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<br />G. FINE MATERIALS <br /> <br />1. Shall be carefully placed and tamped around the lower half of the utility; <br />backfilling shall be carefully continued in layers not exceeding 6-inches <br />above the top of the utility, using the best available material from the <br />excavation, if approved, and excluding stones or rock fragments larger than: <br /> <br />1) 3 inches On concrete, cast-iron or steel pipe <br /> <br />2) 1 1/2 inches On clay pipe <br /> <br />3) 1 inch On plastic pipe <br /> <br />4) 1/2 inch On fiber and asbestos cement pipe <br /> <br />G. BORROW MATERIALS <br /> <br />1. Shall be used if suitable material from the excavation is not available. <br /> <br />2.02 PLASTIC WARNING TAPE: <br /> <br />A. Plastic marking tape shall be acid and alkali resistant polyethylene film, 6 inches <br />wide with minimum thickness of 0.004 inch. <br /> <br />B. Tape shall have a minimum strength of 1750 psi lengthwise and 1500 psi <br />crosswise. <br /> <br />C. The tape shall be manufactured with integral wires, foil backing, or other means <br />to enable detection by a metal detector when the tape is buried up to 3 feet <br />deep. <br /> <br />D. The tape shall be of a type specifically manufactured for marking and locating <br />underground utilities. <br /> <br />E. The metallic core of the tape shall be encased in a protective jacket or provided <br />with other means to protect it from corrosion. <br /> <br />F. Tape color shall be as specified in Table 1 and shall bear a continuous printed <br />inscription describing the specific utility. <br /> <br /> <br /> <br />City of Sunny Isles Beach <br />NE 174th Street Roadway Improvements <br />02300 - 4 Earthwork <br />14-1758 / 09-19-2014 <br />