2011 Fencing IDIQ Final.pdf

BASE FENCE

INDEFINITE DELIVERY INDEFINITE QUANTITY

STATEMENT OF WORK

FOR

BARKSDALE AIR FORCE BASE

TABLE OF CONTENTS

SECTION 1.0, GENERAL REQUIREMENTS……………………………….…………………5

1.1 Description of Work

1.2 Government Furnished Utilities

1.3 Government Furnished Equipment and Materials

1.4 Clean-Up and Restoration

1.5 Barksdale Air Force Base Proper

1.5.1 Contractor’s Work Hours

1.5.2 Restricted Areas

1.5.3 Permits

1.5.3.1 Welding Permit

1.5.3.2 Work clearance (digging/excavation) Permit

1.6 Contractor Vehicles and Equipment

1.6.1 Contractor Equipment

1.6.2 Excavation Permit

1.6.3 Mobilization Fees

SECTION 2.0, CHAIN LINK FENCE………………………………………….……………..8

2.1 Scope

2.2 Reference Standards

2.3 Materials

2.4 Chain Link Fence Construction

2.5 Personnel Gates

2.6 Frangible Fence

SECTION 3.0, CABLE FENCE/BARRIER…………………………………….…

3.1 Scope

3.2 Reference Standards

3.3 Products

3.4 Fabrication

3.5 Cable Fence Barrier Construction

3.6 Finish

SECTION 4.0 CONCRETE……………………………………………

4.1 General

4.2 Materials

4.3 Construction Requirements

SECTION 5.0 WOOD AND COMPOSITE WOOD FENCING…………………………….18

5.1 Scope

APPENDIX

DETAILS AND DRAWINGS

Perimeter Security Fence Detail, Non Frangible………………………………………………...19

Perimeter Security Fence Detail, Frangible ……………………………………………………..20 Wood Fence Detail…………………………………………………………………………….…21

CABLE FENCE DETAILS

General Notes…………………………………….………………………………………………22

Cable Barrier Post Details ……………………………………………………………………25-38

Typical Approach and Terminal Sections…………………………………………...………..25

Typical Approach and Terminal Sections Elevation of Typical Intermediate Anchorage Section……………..…………….………..…26

Cable Splice Details Steel Turnbuckle Cable End Assembly…………………………...………………….…… Hook Bolt Detail Typical Wedge Detail for all Cable Splices…………………………………………….…

Reflector Details…………………………………………………………………….……….29

Spring Cable End Assembly Typical Post Details………………………………………………………………….……

Anchor Unit Detail Left Hand Anchor Unit Detail Left Top View………………………………………………………….31

Anchor Unit and Rebar Installation Detail Washer Table and Detail…………………………………………………………………….32

Anchor Unit Detail Top View Right Hand Cable End Assembly to Anchor Angle Detail……………………………………………….33

Anchor Angle Detail Bent Plate……………………………………………………………..34

Anchor Angle Detail Bent Plate……………………………………………………………..35

Anchor Post Detail Anchor Post Base Detail Slip Impact Base Plate Detail………………………………………………………………..36

Anchor Post Base Detail Keeper Plate Front View of Top of Post, Side View of Top of Post……………………………………….37

Anchor Angle Details Anchor Angle Details External Stiffener Anchor Angle Details Internal Stiffener……………………………………………………...38

Bid Schedule…………………………………………………………………………………….39

BASE FENCE INDEFINITE DELIVERY AND INDEFINITE

QUANTITY

SECTION 1.0 - GENERAL REQUIREMENTS

1.0 GENERAL REQUIREMENTS: The contractor shall provide all management, labor, materials, and equipment necessary to provide general fence construction to include: demolition, earthwork, new fence construction, fence repair, fence replacement, fence removal and all other work associated with fence construction to be performed at Barksdale Air Force Base, Louisiana.

If any conflict arises between the drawings and the specifications, the specifications shall govern.

1.1 DESCRIPTION OF WORK: Work includes installation, repair, correction, and removal of fencing, cable beam barrier fence to include all posts, and various gates on Barksdale AFB.

1.2 GOVERNMENT-FURNISHED UTILITIES: Potable water will be furnished by the government, any other utilities required will be on a case by case basis.

1.3 GOVERNMENT-FURNISHED EQUIPMENT AND MATERIALS: The government will exercise the right to provide any materials it deems necessary.

1.4 CLEAN-UP AND RESTORATION: This shall consist of cleanup on a daily basis to keep the work site free from debris and waste material resulting from in-progress work and clean-up required at the end of the project. Cleaning shall include removal of debris, removal of temporary protection and labels not required to remain, clean finishes free of dust, stains, films and other foreign substances, remove waste, and surplus materials from site. Clean ground, police area to remove all garbage (i.e., pop cans, cigarette butts, etc.) created or left by workmen;

remove stains, spills, and foreign substances from paved areas and sweep clean. All materials removed, all surplus material and debris, unless designated for salvage by the government, shall become the property of the Contractor and shall be removed and disposed of by the Contractor off-site at the expense of the Contractor and in accordance with Federal and State laws and regulations, local ordinances, and agreements with landowners. Restore and repair site turf grounds damaged and/or excavated during construction to include topsoil replacement and seeding as required to produce level stand of grass to match adjacent undamaged/un-repaired stand of grass in density and height. . The following formula will be used to establish the clean up and restoration fee; it is based on line item material costs.

Cleanup and restoration formula

• $0 - $10,000 of line item materials add 5%

• The remaining amount over $10,000 add 1%

Example: A Fence project with $40,000 in line item materials ($10,000 + 5%) + ($30,000 + 1%) = $800

Only one (1) clean-up and restoration fee is allowed per fence project.

1.5 BARKSDALE AIR FORCE BASE PROPER:

1.5.1 CONTRACTOR'S WORK HOURS: Working hours for the Contractor will normally be between the hours of 7:30 a.m. and 4:30 p.m., excluding Saturdays, Sundays, and Federal holidays. The contractor can request to modify the work hours by putting it in writing and sending to the base contracting office two days prior to the requested deviation for consideration.

These requests will be looked at on a case by case basis, and cross referenced with mission requirements. If the contractor would like to work on weekend, requests can also be made two days in advance. Last minute requests will be considered, but not necessarily granted.

1.5.2 RESTRICTED AREAS. When work is required in Restricted Areas, the Contractor shall conform to all base security requirements. Workers shall have an escort with them at all times, unless they are cleared with their own line badges. The Contractor shall anticipate some delays at the start and at the end of each day’s operation. When work is required in Restricted Areas, the Contractor shall provide information to the government to process an Entry Authorization Listing (EAL) that will be used by Security Forces personnel to authorize contractor employees into the Restricted Areas. Listed Contractor employees gaining access to the site must have photo identification. Contractor Personnel without proper identification or not listed on the EAL shall not be allowed into the restricted area. See appendix 1 for work item explanation on processing an Entry Authorization Listing.

1.5.3 PERMITS

1.5.3.1 Welding: 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, prior to beginning such work. Fire department can be reached at PH # 456-2642. During such work, a fully charged and operable fire extinguisher, appropriate for the task, shall be provided by the Contractor. See appendix 1 for work item explanation on processing a welding permit.

1.5.3.2 Work Clearance Request

1.5.3.2.1 Before any excavation, alteration, or other construction work is begun, the Contractor shall obtain and fully process an AF Form 103, Base Civil Engineering Work Clearance Request.

The form requires extensive coordination with several base agencies, including furnishing all locations, detailed information, and sketches regarding any proposed excavation(s). See appendix 1 for work item explanation on processing a work clearance request.

1.5.3.2.2 Protection of Existing Utilities: The Contractor shall safeguard and protect from damage all utilities encountered or uncovered during digging, excavation, and backfilling.

Damage to utilities by the contractor on correctly located utilities by Barksdale AFB personnel or utility locating companies coordinated by the contractor will be the responsibility of the contractor. Damage to utilities by the contractor on incorrectly located utilities by utility locating companies coordinated by the contractor will be the responsibility of the contractor. Damage to utilities by the contractor on incorrectly located utilities located by BAFB personnel will be the responsibility of the government.

1.6 CONTRACTOR VEHICLES AND EQUIPMENT

1.6.1 No equipment may remain on site or within 25 feet of the outside of any security fence.

The Contractor must make arrangements with private landowners if land outside the Air Force right-of-way is utilized. Contractor materials/equipment may be left on site at the end of the workday provided an acceptable arrangement has been agreed upon by the site Facility Manager, the Contractor and the designated representative.

1.6.2 EXCAVATION PERMIT. For fence work the government representative provides the excavation permit and is responsible for utility line locates. Prior to any excavation, an approved excavation permit shall be obtained by the Contracting Officer’s designated representative.

1.6.2.1 Excavation near Utility Lines. Existing utility lines, both government-owned and leased, shall be protected from damage during excavation and backfilling. The contractor shall be held liable for damage to lines that are within five (5) feet of where they are shown on the excavation permit drawing and/or contract drawings. Those lines damaged shall be repaired to original or better condition. Lines damaged that are five (5) feet or greater away from where they are indicated on excavation permit drawings and/or contract drawings shall be the responsibility of the government. Mechanical digging shall not commence, within five(5) feet of buried utility lines, until locations of those lines have been established and properly verified by hand digging.

1.6.2.2 Excavation near Communication Cables. Digging within five (5) feet of communication cables shall be performed by hand until the cable is exposed. A representative from the Base Communications Squadron must be present. The cable route must be marked by the Contractor prior to excavation in the area. The Contractor shall be held responsible for any damage to the cable by excavation procedures. Once the cable is exposed, mechanical excavation may be used if there is not a chance of damage occurring to the cable.

1.6.2.3 Any private buried cable or a line outside the site fence is the responsibility of the Contractor to locate by calling Louisiana ONE-CALL 811. Base Civil Engineering personnel will provide to the Contractor all necessary record drawings to facilitate locating utility lines and underground structures outside the fence. See appendix 2 for work item explanation on utility locates.

1.6.3 MOBILIZATION FEES

1.6.3.1 MOBILIZATION FOR REPAIR OR PROJECT. This shall consist of the Contractor personnel and support vehicles / equipment along with all materials required to perform the work specified to mobilize on site for each fence repair or project. The following formula will be used to establish mobilization fee; it is based on line item material costs. It excludes line items for processing paper work like EAL’s, or AF Form 103 Dig permits.

Mobilization formula

• Add 1% to line item materials

• $50- minimum mobilization fee

Example: A Fence project with $40,000 in line item materials $40,000 + 1% = $ 400 Only one (1) Mobilization for repair or project fee is allowed per project.

END OF SECTION 1.0

SECTION 2.0 – CHAIN LINK FENCE & GATES

2.1 SCOPE. Work in this section covers the replacement, repair, and/or construction of chain link fence and gates to include all pertinent accessories to complete all work.

2.2 REFERENCE STANDARDS:

2.2.1 Federal Specifications (FS)

RR-F-191 General 191/1 Fence Fabric 191/2 Gates 191/3 Rails/Top Posts/Braces 191/4 Accessories FF-N-105 Fasteners

MIL-HDBK-1013/10, Design Guidelines for Security Fencing, Gates, Barriers, and Guard Facilities

2.2.2 American Society for Testing and Materials (ASTM)

ASTM F567 Installation of Chain-Link Fence ASTM A120 Pipe, Steel, Black and Hot-Dipped Zinc-Coated (Galvanized) Welded and

Seamless, for Ordinary Uses ASTM A121 Zinc-Coated (Galvanized) Steel Barbed Wire ASTM A123 Zinc-Coated (Galvanized) Coating on Products Fabricated form Rolled, Pressed and Forged Steel Shapes, Plates, Bars and Strip ASTM A153 Zinc-Coated Steel Chain-Link Fence Fabric ASTM A90 Test for Weight of Coating on Zinc-Coated (Galvanized) Iron or Steel Articles ASTM B429 Aluminum-Alloy Extruded Structural Pipe and Tube ASTM A641 Zinc-Coated (Galvanized) Carbon Steel Wire ASTM D1248 Polyethylene Plastics Molding and Extrusion Materials

2.3 MATERIALS:

2.3.1 All ferrous materials shall be new and galvanized. Imperfectly galvanized materials or materials upon which serious abrasion of the galvanizing occurs shall not be used. All ferrous metal used, unless specified otherwise, shall be hot-dip zinc coated with not less than 1.2 ounces of zinc per square foot.

2.3.2 Fabric. Chain link fabric shall be woven with a nine (9) gauge galvanized steel wire in two

(2) inch mesh. Fabric shall be coated with not less than 1.2 ounces of zinc per square foot and shall meet the requirements of RR-F-191. Top and bottom salvages shall have a twisted and barbed finish.

2.3.3 Posts, Rails, and Braces. Posts, rails and braces for chain link security fence shall be steel pipe and meet the requirements of RR-F-191, Class 1, grade A or B. Galvanized steel pipe shall be continuous span. No sleeves or welded splices are allowed. The minimum requirements for the outside diameter (X) wall thickness in inches are as follows:

a. Line Post 2.375 x 0.130

b. Gate Post (Gate Leaf Less than or Equal to 12’) 4.0 x 0.160

c. Gate Post (Gate Leaf Greater than 12’) 6.625 x 0.160

c. Brace Rail (ang.) 2.375 x 0.130

d. Corner Post 2.875 x 0.160

e. Brace Rail (hor.) 1.660 x 0.111

f. Gate Frame 1.90 x 0.120

g. Temporary Post 2.375 x 0.130

h. Brace Post 2.375 x 0.160

i. Pull Post 2.875 x 0.160

j. End Post 2.875 x 0.160

k. Top/Bottom Rail 1.66 x 0.111

2.3.4 Wire ties shall be a nine (9) gauge zinc-coated galvanized steel wire. Hog rings shall be nine (9) gauge galvanized steel wire. The minimum weight for zinc coated wire ties is 0.8 ounces of zinc per foot of coated surface area. Wire ties shall not fracture when tested as follows: bend wire from which ties are formed through an angle of 180 degrees on mandrel having the same diameter as the wire under test.

2.3.5 Tension wire shall be seven (7) gauge coiled spring wire conforming to RR-F-191 and have a minimum tension strength of 75,000 pounds per square inch.

2.3.5.1 At the discretion of the Government, tension wire may be spliced using crimp type connectors. Use the following or approved equal sleeves and crimping tool. NICOPRESS brand crimping sleeves 7 gauge wire part# FW-5-6, and NICOPRESS brand crimping tool part# 3-56 maybe used for splicing tension wire. Each crimp connector will be installed with a manufacturer approved crimping tool, and crimped the recommended number of times. Two crimping sleeves per lap splice on barbed wire, and three crimping sleeves per tension wire lap splice will be used; see appendix 4 for further information.

2.3.6 Tension bars shall be galvanized steel with a cross-sectional area of not less then 3/16 inch by 3/4 inch, or equivalent. Tension bands shall be galvanized steel and 3/4 inch wide by 1/10 inch thick nominal size.

2.3.7 Tension rods, gate hinges, eye-bolts, J-bolts, nuts, and other fasteners or devices used in fence construction shall be galvanized steel.

2.3.8 Concrete shall meet the requirements of Section 6.0.

2.3.9 Barbed wire shall consist of two twisted strands of 12 ½ gauge line wires with 14 gauge round barbs. All barbs shall be four (4) point with barbs on not more than five (5) inch centers.

Barbed wire outrigger arms shall be single arm for three (3) wire strands. When installed, the barbed wire outrigger arms shall project at an angle of 45 degrees from the plane of the fence line and the outer strand of barbed wire shall be positioned approximately twelve (12) inches horizontally from the fence line. Intermediate strands of barbed wire shall be uniformly spaced between the strand on the end of the support arm and the fence fabric. All outrigger arms shall be fitted with slots for attaching the barbed wire to the support arm. Outrigger arms shall be capable of withstanding a load of 250 pounds applied at the outer strand of barbed wire.

2.3.10 Privacy/Security fencing slats shall be of solid or extruded design that once installed, shall obscure view past the fence it is installed in. Slats shall be pre-cut in lengths to fit all specified fence heights. Slats shall not rot, water stain, chip, crack or break, and shall withstand temperature extremes, detergent, and harsh chemicals. Color of slats to be used shall be chosen by the civil engineer or the civil engineer squadron’s architect. Slat installation shall result in straight, even alignment with both top and bottom of chain link fence material.

2.3.11 Grounding there are 2 types of grounding systems. Repair of grounding system shall be seven (7) strand wire rope with an overall diameter of 1/2 inch. Wire shall conform to ASTM designation A-641, carbon steel, galvanized. Wire shall be enclosed in a polyethylene sheath, conforming to ASTM designation D 124B, Type III, Grade 3, Class B, of 4-mil minimum thickness, free of all air bubbles, breaks, leaks, and non-uniformity in dielectric strength. All connections shall be cad welded and taped. Base side fence grounding will be in accordance with the National Electric Code. Using 3/4” diameter, 10’ long, copper coated steel ground rods, #4 stranded copper wire; utilizing approved clamps for the ground rod and fence post connection.

2.3.12 Temporary Security Fencing: At the discretion of the government, the integrity of the site security fence must be restored by the end of each day’s work. If it is not possible to complete the items being worked, then a temporary security fence shall connect to the existing fence with no openings. Temporary fence shall meet the same standards as permanent fence, except that the animal barrier, when applicable, may be omitted when fabric is set tight against the ground and fence posts with four (4) foot minimum depth into the ground and fifteen (15) foot maximum interval may be used. Every effort shall be made to minimize the length of time temporary fence is utilized.

2.4 CHAIN LINK FENCE CONSTRUCTION/INSTALLATION:

2.4.1 FENCE LINE: The Contracting Officer’s designated representative will mark or identify the items of work to be accomplished at the start of construction at each site. Install fence and accessories in accordance with fence manufacturer’s written installation instructions except as modified herein including the attached fence detail drawings. The finished fence shall conform to the alignment indicated by the Contracting Officer’s representative. All trees(including roots in the way), brush and other debris that might interfere with the installation of the fence shall be removed. The grading and leveling of existing ground by adding or taking away soil, along the fence line for new construction, may be required to keep the distance from the bottom of the fence fabric and the ground to meet the requirement in this statement of work. If material is added, compaction must be performed to 95% modified proctor.

2.4.2 Galvanized metal that has been damaged by torch or by welding, or miscellaneous metal used in repair or modification, shall be cold galvanized in the field. All metal to receive cold galvanizing shall be thoroughly cleaned using a wire brush. Prior to applying any coating, the government inspector will inspect the area that is to be applied with cold galvanizing and approve that the area has been thoroughly cleaned. He will notify the contractor whether or not additional cleaning shall be performed. Once approval is given to proceed with cold galvanizing, a coat of paint consisting of Devcon Z Cold Galvanizing Compound No. 12000 with 95 percent pure zinc in the dried film, or Rust-Oleum No. 2185 Cold Galvanizing Compound containing over 93 percent pure zinc in the dried film, or an approved equal, shall be applied. A coat of aluminum paint as made by Rust-Oleum or an approved equal shall be applied after the cold galvanizing has dried.

2.4.3 POST SPACING: Do not exceed 500 feet on straight runs between braced posts. When any straight line linear fence measurement is greater than 500’, a pull post shall be installed with a brace post on either side. If the linear fence measurement is less than 1000’ then a pull post will be installed at midpoint. Provide line posts spaced equidistantly apart, not exceeding 10 feet on centers. Provide corner or pull posts, with bracing in both directions, for changes in direction of 15 degrees or more, or for abrupt changes in grade.

2.4.4 POST SETTING: Install, remove and replace existing posts as directed. Posts shall be a continuous length with no splices. Ensure proper alignment of new posts. Posts shall be set plumb and sufficiently long so that the top of the fence is approximately level on any given straight run of fence. Holes created by removal of existing posts shall be filled with compacted earth prior to installation of a new post in the same location. Compact earth in lifts not greater than eight (8) inches to at least 95% modified proctor. All posts shall be set into the ground a minimum of three (3) feet. Gate, corner, end, pull, and brace posts shall be set in concrete as indicated in the drawings. Allow concrete to cure a minimum of 72 hours before performing other work on posts. Compact concrete to eliminate voids by tamping or vibrating. Crown top of concrete above grade and trowel outside edge to existing grade for water shed. Under no circumstances will the use of explosives be permitted.

2.4.5 BRACING: All gate, corner, end, and pull posts shall be braced to a brace post with a horizontal brace rail used as a compression member, placed at least 12 inches below the top of the fence. Diagonal steel truss rods (3/8 inch) shall be used as tension members and attached at the bottom of the corner or pull post to the adjacent brace post where the horizontal brace rail terminates. Each 3/8 inch steel truss rod shall be banded to the post and equipped with a turnbuckle or truss tightener with tensile strength equal to the truss rod. All clamps, bands, or other devices used to attach compression members shall be firmly attached to the post by shot nailing, or tack welding to prevent rotation. Any damaged galvanized coating from welding will be repaired in accordance with section 2 para. 2.4.2

2.4.6 TOP AND BOTTOM RAIL: Top rail, where used, shall be supported at each post to form a continuous brace between terminal posts. Where required, sections of top rail shall be joined using sleeves or couplings that allow expansion or contraction of the rail. Bottom rail where used, shall be bolted to double rail ends and double rail ends shall be securely fastened to the posts.

Bolts shall be peened to prevent easy removal. Bottom rail shall be installed before chain link fabric.

2.4.7 TOP AND BOTTOM TENSION WIRES: (installed where top and bottom rail is not required by specific project) shall be installed prior to the installation of chain link fabric and shall be pulled taut and will be free of sag. Place top and bottom tension wires within 8 inches of respective fabric line. At the discretion of the Government tension wire may be spliced using crimp type connectors. See section 2 para. 2.3.5.1 for crimping details. Weave the tension wire through the post caps. Each end and corner post shall have a wire stretching eye bolt.

2.4.8 FABRIC: Chain link fabric shall be attached to end and corner posts with tension-bars and tension-bar bands. Tension bars shall be a continuous length compatible with the height of the fence and shall be threaded through the fabric and attached to the post by tension bands. The tension bar shall engage each link in the fence fabric. Tension bands shall be used for securing chain link fabric at each end, and corner post. Tension bands on posts shall be spaced at twelve

(12) inch intervals or less and located not more than four (4) inches from the top and bottom of the post. Install fabric on opposite side of posts from the area being secured. Install fabric so that the bottom of the fabric is no less than 1 inch and no more than 2 inches above ground level.

Chain link fabric shall be fastened to line posts with nine (9) gauge galvanized steel tie wires with a minimum of two twists at fourteen (14) inch intervals. Tie wire shall encompass two (2) strands of fence fabric. Chain link fabric shall be attached to the top and bottom tension wires and truss rods with nine (9) gauge hog rings at fourteen (14) inch intervals. Chain link fabric shall be attached to the top and bottom rails (where used) with nine (9) gauge galvanized steel tie wires with a minimum of two twists at (24) inch intervals. The Contractor may use an electric drill to tie steel tie wires.

2.4.9 POST TOPS AND OUTRIGGERS: Metal post tops and outriggers shall be installed on security fence posts by shot nailing or spot welding. Repair galvanized coating in accordance with section 2 para. 2.4.2 and cold galvanizing as shown in the drawings and barbed wire shall be installed on the outriggers above fence posts

2.4.9.1 BARBED WIRE. On new installations barbed wire shall be installed in such a manner as to minimize the number of splices required. For repair of barbed wire, lap splices utilizing the following crimping sleeves and crimping tools or an approved equal crimp type connectors designed for barbed wire will be used. NICOPRESS brand barbed wire crimping sleeve part# FT- 4-5 using a NICOPRESS crimping tool part# 64-2345 or FT-2345 will be used for splicing. In both installations each strand of barbed wire will be pulled tight with an appropriate mechanical devise. Two each crimping sleeves per splice will be used per splice; see appendix 4 for further information. Barbed wire will be securely fastened to out riggers as recommended by the manufacturer.

2.4.10 FENCE HEIGHT: Fence height will be measured from ground level to top of the fence fabric or the top strand of barb wire, whichever the project manager designates.

2.4.11 GROUNDING: The type of grounding installed will be location specific. See section 2 para 2.3.11.

2.4.12 SIGNS: All signs or other hardware attached to the existing fence or gates shall be relocated to the new fence or gate and attached in a similar manner. New signs on newly installed fence shall be provided by the Government. Location of signs on newly installed fence shall be coordinated with the Contracting Officer’s Representative before installation. The means for attaching will be by galvanized mechanical fasteners or galvanized wire. Any new perimeter fencing shall have controlled area signs attached at no more than 300’ intervals.

Bottom of the sign shall be 5’ above the surface of the ground underneath it.

2.4.13 GATES: Contractor shall field verify the dimensions required for all new gate openings.

Swinging gates shall be the type indicated on the drawings and shall be hinged to swing through a minimum of ninety (90) degrees from closed to open. The gates shall be complete with two (2) hinges per panel. Frames shall be constructed of tubular members. Gate leaves shall have diagonal truss rods as indicated to provide rigid construction free from sag or twist. All joints between tubular members shall be made by welding or by means of heavy screwed fittings.

Connections shall be rigid. Fabric shall be of the same chain link used on the fence. The fabric shall be attached to the gate frame ends by use of tension bars. The top and bottom of the chain link fabric shall be attached with wire ties at intervals not exceeding fourteen (14) inches on center. The vertical members of gate frames shall extend sufficiently above the top member to carry three (3) strands of barbed wire in alignment with the strands of barbed wire on the fence.

The maximum allowable clearance between the surface of the road and the bottom of the gate is two (2) inches. Double swinging gates at the airbase will be installed utilizing a box slide latch for securing the gate. At LF’s gate panels shall overlap at the center. Overlap gate frame ends by the width of the panel end tubular member. Gates will include a 30” long, 3/8” steel galvanized chain to secure the gates. Cantilever gates will be fabricated using the same fabrication methods listed above for swing gates, specific design criteria is listed in attachment 1.

2.4.14 All old fencing material becomes property of Contractor and shall be removed from site area before a new site can be started.

2.5 PERSONNEL GATES

Where access control is required into a restricted area, turnstile gates are required for controlling pedestrian traffic unless otherwise directed. (see Appendix 3, Attachment A 1-7). Swing gates are a second alternative when turnstile personnel gates are not practical (see Appendix 3, Attachment A1-7). Personnel gates will be designed so that only one person may approach the guard/enter at a time.

2.6 FRANGIBLE FENCE

2.6.1 Frangible fencing shall be constructed in the same manner as chain link fence, except the posts will integrate a “break-away” bottom piece. The V-Loc brand of breakaway apparatus is an approved brand or an approved equal can be utilized.

END OF SECTION 2.0

SECTION 3.0 – CABLE FENCE BARRIER

3.1 SCOPE. Work in this section covers the replacement, repair, and construction of steel cable barrier fence and gates to include all pertinent accessories to complete all work.

3.1.1 WORK INCLUDED:

3.1.1.1 Excavation for steel beam posts and concrete piers. Concrete forming tubes shall be used for all concrete installations; see section 5, para.5.3.2.

3.1.1.2 Fabrication and connection of steel cables with accessories and associated hardware.

3.1.1.3 Construction of Concrete Pier, Metal Beam, and Steel Cable fence barrier systems.

3.2 REFERENCE STANDARDS:

3.2.1 ASTM A36 – Structural Steel.

3.2.2 ASTM A53 – Hot-Dipped, Zinc-Coated Welded and Seamless Steel Pipe.

3.2.3 ASTM A500 – Cold-Formed Welded and Seamless Carbon Steel Structural Tubing.

3.2.4 ASTM A501 – Hot-Formed Welded and Seamless Carbon Steel Structural Tubing.

3.2.5 ASTM A572 – High Strength Low Alloy Columbium-Vanadium Steel of Structural Quality.

3.2.6 AWS D1.1 – Structural Welding Code.

3.2.7 FS TT-P-31 – Paint, Oil: Iron Oxide, Ready Mix, Red and Brown.

3.3 PRODUCTS:

3.3.1 MATERIALS:

3.3.1.1 Structural Steel Members: Shall be tubular in nature ASTM A36.

3.3.1.2 Wire Rope: Wire rope and connecting hardware shall meet AASHTO M-30, Type 1, Class A, 3/4-inch rope. Connecting hardware shall develop the full strength of a single cable (25,000 pounds). Cast steel components shall meet AASHTO M-103.

3.3.1.2.1 Galvanized Spring Assembly. The tension spring assembly shall have a spring constant of 450 psi + 50 pounds per inch, and shall permit a travel of 6 inches + one inch.

3.3.1.2.2 Cable Connections. A swage connection shall be used when connecting cable to hardware.

3.3.1.2.3 Threading. Threads of externally-threaded parts shall be UNC, ANSI B1.1, Class 2A Tolerance. Internally-threaded parts shall meet the dimensional requirements of ASTM A-563.

3.3.1.2.4 Bolts, Nuts, Eye Nuts, and Washers. Bolts shall meet ASTM A-307 and nuts to ASTM A-563, Grade A, or better. Both nuts and bolts shall be galvanized according to AASHTO M-232. Nuts shall be hex or heavy hex type.

3.3.1.2.5 Washers shall be made of steel and shall be galvanized according to AASHTO M-232.

They shall meet the dimensional requirements of ANSI B27.2, Type A plain washer.

3.3.1.2.6 Washer Plates. End and line post washer plates shall meet AASTHO M-183 and shall be galvanized according to AASHTO M-111.

3.3.1.2.7 Lever Load Binder. Load binder shall be forged steel quenched and tempered. It shall have a minimum working load limit of 11,000 lbs, and painted to the same color as steel posts.

3.3.1.2.7.1 Primer: FS TT-P-31, red.

3.4 FABRICATION:

3.4.1 Fabricate fence cables and structural steel members in accordance with AISC Specification and attached drawings.

3.5 CABLE FENCE BARRIER CONSTRUCTION:

3.5.1 Erect structural steel in accordance with AISC Specification.

3.5.2 Construct cable fence barrier as per specific delivery order site layouts and drawing details in Appendix 3, Attachments A 3-1,A 3-2, and A 3-3.

3.5.3 After erection, prime welds, abrasions and surfaces not shop primed/galvanized except surfaces to be in contact with concrete. Use a primer consistent with shop coat.

3.6 FINISH:

3.6.1 Clean, prepare and shop prime structural steel members. Do not prime surfaces to be field welded or in contact with concrete.

3.6.2 Prime and Paint all exposed surface area of installed Posts (Poles) one coat primer and two coats Dark Bronze (Federal Specification Color Standard # 20040).

END OF SECTION 3.0

SECTION 4.0 – CONCRETE

4.1 GENERAL. This item shall consist of either plain or reinforced Portland Cement Concrete, which is composed of coarse aggregate, fine aggregate, Portland cement, water and permitted admixtures. Only approved materials conforming to the requirements of these specifications shall be used in the work. Materials may be subjected to inspection and tested at any time during the progress of their preparation or use. In no case shall the use of pit-run or naturally mixed aggregates be permitted. All fine and coarse aggregates shall be stored separately and kept clean.

4.2 MATERIALS.

4.2.1 CONCRETE: Concrete for footings shall use class “R” concrete according to the 2006 LOUISIANA STANDARD SPECIFICATIONS FOR ROADS AND BRIDGES, Section 901.

Concrete shall have an average 28 day minimal compressive strength.

4.3 CONSTRUCTION REQUIREMENTS:

4.3.1 Posts will be centered in the hole. The concrete will be finished smooth with a trowel and crowned 1-2” to allow water shed away from post. All posts shall be set plumb and to the required grade and alignment. No material shall be installed on the posts, nor shall they be disturbed in any manner within 72 hours of pouring concrete.

4.3.2 All concrete shall be placed during daylight, unless otherwise approved. All water shall be pumped from post holes prior to concrete placement. Concrete shall be placed as soon as practical after mixing and in no case later than one (1) hour after water has been added to the mix. The method and manner of placing shall be such to avoid segregation and displacement of the reinforcement.

4.3.3 Concrete shall not be placed when the atmospheric temperature is below 35 degrees F or when there is a probability the temperature will go below that in the next twenty-four (24) hours unless the concrete is protected in a manner suitable to the Contracting Officer or his designated representative. Frozen concrete shall be immediately removed upon direction of the Engineer and replaced with new work at no expense to the government. The hole shall not have any standing water in it prior to placing concrete.

4.3.4 All concrete shall be installed in one continuous pour completely filling holes. No partial pours will be accepted.

END OF SECTION 4.0

SECTION 5.0 – Wood and Composite Fencing

Section 5.0, Wood and Composite Fencing: This section synonymously uses wood and composite as one in the same, the project manager will dictate which type material to use.

5.1 Products from other qualified manufacturers having a minimum of 5 years experience manufacturing steel posts will be acceptable by the architect as equal, if approved in writing, ten days prior to bidding, and if they meet the following specifications for design, size, gauge of metal parts, fabrication and wind load capability according to the American Society of Civil Engineers Wind loads guidance.

END OF SECTION 5.0

Appendixes

DETAILS AND DRAWINGS

Perimeter Non Frangible Security Fence Detail

Frangible Security Fence Detail

Wood Fence Detail

CABLE BARRIER POST NOTES

1. ALL POSTS SHALL BE HSS 4"x4"x1/4" ROLLED STEEL SECTIONS. THE

ANCHOR POST STUB SHALL BE S75 X 11. WHERE THE RAIL IS PARALLEL TO

THE EDGE OF THE PAVEMENT, EVERY SIXTH (6TH) POST STARTING WITH

THE FIRST SHALL BE REFLECTORIZED. DO NOT REFLECTORIZE POSTS IN

THE INTERMEDIATE ANCHORAGE SECTION, TYPICAL APPROACH AND

TERMINAL SECTION, OR WHEN USED AS A MEDIAN BARRIER.

2. REFLECTORS SHALL BE ALUMINUM ALLOY 1/16" THICK WITH REFLECTIVE

WHITE SHEETING. THE REFLECTIVE SHEETING SHALL BE WHITE WHEN

INSTALLED ON THE RIGHT SIDE OF TRAFFIC AND FLUORESCENT YELLOW

WHEN ON THE LEFT.

3. 3/4" ROUND WIRE CABLE SHALL CONSIST OF THREE STRANDS (7 WIRES PER

STRAND) AND HAVE A MINIMUM TENSILE STRENGTH OF 25,000 LB

4. MATERIALS INDICATED AS "MALLEABLE IRON" SHALL BE GRADE 24018,

UNLESS OTHERWISE SPECIFIED.

5. ALL CABLE ENDS AND SPLICES SHALL BE DESIGNED TO USE THE WEDGE

SHOWN IN DETAIL "X" AND SHALL DEVELOP THE FULL STRENGTH OF THE

3/4" ROUND CABLE (25K LBS). THE CABLE ENDS AND SPLICES SHALL BE

HOT DIPPED GALVANIZED AS INDICATED IN MATERIAL SPECIFICATION

FOR CABLE GUIDE RAIL. THE WEDGE SHOWN IN DETAIL "X" SHALL NOT BE

GALVANIZED.

6. CABLE SPLICES TO BE FABRICATED FROM MALLEABLE IRON CASTING

GRADE 22010 OR ASTM A536 DUCTILE IRON GRADE 65-45-12. GALVANIZE

BEFORE MACHINING. SEE NOTE 5.

7. STAGGER CABLE SPLICES. PROVIDE A MINIMUM OF 20 FEET BETWEEN

ANY PAIR. PROVIDE A MINIMUM OF 100 FEET BETWEEN CABLE SPLICES

ON THE SAME CABLE.

8. AT ALL LOCATIONS WHERE THE CABLE IS CONNECTED TO A CABLE

SOCKET WITH A WEDGE TYPE CONNECTION, ONE WIRE OF THE WIRE

ROPE SHALL BE CRIMPED OVER THE BASE OF THE WEDGE TO HOLD IT

FIRMLY IN PLACE.

9. DESIGNS FOR A STEEL TURNBUCKLE CABLE END ASSEMBLY OR SPRING

CABLE END ASSEMBLY SHALL BE SUBMITTED FOR APPROVAL.

10. FOR ARRANGEMENT OF SPRING CABLE END ASSEMBLIES

(COMPENSATING DEVICES) AND TURNBUCKLE CABLE END ASSEMBLIES,

THE FOLLOWING CRITERIA SHALL APPLY:

LENGTH OF CABLE RUNS:

-TO 1000 FT - USE COMPENSATING DEVICE (DETAIL B) ON ONE END, AND

TURNBUCKLE (DETAIL A) ON THE OTHER END OF EACH INDIVIDUAL CABLE.

-OVER 1000 TO 2000 FEET - USE COMPENSATING DEVICE (DETAIL B) ON EACH

END OF EACH INDIVIDUAL CABLE.

-OVER 2000 FT - START NEW STRETCH BY INTERLACING AT LAST PARALLEL POST

(SEE TYPCAL INTERMEDIATE ANCHORAGE DETAILS)

PRIOR TO FINAL ACCEPTANCE BY THE OWNER, THE FOLLOWING VALUES SHALL

BE USED TO TIGHTEN THE TURNBUCKLES, DEPENDING ON THE TEMPERATURE

AT THE TIME OF THE ADJUSTMENT.

11. THE CONCRETE ANCHOR SHALL BE SET INTO THE EXCAVATION AS

DETAILED. THE BOTTOM OF THE ANCHOR SHALL HAVE A FULL AND

EVEN BEARING ON THE SURFACE UNDER IT SO THAT IF THE CONTRACTOR

ELECTS TO PLACE THE ANCHOR IN TWO SECTIONS, THERE WILL BE LITTLE

OR NO DIFFERENTIAL SETTLEMENT. IF THE CONTRACTOR ELECTS TO

PLACE THE ANCHOR IN TWO SECTIONS, THE TOPS OF BOTH SECTIONS

SHALL BE ON THE SAME PLANE. AFTER THE ANCHOR IS IN PLACE, THE

EXCAVATION SHALL BE BACKFILLED IN ACCORDANCE WITH THE

STANDARD REQUIREMENTS FOR "FILL AND BACKFILL AT STRUCTURES,

CULVERTS, PIPES, CONDUITS, AND DIRECT BURIAL CABLES".

12. DO NOT INSTALL CABLE GUIDE RAILING ON CURVES WITH A CENTERLINE

RADIUS OF LESS THAN 115'.

13. CURBS GREATER THAN 3" HIGH ARE NOT TO BE RETAINED OR PLACED IF

DESIGN, POSTED, OR OPERATING SPEED EXCEEDS 60 km/h. RAIL

MOUNTING HEIGHT IS TO BE MEASURED FROM PAVEMENT IF OFFSET

BETWEEN PAVEMENT AND RAIL lS 9" OR LESS AND FROM GROUND

BENEATH RAIL IF OFFSET IS GREATER THAN 9".

14. LIFTING DEVICES, IF EMBEDDED IN CONCRETE, SHALL BE RATED BY

THEIR MANUFACTURER AS HAVING A "SAFE WORKING LOAD" OF FOUR

TONS (4 TONS U.S. CUSTOMARY) FOR THE ONE PIECE ANCHOR AND TWO

TONS (2 TONS) EACH FOR EACH OF THE HALVES OF THE TWO PIECE

ANCHOR UNIT.

15. ALL CABLE BARRIER POSTS TO BE PAINTED BARKSDALE

BROWN.

CABLE BARRIER POST DETAILS

CABLE BARRIER POST DETAILS (CONT’D)

LINE ITEM COSTS

ITEM

# LINE ITEM QUANT UNIT

UNIT

PRICE TOTAL

0001 4’ high Chain link Fence Fabric 250 LF $22.85 $5,712.50

6’ high Chain link Fence Fabric, with 3 strands barb wire for 7' total with outriggers 5000 LF $33.55 $167,750.00

Chain link Fence Line Post (6’ or 7’ Fence) New installation 15 EA $22.65 $339.75

Chain link Fence Line Post (6’ or 7’ Fence) New installation, Frangible Posts 5000 LF $46.58 $232,900.00

0005 Remove and Replace Line post (6' or 7') 25 EA $37.35 $933.75

Corner, End, or Pull Post (6’ or 7’ Fence) Chain link Fence New install 15 EA $97.00 $1,455.00

Remove and Replace Corner, End, or Pull Post (6' or 7') 10 EA $97.00 $970.00

Corner, End, or Pull Post (4’ Fence) Chain link Fence; New install 10 EA $76.35 $763.50

Brace Post (6’ or 7’ Fence) Chain link Fence; New Install 10 EA $16.86 $168.60

Remove and Replace Brace Post (6' or 7') Chain link Fence 10 EA $61.50 $615.00

Brace Post (4’ Fence)Chainlink Fence; New install 10 EA $23.00 $230.00

Top or Bottom rail, including hog rings or tie wires, (galvanized steel) 1500 LF $12.05 $18,075.00

0014 4" Gate Post New Install 20 EA $33.65 $673.00

0015 6.625" Gate Post New Install 10 EA $52.75 $527.50

0016 4" Gate Post Replacement 10 EA $73.35 $733.50

0017 6.625" Gate Post Replacement(6' or 7') 10 EA $86.30 $863.00

(Note: Gate Posts are not included with the following gates)

Chain link Fence Double Swing Gate (6’ or 7’ Fence: 16’+ Wide) 1 EA $1,225.00 $1,225.00

Chain link Fence Double Swing Gate (6’ or 7’ Fence: 20’+ Wide) 1 EA $1,475.00 $1,475.00

Chain link Fence Double Swing Gate (6’ or 7’ Fence: 24’+ Wide) 1 EA $1,875.00 $1,875.00

Chain link Fence Cantilever Gate (6’ or 7’ Fence: 16’+ Wide) 1 EA $3,232.00 $3,232.00

Chain link Fence Cantilever Gate (6’ or 7’ Fence: 20’+ Wide) 1 EA $4,040.00 $4,040.00

Chain link Fence Single Swing Gate (4’ Fence: Personnel) 1 EA $465.00 $465.00

Chain link Fence Single Swing Gate (6’ or 7’ Fence: Personnel) 1 EA $515.00 $515.00

0025 Concrete Removal 10 CY $65.65 $656.50

0026 Chain link Fence Removal 3500 LF $9.65 $33,775.00

0027 Barbed Wire Fence Removal 150 LF $8.65 $1,297.50

0028 Re-stretch Barbed Wire 2000 LF $18.25 $36,500.00

Remove/Replace Barbed Wire or Mid Span Splice 6500 LF $14.25 $92,625.00

0030 Remove/Replace Barbed Wire Out Rigger 50 EA $38.35 $1,917.50

0031 Re-stretch Tension Wire 1500 LF $9.65 $14,475.00

Remove/Replace Tension Wire or Mid Span Splice 2500 LF $18.95 $47,375.00

0033 Adjust Gate Hinges 10 PR $3.55 $35.50

0034 Remove/Replace Gate Hinges 10 PR $36.55 $365.50

0035 Install Gate Keeper 10 EA $25.00 $250.00

Fence Repair, Hourly Labor Charge(3 personnel) 80 HR $27.00 $2,160.00

GENERAL FENCE WORK ITEMS

0037 Install Temporary Fence 6 Month $1,200.00 $7,200.00

Total For Government Estimate $684,169.60