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D. Flanged joints shall be made with bolts or stud bolts and nuts . <br /> Bolts, stud bolts, and nuts shall conform to American Standard <br /> heavy dimensions , semi-finished with square or hexagonal heads <br /> and cold punched hexagonal nuts, meeting the requirements of <br /> ASTM Designation A-307 . Bolt sizes shall be American Standard <br /> for the flanges specified , and bolts and nuts shall have good , true <br /> threads. .. <br /> E . Gaskets shall be in accordance with AWWA Standard C115 (ANSI <br /> A21 . 15-99 ), latest revision . <br /> 1 . 08 SUBMITTALS <br /> Before starting fabrication of the ductile iron pipe and fittings, the <br /> Contractor shall submit complete detailed working drawings for approval <br /> by the Engineer. Such drawings shall show the piping layouts and <br /> contain schedules of all pipe, fittings , valves , expansion joints, hangers <br /> and supports , and other appurtenances. Where special fittings are <br /> required , they shall be shown in large detail with all necessary <br /> dimensions . The drawings submitted shall show flanged jointed sections <br /> placed so as to be removable without disturbance to the main pipe <br /> sections . <br /> 1 .09 MARKING <br /> A. Number 10 stranded conductor copper trace wire shall be spiral <br /> wrapped or affixed to the top of the pipe. See trace wire detail M - <br /> 16 for specifications regarding installation . <br /> B. Trace wire is required over all pipes or as required by IRCDUS. <br /> C. Location tape is required over all pipes . Tape is to be installed 12" <br /> below proposed grade. <br /> 1 . 10 INSTALLATION <br /> A. Unless otherwise noted on the drawings or in other sections of this <br /> specification , the pipe shall be handled and installed in strict <br /> accordance with the manufacturer's instructions and with the <br /> applicable provisions of AWWA C600-99 , or latest revision . If a <br /> conflict exists between the manufacturer's instructions and the <br /> AWWA Standards , the manufacturer' s instructions shall govern . <br /> The Contractor shall use every precaution during construction to <br /> protect the pipe against the entry of non-potable water, dirt, wood , <br /> small animals, and any other foreign material that would hinder <br /> the operation of the pipeline. Where the groundwater elevation is <br /> above the bottom of the trench , the Contractor shall provide <br /> suitable dewatering equipment. All piping shall be placed in a dry <br /> trench , unless the IRCDUS 's Engineer approves wet trench <br /> installation . <br /> r <br /> 1 - 4 <br />