Attach_05_Fence Spec (No Barb Wire_Rev1).pdf

108 CES DATE Page 1 of 5 Project: ##-#### Project Name

1. SECTION I – SPECIFICATION FOR CHAIN LINK FENCE

1.1. PROJECT TASK LIST

1.1.1. The following is a list of the major tasks included in this SOW:

Section 1.2.1. Site Investigation Section 1.2.2. General Section 1.2.3. Products Section 1.2.4. Execution Section 1.2.5. Site Cleanup

1.2. EXPANDED DESCRIPTION OF PROJECT TASK LIST

1.2.1. Site Investigation: All dimensions within this scope of work and on any attachments are estimates. The Contractor shall field verify all measurements and configurations prior to start of work. If the site is insufficient in any way, mitigation of these deficiencies shall be included in the Contractor’s proposal.

1.2.2. General: The Contractor shall submit complete fence installation drawings for review and approval by the Government. Drawing details shall include, but are not limited to: Site plan showing layout of fence and gate locations with dimensions, elevations of fence and gates, details of attachments and footings.

1.2.3. Products:

1.2.3.1 Fencing Fabric: Provide fabric consisting of No. 9-gauge wires woven into a 2 inch diamond mesh, conforming to ASTM A392 Zinc-coated steel fabric. Set fabric height at 7’.

1.2.3.1.1. Zinc Coating: Provide hot-dip galvanized fabric conforming to ASTM A392 Class 1- (1.2 oz/ft2).

1.2.3.1.2. Top and Bottom Selvages: Provide twisted and barbed top selvage and knuckled bottom selvage.

1.2.3.2 Fence Framework: Provide round steel pipe conforming to ASTM F1043 Group IA Table 3 Heavy Industrial Fence Framework, schedule 40 galvanized pipe per

ASTM F1083.

1.2.3.2.1. Zinc Coating: Exterior & Interior: Type A

1.2.3.2.2. Grade: Regular grade

1.2.3.3 Posts and Braces:

1.2.3.3.1. Line Posts: Minimum 2.375 inch O.D. pipe. Post spacing shall conform to the recommended guidelines as set forth in the CLFMI “Wind Load Guide for the Selection of Line Post Spacing and Size”, not to exceed 10’.

1.2.3.3.2. End, Corner & Pull Posts: Minimum one size larger in O.D. than line posts.

1.2.3.3.3. Top, Brace, Bottom and Intermediate Rails: Minimum 1.660 inch O.D. pipe.

108 CES 25 Aug 2011 Page 2 of 5 Project: 11-2012 Replace Vehicle Entry Gates & Fence

1.2.3.3.4. Gate Posts: Provide gate posts as required by manufacturer for the gate type specified.

1.2.3.4 Accessories: Provide the following accessories conforming to ASTM F626.

Ferrous accessories shall be zinc coated. Match color coating of fittings to color coating of fence fabric. Minimum zinc coating shall be 1.2 oz/ft2.

1.2.3.4.1. Tension Wire: Provide 7 gauge Type II galvanized steel marcelled tension wire in accordance with ASTM A824.

1.2.3.4.2. Terminal Post Caps, Line Post Loop Tops, Rail & Brace Ends, Boulevard Clamps, Rail Sleeves: Pressed steel galvanized after fabrication in accordance with manufacturer’s standard accessories.

1.2.3.4.3. Tension and Brace Bands: Pressed steel minimum thickness of 12 gauge and minimum width of ¾”.

1.2.3.4.4. Truss Rod Assembly: 3/8” diameter steel truss rod with a pressed steel tightener capable of withstanding a tension of 2,000 lbs.

1.2.3.4.5. Tension Bars: Galvanized steel one-piece length 2” less than the fabric height. Minimum cross section of 3/16” x ¾”.

1.2.3.4.6. Tie Wire and Hog Rings: 9 gauge steel tie wire for attaching fabric to rails, braces and posts.

1.2.3.4.7. Galvanizing Repair Material: Cold applied zinc rich paint conforming to

ASTM A780/A780M.

1.2.3.5 Concrete: ASTMC94/C94M, using ¾ inch maximum size aggregate and having a minimum compressive strength of 3000psi at 28 days. Grout shall consist of one part Portland cement to three parts clean, well graded sand and the minimum amount of water to produce a workable mix.

1.2.3.6 Cantilever Slide Gates: Provide a Structural Cantilever Slide Gate, manufactured by Tymetal Corp., 2549 State Route 40, Greenwich, NY 12834; 1-1800-328- 4283, or approved equal. Gate shall be in compliance with ASTM F2200. Gate to be mill finish aluminum. All welds shall conform to the AWS D1.2 structural welding code. All individual welders shall be certified to AWS D1.2 welding code.

1.2.3.7 Gate Operator: Provide a Vehicular Slide Gate Operator TYM-2000, manufactured by Tymetal Corp, or approved equal.

1.2.3.8 Digital Keypad: Provide a digital keypad and all associated mounting hardware and wiring for gate entry. Model ADV-100M, manufactured by Tymetal Corp, or approved equal. Include option for personnel, without a vehicle, to be able to open the gate from within the enclosed area.

1.2.3.9 Radio Receiver/Transmitter: Provide a wireless radio receiver and transmitter and all associated hardware for gate entry. Model R3028 Radio Receiver and Model R4120 Radio Transmitter, manufactured by Tymetal Corp, or approved equal.

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Include option for personnel, without a vehicle or transmitter, to be able to open the gate from within the enclosed area.

1.2.3.10 Controlled Entry - Free Exit/Safety Loop: Contractor shall install a free exit/safety loop at each gate exit which shall open the gate upon vehicle exit. The safety loop shall also prevent the gate from closing on a vehicle while exiting.

1.2.4. Execution

1.2.4.1 Excavation: Provide excavation for post footings which are drilled in virgin or compacted soil, of minimum sizes as determined by designer. Space footings for line posts 10’ on center maximum or as determined by designer. Set bottom of each post not less than 36 inches below finished grade.

1.2.4.2 Setting Posts: Remove loose and foreign materials from holes and the soil moistened prior to placing concrete. Set posts plumb in accordance with ASTM F567. Provide tops of footings that are trowel finished and sloped or domed to shed water away from posts. Keep concrete moist for a minimum 7 days after placement or cure with a membrane curing compound. Placement of tension wire, fabric, etc. shall not occur until the concrete has attained its full design strength.

1.2.4.3 Top Rails: Not Used

1.2.4.4 Brace Assembly: Provide bracing assemblies at end and gate posts and at both sides of corner and pull posts. The horizontal brace rail and diagonal truss rod shall be installed in accordance with ASTM F567.

1.2.4.5 Tension Wire: Install tension wire 4” up from bottom of the fabric. Fences without top rails shall have a tension wire installed 4” down from the top. Install tension wire by weaving through the fabric and tying to each post with tie wire.

1.2.4.6 Fabric Installation: Provide fabric in single lengths between stretch bars with bottom barbs placed approximately 1-1/2 inches above the ground line. Pull fabric taut and attach to terminal posts by threading the tension bar through the fabric. Secure the tension bar to the terminal post with tension bands and 5/16” carriage bolts spaced no greater than 12” O.C. Secure fabric to line posts with tie wires spaced no greater than 12” O.C. Excess wire shall be cut off and bent over to prevent injury.

1.2.4.7 Gate Installation:

1.2.4.7.1. Cantilever Slide Gate: Install in accordance with manufacturer’s installation instructions. Submit (2) copies of operating and maintenance instructions and warranty letter.

1.2.4.8 Fasteners: Install nuts for tension bands and hardware on the side of the fence opposite the fabric side. Peen ends of bolts to prevent removal of nuts.

1.2.4.9 Zinc Coating Repair: Clean and repair galvanized surfaces damaged by welding or abrasion, and cut ends of fabric or other cut sections with specified galvanizing repair material applied in conformance with the manufacturer’s instructions.

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1.2.5. Site Cleanup: The Contractor is responsible for any cleanup and repair required to restore site to preconstruction condition or any improved conditions called for in this SOW. Additionally, the site must be clear of all debris at the end of each working day.

1.3. SUBMITTALS: All materials and articles requiring approval shall be submitted by the Contractor using the AF Form 3000. Any material used without or before Government approval is subject to removal, at no additional cost to the Government. The Contractor shall submit material samples, design drawings, and related calculations to the CO for approval a minimum of 5 calendar days prior to procurement and placement of that particular material and construction respectively. This is to preclude approval of a completed design package preceding any construction placement thereby completing delivery orders expeditiously. Upon review by the Government, the submittal along with any comments will be returned to the Contractor within 5 calendar days. If required, the Contractor shall modify the submittal per Government’s comments and resubmit within 5 calendar days. Upon final approval, the Contractor shall commence with the procurement and construction accordingly. The Contractor shall submit the following to the Government for review and approval prior to performing the associated work:

1.3.1. AF Form 3064 or similar schedule that includes minimal milestones detailing various stages of construction and phasing, lead time of new materials and installation. Weekly updates shall be provided to CO. This schedule must be submitted before any work begins.

1.3.2. The Contractor shall submit, before final payment, a complete set of As-built drawings including but not limited to: site layout and construction details, civil, mechanical, electrical and architectural drawings. The Contractor shall provide one (1) compact disc containing As-built drawings in AutoCAD (.dwg) format.

1.3.3. Notification of any Government property the Contractor plans to move or relocate. The Government may elect to move these items in lieu of the Contractor.

1.3.4. Product Data Sheets. All products being submitted for approval should include a technical data sheet. In the submittal it must be clear which product will be used if more than one product is shown on the page. Do NOT submit entire photocopied catalog unless every page is relevant to the product being considered. The Government may require physical material samples of some items at no additional cost to the Government.

1.4. MILESTONE INSPECTIONS

1.4.1. The Contractor shall abide by the following schedule of inspections by the BCE representative. The Contractor shall be responsible for notifying the CO when work is ready to be inspected at each milestone noted below. Also, the CO or BCE representative may inspect any work at any time. Inspections by the Government do not in any way absolve the Contractor from his obligation to provide materials and construction free from defects and in accordance with the required specifications.

1.4.1.1 Demolition inspection: To be accomplished once the demolition is complete. This inspection will validate that the proper areas have been demolished.

1.4.1.2 Post hole inspection: To be performed following the excavation for new post holes and prior to the placement of any concrete. This inspection will validate hole diameter, hole depth and post spacings.

1.4.1.3 Concrete inspection: To be performed once any concrete pads are complete and cured.

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1.4.1.4 Asphalt Subbase inspection: To be performed prior to laying any new asphalt.

1.4.1.5 Pre-Final Inspection: To be performed when the Contractor has completed/installed all fence and gate components.

1.4.1.6 Final Inspection: To be performed after the Contractor has resolved all punchlist items identified during the pre-final inspection.

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