B8-23_Attach_3_JB_Repair_Boundary_Fence_-_SOW.pdf

131st Bomb Wing Missouri Air National Guard

Jefferson Barracks Air National Guard Station 29 Sherman Avenue

Saint Louis, MO 63125

STATEMENT OF WORK

Project LTUY182004, Repair Boundary Fence

Prepared by: 131 CES/CEN, 26 Mar 2019

1. GENERAL REQUIREMENTS:

Contractor shall furnish all labor, tools, material, equipment, and supplies necessary to repair by replacement the installation boundary fence and install anti-ram cabling, Jefferson Barracks Air National Guard Station.

Contractor is responsible for keeping construction area(s) neat, orderly, and in compliance with OSHA standards.

Contractor will be responsible for cleanup upon project completion. Contractor shall comply with all Occupational Safety and Health Act (OSHA) and Air Force Occupational and Environmental Safety (AFOSH) guidelines while performing work. Period of performance is 90 calendar days.

a. Contractor will not use Government dumpsters except as noted below.

b. Contractor will be responsible for the storage, transportation, and disposal of all demolition and waste Materials, except as noted below.

c. The Contractor shall become familiar with all details of the work, verify all dimensions in the field and specifications stated herein and shall advise the Contracting Officer of any discrepancy before performing the work.

d. Work shall be accomplished during regularly established Air National Guard duty hours. The Government will furnish a copy of the current work schedule during the site visit. Work days are typically 9 hours long, but off days occur every 2-3 weeks and on a random basis.

e. All Contractor personnel are required to have a valid photo identification card to enter the installation.

f. All work shall be coordinated with the Contracting Officer’s Representative (COR), MSgt Douglas Blase, 314- 527-8373, or the Engineering Assistant John Matthews, 314 527-8226.

2. PRINCIPLE ITEMS OF WORK:

a. This project involves repair by replacement entire base perimeter fence (excepting the decorative fence surrounding the main (north gate)), approximately 8,650 linear feet (LF).

b. New fence to be 7’ of 6-gauge chain link fabric, with additional two-way outriggers with three strands of barbed wire per side. Anti-ram cabling to be installed on west and northern perimeters of the installation.

c. Replace West Gate (30’ cantilever sliding gate), River Road Gate (20’ double swing gate), and Grant Road Gate (30’ double swing gate). Replace operational hardware & motors at North Gate and West Gate.

d. Note that all dimensions in this statement of work are approximate and should be field-verified by Contractor.

e. Contractor shall, in two areas, clear existing vegetation and improve visibility to base perimeter fence.

f. Integrity of perimeter security shall be maintained at all times, and at no period may the Contractor leave site without a continuous fence line in place.

g. All metals demolished will be placed in the on-base metal recycling bin in a clean condition.

h. All work is described below in this statement of work. All work to be accomplished by this project shall comply with the specifications expressed herein.

i. Note that this project does not include any work to interior fencing.

j. All materials to be utilized by the Contractor shall be submitted to the Contracting Officer or his official representative for approval IAW the AF Form 66 Schedule of Material Submittals.

k. Allow sufficient review time so that installation will not be delayed as a result of the time required to process submittals, including time for re-submittals.

l. Jefferson Barracks is an historic base, and at times there is inadvertent discovery of artifacts and other items of historic significance. If, during this project, items are unearthed, work is to cease and the COR or Engineering Assistant notified to contact the Environmental Management Office at the installation. In consultation with the State Historic Preservation Office, a determination will be made as the disposition of the artifacts and resumption of work efforts.

3. REQUIREMENTS:

Demolition and Removal:

a. Demolish existing boundary fence from point A counterclockwise to point P, approximately 8,650 LF. At all times, integrity of boundary security must be maintained, either through installation of temporary fence, or the offset of new fence line to allow for new construction prior to demolition of existing fence. Any proposed offset must be approved in writing via formal submittal (see Schedule of Material Submittals).

b. All metal (chain link, outriggers, caps, clips, wires, barbed wire, poles, etc.) shall be placed in Government-provided metal recycling dumpsters and be the property of the Government for salvage.

c. Concrete footings for poles shall be cut off by Contractor and recyclable portion placed in Government-provided metal recycling dumpsters. Contractor to dispose of concrete footing and embedded remainder of fence pole.

d. Existing bollards and gate at Grant Road Gate shall be removed and disposed of by Contractor. Bumper blocks to be removed and given to 131 CES Project Manager. Replace Grant Road Gate with new fence.

Figure 1. Grant Road Gate. (Eliminate) Figure 2. Grant Road Gate. (Eliminate)

e. Removal of Jersey barriers (example: Gate 10, West Gate, Grant Road Gate, River Road Gate) shall be coordinated with 131 CES Project Manager.

Figure 3. Gate G10 in Section BC. (Eliminate) Figure 4. River Road Gate. (Replace)

f. At West Gate: remove gate opening mechanism (motor, chain, housing, etc.), gate fence sections, and exterior– mounted phone box and plywood board.

Figure 5. West Gate. (Replace Gate & Opener) Figure 6. West Gate. (Replace Gate & Opener)

Figure 7. West Gate. (Replace Door and Opener) Figure 8. West Gate. Eliminate jog in fence and Maintain power to sewer pump at all times. make collinear. Eliminate tree if necessary.

Vegetation Clearance and Grading:

g. Between points G and H on southern boundary, clear approximately 1.75 acres of thickly-vegetated ground rising steeply to the south. All brush and undergrowth to be removed and the area regraded / shaped to smooth contour.

Seed (Kentucky 31 Fescue) and straw area. Clear all vegetation to provide line-of-site of fence from base interior.

Figure 9. Southern Boundary Fence. East side of Figure 10. Southward view facing southern boundary Building 42 visible in background fence. Representation of vegetation density.

Figure 11. Southern boundary fence line. Clear Figure 12. Southern boundary fence near Pt. G.

vegetation, grade, and seed.

h. Between points I and J on the eastern boundary, clear approximately 0.25 acres of thickly-vegetated area along fence line. All brush and undergrowth to be removed and any bare patches seeded (Kentucky 31 Fescue) and covered with straw. Care must be taken to avoid damage to the existing limestone retaining wall. Clear all vegetation to provide line-of-site of boundary fence from base interior.

i. Trees larger than 8 inches in diameter (24-inch circumference) will only be removed after specific concurrence from 131 CES project manager.

j. Any tree left in place will have all branches removed to a height of 10 feet above the ground for visibility and line of site.

k. Install temporary silt fences where needed in grading areas, in accordance with approved storm water pollution prevention plan (SWPPP – See Schedule of Material Submittals).

Figure 13. East boundary fence, east of Building 1. Figure 14. Access point adjacent to Cemetery, south of Pt. H.

l. All removed vegetative material shall be removed from the Installation by Contractor and disposed of appropriately.

Fence Construction:

m. See Attachment 2 and Table 1 (page 6). Construct 7’ chain link fence with additional 1’ (vertical) two-sided outriggers for total height of 8’.

n. Specifications are provided from the Unified Facilities Code (UFC) 4-022-03, Security Fences and Gates (Attachment 2). Employ these as minimum design specifications.

o. Fencing fabric must be minimum 6-gauge wire mesh and mesh openings must not be greater than 2 inches per side. Fence fabric material will be galvanized steel. (See Fencing Notes, Attachment 2, UFC-701.)

p. The fencing fabric must be extended to within 2 inches of firm ground and anchored. Bottom tension wires will prevent fencing fabric from being lifted.

q. Twisted selvage must be provided on the top of the fence fabric to deter climbing. Twisted selvage must be provided at the bottom of the fence fabric to deter burrowing.

r. Fencing fabric must be mounted on steel posts that are set in concrete with additional bracing at corners and gate opening, as necessary. Posts, bracing, and all other structural members must be placed on the secure side of the fencing fabric. Posts must be vertical within 2 degrees in any direction.

s. Locate all posts, rails, bracing, and tension wires on the secure/protected side (inner side) of the fencing fabric.

t. Chain link fence sections shall include top and bottom tension wires or rails, brace rails, and truss rods.

u. Chain link fabric shall connect to posts using tie wires.

v. Outrigger must provide a minimum of an additional 12” to the fence height (8’ total height). Install outriggers at 45-degree angles consisting of 18” arms, each having three strands of barbed wire at regular intervals along the top of the fence.

w. Outriggers must be permanently affixed to the fence posts with screws or by spot welding. Screws used to affix outriggers to posts must be made tamper-proof either by design, peening, or welding.

Table 1. UFC Reference Guide for Fence Details.

Requirement UFC Reference Detail Title

Boundary Fence Detail 700

• Fence and Corner Panel Elevation

• Fence and Braced Panel Elevation

• 6-Strand Barbed Wire and Double Extension Arm

Configuration

• Line Post Details

• Corner or End Posts

Boundary Fence Detail 701 • Double Extension Arm Detail

• Grounding Detail

Swing Gate Detail 702

• Typical Double Swing Gate Elevation

• Drop Bar, Hinges, Latches

• For: River Road Gate

Cantilevered Sliding Gate 703 • For: West Gate

Concrete-Filled Bollard 705

• Concrete Filled Bollard - Footing

• Concrete Filled Bollard – Plate

• For: Behind North Gate Decorative Fence

Anti-Ram Cable Detail 710

• Plan of End Post Deadman and Line Post Layout

• Elevation of End Post Deadman and Line Post

Layout

Anti-Ram Cable Detail 711

• Plan of Deadman and Line Post Layout

• Elevation of Deadman and Line Post Layout

• Plan of Turning Point Post Layout

• Turning Point Post Layout

• For: Employment at all Corners in Boundary

Fence

Gate Cable Detail 712

• Cable Reinforcing Cantilever Slide Gate

• Cable Reinforcing Double for Swing Gate

• For: River Road Gate (Swing)

• For: West Gate (Cantilever Sliding)

Anti-Ram Cable Detail 713, 714 • Multiple Details for Anti-Ram Construction

x. Barbed wire must consist of two 12.5-gauge twisted line wires with 15-gauge round barbs. Barbed wire must be zinc-coated steel. All barbs must consist of four points and spacing of barbs must be at 5” centers.

y. Steel truss rods used for bracing must have a minimum nominal diameter of 5/16” and provided with turnbuckles for tensioning. Provide bracing for each gate terminal and end post. Install truss rods diagonally form near ground level of the gate, terminal or end post within 6” from the top of the fabric at the adjacent line post. Fencing fabric to be securely fastened to tension wires on the top and bottom with 9-gauge galvanized tie wires incorporating at least three full twists.

z. All metals to be galvanized, unless otherwise specified.

aa. Replace West Gate (30’ cantilever sliding gate), and River Road Gate (20’ swing gate).

bb. Replace operational hardware & motors at North Gate and West Gate. Gate controls should be tied in to and be operational by operators in Building 21 (North Gate) and Building 22 (West Gate), respectively.

cc. Ground fence in accordance with National Electric Safety Code (NESC), NESC-IEEE C2. As a minimum:

• Fence must be grounded at each side of a gate or opening

• Gates must be bonded to the grounding conductor, jumper, or fence

• A buried bonding jumper must be used to bond across a gate or other opening in the fence, unless a non-conducting fence section is used

• If barbed wire strands are used above the fence fabric, the barbed wire strands must be bonded to the grounding conductor, jumper, or fence

• When fence posts are of conducting material, the grounding conductor must be connected to the fence post or posts, as required, with suitable connecting means

• When fence posts are of non-conducting material, suitable bonding connection must be made to the fence mesh strands and the barbed wire strands at each grounding conductor point

dd. Coating on any fasteners or ties must be electrolytically compatible with fencing fabric to inhibit corrosion. All security fence fittings must be electrolytically compatible with all fence components.

ee. Install anti-ram cable on west and north boundaries of installation, per Attachment 1. Incorporate anti-ram cabling into existing North Gate and in replacement gates at West Gate and River Road Gate.

ff. Cables shall be at a minimum ¾” diameter wire rope in accordance with ASTM A1023/A1023M.

gg. Reinforcing cables must be terminated to concrete deadman anchors. Anchors are to be placed at intervals of 200 LF on the secure/protected side of the perimeter fencing.

hh. Install concrete-filled plate bollards (Per Attachment 2, UFC-705) behind existing north gate decorative fence between in- and out-bound lanes. Note plate bollard connection shall be stamped by a registered engineer for ATFP compliance.

ii. For fence section ML, back boundary fence location to a distance 5 LF off the existing southern edge of roadway.

For all fence sections, new boundary fence to be offset no less than 5 LF from edge of existing roadways to allow for grounds maintenance.

jj. For fence sections CD and EF, eliminate lateral jogs in fence line to make collinear. In section CD, eliminate tree if necessary.

kk. For fence section FG, eliminate existing gate and walk-through gate leading south to cemetary.

ll. At interior corners of perimeter fence, install bollard systems per detail, Sheet UFC-711, Attachment 2. Detail title: ‘Typical Plan of Turning Point Post Layout”.

DESIGN CODES:

Major design codes and standards, which are applicable to all Air National Guard (ANG) construction, are indicated below. This listing is not intended to be all-inclusive. It is the Contractor’s responsibility to have or procure all other applicable codes and standards.

UFC 4-022-03, Security Fences and Gates

ANG ETL 01-1-1 Air National Guard Design Policy.

Uniform Building Code, BOCA, Southern Building Code, International Building Code - (Model Building Codes use the nationally recognized building code with state amendments accepted locally when the ANG is not a tenant on an Air Force Base).

Air Force Regulations – Apply as directed and when the ANG is a tenant on an Air Force or Reserve Host Base.

Standards established by the public utility having jurisdiction – Water, Sewer, Storm Drainage, Electrical furnished by Public Utilities

Code of Federal Regulations, State Regulations where State has jurisdiction – Energy, Environmental Protection, Safety

OSHA; AFOSH – Safety

NEC – Electrical Design

SPECIAL REQUIREMENTS:

a. Contractor shall ensure vehicle and foot traffic is allowed to continue, keeping at least one lane open for vehicular traffic. Exercise proper safety precautions when working at any intersections. Coordinate shutdown of traffic lanes with Base Security and Civil Engineering.

b. Only those persons granted permission shall enter the Jefferson Barracks ANG Base and restricted to the location of the project. Contractor shall complete an entry authorization list request using the installation form to the Contracting Officer’s Representative (COR) before starting work; the list shall include names and phone numbers.

Upon entry the security officers at the gate will verify the names on the entry list provided by the General Contractor. If General Contractor has to add or delete personnel from the list it must be submitted at least two days before starting work.

c. Normal Government activities in the vicinity of this project may be kept in full or partial operation during construction. The Contractor shall coordinate with the Contracting Officer’s Representative (COR-Lt Col Daniel Nelsen or MSgt Douglas Blase) and schedule construction activities so as to allow the safe and efficient operation of these activities.

d. All parking of vehicles and equipment shall be in area provided at job site.

e. Prior to any excavation on base, the Contractor must obtain dig permits from Base Engineering for government owned underground utilities and from MO Dig Rite for clearance of all commercial utilities. Air Force (AF) Form 103 - Base Civil Engineer Work Clearance will be requested from Base Civil Engineering (BCE), Building 29, at least five days prior to excavation. The project Superintendent or appropriate sub-contractor shall maintain a copy of the approved AF Form 103 permit on the site during digging operations.

f. All refuse, debris and construction waste, outside the metal referenced in the items above, shall be legally disposed of off base at a licensed landfill or approved recycling facility. Accumulations of refuse on the site will not be permitted. Government dumpsters will not be used.

g. All work shall be performed in accordance with the Occupational Safety and Health Act (OSHA); Air Force Occupational and Environmental Safety (AFOSH) and all Federal, State, Local and Base Regulations.

h. The Government will not be responsible for property belonging to, or under the control of the Contractor and no secure storage will be provided.

i. The Contractor shall maintain construction site in as clean and orderly condition

2 Attachments:

1. LTUY182004 Repair Boundary Fence – Site Plan

2. UFC 4-022-03 Detail Drawings – Edited (Excerpted from UFC-4-022-03, Security Fences and Gates)

Attachment 1. Site Plan

CLEAR VEGETATION & REGRADE

ELIMINATE GATE & WALK-THROUGH GATE

GATE G2: ELIMINATE GRANT

ROAD GATE. REPLACE WITH

NEW FENCING AND CABLE.

REMOVE PHONE BOX

MAINTAIN CONTINUOUS POWER TO SEWER PUMP

REPLACE GATE AND OPERATION HARDWARE

UTILIZE EXISTING BOLLARDS

ELIMINATE JOG IN FENCE;

ELIMINATE TREE IF NECESSARY

ELIMINATE GATE G10

RELOCATE FENCE LINE

IN 5 FEET FROM EXISTING LOCATION

ALONG LINES LM, NO (As feasible), OP, AND ABELIMINATE GATE G8

ELIMINATE JOG IN FENCE;

MAKE COLLINEAR

BASE BID

REQUIREMENTS

REPLACE GATE OPERATION HARDWARE

UTILIZE EXISTING BOLLARDS

INSTALL ANTI-RAM CABLING BEHIND

EXISTING DECORATIVE FENCING

Attachment 2. UFC 4-022-03 Detail Drawings - Edited.

U

FC

4-022-03 "Security

Engineering:Fences and

G ates

U

4-022-03 "Security

Engineering:Fences and

G ates

B 1/U

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