80 FENCES 80-1 GENERAL 80-1.01 GENERAL Section 80-1 includes general specifications for constructing fences. 80-1.02 MATERIALS A temporary must comply with the Contract for a permanent fence of the same type except: 1. Used materials may be incorporated in the fence if the materials are good, sound, and suitable for the intended purpose 2. Materials may be commercial quality if the dimensions and of the materials are equal to or greater than the dimensions and sizes shown on the plans or specified in section 80 3. Posts must be either metal or wood 4. The Department does not require: 4.1. Galvanizing or painting of steel elements 4.2. Treating wood with a wood preservative 4.3. Concrete footings for metal posts For concrete for metal post and brace footings and for deadmen, use: 1. Commercial-quality aggregates and cementitious material 2. At least 470 pounds of cementitious material per cubic yard 80-1.03 CONSTRUCTION Remove earth, trees, brush, and other obstructions that interfere with fence construction. Connect new fences to existing fences. Measure post spacing parallel to the ground Place each post in a vertical position except where the Engineer orders you to set the post perpendicular to the ground surface. Place a corner post with a brace for each direction of strain at each junction with an existing fence. Fasten the wire in the new and existing fences to each post. If ordered at a structure, connect the new fence to the structure such that stock can pass freely through or under the structure; otherwise, install an end post and connect the fence to it. Crown each concrete footing to shed water. After constructing a fence, uniformly spread the surplus excavated material along the adjacent roadway where designated by the Engineer. 80-1.04 PAYMENT The payment quantity for fence is the length measured: 1. Parallel to the ground slope 2. Along the fence The payment quantity does not include the width of openings. 80-2 BARBED WIRE AND WIRE MESH FENCES 80-2.01 GENERAL 80-2.01A Summary Section 80-2 includes specifications for constructing barbed wire and wire mesh fences. 80-2.01B Definitions alignment angle: Change in a line where the angle of deflection is less than: 1. 5 degrees for a steel post barbed wire or wire mesh fence 2. 15 degrees for a wood post barbed wire or wire mesh fence
Chain link fabric for nonslatted fence must have the diamond count corresponding to the fabric height shown in the following table: Diamond Counts Fabric height (inches) 36 42 48 60 72 84 96 Diamond count 10-1/2 12-1/2 13-1/2 17-1/2 20-1/2 24-1/2 27-1/2 Chain link fabric for slatted fence must have 3-1/4-inch-vertical and 5-1/4-inch-horizontal mesh. Knuckle finish fabric on the top and bottom edges. 80-3.02D Tension Wires, Hog Rings, Turnbuckles, Truss Tighteners, Truss Rods, and Stretcher Bars and Bar Bands. Tension wire must be commercial-quality coil spring steel. Tie wires and hog rings must be at least 9-gauge steel. Post clips must be at least 6-gauge steel. Galvanize tension and tie wires, hog rings, and post clips under ASTM A116, coating Class 3. Turnbuckles and truss tighteners must be: 1. Commercial-quality steel, malleable iron, or wrought iron 2. Galvanized under section 75-1.02B 3. in tensile strength to the truss rod Truss tighteners must have a strap thickness of at least 1/4 inch. Each truss rod must be steel and have a diameter of at least 3/8 inch. Each stretcher bar must be at least 1/4 by 3/4 inch. Each stretcher bar band must be at 1/8 by 3/4 inch. 80-3.02E Slats Slats must be wood or plastic. Wood slats must be one of the following: 1. Clear redwood 2. Medium-weight wood produced from the species Shorea (Meranti) Each wood slat must have: 1. Thickness of at least 1/4 inch 2. Width about 2-5/8 inch 3. Length enough to fill the vertical openings of the fabric Each plastic slat must: 1. Be a high-density polyethylene with UV inhibitors 2. Have a flat tubular cross section with: 2.1. Wall thickness of about 0.03 inch 2.2. Depth of about 0.325 inch 2.3. Width of about 2.38 inches 2.4. Length equal to the fence height The plastic slat material must comply with the requirements shown in the following table: Plastic Slat Material Requirements