(SOW) ZOA ARTCC Replace Security Fence_01.29.2026.pdf

Federal Aviation Administration

Western Service Area

OAKLAND ARTCC (ZOA)

REPLACE SECURITY FENCE AT ZOA

JCN 23009224 (IIJA)

STATEMENT OF WORK

FEBRUARY 2025

Oakland District Oakland ARTCC Environmental SSC operational needs and site conditions along the East Property Line of the Oakland ARTCC. For the purposes of planning, the gates are proposed to be installed at strategic access points to facilitate maintenance and emergency access, with one gate positioned approximately 300 linear feet from the northern end of the East Property Line, and the other approximately 300 linear feet from the southern end, subject to COR approval. The gate height is confirmed as seven feet, as specified in both SOW documents and the Standard Fence Drawing (Page 18 of the PDF SOW), ensuring compliance with ASTM F567 and FAA Order 1600.69D.

• Fence Demolition and Replacement Phasing Plan: The demolition of the existing chain-link fence shall be conducted in phases to maintain the highest level of security at the facility and prevent any unprotected openings in the perimeter. Demolition work shall be limited to the amount that can be completed within the same day to ensure the fence remains secure at all times.

This phased approach will ensure that no section of the perimeter is left unsecured during construction. The contractor shall demolish and replace the fence in segments, with each segment not exceeding 200 linear feet.

Temporary security measures, such as portable fencing or barriers, shall be installed around active work zones to maintain a secure perimeter. These measures shall be coordinated with the COR and designated site contacts. All work shall comply with FAA Security Regulations, Section 3.2 of the Statement of Work (SOW). No unescorted access will be permitted. The contractor shall coordinate daily with the COR to ensure FAA operations are not disrupted.

Temporary barriers must meet or exceed the security standards of the existing fence (e.g., seven-foot-high temporary chain-link fencing with locked access points). A detailed phasing plan shall be submitted as part of the Project Schedule submittal for COR approval prior to the commencement of work.

• No government-furnished material will be provided. The FAA will not perform any portion of work under this contract, including installation of contractor-furnished product/materials.

Work shall not start before issuance of the Notice to Proceed (NTP) by the Contracting Officer. All work shall be completed within the performance period as defined in the Contract Award.

3 GENERAL REQUIREMENTS

3.1 General

3.1.1 Access

Access to the site will be via a pre-determined route identified and agreed upon at the pre- construction conference. Attend site visit to investigate access, site and existing conditions before submitting proposal for bid.

3.1.2 Transportation and Equipment

Contractor is responsible for equipment operation and safety of transportation, including materials and waste transport, maintain adequate insurance policy for vehicular operation to, from and on site.

3.1.3 Meetings

a. Coordinate and attend pre-construction meeting before start construction. Time and location are specified by the COR. Requirements for material disposal, security and safety will be discussed. Use of facility restrooms, water, and power will also be discussed. Compliance with these procedures while on site is mandatory.

b. Conduct pre-activity meeting with the site contacts and COR before major activities.

c. Daily toolbox meetings.

3.1.4 Reports

a. Provide copy or access upon request by COR to daily logs, diaries and weekly reports.

b. Accident/incident reports to COR in timely manner.

c. Manufacturer inspection report, if applicable.

3.1.5 Codes and Regulations

The Contractor shall comply with local and other codes and standards. Where the requirements of the specifications and drawings exceed those of the local or other codes, the Contractor shall comply with the requirements of the specifications and drawings.

3.1.6 Work Hours and Restrictions

a. On-Site Work Hours:

• Limit work in the Facility to normal business working hours between 6:00 AM and 4:30 PM, Monday through Friday, unless coordinated with COR in advance.

• No work will take place on Federal holidays without prior approval by the

COR.

• Weekend work and overtime is not authorized without approval by the COR, except as otherwise noted.

• No work shall be scheduled or take place during the week of and the weekend preceding and following the Thanksgiving, Christmas and New Year Holidays. Only emergency work to restore critical services to the facility will be considered and a moratorium waiver must be submitted and approved. The moratorium period will not be counted against the contract construction duration.

3.2 Security

The following security regulations apply to all construction contractors, subcontractors, delivery crews and otherwise.

3.2.1 General Security

a. FAA provides access and escort during work hours. Site is locked during off hours. Contractors shall not enter areas, buildings and spaces that are not part of the required work. Coordinate with FAA if such a need arises. Contractors shall avoid interference with FAA facility operations. Report to COR and stop operation immediately if such incident occurs.

b. All employees are subject to vehicle and on-person search. All persons entering or delivering to this Federal facility must have valid government issued

REAL ID.

c. Persons entering FAA property are prohibited from having on their person or in their vehicle the following:

• Liquor-opened or sealed

• Illegal drugs, contraband, or paraphernalia (pipes, holders, etc.)

• Firearms or parts thereof to include empty gun shells

d. Secured Facility entrances and doors shall not be left unsecured or left unattended for any kind of reason.

3.2.2 Badging

a. Badge must be worn at all times while on FAA property, on an outside garment and readily visible to other personnel.

b. Contractor shall provide the Contracting Officer with a list of contractor personnel who shall request FAA Identification Media Badge. The contractor shall designate a representative to be the POC for inputting employee information into the Vendor Applicant Process (VAP). Minimum two badged personnel required for access and escorting purposes.

c. The badging process takes approximately 30 days to complete. Contact CO for current process and requirements.

3.2.3 Escorting

a. Temporary red badge or "visitor" employees must be escorted at all times while on FAA site.

b. Contractor personnel with a “PIV badge” shall escort the visitor at all times while on site. FAA employees will not escort contractor employees except when it is coordinated and approved by the COR. Escorts shall keep visitor employees within sight.

3.3 Project Coordination

3.3.1 Pre-award Coordination

All project coordination must be facilitated through FAA Contracting Officer. These include all correspondence during solicitation process such as site visit scheduling, contractual and technical questions and answers, bid proposal, and award acceptance.

3.3.2 Post-award Coordination

a. FAA Contracting Officer (CO) will designate a Contracting Officer’s Representative (COR) for the project. COR is the sole point of contact for coordination; clarify contractual, construction and technical issues; review and approve of submittals, conduct inspections and acceptance of deliverables.

Contractor shall coordinate all construction activities with the FAA through the

COR.

• In absence of a designated COR and under direction from the CO, pre-construction submittals may be sent to and reviewed by the FAA Site Contacts.

b. All work which affects the facility shall be coordinated and approved by FAA personnel through the COR at least forty-eight (48) hours in advance of the scheduled work. Failure to notify and obtain the necessary approval may result in a rescheduling of the work.

c. Correspondence: All correspondence must be addressed and delivered electronically to the Contracting Officer and the COR.

d. Maintain access to vehicles entering and leaving the Facility grounds.

e. Notify owner not less than ten workdays in advance of activities that will affect owner's operations.

3.4 Health and Safety

OSHA and FAA safety standards will be enforced. Contractor shall, at a minimum, provide:

3.4.1 Safety Plan

Submit a Safety Plan with the purpose of maintaining a safe working environment for construction workers employed on site. The safety plan shall require a statement that the current Occupation Safety and Health Act (OSHA) regulations on safety in the construction industry, OSHA Title 29, Part 1910 and Part 1926, as well as FAA safety regulations are followed. The plan will be used by the COR to ensure that the work is accomplished in accordance with accepted safety practices.

3.4.2 Trained Personnel

Personnel shall be properly trained in the usage of all equipment for which they will be required to use during the Contract. The COR may request documentation or other evidence of training at any time. Personnel without adequate training will be prohibited from using such equipment.

3.4.3 Material Safety Data Sheets

Contractor shall have Material Safety Data Sheets (MSDS) conforming to Federal Standard 313A, written by the manufacturer, for all materials containing chemicals or other substances which may pose a hazard. One (1) copy of each MSDS shall be submitted to the COR and one (1) copy of each MSDS shall be kept on file at the job site at all times. The contractor and subcontractors will be prohibited from handling any material which does not have an applicable MSDS on file at the site until such MSDS arrives on site.

3.4.4 Safety Equipment

Contractor shall provide safety equipment including, but not limited to, a Red Cross approved First-Aid kit and the appropriate number of annually inspected, charged fire extinguishers with the proper NFPA rating.

3.4.5 HAZCOM Program

Contractor shall have a hazard communications (HAZCOM) program. The contractor and each subcontractor shall submit a copy of their HAZCOM program as well as a copy of their current OSHA 200 form, if requested.

3.4.6 Work Practices

Although OSHA regulations and the Contractor's Safety Plan will usually apply, the COR may consider certain work practices to be unsafe in accordance with Public

Law 91-596, Part 5a and 5b. The COR may stop any operation which is in violation of the OSHA standards or fails to comply with the safety plan or other safe work practices.

3.4.7 Designated Foreman

When any construction activity is conducted at the site, the presence of a designated, competent contractor’s foreman is required at the job site. The foreman must be qualified and capable of organizing and coordinating all activities of the contractor and his subcontractors and keeping a safe job site.

3.4.8 Work Force

The contractor shall, at all times, when construction activities are conducted, have a substantial number of workers for each task to proceed expeditiously and without generating delay, for lack of manpower.

3.5 Temporary Facility and House Keeping

3.5.1 Temporary Facility

a. Do not disturb portions of the site beyond the areas in which work is required.

b. Provide and maintain temporary office (if desired) storage, worker refuse, dumpster or trash receptacles, and portable toilets for the entire project duration.

Coordinate with FAA for parking, layout and locations of storage, equipment and staging area.

c. Secure all necessary clearances for storage areas on site, including any time limitations upon the use of such areas. The storage and protection of contractor material shall be the sole responsibility of the contractor. The contractor shall provide at his/her own expense all fencing, shelters and security personnel as may be necessary for the protection of the material and equipment.

d. All material deliveries made under this contract shall be arranged for delivery to the contractor's material staging area. This area shall be located as determined at the pre-construction meeting.

3.5.2 Housekeeping and Waste Disposal

a. Provide on-site containers for the collection of construction waste materials, debris and rubbish and their daily removal from the site. The worksite shall be kept clean and orderly during the progress of work.

b. Any spillage on access and haul routes shall be cleaned up immediately. All spoil, waste and debris removed from the work site and not specified for reuse or identified as salvageable items or identified as contaminated contents shall be disposed of offsite in areas authorized by the applicable County, State and/or Local agencies and in accordance with current rules and regulations governing the disposal of such waste.

c. Contractor, at no additional cost to the government, shall pay disposal fees and miscellaneous charges. Copies of all documentation of the disposal of any fuel or hazardous waste will be submitted to the COR.

d. Keep driveways and entrances serving the premises clear and available to the Government, the Government’s employees, and emergency vehicles at all times. Do not use these areas for parking or storage of materials. Schedule deliveries to minimize space and time requirements for storage of materials and equipment on-site.

3.5.3 Protection of Surrounding Areas

Maintain the surrounding areas in a safe condition throughout the construction period. Repair damage caused by construction operations. Take all precautions necessary to protect adjacent areas during the construction period.

3.6 Request for Information Procedure

a. All questionnaires and requests for information (RFI) must be in writing.

Contractors shall receive FAA’s responses and/or answers in writing.

b. Pre-award correspondence: Coordinate questionnaires and RFI through FAA CO. Answers are considered part of the contract and contractor’s pricing proposal.

c. Post award RFI must be numbered sequentially for tracking purposes.

d. Between award and construction: coordinate questionnaires and RFI through FAA site contacts.

e. Construction onward: coordinate questionnaires and RFI through FAA COR designated by CO.

3.7 Submittal Procedures

3.7.1 Procedure

a. Submittals must be provided by the contractor for review and approval prior to, during, and after construction. The contractor is responsible for the adequacy of submittals for compliance with the contract.

b. Each submittal must include a cover sheet with company’s letterhead, transaction number, sequential submittal number, title and description, and date.

c. Contractor shall receive FAA’s review in writing with an approval status as follows:

• approved as submitted. Contractor may proceed with material/equipment purchase and/or activity.

• approved as noted. Same effect as 1 but contractor must comply with reviewer’s notes. Re- submittal is not required.

• revise and resubmit.

• rejected. New product, material, procedure, etc. must be submitted.

• not applicable nor required under contract. No action needed.

d. Due date for review is 15 days. Extension, if needed, shall be notified to contractor in writing before the due date.

3.7.2 Submittal Registry

Submit the following to COR for approval before material acquisition or proceeding to activities.

a. Safety and Health Plan per 3.4.1.

b. Project Schedules: within five (5) calendar days from date of award of contract.

The schedule shall show the order in which the contractor proposes to carry out the project, including dates from start to completion with timeframe procurement of materials, equipment and major activities.

c. Product Data: for each of the products and equipment listed in Section 4, provide a separate submittal to the FAA for approval according to 3.6.1, before facilitating purchase order. Submittals are required for any new material that will be installed as a part of this project that has not been specifically listed as approved for use.

d. MSDS per 3.4.4

e. Daily list of contractor’s personnel on site during construction.

f. Warranty: Provide warranties per industrial standards to include equipment and installation quality from manufacturer and installation contractors.

Documentation for the warranties shall be provided to the government upon completion of the project.

g. Certified payroll records, periodically or at the end of project, depending on project duration.

h. Other submittals may be added if deemed necessary for safety, quality, etc.

during the course of the project.

3.8 Project Modifications

3.8.1 Conflict Resolution

The contractor shall meet standards, specifications, and drawings as specified herein. The specifications and drawings shall rule in all cases. Specifications shall govern over drawings. If any conflict should exist between site drawings (location-specific drawings) and standard drawings (drawings not referring to a particular location), the site drawings shall govern. In the event of dimensional discrepancies or omissions, the contractor shall field verify and correct the information, and notify the COR.

3.8.2 Modifications

When changes occur that impact cost, significant schedule delay, and/or quality of material and installation delivery, discuss with COR before submitting proposed modifications. Do not commence work in the proposed modifications until approved by FAA CO.

3.8.3 Stop Work Orders

When the contractor or subcontractors are notified by the COR of any non-compliance with the provisions of the contract and the action(s) to be taken, the contractor shall correct the unsafe or unhealthy condition. Life threatening or other serious violations shall be corrected immediately. Non-serious violations shall be corrected within 24 hours of the non- compliance notice. The COR may stop the work with a “stop work order” if the contractor fails to comply promptly with all or any part of the work being performed. When, in the opinion of the COR, satisfactory corrective action has been taken to correct the unsafe and unhealthy condition, the contractor may resume work. The contractor shall not be allowed any extension of time or compensation for damages by reason of or in connection with such work stoppage.

3.9 Inspection

3.9.1 Access for Inspection

a. The contractor shall allow the COR complete access to all portions of the work.

Portions of the work buried, enclosed, or disguised, shall be inspected by the COR before being obscured by the next operation. In all cases, the COR shall be informed accordingly and given access to the work. Work obscured before inspection and acceptance by the COR may, at the option of the COR, be opened for inspection at no additional cost to the Government.

b. The COR will inspect all work in progress up to completion and final Contractor’s Acceptance Inspection (CAI) including all materials, tools, and equipment. Such inspection may extend to all or a part of the work for the preparation, fabrication or manufacture of the materials to be used. The COR will notify the contractor of any non-compliance with the contract specifications and/or drawings and may reject workmanship or materials accordingly.

3.9.2 Contractor's Acceptance Inspection (CAI)

After substantial completion of all the contractor's work, a CAI will be conducted between the contractor and Government. The COR will review the contract documents and verify that the contractor has completed all required work. If work remains to be completed, an itemized list will be prepared and the contractor, at no additional cost to the Government, shall complete the remaining tasks correctly. A Joint Acceptance Inspection (JAI) requires FAA personnel to be present. It may be held concurrently with the CAI.

3.10 Closeout

3.10.1 Site Restoration

a. Repair damages of any portion of the surrounding area to its original condition caused by construction operations.

b. Repair damages on access road caused by contractor’s use from transporting materials, wastes and equipment that alter safety and future usage of road from its original conditions.

c. Clean up and restore the site grounds to its original condition after the work has been performed.

3.10.2 Substantial Completion Procedures

a. Submittals Prior to Substantial Completion: complete the following a minimum of ten days prior to requesting inspection for determining date of Substantial Completion. List items below that are incomplete at time of request.

• Submit closeout submittals including project record documents, operation and maintenance manuals and similar final record information.

• Submit closeout submittals specified in individual Sections, including specific warranties, workmanship bonds, maintenance service agreements, final certifications, and similar documents.

• Submit maintenance material submittals including tools, spare parts, extra materials, and similar items, and deliver to location designated by COR.

Label with manufacturer's name and model number.

b. Coordinate with COR for final Contractor Acceptance Inspection as described in Paragraph 3.8.2.

3.10.3 Documentation

a. Submit all documentation Operation Maintenance Manual and Warranty.

b. Submit certified payroll records with final payment application.

4 PRODUCT AND INSTALLATION REQUIREMENTS

4.1 Scope and Quantity Verifications

4.1.1 Site Visit

A pre-proposal (bid) site walk is highly recommended. Contractors are encouraged to ask questions regarding existing conditions, quantities of materials, and amount of work required. Questions asked at the site visit will not be answered verbally. Questions and their applicable answers will be posted on a formal amendment and incorporated into the Request for Offers. Timeline for procurement events can be found in the Solicitation Announcement.

4.1.2 Site Condition and Quantity

The contractor is responsible for ensuring that their offer reflects all work and time required to accomplish this project. The dimensions, measurements, and quantities of materials, if listed herein, are estimated and are presented to give the contractor an idea of the total scope of work.

4.2 Installation of New 12- Foot High Chain Link Security Fence and Gates

4.2.1 General

a. Work Location: Project area is along the East Property Line of the Oakland

ARTCC.

b. Submittal: Submit product specification for the following.

• Galvanized Fencing Fabric 9 Gauge

• Galvanized End and Line Posts

• Barbed Wire

• All other Galvanized Fittings and Hardware

c. Substitution is allowed if preferred product is no longer available. Proposed product must meet or exceed the preferred product’s specification. Submit the substitution product for approval before ordering.

d. Demolition:

• Coordinate with COR and site contacts for a phased Demolition of Existing Chain Link Fence.

• Remove existing Grounding Terminations and Perimeter Intrusion Detection Cabling for reuse with new Fence.

• Remove and dispose of each phased section of the existing Chain Link Fence.

• Keep the disturbance of the surrounding areas to a minimum.

e. Installation:

• Fencing consists of a 12-foot-high, 9-gauge woven galvanized steel wire fabric with mesh openings not larger than two inches per side and a one-foot-high outward-facing top guard consisting of three strands of galvanized barbed wire set at an outward angle of 45 degrees for a total of 13 feet above grade. Per FAA Order 1600.69D, FAA Facility Security Management Program, construction of FAA security fences and gates will comply with Federal Supply Service, Federal Specification RR-F-191K, Fencing, Wire, and Post Metal (and Gates, Chain-Link Fence Fabric, and Accessories) (General Specification), Federal Specification Sheets RR-F-191-1E through 4E, and American Society for Testing and Materials (ASTM) F567-07, Standard Practice for Installation of Chain-Link Fence.

• Fence shall include two four-foot wide by seven-foot high swing gates that swing inward and comply with the same Orders and specifications as the fencing.

• Fence end posts shall be four inches outside diameter and Fence Line Posts shall be 2.875 inches outside diameter.

• Hardware shall be installed so they are non-removable.

• Clean up and restore work areas in a professional manner.

4.2.2 Products

a. Preferred product:

• Chain Link Fence fabric height shall be 144 inches high and Galvanized per ASTM A392 class 2.0 oz per SF of surface area.

• All Posts shall conform to ASTM A53 Grade A and Galvanized with two ouncs of hot dipped zinc per ASTM F1083.

• Metallic coated steel Barbed wire shall conform with ASTM A121 with similar coating as the fencing fabric.

• All hardware, fittings and bolts shall be Galvanized per ASTM 153

4.3 Applicable Orders, Standards and Specifications

The following codes and standards contain provisions that constitute provisions of this document. At the time of publication, the editions indicated were valid. All codes and standards are subject to revision; parties to agreements based on this document shall apply the most recent editions of the code’s standards indicated.

All personnel involved with the design or installation of Security Fencing at ZOA ARTCC must have access to the following documents. All equipment, construction practices, design principles and installations must conform to the latest version of any or all of the following standards and codes, published by the following organizations, where applicable.

a. FAA Order 1600.69D, FAA Facility Security Management Program

b. Chain Link Fence and Gate Standard Drawings

c. Chain Link Fence and Gate Specifications

END OF STATEMENT OF WORK

PHOTOS

Typical of Existing 7 Foot Chain Link Fence to be Removed (1000 LF)

Replace with New 12 Foot Chain Link Fence with Barbed Wire

Typical of Existing 10 Foot Chain Link to be Removed (120LF)

Replace with New 12 Foot Chain Link Fence with Barbed Wire

Project Location

Vicinity Map

Oakland ARTCC

STANDARD FENCE DRAWING

See Notes and Specifications Below for Project Specific Requirements

Project Specific Notes

1. Fence shall be 12 feet high with three strands of barbed wire above.

2. The two Gates shall be four feet wide by seven feet high located per COR

Direction.

3. Fence shall have both Top, Brace and Intermediate Rails.

4. See Specifications below for all material sizes and requirements.

5. See Specifications below for Installation requirements.

6. Project Specifications shall govern if any discrepancies with Standard

Drawing.

Reference page 31 for Project Area

FENCE SPECIFICATIONS

CHAIN LINK FENCE AND GATES PART 1 GENERAL

1.1 RELATED DOCUMENTS

a. DIVISION 01 - GENERAL REQUIREMENTS: Drawings, quality, product and performance requirements, general and supplemental conditions apply as applicable to the project and project documents.

1.2 SUMMARY

a. This Section includes industrial/commercial chain link fence and gates specifications:

• Galvanized steel coated chain link fabric

• Galvanized steel framework and fittings

• Barbed wire

• Installation

1.3 REFERENCES

a. ASTM A121 Specification for Metallic-Coated Carbon Steel Barbed Wire

b. ASTM A392 Specification for Zinc-Coated Steel Chain-Link Fence Fabric

c. ASTM A780 Standard Practice for Repair of Damaged and Uncoated Areas of Hot- Dip Galvanized Coatings

d. ASTM A824 Specification for Metallic-Coated Steel Marcelled Tension Wire for Use With Chain Link

e. ASTM F552 Standard Terminology Relating to Chain Link Fencing

f. ASTM F567 Standard Practice for Installation of Chain Link Fence

g. ASTM F900 Specification for Industrial and Commercial Swing Gates

h. ASTM F626 Specification for Fence Fittings

i. ASTM F1083 Specification for Pipe, Steel, Hot-Dipped Zinc-Coated (Galvanized) for Fence Structures

1.4 SUBMITTALS

a. Certifications: Manufacturers material certifications in compliance with the current ASTM specifications.

b. Domestic certifications: Material certifications, Made in U.S.A., Buy American Act or Buy America.

c. Material samples: Provide representative samples of chain link fabric, framework, and fittings. See SOW.

d. Specification Changes: May not be made after the date of bid.

1.5 QUALITY ASSURANCE

a. Tolerances: Current published edition of ASTM specifications tolerances apply. ASTM specification tolerances supersede any conflicting tolerance.

PART 2 – PRODUCTS

2.1 CHAIN LINK FABRIC

a. Steel Chain Link Fabric: Height of fabric shall be 144 inches. Mesh size shall be two inches and fabric shall be nine gauge.

b. Zinc-Coated Steel Fabric: ASTM A392 hot dipped galvanized before or after weaving. Class 2 - 2.0 oz/ft²

c. Fabric selvage: Fabric selvage shall be knuckle at the top, twist at bottom.

2.2 ROUND STEEL PIPE FENCE FRAMEWORK

a. Round steel pipe and rail: Schedule 40 standard weight pipe, in accordance with ASTM A392, 2 oz/ ft² hot dip galvanized zinc exterior and 2 oz/ft² hot dip galvanized zinc interior coating. Regular Grade: Minimum steel yield strength 30,000 psi.

b. Line post outside diameter shall be 2.875 in, weight 5.79 lb / ft.

c. End, Corner, Pull post outside diameter shall be 4.0 in, weight 9.11 lb / ft.

d. Top, Brace, and Intermediate rails outside diameter 1.660 in. 2.27 lb / ft.

2.3 TENSION WIRE

a. Metallic Coated Steel Marcelled Tension Wire shall be installed at bottom of the chain link fence: seven gauge (0.177 in.) marcelled wire complying with ASTM A824 and zinc coated per ASTM A817 to match fencing fabric coating.

2.4 BARBED WIRE

a. Metallic Coated Steel Barbed Wire: Comply with ASTM A121, Design Number 12-4-5-14R, double 12-½ gauge (0.099 in.) twisted strand wire, with four-point 14 gauge (0.080 in.) round barbs spaced five inches on center.

Match coating type to that of the chain link fabric.

2.5 FITTINGS

a. Tension and Brace Bands: Galvanized pressed steel complying with ASTM F626, minimum steel thickness of 12 gauge (0.105 in.) minimum width of 3/4 in and minimum zinc coating of 1.20 oz/ft² Secure bands with 5/16 in.

galvanized steel carriage bolts.

b. Terminal Post Caps, Line Post Loop Tops, Rail and Brace Ends, Boulevard Clamps, Rail Sleeves: In compliance to ASTM F626, pressed steel galvanized after fabrication having a minimum zinc coating of 1.20 oz/ft².

c. Truss Rod Assembly: In compliance with ASTM F626, 3/8 in. diameter steel truss rod with a pressed steel tightener, minimum zinc coating of 1.2 oz/ft², assembly capable of withstanding a tension of 2,000 lbs.

d. Tension Bars: I n compliance with ASTM F626. Galvanized steel one-piece length 2 in. less than the fabric height. Minimum zinc coating 1.2 oz. /ft². Bars for 2 in. mesh shall have a minimum cross section of 3/16 in. by ¾ in.

e. Barbed Wire Arms: In compliance with ASTM F626, pressed steel galvanized after fabrication, minimum zinc coating of 1.20 oz. /ft² capable of supporting a vertical 250 lb load. Type I – three strand 45 degree arm.

f. Tie Wire and Hog Rings: In compliance with ASTM 626, tie wire and hog rings shall be 9 gauge,

g. Concrete: Concrete for post footings shall have a 28-day compressive strength of 3,000 psi.

2.6 SWING GATES

a. Swing Gates: Galvanized steel pipe welded fabrication in compliance with ASTM F900. Gate frame members 1.900 in. OD. ASTM 1083 Schedule 40 galvanized steel pipe. Frame members spaced no greater than eight feet apart vertically and horizontally. Welded joints protected by applying zinc-rich paint in accordance with ASTM Practice A780. Positive locking gate latch, pressed steel galvanized after fabrication. Galvanized malleable iron or heavy gauge pressed steel post and frame hinges. Provide lockable drop bar. Match gate fabric to that of the fence system. Gate posts per ASTM F1083 Schedule 40 galvanized steel pipe.

b. Gate Posts: Regular grade ASTM F1083 Schedule 40 galvanized steel pipe. Gate post outside diameter shall be 2.875 in. 5.79 lbs./ft.

c. Gate height shall be seven feet. Gate widths shall be four feet. Location to be determined by COR.

PART 3 EXECUTION

3.1. REMOVAL OF EXISTING FENCE

Contractor shall remove 4/0 Copper Ground wire from existing fenceposts and leave the pigtails for installation on the new fence by others. Remove the Perimeter Intrusion Device wire from the existing fence fabric for installation on the new fence by others. Safely move to an area designated by the COR. Once both the grounding and PID wiring is removed, the existing fence may be dismantled. Existing posts are to be cut at ground level and the existing footings left in place. Remove and dispose of all debris in preparation of the new fence installation.

3.2 FRAMEWORK INSTALLATION

a. Posts: Posts shall be set plumb in concrete footings in accordance with ASTM F567. Minimum footing depth, 48 in. Minimum footing diameter four times the largest cross section of the post up to a 4.00” dimension.

Top of concrete footing to be at grade crowned to shed water away from the post. Line posts installed at intervals not exceeding 10 ft. on center.

b. Top and intermediate rail: Install 21 ft. lengths of rail continuous through the line post or barb arm loop top. Splice rail using top rail sleeves minimum six inches long. Top rail shall be secured to the terminal post by a brace band and rail end. Intermediate rail shall be field cut and secured to the line posts using boulevard clamps or brace band with rail end.

c. Terminal posts: End posts shall be braced and trussed. The horizontal brace rail and diagonal truss rod shall be installed in accordance with ASTM F567.

d. Tension wire: Shall be installed four inches up from the bottom of the fabric.

Tension wire to be stretched taut, independently and prior to the fabric, between the terminal posts and secured to the terminal post using a brace band. Secure the tension wire to each line post with a tie wire.

3.3 CHAIN LINK FABRIC INSTALLATION

Chain Link Fabric: Install fabric to inside of the framework maintaining a ground clearance of no more than one inch. Attach fabric to the terminal post by threading the tension bar through the fabric; secure the tension bar to the terminal post with tension bands and 5/16 in. carriage bolts spaced no greater than 12 inches on center. Chain link fabric to be stretched taut free of sag. Fabric to be secured to the line post with tie wires spaced no greater than 12 inches on center and to horizontal rail spaced no greater than 18 inches on center. Aluminum alloy tie wire shall be installed following ASTM F567: Wrap the tie around the post or rail and attached to a fabric wire picket on each side of the post or rail by twisting the tie wire around the fabric wire picket two full turns, cut off excess wire and bend over to prevent injury. Preformed nine-gauge power- fastened wire ties shall be installed following ASTM F567: Wrap the tie a full 360° around the post or rail and fabric wire picket, using a variable speed drill, twist the two ends together three full turns, cut off any excess wire and bend over to prevent injury. Secure the fabric to the tension wire by crimping hogs rings around a fabric wire picket and tension wire.

3.4 BARBED WIRE INSTALLATION

Barbed Wire: Stretched taut between terminal posts and secured in the slots provided on the line post barb arms. Attach each strand of barbed wire to the terminal post using a brace band. Barb arm shall be Type 1 facing outward.

3.5 GATE INSTALLATION

Swing Gates: Installation of swing gates and gate posts shall be in compliance with ASTM F567. Direction of swing shall be inward. Gates shall be plumb in the closed position having a ground clearance of three inches. Hinge and latch offset opening space shall not be greater than three inches in the closed position.

3.6 NUTS AND BOLTS

Carriage bolts used for fittings shall be installed with the head on the secure side of the fence. All bolts shall be peened over to prevent removal of the nut.

3.7 ELECTRICAL GROUNDING and PERIMETER INTRUSION DEVICE RE-WIRING

Grounding: Grounding of the fence and gates is not the responsibility of the fence contractor and not included in the fencing scope of work for this contract.

Perimeter Intrusion Device Re-Wiring is not the responsibility of the fence contractor and not included in the fencing scope of work for this contract.

3.8 CLEAN UP

Clean Up: The area of the fence line shall be left neat and free of any debris caused by the installation of the fence.

END OF SECTION