A06_Specifications.docx

US BUREAU OF LAND MANAGEMENT

TABOR CREEK RANGE IMPROVEMENT PROJECT

Wells, Nevada

SPECIFICATIONS

SECTION TITLE

DIVISION 01 – GENERAL REQUIREMENTS

DIVISION 03 – CONCRETE

DIVISION 31 - EARTHWORK

DIVISION 32 – EXTERIOR IMPROVEMENTS

BUREAU OF LAND MANAGEMENT (BLM) 01/18/18

SECTION 011000 – SUMMARY

Much of this Section consists of Project-specific data. Examples given in the model text in the Evaluations illustrate possible Section content; use the model text to develop text for specific Project requirements. See Evaluations.

GENERAL

SUMMARY

Section Includes:

Adjust list below to suit Project.

Project information.

Work covered by Contract Documents.

Submittals-General.

Work Scheduling.

Use of premises.

Public use of site.

Work restrictions.

Definitions.

Delivery, Storage, and Handling.

Site Conditions.

PROJECT INFORMATION

Project Identification: Tabor Creek Recreation Area Range Improvements Project Location: Tabor Creek Recreation Area is located northeast of Wells, Nevada. The center of the site is located generally at 41° 25’ 27” N, -115° 5’ 8” E and is in the township, range, and section, 29 T, 41 N., R. 61 E.

WORK COVERED BY CONTRACT DOCUMENTS

The Work consists of the following:

Provide all labor, materials, and equipment to demolish, replace and install new barbed wire fence (4-wire) in accordance with contract drawings, details, and specifications.

Contractor shall remove and dispose of 10,445 linear feet of existing barbed wire in accordance with contract drawings, specifications, and details.

Contractor shall remove, dispose of, and replace 32,415 linear feet of existing barbed wire fence in accordance with contract drawings, specifications, and details.

645 linear feet of fencing to be replaced shall be Modified Steel Pipe fencing as noted on drawings.

31,770 linear feet of fencing to be replaced shall be 4-wire barbed wire fence as noted on drawings.

Contractor shall install 6,271 linear feet of new 4-wire barbed wire fence in accordance with contract drawings, specifications, and details.

All fence removal work includes any existing end panels, stress panels, corner panels, gates and other appurtenances that occur along the fence line designated for demolition and/or replacement in accordance with contract drawings.

All new fencing work includes installation of stress panels, gates, end panels and corner panels in accordance with contract drawings, specifications, and details.

Provide all labor, materials, and equipment to install three new cattle guards in accordance with contract drawings, details, and specifications.

Provide all labor, materials, and equipment to demolish and dispose of one existing cattleguard in accordance with contract drawings, specifications, and details.

Provide all labor, materials, and equipment to remove, dispose of, and replace three existing cattle guards with three new cattle guards in accordance with contract drawings, details, and specifications.

Provide all labor, materials, and equipment to install two new metal swing gates in accordance with contract drawings, specifications, and details.

The exact length and orientation of the sections of fence to be removed and replaced will be delineated and staked/flagged prior to construction and finalized during kickoff meeting. Total linear feet of fencing shall not exceed quantities called out in the drawings and specifications.

Contractor shall install Type “B” water crossings as shown in the drawings.

SUBMITTALS-GENERAL

Fire Safety Plan Construction Schedule Delivery Schedules Contractor Personnel Roster Proposed Site Laydown and Staging Areas

WORK SCHEDULING

Work Schedule: The work schedule shall be submitted at the pre-work conference. When requested, the Contractor shall submit an updated schedule within 3 calendar days. As a minimum, the starting and completion dates for all major work items must be included.

USE OF PREMISES

Retain one of two paragraphs below. Retain first paragraph if Project is on a vacant site or in an unoccupied building being renovated and there are no Government-occupancy requirements. Retain second if Government will occupy portions of an existing site or building. Revise to suit Project.

Contractor shall have full use of premises for construction operations, including use of Project site, during construction period. Contractor's use of premises is limited only by Government right to perform work.

Insert fire plan when appropriate. Select applicable phrase and insert specific requirements not covered by FAR clause 52.23610.

Schedule operations so that Work is conducted during regular office hours.

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

All on-site trash will be contained in raven-proof containers and removed daily. All excess materials must be removed. Fencing supplies are not considered trash. Excess materials and any 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 Contracting Officer/COR.

Retain paragraph and subparagraphs below if Project site will be accessible to other parties or if parts of a building being renovated will be occupied during construction; revise to suit Project. See Evaluations for model text.

Insert additional paragraphs specifying specific limitations on use of existing building. See Evaluations for model text.

PUBLIC USE OF SITE

Contractor shall at all times conduct his operations to ensure the least inconvenience to the public. Road and Campground closures will be permitted, when required, upon specific approval of Contracting Officer.

Insert other paragraphs, as appropriate, describing additional limitations on use of site by construction personnel.

WORK RESTRICTIONS

On-Site Work Hours: Work shall be generally performed during normal business working hours of 7:00 a.m. to 4:30 p.m., Monday through Friday, except when otherwise indicated.

Work on Saturdays, Sundays, Federal holidays or at night may not be performed without prior consent from the Contracting Officer. Submit requests 48 hours in advance of the work to the Contracting Officer for approval.

No signs or advertisements (except those specified) shall be displayed on the construction site or within the premises unless approved by the Contracting Officer.

Existing Utilities Existing Utilities: Notify Contracting Officer and utility companies of proposed locations and times for excavation.

Contractor shall be responsible for locating and preventing damage to known utilities. If damage occurs, repair utility at no additional expense to the Government.

If damage occurs to an unknown utility, repair utility. An equitable adjustment will be made in accordance with the Changes clause of the contract.

Delete first paragraph and subparagraphs below if no existing utilities. Coordinate with requirements for temporary utilities specified in Division 01 Section "Temporary Facilities and Controls."

Existing Utility Interruptions: Do not interrupt utilities serving facilities occupied by Government or others unless permitted under the following conditions and then only after arranging to provide temporary utility services according to requirements indicated:

Edit first subparagraph below to suit Project.

Notify Contracting Officer not less than two days in advance of proposed utility interruptions.

Do not proceed with utility interruptions without Contracting Officer’s written permission.

Smoking is not permitted within buildings or within 25 feet of entrances, operable windows, or outdoor air intakes.

DEFINITIONS

Approval of the submittals is an indication that the Contractor's submittals have been reviewed and that there are no objections, except as noted. Approval of deviations shall apply only to those deviations or omissions from the requirements of the drawings and specifications brought to the Contracting Officer's attention in writing.

DELIVERY, STORAGE, AND HANDLING

Delivery: The Contractor shall protect products incorporated into the work from damage while in transit to the site. Products must be stored in original unopened containers with manufacturer's name, brand designation, and contents legibly indicated.

Storage: The Contractor shall provide temporary storage facilities for products complying with manufacturer’s recommendations which will protect them from damage until installation on the project and final acceptance.

Handling: The Contractor shall load and unload products in such a manner as to protect them from damage until installation on the project.

SITE CONDITIONS

Access Roads: Access roads are shown on the attached plans. Vehicle travel is permitted along the fence line. Maps of these areas are provided. The topography along the fence line may limit or prevent travel.

Rocky ground: The project site includes some rock formations which prevent posts from being driven. A rock drill may be required at these work sites to assure proper installation of posts.

Environmental Considerations:

No blading or scraping of the ground along the fence line or on any Bureau of Land Management administered land is permitted. Access roads shall not be constructed along fence lines or to the job sites, but travel along the fence line is permitted.

Rocky conditions exist along portions of the fence. It is highly recommended that interested contractors attend the site visit or inspect the site before offering a quote.

No cross-country travel with motorized vehicles shall take place when ground is muddy causing ruts to form. The Contractor shall repair all ruts and scarred ground created by construction, repair, or removal as directed by the Contracting Officer.

Camping at or near the job site is permitted as long as it does not exceed a maximum of 14 days in any one location. Camping is prohibited within 100 yards of any isolated water source springs, seeps, water troughs, windmills, small reservoirs, etc. Toilet facility requirements shall follow all Federal and State regulations. When a camp site is no longer needed, all garbage must be removed and properly disposed of.

Clean-up: All trash and excess materials must be removed from the project site on completion of construction and disposed of in a manner, and at a location, approved by the Contracting Officer.

Cultural Considerations: Because fragile and irreplaceable cultural resources may be present in the area, project activities and any other action which causes disturbance of the earth's surface shall be limited to those areas approved by the BLM. Deviations from routes flagged or shown on the drawings are not allowable without prior approval of the Contracting Officer. The Contractor shall insure that he, his employees, or his representatives do not collect archaeological artifacts. Should the condition of the cultural resources in the area be altered during construction due to unauthorized activity by the Contractor or his employees, the Contractor shall be responsible for all costs of mitigating the cultural resources involved. If deterioration of the archaeological sites is found to be occurring during the construction phase, work on the project shall be terminated until a data recovery plan is prepared and completed in accordance with the National Historic Preservation Act. The Contractor shall immediately bring to the attention of the Contracting Officer any and all cultural resources including, but not limited to, historic and prehistoric sites or artifacts, buried artifacts, and buried features such as fire pits, burials, and house floors discovered as a result of construction operations. The Contractor shall immediately suspend all activities that might harm the object(s) and shall leave such discoveries intact until 1nstructed to proceed by the Contracting Officer. Pursuant to 43 CFR 10.4(g) the Contractor must notify the Contracting Officer by telephone, with written confirmation, immediately upon the discovery of human remains, funerary items, sacred objects, or objects of cultural patrimony. Further, pursuant to 43 CFR 10.4(c) and (d), the Contractor must stop activities in the immediate vicinity of the discovery and protect it from construction activities for 30 days or until notified to proceed by the Contracting Officer.

Fire Safety:

The work sites are in a dry rural desert environment. Prior to construction, the Contractor shall coordinate with the BLM Elko District Fire Management Officer at 3900 Idaho Street, Elko, NV 89801; at 775-753-0200, to outline fire safety requirements at the work site. After coordination with BLM Elko District Fire Management Officer, the Contractor shall provide the BLM with a Fire Safety Plan outlining all Contractor actions, materials, equipment, and procedures to prevent and mitigate fires during the course of work.

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 Elko Interagency Dispatch Center at 775-748-4000. If needed, the Contractor shall require his/her employees and 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.

PRODUCTS (Not Used)

EXECUTION

Section Includes:

Adjust list below to suit Project.

Project Meetings.

Preparation.

Disposal of Debris.

PROJECT MEETINGS

Pre-Work Conference:

A Pre-Work Conference will be held prior to the start of work. The Contractor will be notified in advance of meeting time, date and place. The purpose will be to review required work, project drawings and specifications, construction schedules, payroll and payments, and administrative provisions of the Contract.

The Contractor, subcontractors, and the persons responsible for coordination of the work shall be present at the meeting.

The Contractor shall be prepared to summarize and explain procedures planned for the project.

Progress Meetings Shall be held at the project site, or as determined by the Contracting Officer.

Meetings may be called by either the Contracting Officer or the Contractor. Request shall state who should attend and include an agenda.

The Contractor or the Contractor’s authorized representative shall be present during this inspection.

Final Inspection To be held at the project site, or as determined by the Contracting Officer.

Notify the Contracting Officer in writing at least 3 working days before the completion date so the Government can schedule final inspection.

The Contractor or the Contractor’s authorized representative shall be present during this inspection.

PREPARATION

Work Layout: The Government will mark beginning and ending locations for new fence or fence posts within sight distance to give the Contractor lines and angles necessary to execute the work specified under the Contract. The Contractor shall, immediately upon entering the project site for the purpose of beginning work, locate all reference marks and take such actions to prevent their destruction.

DISPOSAL OF DEBRIS

Requirements: Items or debris not designated as salvage for the government, shall become the property of the Contractor. The Contractor is responsible for the disposal of materials in a legal manner and the payments of all disposal fees. Burning of removed materials is not permitted on the work site.

END OF SECTION 011000

SECTION 034000 - PRECAST STRUCTURAL CONCRETE

GENERAL

SECTION REQUIREMENTS

Submittals: Product Data, Shop Drawings and structural analysis data signed and sealed by a qualified professional engineer.

Fabricator Qualifications: Fabricator is designated a PCI-certified plant, Product Group C.

PRODUCTS

PERFORMANCE REQUIREMENTS

Comply with ACI 318 (ACI 318M); PCI MNL 120, "PCI Design Handbook - Precast and Prestressed Concrete"; PCI MNL 116, "Manual for Quality Control for Plants and Production of Precast and Prestressed Concrete Products"; AWS D1.1/D.1.1M; and AWS D1.4.

Structural Performance: Provide precast structural concrete units capable of withstanding design loadings indicated in Section 323153 Cattle Guards.

MATERIALS

Reinforcing Bars: ASTM A 615/A 615M, Grade 60 (Grade 420), deformed.

Portland Cement: ASTM C 150, Type II of one color and from same mill.

Normal-Weight Aggregates: ASTM C 33, with coarse aggregates complying with Class 4S.

Air-Entraining Admixture: ASTM C 260.

Coloring Admixture: ASTM C 979/C 979M.

Chemical Admixtures: ASTM C 494/C 494M, water reducing. Do not use admixtures containing chlorides.

CONCRETE MIX

Proportion normal-weight concrete mixes to provide the following properties:

Compressive Strength: 4000 psi (34.5 MPa) at 28 days.

Water-Cementitious Materials Ratio: 0.45 maximum.

Air Content: 5% +/-1% 145 PCF Max Minimum 4-inch slump Concrete Mixing: Comply with ASTM C 94.

PRECAST UNITS

Fabricate precast concrete units straight and true to size and shape with exposed edges and corners precise and true.

Panel faces shall be free of joint marks, grain, and other obvious defects. Corners, including false joints, shall be uniform, straight, and sharp.

Finishes: Standard for formed surfaces.

No slump or strength testing cylinders will be required, but factors affecting rejection include but are not limited to exposed reinforcement steel, voids larger than 2” across and substandard aggregate.

EXECUTION

INSTALLATION

Install precast units level, plumb, square, true, and in alignment within the recommended erection tolerances of PCI MNL 135.

Shore and brace precast concrete units to maintain location, stability, and alignment until permanent connections are installed.

Clean exposed surfaces of precast concrete units after erection to remove markings, dirt, and stains.

END OF SECTION 034000

SECTION 311100 – CLEARING AND GRUBBING

GENERAL

SUMMARY

Section Includes: Clearing and grubbing of areas for fences, roadways, parking areas, pipelines, and structures. Clearing of vegetation, and grubbing of stumps, roots, and debris; disposal of unutilized materials; and other incidental work related to preparing the site for later use.

MEASUREMENT AND PAYMENT

Basis of Payment: Prices and payment will be full compensation for the work described in this section. Payment will be made under:

DEFINITIONS

Clearing: Consists of the felling, trimming, and cutting of obstructions such as trees into sections and the satisfactory disposal of the trees and other surface vegetation designated for removal, including down timber, snags, brush, and rubbish occurring in the areas to be cleared.

Grubbing: Consists of the removal and disposal of below-surface stumps, roots larger than 3-inches (75 millimeters) in diameter, and matted roots from the designated grubbing areas.

Hazardous Waste: Substances likely to cause death or injury by reason of being explosive, flammable, poisonous, corrosive, oxidizing, irritating, or otherwise harmful; and includes, but not limited to flammable dust, flammable fiber, combustible liquid, dangerous chemical, flammable gas, liquefied flammable gas, and flammable liquid.

PROJECT/SITE CONDITIONS

Work Limits: Work limits will be staked, and control points established by the Government. Total width of clearing shall not exceed eight feet from either side of the fence alignment. Scalping of topsoil during clearing operations will not be permitted.

Burning of Slash: Not permitted.

Landscape Preservation: Protect vegetation outside the work limits from injury. Existing trees and shrubs shall not be disturbed or damaged.

SUBMITTALS

Tree Wound Paint: Submit three copies of manufacturer's literature and one container of tree wound paint that is to be used on this project.

Herbicide: Submit three copies of manufacturer's literature and one container of herbicide to be used on this project.

Records: Submit three copies of written permission to dispose of materials other than salable timber on private property.

PRODUCTS

PREPARED PRODUCTS

Tree Wound Paint: Bituminous based material of standard manufacture specially formulated for tree wounds.

EQUIPMENT

Spark Arresters: Meet requirements of the U.S. Forest Service Spark Arrester Guides

EXECUTION

PROTECTION

Roads and Walks: Keep roads and walks free of dirt and debris at all times.

Utility Lines:

Notify the Contracting Officer immediately of damage to or an encounter with an unknown existing utility line.

Repair damage to existing utility lines that are indicated or made known to the Contractor prior to the start of clearing and grubbing operations.

When utility lines which are to be removed are encountered within the area of operations, notify the Contracting Officer 72 hours prior to interruption of the service.

CLEARING

Clear trees, stumps, roots, brush, and other vegetation in areas to be graded; cut off flush with or below the original ground surface, except such trees and vegetation indicated or directed to be left standing.

Cuts more than 1-1/2 inches (40 mm) in diameter shall be painted with an approved tree-wound paint.

Trees and vegetation to be left standing shall be protected from damage incident to clearing, grubbing, and construction operations by the erection of barriers or by such other means as the circumstances require.

GRUBBING

Material to be grubbed, together with logs and other organic or metallic debris not suitable for foundation purposes, shall be removed to a depth of not less than 18 inches (450 mm) below the original surface level of the ground in areas indicated to be grubbed and in areas indicated as construction areas under this contract, such as areas for cattle guards. Depressions made by grubbing shall be filled with suitable material and compacted to make the surface conform with the original adjacent surface of the ground.

EXPLOSIVES

The use of explosives is prohibited.

DISPOSAL

Material shall be removed from the project site and legally disposed of off government-controlled lands. Burning will not be permitted.

END OF SECTION 311100

SECTION 323126 – WIRE FENCES AND GATES

GENERAL

SUMMARY

Section Includes: Furnishing and installing wire fences, appurtenances, and drainage crossings at the locations shown on the drawings unless staked otherwise.

Related Requirements:

Section 311100 – Clearing and Grubbing.

MEASUREMENT AND PAYMENT

Basis of Payment: Prices and payment will be full compensation for the work described in this section. Payment will be made under:

REFERENCES

American Society for Testing and Materials:

ASTM A 121: Zinc-Coated (Galvanized) Steel Barbed Wire ASTM A 702: Steel Fence Posts and Assemblies, Hot-Wrought

SUBMITTALS

Certificates of Conformance: Submit three copies of written certification from the manufacturer that the Contractorfurnished fence posts, droppers, in-line strainers, crimp sleeves and wire conform to the requirements of this section. Contractorfurnished gates and accessories shall be approved by the Contracting Officer prior to installation.

QUALITY ASSURANCE

Contractor-furnished gates and accessories will be approved by the Contracting Officer before installation.

PROJECT/SITE CONDITIONS

Access roads shall not be constructed along fence lines and to the construction site unless written approval is granted by the Contracting Officer. Cross country travel with wheeled or tracked vehicles shall be only to and along fence lines.

PRODUCTS

MATERIALS

Barbed Wire: A strand of two 121/2ga galvanized wires twisted together with 2point barbs of 14ga wire spaced 4 inches apart. Wire and barbs shall be zinccoated steel, with a zinc coating of at least 0.3 oz/ft2 of coated surface area. The minimum breaking strength of each wire shall be 950 lbforce. The barbed wire shall conform to ASTM A 121.

Barbless Wire: A strand of two 121/2ga, galvanized wires twisted together. Wire shall be zinccoated steel wire of at least 0.3 oz/ft2 of coated surface area. The minimum breaking strength of each wire shall be 950 lbforce. The barbless wire shall conform to ASTM A 121.

High-Tensile Smooth Wire: Single strands of 12-1/2-ga, class 3 zinc coating, grade 180 according to ASTM A 854.

Wire Fence Stays: Twisted wire fence stays, 30-inch max length, manufactured from smooth galvanized 9ga wire.

Wood Gate Stays: Sound and straight pieces, 21/2 to 31/2inch diameter. Treatment with preservative is not required. Stays shall be of uniform length sufficient to extend a minimum of 3 inches above the top fence wire 6 inches below the bottom wire. Total length shall be 4 feet 0 inches.

Construction grade, either rough sawn or finished.

Sound single-stem members.

A slight bend in one plane is acceptable.

Honey locust, western red cedar (full stem with bark removed), juniper, osage orange, and white oak are acceptable without treatment.

Staples: Brightfinish or galvanized 9 gauge with slash-cut points 2 inches long.

Steel Fence Posts: ASTM A 702; green with white tops "T" bar type, with a welded or riveted anchor plate (top 18-inches from bottom of post). Furnish with cliptype wire fasteners (punched tabs for fastening wires are not acceptable). Steel posts shall be manufactured from wrought, rail, or new billet steel, and shall have a minimum weight of 1.33 lb/lin ft. exclusive of anchor plate. The anchor plates shall weigh a minimum of 0.67 pounds plus or minus 5 percent and be a minimum of 18 inch2 in area.

Steel Panels and Braces: One-inch square tube with .065-inch wall thickness and butt-welded joints.

Steel Pipe: ASTM A 53 or F 1083 and as shown on Drawings. Post pipe shall be 2-inch, schedule 40 (2.375-inch O.D., 3.65 lb/ft); brace pipe, 1-1/2 inch, schedule 40 (1.660-inch O.D., 2.27 lb/ft). Brace clamps and fittings shall be galvanized.

Wire Gates: Furnish with the same type wire and wire spacing as the fence. Wood stays for wire gates shall be sound and straight pieces, 3inch minimum diameter, and of the species listed under posts and braces.

Mechanical Gate Closers: Assembly must include the following salient features:

A rigid steel strap or 9ga smooth wire loop 6 inches from the ground securely connected to the gate post and shaped so the gate stay shall be securely held in place.

An adjustable cable or chain, or rigid steel strap fastened to a cam lever device located 6 inches from the top of the gate post. The closer shall be capable of securely holding the gate stay in place.

Brace Wires:

Double loop, four wires of 9ga smooth, galvanized wire or two wires of galvanized, 121/2ga barbless wire, twisted tight.

The minimum weight of zinc coating for 9gauge wire shall be at least 0.4 oz of zinc/ft2 of coated surface area; for 121/2ga wire at least 0.3 oz of zinc/ft2 of coated surface area.

Wires shall be Type I, Class 1 according to ASTM A 641.

Miscellaneous Wire: Wire for ties, gate loops and fastening wood stays shall be 9 or 121/2ga galvanized wire.

Steel Stakes: Fabricate steel stakes of 16inch lengths of No. 4 rebar, as shown on the drawings.

ClipType Wire Fastener: Galvanized wire, 8 gauge.

Crimp Sleeves: Shall be of acceptable manufacture for use on high-tensile smooth wire.

Post Grout: Furnish a rapid setting commercial product manufactured for anchoring posts.

EXECUTION

PREPARATION

Clearing: Maximum clearing width is 8 feet on each side of the fenceline. Provide minimum disturbance to existing grass and sod. Fencelines shall not be bladed or dozed.

INSTALLATION

Steel posts shall not be used for end panel, corner panel, gate panel, or stress panel posts. Drive steel posts.

Driving Posts:

Steel Posts: Drive into the ground to the depth shown on the drawings or until the anchor plate is slightly below the ground surface. Posts shall be driven plumb. When rock formations prevent driving, remove anchor plate and excavate or drill holes a minimum of 18 inches deep and slightly larger than the diameter of the post, then drive post solidly into the rock formation.

Corner Post, Gate Post, Corner Panel, Brace, and End Panel (Stress Panel) Assemblies: Construct as shown on the drawings or as staked in the field. Construct stress panels on crests of hills, and a maximum of 1320 feet centertocenter for barbed wire sections. Construct end panels at the end of fence runs unless shown otherwise on the drawings.

Wire:

Stretch tightly and securely attach to steel posts with standard wire clips.

Wire is properly stretched when it is springy to the touch.

Terminate wire at each end post, gate post, corner post, or stress panel.

Wrap wire around the post two times and tie off by wrapping around the incoming wire a minimum of four times.

Brace Wire: Double-loop and twist tight with a stick. For steel pipe panels, each wrap shall be looped once around the post. Leave one end of the stick long enough to fasten behind the horizontal brace to prevent wire from unwinding.

Gates: Installed according to the Work Data Sheet, the drawings, and as recommended by the manufacturer when applicable. Shall be constructed and installed according to the drawings. Mechanical gate closures shall be installed on all gates. ALL GATES SHALL BE 4 WIRES WITH FIVE GATE STAYS.

Mechanical Gate Closers: Line up the latch with the gate. Adjust latch assembly after installation so that the latch does not bind, and the gate hangs properly.

Drainage Crossings:

Type B: Construct Type B drainage crossings as shown on the drawings, with the main fence dead-ended at least 17 feet back from the edge of the channel bank. Construct a rail and post fence panel to the edge of the bank to contain livestock and construct an auxiliary wire fence across the channel bottom, as shown on the drawings.

END OF SECTION 323126

DATA WORKSHEET

for

SECTION 323126 WIRE FENCES AND GATES

Fence Type: Barbed Wire Fence (4-Wire).

Type of top wire: 12-1/2 gauge barbed.

Type of intermediate wire: 12-1/2 gauge barbed.

Type of bottom wire: 12-1/2 gauge barbless.

Wire locations/dimensions in inches (spacing):

D: 10-inches C: 8-inches B: 6-inches A: 16 inches Wire “A” is measured from the ground up, successive wired are measured from the previous wire.

Line post spacing (L): 16 ft 6 inches Type of Stays: Twisted Wire Stay spacing (l): one stay centered between each line post.

Length of steel posts (H2): 5 ft 6 inches Depth of steel posts in ground (h2): 1 ft 6 inches Number of mechanical gate closers: 7 Type and no. of corner panels: Three Post Corner Panel at each change in direction.

Type and no. of gates: Seven 16.5 feet Type A Wire Gates.

Note: All “T” posts shall be white tipped.

SECTION 323126.1 – MODIFIED STEEL PIPE FENCE

1. GENERAL

SUMMARY

Section Includes:

Steel pipe rail fence.

INFORMATIONAL SUBMITTALS

Product Test Reports: For pipe posts and railing, for tests performed by a qualified testing agency, according to ASTM A 53 Grade B or API 5L, either Grade A or B.

PRODUCTS

POSTS AND RAILING

Casing: Materials specified shall be new and free from defects. Used material may be substituted when free of bends or gouges greater that 1/32 – inch and otherwise meeting the minimum requirements specified in paragraph B, below and approved by the government.

Drill Pipe: Either seamless or electricwelded black steel pipe. Each section of drill pipe shall be marked to show the diameter, standard number, weight, wall thickness, and United States manufacturer. Physical dimensions shall be as follows for diameter indicated on drawings:

DRILL PIPE

Pine Pole Rails Shall be 21 feet in length and 4-inches in diameter.

Shall be peeled and pressure treated meeting AWPA P5-01.

MISCELLANEOUS MATERIALS

Welding Rods and Bare Electrodes: Select according to AWS specifications for metal alloy welded.

FABRICATION

Cut, drill, and punch metals cleanly and accurately. Remove burrs and ease edges to a radius of approximately 1/32 inch (1 mm) unless otherwise indicated. Remove sharp or rough areas on exposed surfaces.

Welded Connections: Cope components at connections to provide close fit. Weld all around at connections.

Use materials and methods that minimize distortion and develop strength and corrosion resistance of base metals.

Obtain fusion without undercut or overlap.

Remove flux immediately.

At exposed connections, finish exposed surfaces smooth and blended, so no roughness shows after finishing and welded surface matches contours of adjoining surfaces.

Comply with AWS D1.1/D1.1M for tolerances, appearances, welding procedure specifications, weld quality, and methods used in correcting welding work.

All finished welds shall be sprayed with flat black or dark brown primer paint.

EXECUTION

INSTALLATION, GENERAL

Construct modified steel pipe fence in accordance with drawings.

Set posts and railings accurately in location, alignment, and elevation; measured from established lines and levels and free of rack.

Set posts plumb within a tolerance of 1/16 inch in 3 feet (2 mm in 1 m).

Installation of top rail shall be smooth and continuous. Posts shall be constructed of single un-spliced lengths of pipe.

For structures on curves, either horizontal or vertical, the barrier shall conform to the curvature of the structure.

The barrier shall be erected, true to line and grade. Posts shall be vertical, parallel with and deviate from the vertical for the full height not exceeding 1/8 inch.

END OF SECTION 323126.1

WORK DATA SHEET

For

MODIFIED PIPE/WOOD RAIL FENCE

Pole locations/dimensions in inches (typical spacing):

Mod Steel/Wood Rail Fence

C. 44”

B. 28” and 32” alternating (see drawing spec)

A. 14” and 18” alternating (see drawing spec) Note: C rail is steel pipe

(All spacing is from centerline pole to centerline pole)

(Pole “A” is measured from the ground up. Successive poles are measured from previous pole.)

SECTION 323153 – CATTLE GUARDS

GENERAL

SUMMARY

Section Includes: Furnishing and installing cattle guard grids, bases and foundations, and accessories.

Related Requirements:

Section 034000 – Precast Structural Concrete.

Section 311100 – Clearing and Grubbing.

Section 323126 Wire Fences and Gates.

MEASUREMENT AND PAYMENT

Basis of Payment: Prices and payment will be full compensation for the work described in this section. Payment will be made under:

DESIGN REQUIREMENTS

Size: Design cattle guards to have a clear travel roadway width for vehicular treads of not less than 14 feet, with the length along the line of traffic not less than 8 feet.

Foundations: Cattle guard foundations must be precast concrete. Construct the grill units of welded steel members to form a rigid deck. No cleanouts.

Capacity: H-20.

SUBMITTALS

Manufacturer's Literature: Submit three copies of the manufacturer's descriptive data including design data for commercial cattle guard grids.

Certificates: Submit three copies of written certification from the supplier of the Contractor-furnished cattle guards that the cattle guards to be used on this project conform to the requirements of this specification section.

Qualification Record: Submit two copies of the required procedures qualification record.

Welding Procedure Specification: Submit two copies of the welding procedure specification.

QUALITY ASSURANCE

Welder Qualifications: As a minimum, the welder shall meet the qualifications for: Electrodes up to and including E 7018 according to AWS D1.1, Section 5; Steel thickness 1/8 to 3/8 inch (3 to 10 mm); fillet, groove, low-hydrogen welding; or meet code qualifications for structural plate and rolled structural shapes.

PRODUCTS

MATERIALS

Constructed of materials as shown on the drawings and described in these specifications. Design loading of grids and dimensions shall be as shown on the drawings and the Work Data Sheet. New material shall be used in the fabrication of cattle guards.

Hot-rolled structural steel sections: ASTM A 36/36M or AASHTO M 183.

Coldformed rails: ASTM A 242/242M. This type of rail shall be welded with E 7015 or E 7016 electrodes.

Structural tube sections: ASTM A 500, Grade B, Copper Steel or ASTM A 618, Grade 2.

Steel pipe: ASTM A 53, Schedule 80 Crane rails: ASCE 60 crane rail.

Zinc-plated connectors, bolts and nuts: ASTM A 307, or SAE Grade 8: SAE J 429.

Anchor clips: Shop Welded.

Galvanized parts: ASTM A 123 for steel shapes and ASTM A 153 for fasteners.

End Wings: Angle Iron End Wing, as shown on the drawings.

Object Markers: Provide Permanent object markers, including hardware. Markers shall be MUTCD Type 2, mounted on steel or treated wood sign posts.

Backfill Material: Select granular road base material, with 100 percent passing a 1-inch (25 mm) sieve and no more than 6 percent passing a No. 200 sieve. Backfill shall be free from rocks, stones larger than 3 inches (80 mm) maximum diameter, sticks, or excess organic materials, and shall be of the best material available onsite.

Paint Color: Federal Safety Yellow or match color no. 13655, Fed. Spec. TT-C-595. Cattle guards shall be painted after fabrication.

FABRICATION

Welding: Accomplished with AWS E 7018 electrodes, except for cold-formed rails.

Steel Cattle Guard Grids: Allwelded construction. Welds shall be secure and complete along both edges of cross pieces and at joints in the frame and shall conform to AWS D1.1.

Paint: Structural steel shall be cleaned according to SSPC SP6. Cattle guard grids and end wings shall each receive a prime and finish coat. Prime coat shall be a lead free, zinc-rich, rustinhibitive alkyd metal primer. Minimum thickness shall be 1-1/2 mils (0.05 mm) dryfilm thickness (DFT). The finish coat shall be an oil alkyd-enamel, gloss paint. Minimum thickness shall be 3 mils (0.10 mm) DFT, applied in two applications.

Cattle Guard Foundations: Construct as specified and shown on the drawings. Refer to Section 034000 Precast Structural Concrete, for concrete specifications.

SOURCE QUALITY CONTROL

Plant Inspection: Contracting Officer will inspect during the Government's working hours. There shall be a Contractor's Representative on the site to answer questions.

Material Marking: Material to be used in the fabrication process shall be labeled, marked, or otherwise segregated from differing material.

Weld Inspection: Quality of the weld shall be "acceptable" under the visual requirements of AWS D1.1, AWS B1.10, and AWS WI, CH16. Unacceptable welds or defects in the welds as detected by visual inspection or by radiographic, penetrant dye, or magnetic particle techniques shall be repaired or removed and replaced by methods acceptable under the applicable AWS welding codes, or the entire piece may be rejected by the Contracting Officer. Repaired or replaced welds shall be re-inspected by the applicable nondestructive testing method.

Sandblast Inspection: The Contractor shall notify the Contracting Officer when and where the grids shall be sandblasted so that the Contracting Officer will arrange an inspection of the sandblasting quality prior to paint application.

EXECUTION

PREPARATION

Clearing: Section 311100 Clearing and Grubbing.

Excavation and Backfill: Initial excavation for cattle guard bases may be made with power equipment, but over excavation shall be avoided. Over-excavated areas shall be backfilled. Drain the area to prevent water from pooling within the excavation. Place backfill in layers not exceeding 6-inches (150 mm) thickness, and mechanically or manually compact each layer to 95 percent of maximum density as determined by AASHTO T 99, Method C before placing the new layer.

INSTALLATION

Precast Concrete Foundation: Prior to casting members, the Contracting Officer shall have 24 hours to inspect the forms, the placement of the reinforcing steel, and features of the fabrication plant. Do not transport precast units until flexural strength is a minimum of 500 psi (3400 kPa); or, if flexural strength tests are not made, until the units are 10 days old. Place precast units on wood pallets during transporting to assure a proper bearing surface.

Grid: Securely bolt cattle guard grids to the bases as shown on the drawings.

Wings: Securely bolt the end wings to the adjacent fence, as shown on the drawings.

Object Markers: Install object markers as shown in the field for each completed cattle guard.

Gates: Install gates according to Section 323126 Wire Fences and Gates.

Backfill: After installation, backfill and compact the cattle guard with approved specified material compacting it to 95 percent of the maximum density according to AASHTO T 99, Method C, and finish the road surface.

END OF SECTION 323353

WORK DATA SHEET

for

SECTION 323153 CATTLE GUARDS

1. Length and width of cattle guards: 8 ft x 14 ft

2. Rail Type: Structural Steel Tubing

3. Rail Size:

a. Dimension A: 2 inches.

b. Dimension B: 3 inches.

4. Clear Spacing Between Rails: 5 inches

5. Stringer Spacing: Dimension D: 20 inches maximum, center to center.

6. Number of Torque Bars Required: 4

7. Number of Equally Spaced Anchor Clips Per Side: 3

8. Type of Base: Precast Concrete.

9. Depth of Pit: 12 inches

10. Type of Wing: Angle Iron End Wing image1.png