot be obtained due to lack of fines, additional fines shall be added to the upper portion of the course in an amount sufficient to secure stability, at no additional cost to the Government.

In no case, however, shall the quantity of fines added increase the percent passing the Number 200 sieve by more than 15 percent in the upper portion.

3. Any irregularities or depressions that develop in the layers under rolling operations shall be corrected by loosening the material and removing or adding aggregate and rerolling. The rolling shall be continued until the surface is shown to be smooth and uniform, and to such trueness that when tested with a 10-foot straightedge it shall not show any deviation in excess of 1/4-inch. At all places not accessible to the roller, the aggregate of each layer shall be tamped separately and compacted to grade and line with mechanical tampers.

4. If any subgrade material is worked into the aggregate material during the compacting or finishing operations, all granular material within the affected areas shall be removed and replaced with new aggregate. The RE may restrict hauling or traffic over the completed or partially completed base after inclement weather or at any time when the subgrade is soft, and there is a tendency for the subgrade material to work into the base material.

5. If considered necessary by the RE, water shall be applied to each layer to aid in compaction and prevent segregation of the material. Disc or harrow surfacing material during moistening operations to secure uniform moisture distribution.

Add water in a manner that will not soften the subgrade. All work associated with the additional water shall be accomplished at no additional cost to the Government.

6. The aggregate shall be compacted to 95 percent maximum density as determined by AASHTO-T99. Compaction shall continue until no further discernible compaction is evidenced under action of the compaction equipment.

If in the opinion of the RE, the required degree of compaction has not been achieved, testing in accordance with the standard will be conducted and paid for by the Contractor. If testing confirms unacceptable compaction, reconstruction or other remedial work may be required by the Contractor at no additional cost to the Government.

DIVISION 2 – SITEWORK

SECTION 2D

TOPSOIL AND GRASS COVER

2D.1 DESCRIPTION OF WORK. The extent of topsoil placement and establishment of grass cover is indicated on the drawings and the provisions of this section.

2D.2 GENERAL REQUIREMENTS. All areas of the project site, access road right-of-way, and cable trench routes, which will not be occupied by pavement, crushed rock/stone surfacing, or other construction, shall receive preparation and grass seed planting and maintenance.

Included in this work will be off-site turf reconditioning and replacement for those areas damaged by construction operations.

2D.3 MATERIALS.

a. Topsoil. Material shall be that removed from project site location preparatory to trenching and site construction. Reuse only that part of stockpiled topsoil reasonably free of subsoil, trash, roots, stumps, weeds, debris, litter, and stones larger than 2 inches.

b. Fertilizer. Provide complete fertilizer of 5-10-5 composition (percentages of nitrogen, phosphorous, and potash, respectively).

c. Grass Seed. Provide fresh, clean, new-crop seed complying with tolerance for purity and germination established by Official Seed Analysts of North America. Provide the following seed mixture composed of grass species and proportions:

Proportion by weight Common Name 45% Kentucky Bluegrass 5% Perennial Ryegrass 35% Redtop 15% White Clover

d. Anti-Erosion Mulch. Provide clear, seed-free salt hay or threshed straw of wheat, rye, oats, or barley. Anchor the mulch sufficiently to prevent it from being blown away.

2D.4 PREPARATION FOR PLANTING.

a. Subsurface Preparation. After completion of all construction operations that could disturb topsoil areas, subgrades shall be cleared free of waste and stones larger than 2 inches, then tilled to a depth of 3 inches, and graded to remove surface irregularities.

b. Topsoil and Surface Preparation. Spread topsoil uniformly to provide a 6-inch layer, after compaction, on all fill and backfilled areas to receive grass seed. Compact with a roller weighing 85-100 pounds per foot of width. Subgrade and topsoil shall be damp when work is performed, but not wet, dusty, or frozen.

c. Preparation of Unchanged Grades. Where seed will be planted in areas that have not been altered by grading, prepare soil for planting as follows: till to a depth of 6 inches, apply fertilizer, remove high areas and fill depressions, till soil to a homogenous mixture of fine texture, free of lumps, stones, roots, and trash, and compact as above.

d. Fertilizer. Apply fertilizer at the rate of 30 pounds per 1000 square feet of area. Mix fertilizer into top 2 inches of topsoil.

e. Surface Preparation. Fine grade to a smooth, even surface and to a loose, uniformly fine texture. Roll, rake, and drag seeded areas, remove ridges, and fill depressions as necessary to meet finish grades. Limit work to areas that can be planted immediately.

Moisten prepared areas before planting if soil is dry. Allow surface mixture to dry and proceed with seeding.

2D.5 SEEDING.

a. Seed Condition. Do not use old, wet, or moldy seed. The seed shall be dated with the year in which it is being applied.

b. Sowing. Use spreader or sowing machine. Do not seed when wind velocity exceeds 5 mph. Distribute seed evenly over entire area by sowing equal quantities in two directions at right angles to each other. Seed at rate of 5 pounds of seed per 1000 square feet of area. Rake seed lightly into top 1/8 inch of soil, roll lightly, and water with a fine spray.

c. Protection. Spread mulch uniformly to form a continuous loose blanket after completion of seeding operations. Anchor the mulch sufficiently to prevent it from being blown away.

2D.6 MAINTENANCE. Maintain for a period of 60 days after seeding. If maintenance for a 60-day period is not feasible, the Contractor shall use a commercially available mix of seed, fertilizer, and long-lasting mulch, or a preseeded anchored mat that can be maintained less frequently with the same results. Water, fertilize, regrade, and replant as required to establish smooth, acceptable turf.

DIVISION 2 - SITE WORK

SECTION 2E

MISCELLANEOUS SITE IMPROVEMENTS

2E.1 DESCRIPTION OF WORK. The extent of miscellaneous site work is indicated on the drawings and by the provisions of this section.

2E.2 REMOVAL OF EXISTING FOUNDATIONS. All foundations of removed buildings, trailers, antenna supports, or other structures shall be removed to a minimum depth of two feet below final grade and backfilled with compacted earth in accordance with Section 2A, unless noted otherwise on the site drawings. The site areas shall be graded smooth and topsoil added to match the original terrain, unless otherwise specified.

2E.3 REPLACEMENT OF SURFACING AGGREGATE AND PAVEMENT. For replacement of surfacing aggregate and pavement removed for trenching operations, see Paragraph 2A.9.d.iv. above.

2E.4 SPECIAL SURFACING

a. General. If required on the drawings, surfacing for MALSR stations, or PAPI light bar plots, and all other small surfacing areas within 300 feet of runway and taxiway edges, shall be the material placed as required below. Special surfacing requirements will preclude displacement onto aircraft operating surfaces.

b. Material and Installation. Crushed rock or crushed stone surfacing at light unit locations shall be 6 inches deep and centered on the units. Material shall be 1 1/2 to 2 inches nominal size washed crushed rock. No substitutions will be accepted. Rock shall be tamped as tightly as material permits. Finished surface shall be flush with existing surrounding grade.

DIVISION 3 – CONCRETE

SECTION 3A

CONCRETE FORMWORK AND REINFORCEMENT

3A.1 DESCRIPTION OF WORK. Extent of work is indicated on the drawings and by the requirements of this section.

3A.2 CONCRETE FORMWORK

a. Design of Forms. Forms shall conform to shapes, lines, and dimensions of the members shown on the plans, and shall be sufficiently tight to prevent leakage of mortar. They shall be properly tied together so as to maintain position and shape.

b. Form Removal. Forms shall not be loosened or removed…