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Kvaerner Metals Project No. 306900 <br />General Specification No. GC-01 <br />I Site Work <br />When completed, the tops of manholes, field inlets, and other structures shall be <br />accurately brought to the elevations called for on the drawings; or, if no elevation is <br />indicated, they shall be brought flush with the surface of the surrounding ground or <br />' pavement. <br />~' <br />Riprap shall consist of hard, dense, durable stone, angular in shape and resistant to <br />weathering. Rounded stone or boulders will not be accepted as riprap material. The <br />stone shall have a specific gravity of at least 2.5. Each piece shall have its greatest <br />dimension not greater than three times its least dimension. Nominal stone size shall be 6 <br />inches. <br />' 9.0 FENCING <br />Chain link fence and gates shall be of galvanized No. 9 gage wire, woven in 2 in. <br />' diamond mesh in accordance with ASTM A 392. The fence fabric shall be stretched and <br />securely fastened to the posts, top bar and the bottom tension wire. The top bar shall be <br />1-1/2 inch diameter schedule 40 pipe and the bottom wire shall be one strand of 9 gage <br />wire to prevent easy lifting. The weight of the zinc coating on the diamond mesh shall be <br />not less than 1.2 ounces per square foot of actual surface covered when tested in <br />accordance with ASTM A 90. <br />At Upper site, all chain link fences and at Lower site, chain link fence around the <br />evaporation pond shall be 8 ft high with extension arm carrying 3 barbed wires extending <br />' 12 in. above the fence at a 45 degree angle leaning outward. Elsewhere at Lower site, <br />chain link fence shall match the existing. <br />Fence posts shall be spaced ten feet on centers and shall be set a minimum of three feet <br />into concrete footings. Top of footings shall be crowned to shed water. All pipe posts <br />shall conform to ASTM A 53, and shall be galvanized in accordance with ASTM A 123 <br />with a minimum of 2 ounces per square foot of surface area. <br />Line fence posts shall be 2-1/2 in. diameter, Schedule 40 Pipe. Comer, end and pull <br />posts shall be a minimum of 3 in. diameter, Schedule 40 Pipe. End, comer, gate and <br />latch posts shall be braced to the nearest line (pull) post with a 3/8 inch diagonal tension <br />rod, from top of the pull post to the bottom of such posts. Each rod shall be equipped <br />with a turnbuckle or truss tightener with tensile strength equal to that of the rod. Line <br />posts shall be braced with two 318 inch diagonal tension rods; crossed, at intervals not to <br />exceed 1000 feet. <br />' Where required, gates of similar construction shall be provided, including latch device <br />suitable for locking gates with padlock. <br />9.1 Remote Operation of Main Gates <br />At the Upper and Lower site, a motorized main gate shall be provided with the <br />following controls: <br />' J:VOfi91WPl5PEC457RUC11GCO19PC.DOG,Ra'. 111 11 Pm1sE JWy 37, 1999 <br />