SOW_Sloan_Security_Fence_Rev2_03042024.docx

Sloan Canyon National Conservation Area

Statement of Work for Installation of Temporary Mobile Office Trailer Security Fence

3/4/2024

GENERAL

Project Scope and Purpose – The project involves setting up about 200 feet of chain link fencing, along with a 12-foot chain link gate for vehicle access. This fencing is intended to be in place for an estimated duration of 2.5 years, serving as a support area for Bureau of Land Management (BLM) activities linked to a temporary mobile office trailer. The actual use period of the fence is linked to the timeline needed for building and starting up the permanent Sloan National Conservation Area Visitor Contact Station (VCS). Inside the fenced area, there will be storage for vehicles, a shed, and BLM equipment, as outlined in Exhibit 1.

Project Site – 3100 Nawghaw Poa Road, Henderson, Nevada 89044. The fence will be located approximately 0.7 miles south of the Nawghaw Poa Road / Democracy Drive intersection (latitude: 35.91668 / longitude: -115.12628) – Refer to Exhibit 2.

Period of Performance – This fencing project is to be installed on April 30, 2024. There is a 12-month base year, with 4 6-month options.

Site Access – The Government will provide access to the Contractor to the extent required to perform this work. Contractor will be given the combination for the entry gate located approximately 160-feet south of the Nawghaw Road / Democracy Drive intersection.

The Contractor will provide all labor, equipment, supplies and materials necessary to install the fence and vehicle gate according to the provisions contained herein.

Government-Furnished Equipment (GFE) – There is no GFE involved in this work.

Government-Furnished Material (GFM) – There is no GFM involved in this work.

Site Walk Prior to Mobilization - Prior to initiating any assembly activities, the Contractor and the Government shall meet at the site and perform a project walk to confirm fence locations, alignments, contractor equipment layouts, traffic mitigation, personnel assignments, construction schedules, payroll, payments, and administrative provisions of the contract.

Site Soils – SoilWeb, an online application developed by UC Davis and the USDA Natural Resources Conservation Services indicates that onsite soils are alluvial fan remnants that are slightly hard from 0 to 12-inches below ground surface, between 12 and 30-inches soils are cemented hard pan that is extremely hard and past 30 inches soils are very gravelly sandy loam.

Source Limitations for Chain Link Fences and Gates – Obtain each color, grade, finish, type and variety of component for chain link fences and gates from one source with resources to provide chain link fences and gates of consistent quality in appearance and physical properties.

Government Inspection and Acceptance – Regular inspections will be performed by a qualified Government inspector to ensure compliance with approved design drawings and this Statement of Work. The Contractor will assume liability for all work not performed per the approved drawings and this Statement of Work. The Contractor shall remove, replace or repair any work that is not in conformance with the approved drawings or this Statement of Work at no additional cost to the Government.

USE OF PREMISES

Contractor shall have access of the premises within the designated work site to perform all specified work during the construction period of performance. Contractor’s use of the premises is limited only by the Government right to perform work or to retain other contractors on portions of the projects.

Schedule operations between 7:00 am to 4:00 pm, Monday through Friday, excluding Federal observed holidays. No weekend hours unless approved by the Government at least 72 hours in advance.

No signs or advertisements shall be displayed on the construction site or within the premises unless approved by Government.

Limit use of premises to work in areas indicated. Do not disturb portions of the project site beyond areas in which work is indicated.

Allow for Government occupancy of project site. Government personnel will be continuously occupying areas near portions of the work area. Conduct work in a manner that will minimize needs for disruption of normal Government operations. Secure Government’s written approval of activities that will impact normal Government operations to avoid delays in construction.

PERFORMANCE OF WORK

All vehicles/equipment being used on this project shall be steam cleaned or pressure washed offsite (car wash or other similar site) property prior to arrival at the project site.

Sensitive vegetation will be identified and flagged by the Government prior to construction. Flagged areas will be diligently avoided by the contractor to minimize damage to sensitive vegetation.

All on-site trash will be contained in raven-proof containers and removed daily. All excess materials (i.e. topped railroad ties) must be removed.

Fencing supplies are not considered trash. Excess materials and trash must be removed from the project site on completion of construction and disposed of in a manner, and at a location, approved by the Bureau of Land Management.

Excessive heat (temperatures above 90) may affect work hours; however, any changes to the schedule will be coordinated with the Government at least one day prior to any changes to the schedule.

Regular inspections will be performed by a qualified Government inspector to ensure compliance with approved design drawings, specifications, and this statement of work. The Contractor will assume liability for all work not performed per the approved design drawings and specifications. The Contractor will remove, replace or repair any work that is not in conformance with the approved drawings, specifications and this statement of work at no additional cost to the Government.

The performance period of this Contract shall be 90 calendar days following the date the Government issues project Notice To Proceed.

SITE SAFETY

The work sites are in a dry rural desert environment. Prior to construction, the Contractor shall coordinate with the BLM Southern Nevada District Fire Management Officer at 4701 N. Torrey Pines Drive, Las Vegas, NV 89130; phone 702-515-5135, to outline fire safety requirements at the work site.

The Contractor shall take all reasonable precautions to prevent and suppress fires. In case of a fire, the Contractor shall immediately notify the nearest emergency response center (911) and the Las Vegas Interagency Communication Center at 702-515-5300. If needed, the Contractor shall require all employees, including those of any subcontractor, to work under BLM Fire Management Officials in fire-control and suppression efforts.

Contractor shall be required to verify all materials are within specifications before placing. The Contractor shall be responsible for any damages or spills resulting from the delivery of materials to the site. Surplus materials delivered to the site but not used shall not be permitted to be dumped or temporarily stored onsite, unless a container specifically designated for that purpose is in place prior to delivery and approved by the Contracting Officer.

Contractor will be responsible for the cleanup and restoration of any areas damaged as the result of improper waste disposal, including damage caused by material suppliers.

BLM Law Enforcement

BLM Law Enforcement Emergency: 702-293-8932.

BLM Law Enforcement Non-Emergency: 702-293-8998.

CHAIN LINK FENCE SPECIFICATIONS

1. Chain Link Fabric

a. Steel chain link fence fabric shall not be less than 84-inches high.

b. Mesh and Wire Size: 2-inch mesh, 9 gauge wire.

c. Zinc Coated Fabric: Fabric shall comply with ASTM A392, with zinc coating applied to steel wire before weaving according to ASTM A817. Fabric shall be Type 2, zinc coated (hot dip galvanized) with a minimum zinc coating of 1.20 oz/ft2.

d. Fabric Selvage: provide selvages twisted at top of fence and knuckled at bottom of fence.

2. Fence Framework

a. Framework shall be standard weight, Schedule 40, hot dip galvanized round steel pipe complying with ASTM F1083. Comply with ASTMF1043, Material Design Group 1A, external and internal coating Type A, consisting of not less than 1.8 ounces/ft2zinc.

b. Corner, End and Pull Posts shall be equivalent to a minimum of 2-7/8 inches O.D galvanized Schedule 40.

c. Line posts shall be a minimum of 2-3/8 inch diameter O.D. galvanized Schedule 40 steel pipe. Posts shall be spaced equidistant in the fence line with a maximum spacing of 10 feet on center.

d. Post Brace Rails shall be equivalent to a minimum of 1-5/8 inches O.D. galvanized Schedule 40 steel pipe. Provide brace rail with truss rod assembly for each gate, end, and pull post.

e. The fence will be supported by galvanized steel construction barrier panels or similar structure. The panels will be weighed down by a minimum of two sixty-pound sandbags (sand and bags are to be provided by the contractor) deployed every 12 feet.

3. Tension Wire

a. Provide metallic Coated Steel marcelled Tension Wire, 7 gauge (0.177 inches) complying with ASTM A824. Galvanizing shall be Type 2 with a minimum zinc coating of 1.20 ounces/ft2.

4. Barbed Wire

a. Provide Type 1 three strand outrigger arm 45 degrees (from the vertical plane) on top of all fencing and gates. Outrigger arm shall be angled to the outside of the fenced area. Barbed wire outrigger arms shall be in compliance with ASTM F626, pressed steel, hot dip galvanized after fabrication, minimum zinc coating of 1.20 ounces/ft2, capable of supporting a vertical 250-pound load.

b. Provide three (3) strands of Zinc Coated Steel Barbed Wire at the top of all fencing and gates, complying with ASTM A121. Barbed wire shall be standard Size and Construction: 0.099-inch diameter line wire with 0.08 inch diameter, 4- point round barbs (or 2-point, if 4-point is not available locally) spaced not more than 5-inches on center.

5. Fittings

a. Provide post caps for all posts. Terminal Post Caps, Line Post loop Tops, Rail and Brace Ends, Boulevard Clamps, and Rail Sleeves shall be in compliance to ASTM F626, pressed steel hot dip galvanized after fabrication having a minimum zinc coating of 1.20 ounces/ft2.

b. Tension and Brace Bands: Hot dip galvanized pressed steel complying with ASTM F626, minimum steel thickness of 12 gauge (0.105 inches), minimum width of 0.75-inches and minimum and minimum zinc coating of 1.20 ounces/ft2. Secure bands with 5/26-inch galvanized steel carriage bolts.

c. Truss Rod Assembly: In compliance with ASTM F626, 3/8-inch diameter steel truss rod with a pressed steel tightener, hot dip galvanized with minimum zinc coating of 1.20 ounces/ft2. Assembly shall be capable of withstanding a tension of 2,000 pounds.

d. Tension Bars shall be in compliance with ASTM F626. Provide hot dip galvanized steel one-piece bars, with a length 2-inches less than the fabric height. Minimum zinc coating of 1.20 ounces/ft2. Bars for 2-inch mesh shall have a minimum cross section of 3/16-inch by ¾-inch.

e. Tie Wire Hog Rings: Provide hot dip galvanized steel wire, minimum zinc coating of 1.20 ounces/ft2, 9 gauge in compliance with ASTM F626.

6. Swing Gate

a. Provide one opening with an 8 x 12 ft. single swing gate at the location shown on Exhibit 3. Contractor shall coordinate final gate length, location, and swing direction with Government prior to beginning fence construction.

b. Match gate fabric to that of the fence system.

7. Additional Specifications

a. Gateposts shall be a minimum of 2-7/8-inch diameter O.D., hot dip galvanized Schedule 40 steel pipe, complying with ASTM F1083.

b. Frame members shall be spaced no greater than 8-feet apart vertically and horizontally.

c. Protect welded joints by applying zinc-rich paint in accordance with ASTM Practice A780.

d. Hardware: Provide hinges, latches permitting operation from both sides of gate, and keeper for the gate. Fabricate latches with integral eye openings for padlocking; padlock shall be accessible from both sides of gate.

EXECUTION

1. Preparation

a. Verify the layout information for chain link fences and gates with Government in relation to property survey and existing structures. Verify dimensions by field measurements.

b. Stake locations of fence lines, gates, and terminal posts. Do not exceed line of site between stakes. Indicate locations of any known underground structures, benchmarks, and property monuments.

c. Clear, grub, and grade fence line, removing debris and providing a 1.5-foot clear area on either side of the fence.

2. Framework Installation

a. Tension wire shall be installed 4-inches up form the bottom of the fabric and 4-inches down from the top of the fabric. Tension wire shall be stretched taut, independently and prior to the fabric, between terminal posts and secured to the terminal post using a brace brand. Secure the tension wire to each line post with a tie wire.

b. Post bracing assemblies: Install according to ASTM F567, maintaining plumb position and alignment of fencing. Install braces at end and gate posts and at both sides of corner and pull posts. Locate horizontal braces at two-thirds fabric height on fences without top rail. Install so posts are plumb when diagonal rod is under proper tension.

3. Chain Link Fabric Installation

a. Chain link fabric: Install fabric to outside of the framework. 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-inch carriage bolts spaced no greater than 12-inches on-center. Chain link fabric shall be free of sag and secured to the line post with tie wires spaced no greater than12-inches on-center. Secure fabric to the tension wire with hog rings spaced no greater than 18-inches on-center.

b. Fabric shall be pulled tight so that the maximum deflection of the fabric is 2-inches when 50 pounds of pull is exerted perpendicular to the center of the panel.

c. Tie wire shall be wrapped 360 degrees around the post or rail and the two ends twisted together three full turns. Excess wire shall be cut off and bent over to prevent injury.

d. The bottom of the fence fabric shall meet the finished grade such that it prevents surreptitious human entry.

4. Barbed Wire Installation

Barbed Wire to be stretched taut, free of sag, between terminal posts and secured in slots provided on the line post barb arms. Attach each strand of barbed wire to the terminal post using the brace band.

5. Gate Installation

Installation of swing gates shall be in compliance with ASTM F567. Coordinate direction of swing with Government prior to beginning fence construction. Gates shall be plumb in the closed position having a bottom clearance of 3-inches above grade. The ground under the swing arc shall be graded to allow for operation.

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.

7. Electrical Grounding

The fence shall be grounded by a 8-foot ground rod connected to the fence fabric with grounding clamps and number 10 gauge wire.

Removal

The Government will issue a 30-day notice when the fencing is no longer needed at which time the Contractor will proceed to remove the fencing.

Contractor will be responsible for the cleanup and restoration of any areas damaged as the result of improper waste disposal, including damage caused by material suppliers during clean-up/removal.

EXHIBIT 1

MOBILE TRAILER

EXHIBIT 2

SLOAN NATIONAL CONSERVATION AREA

SITE ACCESS

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