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E. Pipe shall be installed in accordance with the manufacturer's recommendation. <br /> <br />1. Before being lowered into the trench, the pipes and accessories shall be <br />carefully examined and the interior of the pipes shall be thoroughly cleaned <br />of foreign matter and other approved methods. <br /> <br />2. At the close of each workday and during suspension of work, a suitable <br />stopper shall be placed in the end of the pipe last laid to prevent mud or <br />other foreign material from entering the pipe. <br /> <br />F. Lines shall be laid straight and depth of cover shall be maintained uniform with <br />respect to finish grade, whether grading is completed or proposed at time of <br />pipe installation. <br /> <br />1. Where a grade or slope is shown on the Drawings, use laser based <br />surveying instruments to maintain alignment and grade. <br /> <br />2. At least one elevation shot shall be taken on each length of pipe and <br />recorded. <br /> <br />3. No abrupt changes in direction or grade will be allowed. <br /> <br />G. Concrete thrust blocks shall be provided in addition to restrained joint piping <br />where indicated on the Drawings. <br /> <br />H. After pipe has been laid, inspected and found satisfactory, sufficient backfill <br />shall be placed along the pipe barrel to hold the pipe securely in place during <br />the conduction of the hydrostatic test. <br /> <br />1. No backfill shall be placed over the joints until the hydrostatic test is <br />satisfactorily completed, leaving the joints exposed to view for the detection <br />of visible leaks. <br /> <br />2. Upon satisfactory completion of the hydrostatic test, backfilling of the trench <br />shall be completed. <br /> <br />3.04 INSTALLATION OF DUCTILE IRON PIPE AND FITTINGS <br /> <br />A. Unless otherwise directed, ductile iron pipe shall be laid with the bell ends facing <br />upstream in the normal direction of flow and in the direction of laying. <br /> <br />1. For lines on an appreciable slope, the bells shall, at the discretion of the <br />ENGINEER, face upgrade. <br /> <br />B. Push-on, thrust restrained and mechanical joints in ductile cast iron pipe and <br />fittings shall be made in accordance with the manufacturer's standards except <br />as otherwise specified herein. <br /> <br />City of Sunny Isles Beach <br />NE 174th Street Roadway Improvements <br />15105 - 17 Pipes and Tubes <br />14-1758 / 09-19-2014 <br />