620 Page 414620 RIGHT OF WAY FENCING
620.1DESCRIPTION
This work consists of furnishing and installing fence, brace panels and gates; salvaging of existing fence; installation of temporary fence; and incidental work.
620.2MATERIALS
Right-of-way fence materials will conform to Section 920, except materials for Type I and Type IA temporary fence may consist of any approved new or used fencing material.
620.3CONSTRUCTION REQUIREMENTS
A.Right-of-Way Fence : Wood posts may be either handset or power driven. If hand set, the posts will be placed in the centers of the post holes and the backfill will be thoroughly tamped around the posts. The post holes will be a minimum of 2 inches larger in diameter than the nominal diameter of the post. If posts are sharpened, the posts will be sharpened on the small end to a blunt point approximately 3/4 inch wide prior to treatment. The fencing will be fastened to the sides of the posts facing the private property adjacent to the highway right-of-way. Fence on curves will be fastened to the side of the post, which will allow the wire to be pulled tight against the post. Woven wire fence fabric will be placed by securing or fastening one end and applying sufficient tension to remove all slack before making permanent attachments elsewhere. The fabric will be stretched until the tension curves in the line wires are approximately one half their original depths, keeping stay wires vertical. The bottom of the woven wire fabric will be placed a normal distance of 2 inches above the ground line. Over irregular ground a minimum clearance of 1 inch and a maximum clearance of 6 inches will be permitted for a distance not to exceed 8 feet. The Contractor will remove debris and perform necessary excavation and backfilling prior to installing the fence. Woven and barbed wire will be cut and wrapped at each panel encountered. In two post and three post brace panels, each line wire will be wrapped once around the last post and twisted back on itself with a minimum of four twists. If a three post panel has any angle to it, each line wire will be wrapped once around the middle post and twisted back on itself. Barbed wire will be fastened to brace panels by wrapping it twice around the last post and twisting it back on itself. Woven wire fabric splices will be made by the “wrap” splice method consisting of placing the two end vertical stay wires next to each other and twisting all of the free line wires four times around the line wires beyond these vertical stays. Barbed wire splice will be made by interlocking three barbs and twisting the loose ends four times around the main strands 620 Page 415beyond these interlocked barbs. Splices securely made with commercial splicing devices, acceptable to the Engineer, may be used in lieu of the above splice methods. Diagonal brace wires will be fabricated with four strands of 9 gauge galvanized wire, one strand of which will completely encircle each post, be twisted back on itself and firmly stapled to the posts. The brace wires will be tightened by twisting until the entire assembly is rigid. Brace wires will be installed in accordance with the direction of pull, two being installed on a panel that will pull in both directions. Staples will be used to fasten woven wire and barbed wire to the wooden line posts. The top and bottom wires of the woven wire fabric will always be stapled to each post. The remaining line wires will be alternately stapled. Staples will be set diagonally and will be sloped downward on level ground and over knolls and upward in depressions. The staples will be driven only deep enough to hold the wire close to the posts. The staple will not cause a deformation of the surface of the wood or kink the wire. Wire ties or clips will be used to fasten woven wire and barbed wire to steel posts. The wire ties or clips will prevent the fence from slipping either up or down the post. When ordered by the Engineer, where stresses tending to pull the posts from the ground are created at grade depressions, the fencing will be snubbed or guyed at the critical points by means of double strands of 9 gauge diameter galvanized wire connected to each horizontal line of barbed wire and to the top and bottom horizontal lines of the woven wire fabric. The ends of the combined strands will be firmly attached to a deadman located at the point which will resist the pull of the wire fence. A deadman will weigh at least 100 pounds and will be buried with a ground cover of at least 2 feet. The deadman may be a single rock, a concrete block, or other object acceptable to the Engineer. B.Temporary Fence: Temporary fence will not be attached to right-of-way fence. Type 1 temporary fence will be constructed in a manner to ensure that livestock will be confined, but in no case will less than 3 wires be used or will the post spacing exceed 20 feet. Additional wires may be necessary due to weather conditions and type of livestock confined. Electric fence will not be used for temporary fence. Following completion of grading operations and construction of right- of-way fence, the Contractor will remove Type 1 temporary fence. Type 1 temporary fence will remain the property of the Contractor only if the Contractor removes the temporary fence under the bid item of remove fence. Type 1A temporary fence will meet all the requirements of Type 1 temporary fence. Type 1A temporary fence will remain in place and become the property of the landowner. Type 2 and Type 3 temporary fence will be constructed in accordance with Section 620.3 A. Type 2 and Type 3 temporary fence will remain in place and become the property of the landowner. Type 2 temporary fence will consist of 4 strands of barbed wire fastened to steel posts spaced 20 feet center to center. Type 3 temporary fence will consist of a 26 inch width of woven wire with 2 strands of barbed wire fastened to steel posts spaced 20 feet center to center. C.Salvaging or Removing Fence: When a bid item for salvaging fence is provided, the fence will be removed from the locations designated. Salvaged fence will be placed adjacent to the 620 Page 416right-of-way and will remain the property of the original owner. The wire will be carefully removed from the posts and placed in rolls of at least 300 feet in length. Care will be taken not to tangle the wire. Posts will be carefully pulled to minimize damage. Posts will be placed in neat piles. Gates will be carefully removed and stockpiled. When a bid item for remove fence is provided in the contract, fence removed will become the property of the Contractor. Since landowners are permitted to salvage and keep fence they remove, no guarantee can be made that all fence shown on the plans will require removal by the Contractor.
620.4METHOD OF MEASUREMENT
A.Right-of-Way Fence : Right-of-way fence will be measured by the linear foot parallel to the ground, including lengths of brace panels and wire gates. B.Brace Panels: Quantities of brace panels will be determined from count of each type.
C.Tubular-Frame Gates: Quantities of tubular frame gates will be determined from a count of each size. D.Temporary Fence: 1.Type 1: Type 1 temporary fence will be measured by the linear foot complete in place parallel to the ground, including any necessary brace panel and gate construction. 2.Type 1A: Type 1A temporary fence will be measured by the linear foot complete in place parallel to the ground, including any necessary brace panel and gate construction. 3.Type 2 and 3: Type 2 and 3 temporary fence will be measured as specified in Section 620.4 A. E.Salvaging Fence and Remove Fence: Salvaging fence and remove fence will be measured by the linear foot parallel to the ground, including brace panels and gates.
620.5BASIS OF PAYMENT
A.Right-of-Way Fence: Right-of-way fence will be paid for at the contract unit price per foot for the respective types and classes, inclusive of anchors. Payment will be full compensation for furnishing materials, labor, equipment, and incidentals except brace panels and tubular frame gates. Separate payment will not be made for clearing the fence line, disposal of debris, smoothing the irregularities of the ground, necessary excavation or backfill, or filling in holes from wood posts. Deadmen ordered by the Engineer described in Section 620.3 A will be paid for as extra work. B.Brace Panels: Brace panels will be paid for at the contract unit price per panel for the respective types. Payment will be full compensation for furnishing labor, materials, equipment, and incidentals required. C.Tubular Frame Gates: The tubular frame gates will be paid for at the contract unit price per gate for the respective size. Payment for this item will be full compensation for furnishing 620 Page 417labor, materials, equipment, and incidentals except brace panels required to install the tubular frame gate. D.Temporary Fence: 1.Type 1: Type 1 temporary fence will be paid for at the contract unit price per foot. Payment will be full compensation for furnishing materials, labor, equipment, and incidentals required to construct the fence. Separate payment will not be made for clearing the fence line, disposal of debris, smoothing the irregularities of the ground, excavation, or backfill. 2.Type 1A: Type 1A temporary fence will be paid for at the contract unit price per foot. Payment will be full compensation for furnishing materials, labor, equipment, and incidentals required to construct the fence. Separate payment will not be made for clearing the fence line, disposal of debris, smoothing the irregularities of the ground, excavation, or backfill. 3.Type 2 and 3: Type 2 and 3 temporary fence will be paid for at their respective contract unit prices per foot. Payment will be full compensation for material, labor, equipment, and incidentals except brace panels and tubular frame gates. Separate payment will not be made for clearing the fence line, disposal of debris, smoothing the irregularities of the ground, excavation, or backfill. E.Salvaging Fence: Salvaging fence will be paid for at the contract unit price per foot. Payment will be full compensation for labor, equipment, excavation, backfill, filling in holes from wood posts, and incidentals required. F.Remove Fence: Remove fence will be paid for at the contract unit price per foot. Payment will be full compensation for labor, equipment, excavation, backfill, filling in holes from wood posts, and incidentals required. G.Remove and Reset Fence: If the Contractor is required to remove and reset brace panels, temporary fence, or right-of-way fence as the result of changes ordered on construction, payment for the work involved in removing and resetting will be made at the contract unit price for the type of fence or panel involved. Separate payment will not be made under the items salvaging or remove fence. 621 Page 418621 CHAIN LINK FENCING
621.1DESCRIPTION
This work consists of furnishing and installing chain link wire mesh fence.
621.2MATERIALS
Chain link fence materials will conform to Section 930. Concrete will conform to Class M6, Section 462.
621.3CONSTRUCTION REQUIREMENTS
Posts will be set in concrete footings. To eliminate danger of frost heaving, the post concrete in the crown top will not be larger than the concrete in the lower portion of the footing. Posts will be spaced at not more than 10 foot intervals. In determining post spacing, measurements will be made parallel to the slope of the natural ground. Posts will be set vertically except at locations where the Engineer determines the posts should be placed perpendicular to the slope of the ground. Corner posts and adjacent brace panels will be constructed at angle points of 30 degrees or more in the fence alignment. Pull posts and adjacent panels will be constructed at sharp breaks in the vertical grades and at intervals of not more than 500 feet on straight runs of fence. The Contractor will remove all debris and perform necessary excavation and backfilling prior to installing the fence. Tension wires will be placed, stretched tight, and secured to all posts before fence fabric is placed. Sufficient tension will be applied to the tension wires to allow a maximum sag of 1/4 inch between posts after the fence fabric has been attached. Temporary bracing on posts will be provided to prevent undue stresses in the posts when tension is applied to one tension wire at a time. On curves the fence fabric will be placed so that tensioning the fabric will pull the fabric against the post. On tangent sections the Engineer will designate the side of the post to which the fence fabric will be attached. The bottom of the fabric will be placed 3 inches above the ground line. Over irregular ground, a minimum clearance of 1 inch and a maximum clearance of 6 inches will be permitted for a distance not to exceed 8 feet. The fence fabric will be cut and each span attached independently to all corner and pull posts. Rolls of wire fabric will be joined by weaving a single strand into each of the rolls to form a continuous mesh.
621.4METHOD OF MEASUREMENT
A.Chain Link Fence: Chain link fence will be measured by the foot parallel to the ground, inclusive of the end, corner, and pull post panels.