607.01 Description
This work is constructing, removing, and resetting barbed wire, combination barbed and woven wire, chain link fences and gates.
607.02 Materials
Furnish materials in accordance with the following section and subsection requirements: Chain Link Fence .................................................... 712.01 Hydraulic Cement Concrete .................................... 551 Wire Fence .............................................................. 712.02 Fence material acceptance test samples will be taken from the materials delivered to the project.
607.02.1 Snow Fence
Furnish all timbers, lumber and hardware as specified.
1.Lumber used must meet the Western Wood Products Association requirements, or equivalent grading rules. Grade lumber with a nominal thickness of 2 inches (50 mm) as structural light framing #2 grading or better. Grade lumber with a nominal thickness of 1- inch (25 mm) as boards #3 common or better. All lumber must meet ASTM D245.
2.All treated material must meet the requirements of Subsection 706.04 or the special provisions.
607.03 Construction Requirements
607.03.1 General
Construct fencing before any other work is performed on all parcels of land. This requirement may be waived where the Contractor has obtained a landowner written waiver. The waiver must state a completion date agreed to by the landowner and the Contractor for completing the fence work. Maintain all existing fence enclosures. Close Contractor fence openings using new permanent fence, or use temporary fence, cattle guards, or watchman where new permanent fence cannot be constructed the same day. Temporary fence may be used in place of new permanent fence if approved.
607.03.2 Fence Preparation
Fence preparation consists of removal of vegetative and ground surface obstacles prior to actual fence installation. For fence preparation, clear only those portions of brush, shrubs, and vegetation interfering with the fence installation. Cut off, trim, or mow interfering vegetation without exposing bare soil in, or adjacent to, stream banks, natural drainages, or wetlands. Dispose of the resulting debris, slash, branches, etc. in accordance with Subsection 201.03.5 . Avoid or minimize injury or damage to remaining vegetation. Do not grub, excavate, grade, or disturb the soil surface, unless in direct conflict with fence wire. Soil disturbance associated with fence preparation, both inside and outside the construction limits, may not be included in the SWPPP permit. If disturbance of soil is unavoidable, revise and update the SWPPP, and install appropriate erosion and sediment control features (i.e., BMPs) as required. Prior to fence installation, seed all exposed soil in accordance with the contract requirements. The seeding dates specified in the contract do not apply to this seeding. 607 – FENCES 2020 EDITION V5.1 607-2 Prior to commencing work that alters or disturbs the bed or banks of any stream or its tributaries, obtain authorization from FWP; commonly referred to as the SPA 124. Prior to conducting any work that results in the placement, or discharge of soils into waters of the United States, including wetlands, obtain a COE Section 404 authorization. Prior to conducting any work in State waters, including wetlands, that causes an increase in turbidity; obtain a 318 authorization from the DEQ. Use equipment that minimizes disturbance to soil and vegetation (i.e., low pressure rubber- tired equipment, wide tracked low-weight tractors, etc.) in fence preparation areas, for setting fence posts and installing fencing material. If it is necessary to operate equipment in wetlands, place and operate the equipment on mats, or utilize other measures as necessary to avoid or minimize soil and vegetation disturbance. When installing fence posts and fencing, utilize measures, including hand work, to avoid or minimize soil and vegetation disturbance in streams and natural drainages and on, or adjacent to, stream banks.
607.03.3 Constructing Chain Link Fence
Construct chain link fence as specified in the contract and in accordance with the following requirements:
A.Posts. Set posts vertically, spaced at maximum 10-foot (3 m) centers, measured parallel to the ground surface. Set posts for 5, 6 and 8-foot (1.5, 1.8 and 2.4 m) fence in concrete. Set end, corner, and pull posts for 3 and 4-foot (0.9 and 1.2 m) fence and line posts connected by bracing to end, corner, or pull posts in concrete. Drive or set in concrete, line posts on 3 and 4-foot (0.9 and 1.2 m) fence as specified. Use the footing dimensions and post embedment depths shown in the Detailed Drawings. Crown concrete footings to shed water. Do not damage posts while driving them. Backfill and compact the voids around posts. Set line posts placed in solid rock without soil overburden, at least 14 inches (355 mm) deep. When in solid rock, set end, corner, gate, and pull posts at least 20 inches (510 mm) deep. Excavate or drill holes to a minimum width or diameter 1-inch (25 mm) greater than the largest dimension of the post being set. Cut posts to the required length before installing. The Contractor may use an even post length set deeper into the solid rock at Contractor expense. For metal posts placed in bored rock holes or consolidated soils, set the post plumb and fill the holes with cement grout that meets the requirements of Subsection 713.04. Work the grout into the holes to eliminate voids. Concrete footings are not required where posts are set in bored holes. Place posts, set in solid rock covered by soil or loose rock, to the specified depths or to the minimum solid rock depths specified above, whichever is less. When solid rock is encountered before reaching the specified depth, construct concrete footings from the solid rock to the top of the ground on 5, 6 and 8-foot (1.5, 1.8, and 2.4 m) fence and on end, corner, and pull posts for 3 and 4-foot (0.9 and 1.2 m) fence. Grout around that part of the post that is in solid rock. Check that all posts are solid once they are driven, backfilled, or concrete is placed.
B.Top Cable or Rail. Furnish a ⅜-inch (10 mm) diameter galvanized steel cable for the top brace. Pass the top cable through the line post tops, providing a continuous brace from end-to-end of each fence section. 2020 EDITION V5.1 FENCES – 607 607-3 Use a top rail in place of the top cable when fences are used in low-speed residential applications. Join top rail sections using sleeve-type couplings. Fasten the top rails to the terminal posts using pressed steel fittings.
C.Fence Fabric. Place chain link fabric for 6 and 8-foot (1.8 and 2.4 m) fence on tangents, on the post face away from the highway. On 3, 4, and 5-foot (0.9, 1.2, and 1.5 m) fence, place the fabric as directed. On curves, place the fabric for all fence heights on the outside face of the posts on curves. Place the chain link fabric on a straight grade between posts, leveling high points on the ground. Obtain the Project Manager’s approval to fill in depressions along the fence line. Stretch taut and securely fasten the fabric to the posts. Stretching by motor vehicle is prohibited. Use stretcher bars and fabric bands spaced at 1-foot intervals (305 mm) to fasten to end, gate, corner, and pull posts. Cut the fabric and attach each span independently at all pull and corner posts. Fasten fabric to line posts at 14-inch (355 mm) intervals with tie wire, metal bands, or other approved fasteners. Fasten the top edge of the fabric to the top rail or cable with tie wires spaced at 18-inch (455 mm) intervals. Join rolls of wire fabric by weaving a single strand into the ends of the rolls forming a continuous mesh. When a winged cattle guard is located in a chain link fence, extend the wire fabric beyond the post supporting the wing and securely fasten it to the wing.
D.Tension Wire. Attach a tension wire to the bottom of the chain link fabric using ring fasteners at 24-inch (610 mm) maximum intervals and secure at the terminal posts or pull posts using brace bands.
E.Gates. Fasten chain link fabric to the gate frame end bars using stretcher bars and fabric bands, and to the top and bottom of gate frame bars using tie wires for the chain link fence, or by other approved standard methods. Clean welded connections on steel gate frames with burned spelter coating by wire brushing, to remove all traces of the welding flux and loose or cracked spelter. Paint the cleaned areas with two coats of zinc oxide-zinc dust paint mixed in a weight ratio of one part zinc oxide to four parts zinc dust. Provide the drop-bar locking device for double metal gates with a 12 x 15-inch square (305 x 380 mm) deep Class General concrete footing crowned at the top. Provide a minimum 6-inch (150 mm) hole in the footing to receive the locking bar.
F.Panels. Install panels as shown in the Detailed Drawings . Double panels at fence corners and angle points consist of one corner post, two line posts, two braces, two truss rods, two top rails, concrete, and other fixtures. Single panels at gates and fence ends consist of one gate or end post, one line post, one brace, one truss rod, one top rail, concrete, and associated fixtures.
607.03.4 Constructing Barbed and Woven Wire Fence
Construct barbed, smooth and woven wire fences meeting the contract requirements and the following:
A.Posts and Braces. Excavate post holes, footing excavations, and anchors as shown in the Detailed Drawings . Wood posts may be driven. Repair or replace all damaged posts at Contractor expense. 607 – FENCES 2020 EDITION V5.1 607-4 Treat cut or trimmed areas on posts and braces with 3 applications of Ammoniacal Copper Zinc Arsenate (ACZA) or copper naphthenate (CuN) solution containing a minimum of 2% copper metal in accordance with AWPA M4. Securely nail braces to terminal and brace posts. Metal posts not specified to be set in concrete may be driven. Place and grout metal posts placed in rock as specified. Furnish a watertight cap to fit and remain secure over the outside top of circular metal posts. Backfill and compact post hole material in 6-inch (150 mm) loose lifts. Dampen holes before placing concrete. Ensure the concrete has set before placing and stretching the fence wire or attaching gates to the posts and braces.
B.Placing Wire. After the posts, braces, and footings are set, place the woven wire and/or barbed wire, stretch it tightly, and fasten to the posts. Apply tension following the wire manufacturer’s recommendations with a mechanical or other approved wire stretcher. Do not use motor vehicles to stretch fence. Diagonally drive U-shaped staples across the wood grain so both points enter different grains. Where wire uplift occurs, drive staples with the points slightly upward. On level ground and over knolls, drive staples slightly downward. Staple the wire tightly at corner, end, and pull posts. The staples on line posts must allow wire movement without damaging the wire. Place deadmen as shown in the Detailed Drawings at grade depressions, alignment angles, and other places where stresses might pull posts from the ground or out of alignment. Install one metal line post in each 500-foot (150 m) wood post fence run and in smaller runs between gate post ends for lightening protection. Construct gates as shown in the Detailed Drawings and in accordance with Subsection 712.02.
C.Fence Panels. Install panels as shown in Detailed Drawings.
607.03.5 Temporary Fence
Erect temporary fence to keep livestock and traffic out of the work area. Temporary fence may remain in place only during the work or until the fence is directed to be removed. Use Type F3M as temporary fence for livestock enclosures. Construct all temporary fence from metal posts and materials in accordance with Section 712. Use the minimum number of braces, panels, deadmen, and other accessories for constructing temporary fence. Undamaged material used in the temporary fence that meets specifications may be used in the permanent fence. Material not used in permanent fencing remains the Contractor’s property. Remove temporary fence at Contractor expense.
607.03.6 Remove and Reset Fence
When removing and resetting a fence, furnish all required materials over and above the usable salvaged fence that are new materials in accordance with Section 712. Required new materials are listed in the contract. Use, to the extent practical, materials of the same type and quality as those of the old fence that meet of Section 712 requirements. Replace rotten, damaged, or broken posts and rusty, unusable wire with new material. Do not use any galvanized materials with abraded or broken coating. 2020 EDITION V5.1 FENCES – 607 607-5 Furnish all additional fence wire required for depressions. Carefully handle and stockpile, at designated locations, all removed fence determined to be salvageable.
607.04 Method of Measurement
607.04.1 New Fence
New fence is measured by the foot (m). The measurements are made on the fence line along the top wire or rail or along a line parallel thereto, from end post to end post including wing fences to structures. Gates, cattle guards, or other openings are measured separately. Double sections of fence erected across depressions are measured for payment. All other temporary closures are included in the measurement of temporary fence.
607.04.2 Remove and Reset Fence
Remove and reset fence is measured by the foot (m). Measurement of reset fence in place is made in accordance with Subsection 607.04.1 . New posts and wire required to reset the removed fence is measured as follows:
1.Wood and metal posts are measured by the unit.
2.Barbed wire is measured by the foot (m); and
3.Woven wire is measured by the foot (m). The post and wire quantity specified in the contract is an estimate only. The actual quantity required to complete the work will be paid for at the contract unit price. Panels required for remove and reset fence are not measured for payment.
607.04.3 Gates
Gates are measured by the foot (m) from center to center of adjacent fence posts.
607.04.4 Fence Panels
Single and double fence panels are measured by the unit. Where R/W monuments are set, the construction of the corner gap as shown in the Detailed Drawings is not measured for payment. Include the cost of this construction in the adjacent panel(s).
607.04.5 Deadman
Deadman are measured by the unit. Anchors are not measured for payment.
607.04.6 Dozer Operation
Dozer operation is measured by the hour in accordance with Subsection 210.04.1. When dozer operation is not a bid item, it is incidental to and included in other fencing items.
607.04.7 Remove Fence
A.Replaced with New Fence. When the removed fence is being replaced with new fence, the existing fence removal is not measured for payment.
B.Without New Fence. Remove fence is measured by the foot (m) in place before removal along the top wire, or on a line parallel thereto, exclusive of gates, cattle guards, and other openings.
C.Postholes. Backfill and compact the postholes left from post removal using clean material or crushed base. Do not cut off and leave existing posts in place.
607.04.8 Fence Preparation
Fence preparation is not measured for payment but is incidental to the fencing items. 607 – FENCES 2020 EDITION V5.1 607-6
607.04.9 Temporary Fence
Temporary fence is measured by the foot (m). The measurements are made on the fence line along the top wire or along a line parallel thereto, from end post to end post. Temporary braces, panels, gates and deadmen are not measured for payment. Temporary fence materials ordered by the Contractor but not used in the work will not be measured for payment. Temporary fence removal is not measured for payment.
607.05 Basis of Payment
Payment for the completed and accepted quantities is made under the following: Pay Item Pay Unit Deadman Each Dozer Operation Hour (see Subsection 210.05) Fence Panels Each Gates Foot (m) New Fence Foot (m) New Wood or Metal Posts Each Remove and Reset Fence Foot (m) Remove Fence Foot (m) Temporary Fence Foot (m) When the removed fence is being replaced with new fence, the cost of removing existing fence is included in the contract unit price per foot (m) of new fence. Fence preparation is not paid for but is included in the contract unit price of the fencing items.
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Source: Standard Specifications for Road and Bridge Construction, 2020 (v5.1) Edition. Pages 421–426 of 611. View official source ↗