Attachment_2_Gate_Specifications_20190625.docx

USDA Forest Service National Forests in North Carolina Pisgah National Forest Pisgah Ranger District

WORK CENTER AUTOMATIC GATE INSTALLTION

12455019R0020 Attachment 2 Specs Automatic Gate Installation Pisgah RD 11 | Page

01010 - Summary of Work

A. General I. The intent of this contract is to provide the specified improvements to the Pisgah Work Center site in accordance with the drawings, specifications, and other contract provisions of this contract. Work shall include but not be limited to the following:

a. Remove and dispose of existing gate

b. Furnish and install new aluminum gate

c. Furnish and install new automatic slide gate operator, digital keypad and stand, photo eyes, loop detector, all electrical wiring, and related appurtenances for the complete installation and operation of the new gate.

B. Location and Protection of Existing Underground Utilities

1. It shall be the responsibility of the contractor to locate existing utilities and to maintain service. All damage to existing utilities caused by the Contractor shall be repaired immediately at the Contractor's expense.

01300 - Submittals A. Submittals as required in individual sections shall be submitted to the Contracting Officer (CO) by the Contractor.

B. The Contractor shall be required to furnish submittals on the following items:

1. Gate driver

2. Gate

3. Keypad / Fob Operator

4. Vehicle Detection Loop

5. Chain Link Fence

6. Conduit

7. Any other electrical equipment Any other mechanical equipment C.Design modifications to accommodate these items will be the responsibility of the Contractor and no additional compensation shall be allowed for those modifications. Submittals shall be made within fifteen (15) days prior to commencing any work that relates to the respective submittal. Submittals shall include the following:

8. Product name and model number

9. Manufacturer

10. Product description

11. Technical data

12. Warranty

01570 - Traffic Regulations

A. Contractor shall coordinate with the District Ranger on access through the gate area during construction operations.

01635 - Protection of Adjacent Areas

A. The Contractor shall be responsible for protecting from damage all adjacent areas and existing improvements around or near the project site. All damage to areas caused by construction activities or equipment shall be immediately reported to the CO. The Contractor shall be responsible for repairing all damaged areas as directed by the Contracting Officer Representative (COR).

01710 - Clean Up

A. The Contractor shall at all times keep the construction areas, including storage areas used by the Contractor, free from accumulations of waste material or rubbish on a daily basis and, prior to the completion of the work, remove any rubbish and all tools, equipment, and materials not the property of the Government from these premises.

DIVISION 2 - SITE WORK

02070 - Selective Demolition

A. General

1. This section covers the selective demolition of asphalt as shown on the drawings.

B. Products

1. None

C. Execution

1. The minimum width of asphalt pavement shall be cut to meet the requirements for trenching and for placement of conduit. Cuts shall be neat and straight.

2. All material designated to be removed shall be disposed of legally off of the project site and government land.

02221 - Trenching, Backfilling, and Compacting

A. General

I. Work included in this section covers all trenching and backfilling of all trenches.

B. Products

1. None

C. Execution

1. The trenches receiving the pipe shall be the minimum width possible.

2. The depth of all trenches shall be in accordance with manufacturer's recommendations and the NEC.

3. The trench bottom shall be raked smooth and compacted to form proper bed for pipe and to prevent settlement at the bottom of the trench.

4. Contractor shall remove by pumping, bailing, or draining any water which may accumulate or be found in trenches and other excavation made under this contract and shall form all dams, flumes or other works necessary to keep them entirely clear of water while the utility lines are being constructed.

5. Trench backfilling and compacting

a. All trenches shall be backfilled as soon as possible after wire is installed.

b. Trench backfilling shall be carefully performed so that it does not cause movement of the pipe within the trench.

c. Backfill shall be deposited carefully and compacted on both sides of the pipe to avoid damaging pipe.

d. The top two inches of all trenches shall be backfilled with the same material that is adjacent to the trench.

e. Backfilling shall not be performed on any section without prior approval of the COR.

f. All trenches shall be compacted to the density of the adjacent material.

02612 - Asphalt Paving

1. This section includes the cutting of the existing asphalt to install electric lines and loop detectors as required in this contract and the necessary patching to replace the asphalt.

B. Products

1. Cold Asphalt Mix shall conform to ASTM D 4215.

C. Execution

1. All cutting of the existing pavement shall be performed with a mechanical saw. Cuts shall be made perpendicular and/or parallel to the centerline.

2. The bituminous mixture or coatings shall not be placed when weather conditions prevent the proper handling or finishing, when underlying base course is frozen, when raining, when the average underlying surface . temperatures are less than 45 degrees Fahrenheit, or when the atmospheric temperature in the shade is less than 50 degrees Fahrenheit.

3. Mixture may be placed and finished using hand tools.

4. Material trimmed from the edges and any other discarded bituminous mixture shall be removed from the roadway and disposed of by the Contractor off of government land.

02821 - Fences and Gates

1. This section includes the furnishing and installing of the aluminum gate, slide gate motor operator, loop detector, photo eyes, key pad and stand and replacement fencing.

2. Gate Operation shall be as follows:

a. Keypad on the outside of the fence shall open and close the gate. The gate shall remain in the open position for variable length of time and shall close unless photo eye senses object obstructing gate. Length of time gate is open and gate speed shall be variable by gate’s operators.

b. The photo eyes shall be installed for safety and protection of entrapment and shall stop or reverse gate when infrared beam is broken.

c. Loop detectors shall be installed for free exit and reversing entry.

B. Products

1. Aluminum gate shall be made of tubular or channel aluminum and cross bracing with standard chain link mesh. Three (3) strands of barbed wire shall be installed on top of the gate. Submittal shall demonstrate structural capacity of gate members to support the dynamic loads that the gate will be subject to under normal operations. Rollers, wheels and other related gate parts shall be furnished to provide a complete operational gate. Gate shall be a minimum of 6 feet high and provide an opening and closing distance of 32 feet.

2. Automatic slide gate operator shall be OSCO model BLSL 2250 chain drive slide gate operator with a low voltage surge protector, photo beam detector, cold weather package, and black cover, or equal.

3. Loop detector and loops shall be as manufactured by EMX, or equal.

4. Digital keypad shall be American Access Systems model PROX 2000 II, HID Stand-alone proximity card reader with keypad, or equal. Keypad shall be post mounted 50" from ground level to the bottom of the keypad. Contractor shall furnish and install two (2) 3" diameter steel posts, filled with concrete, painted safety yellow in front of the keypad to protect the keypad from damage.

5. Barbed Wire:

a. Galvanized barbed wire shall meet the requirements of ASTM A 121. Aluminum coated barbed wire shall meet the requirements of ASTM A 585, with Type I (Aluminum Coated) or Type II (Aluminum Alloy) barbs at the option of the manufacturer.

6. Chain Link Fence and the required fittings and hardware shall meet the requirements of AASHTO M 181. Galvanized coiled spring steel tension wire shall be 7 gauges, meeting the requirements of ASTM A 641, hard temper with Class 3 coating.

7. Steel posts for line-type fencing shall be manufactured in accordance with ASTM A 702 and galvanized in accordance with AASHTO M 111 (ASTM A 123), except that tubular steel posts shall be galvanized in accordance with ASTM A 120. Fittings, hardware, and other appurtenances shall be galvanized in accordance with ASTM A 120, by current standard practice, and be of standard commercial grade. Weathering steel posts shall meet the requirements of AASHTO M 222.

8. Aluminum alloy posts shall meet the requirements of AASHTO M 181.

9. Hardware & Structural Steel:

1). Machine and carriage bolts, drift pins, and dowels shall meet the requirements of ASTM A 307. All hardware shall be galvanized in accordance with AASHTO M 232.

2). Bolts shall have square or hexagonal heads and nuts. Nails shall be cut or round nails of standard form. Spikes shall be cut, round, or boat, as SHOWN ON THE DRAWINGS.

3). Washers shall be malleable iron castings. Plain or cut washers shall be American Standard Plain Washers.

10. Cement shall meet the requirements of the following specifications:

1). Portland cement: AASHTO M 85 2). The cement shall be stored and protected against dampness. Cement that for any reason has become partially set or that contains lumps of caked cement will be rejected. Cement salvaged from discarded or used bags shall not be used.

3). Aggregate shall meet the requirements of AASHTO M 80 and M 6. Coarse aggregate size shall be as SHOWN ON THE DRAWINGS.

C. Execution

1. Installation of gate, gate operator, and accessories shall be as shown on the drawings and in accordance with the manufacturer's instructions.

2. Contractor shall increase height of mounting pads to meet height requirements and level as recommended by the manufacturer.

3. Contractor shall furnish and install all posts and mounting brackets required for the complete installation of the photo eyes and loop detectors.

4. 3” Diameter Steel posts installed at the key pad shall be 6' long and extend 48” above ground. Posts shall be filled with concrete and rounded off. Entire post and top shall be painted safety "Yellow".

5. Contractor shall instruct COR and district staff on the operation and maintenance of new gate system.

6. Fencing

a. Where breaks in a run of fencing are required, or at intersections with existing fences, post spacing shall be adjusted to meet the requirements for the type of closure.

b. When posts, braces, or anchors are to be embedded in concrete, temporary guys or braces shall be installed as required to hold the posts in proper position until the concrete has set. No materials shall be installed on posts or strain placed on guys and bracing set in concrete until 7 days have elapsed from the time the concrete was placed.

c. All posts shall be set vertically and to the grade and alignment SHOWN ON THE DRAWINGS. Tops of posts shall not be cut unless approved by the CO.

1). d. Wire or fencing shall be stretched taut and firmly attached to the posts and braces as SHOWN ON THE DRAWINGS.

2). e. At each location where an electric line crosses a fence containing metal, grounding of the fencing shall be accomplished in accordance with the following: A galvanized or copper-coated steel grounding rod 8 feet long with a minimum diameter of 1/2 inch shall be installed directly below the point of crossing. The rod shall be driven vertically until the top is 6 inches below the ground surface. A Number 6 solid copper conductor or equivalent shall be used to connect each metal fence element to the grounding rod. The connections shall be either brazed or fastened with noncorrosive clamps approved by the CO.

3). f. The bottom of the fence fabric shall generally follow the contour of the ground. Grading shall be performed where necessary to provide a neat appearance. Where abrupt changes in the ground profile make it impractical to maintain the specified ground clearance, longer posts may be used and multiple strands of barbed wire stretched thereon. The vertical spacing between strands of barbed wire shall be 6 inches unless otherwise SHOWN ON THE DRAWINGS. At grade depressions, where stresses tend to pull posts from the ground, sag bracing shall be installed as SHOWN ON THE DRAWINGS.

DIVISION 3 - CONCRETE

03100 - Concrete Formwork

A. General

1. This section covers all formwork and related accessories.

B. Products

1. Forms shall be wood, plywood, hardboard or metal and shall be approved by the COR. Formwork shall meet requirements of ACI 347.

C. Execution

1. Forms shall be built tight, in proper alignment and adequate to resist the stresses of concrete placement without deformation.

2. Forms shall be constructed to produce the required concrete surface.

03200 - Concrete Reinforcement

A. General

1. This section covers all concrete reinforcement and its accessories.

B. Products

1. Reinforcing steel shall comply with ASTM Designation A615, intermediate grade 40.

2. Reinforcing mesh shall comply with ASTM Designation A-185 and shall be gage and mesh as indicated.

C. Execution

1. Reinforcement bars and mesh shall conform to the sizes and spacing as shown.

2. Anchorage and accessories shall be accurately placed as shown and held rigidly in position during placing of concrete.

03300 - Cast-in-Place Concrete

A. General

I. This section covers cast-in-place concrete, including curing and finishing of concrete.

II. Cement shall meet the requirements of the following specifications:

a. Portland cement: AASHTO M 85 The cement shall be stored and protected against dampness. Cement that for any reason has become partially set or that contains lumps of caked cement will be rejected. Cement salvaged from discarded or used bags shall not be used.

b. Aggregate shall meet the requirements of AASHTO M 80 and M 6. Coarse aggregate size shall be as SHOWN ON THE DRAWINGS.

B. Products

I. "Ready-Mixed Concrete" or premixed bag concrete may be used. Minimum strength shall be 2,500 psi.

C. Execution

I. All concrete shall be placed within 1-1/2 hours from the time of mixing.

a. No concrete shall be placed after it has started its initial set.

b. No concrete with a temperature above 90 degrees Fahrenheit shall be placed.

2. Finishing

a. Concrete shall be struck to proper grade, float troweled, and heavily broom finished.

b. At all exposed, formed surfaces, remove all ties fill all fotm tie holes and imperfections; i.e., "honeycombing", with dry cement mortar, remove all lines, and then "sack" or finish to match adjacent surfaces.

3. Concrete shall be protected against rapid drying and kept moist for seven days by covering with liquid membrane curing compounds.

DIVISION 16 - ELECTRICAL

Section 16010 - General Provision

A. General I. This section covers the complete electrical system as shown on the drawings or specified herein.

2. Codes and Standards

a. All work materials shall be in full accordance with the latest requirements of the National Electric Code (NEC), National Fire Protection Association (NFPA), and other applicable State and local codes and regulations. Nothing in these drawings and specifications is to be construed to permit work not conforming to these codes.

b. Wherever the specifications call for or describe materials or construction of a better quality or larger size than are required by the above rules and regulations, the provisions of these specifications shall take precedence.

c. Do we want to require that work be performed by a licensed electrician?

3. Adjusting and Testing

a. All equipment furnished under this contract, including electrical equipment furnished under other sections, shall be tested for proper operation by contractor the contractor under this section. Protective devices shall be examined for proper rating and application and adjusted as necessary. Completed wiring systems shall be free of short circuits.

Section 16402 - Underground Electrical Service A. General

1. Work under this section includes the complete installation of the power supply from existing primary sources underground to the automatic gate operator as shown on the drawings and as further specified herein.

2. Provide materials and installation complying with the following codes and standards:

a. NFPA 70, , current edition

b. All products shall be UL listed

c. Applicable State and local codes

d. Local power company requirements

B. Products

1. Provide conductors of copper unless otherwise specified on the drawings or approved by the engineer in writing. Wire shall be the type and size as recommended by the manufacturer.

2. Provide conduit where required of one of the following types:

a. Galvanized rigid conduit

b. Intermediate grade galvanized conduit

c. Rigid non-metallic conduit, Schedule 40 PVC or Schedule 80 PVC, UL listed for direct burial.

3. Furnish and install circuit breaker in Computer panel box for gate operator circuit. Circuit breaker shall be of the size and type necessary for the operation of the gate and be compatible with the panel box manufacture.

4. Provide location tape for buried electrical service. Plastic identification tape shall be "Dectotape" or approved equal. All buried utilities shall be identified with appropriate tape as shown on the drawings.

C. Execution

1. Install underground service conductors to the building as required to provide service. Coordinate with the local power company as required.

2. Install all conduits and conductors as shown on the drawings or as otherwise required by the local power company and approved by the engineer. Conduits run exposed shall be rigid or intermediate grade metal conduit. Conduits underground may be PVC at the contractor's option.

3. Unless otherwise shown, underground wire specified shall have a minimum of 18" of cover.

4. Install new circuit breaker, wiring, conduit, and connections in accordance with the NEC.

5. Include proper grounding of the system.