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City of Elk River Design Standards <br />Materials <br />Pipe and fittings for non-pressure gravity sewers and ser�rices shall conform to the requirements <br />of ASTM D 1784 and D 3034, or ASTM F 789 and D 3034, and have push-on joints with <br />elastometric gaskets, as follows: <br />A. SDR 35 for depths up to 18-ft. <br />B. SDR 26 for depths 18-ft to 30-ft. <br />C. Ductile Iron Pipe, as specified below, for depths greater than 30-ft. <br />2. Pipe and fittings for pressure forcemains shall conform to the requirements of ASTM D 1784 <br />and the following supplementary- provisions: <br />A. For pipes 12" in diameter and smaller, the pipe, fittings and accessories shall be <br />C900 and have a minimum dimension ratio (DR) of 18 corresponding to a worl�ing <br />pressure of 150 psi. For pipes 14" in diameter and larger, the pipe, fittings and <br />accessories shall be C905 and have a minimum dimension ratio (DR) of 25 <br />corresponding to a working pressure of 165 psi. <br />B. Joints shall be push-on n�pe with elastometric gaskets. <br />C. Forcemain pipe shall have location tracer wire placed with it. Location wire shall be 8- <br />gauge plastic jacket rype TW or THW. Splices shall be made using 3M cast kits and shall <br />not occur more frequently than one per 250 feet of pipe. <br />3. All ductile iron pipe shall conform to the requirements of AWWA C 151 (ANSI A21.51) and as <br />follows: <br />A. CL 52 for depths 30-ft to 60-ft. <br />B. CL 54 for depths greater than 60-ft. <br />4. For service pipe placed at a depth of 30 feet or greater, the pipe material shall match the mainline <br />pipe as called for in item B3 abo�re. Service pipe placed shallo�ver than 30 feet of depth shall be <br />SDR 26. <br />5. All manhole and catch basin adjustments shall be Cretex Pro-Ring or appro�red equal. Manhole <br />and catch basin adjustments shall consist of a variery of heights (thicknesses), diameters and <br />shapes all conforming to the following requirements: <br />A. Grade adjustments — The grade adjustments shall be manufactured from ARPRO <br />Expanded Polypropylene (EPP) black, 5000 series meeting ASTM D3575 and ASTM <br />D4819-13; B6D7G4L3M24S2T17W7. The grade adjustments shall be manufactured <br />using a high compression molding process to produce a finished density of 120 g/1 (7.5 <br />pc�. The grade adjustments shall meet or exceed the load rating requirements of <br />AASHTO M306, HS-20 and HS-25. <br />B. "Grade" adjustments may- contain either an upper and lower key-�vay (tongue and groove) <br />for vertical alignment and/or an adhesive trench on the underside with a flat top. <br />C. "Finish" or "Flat" adjustments may either have a key�way (groove) on the underside for <br />vertical alignment and/or an adhesi�re trench with a flat upper surface. These adjustments <br />shall be a�railable in heights (thicl�nesses) which will allow final adjustments of the frame <br />and cover or grate to within'/4" (one quarter inch) of the specified final elevation. <br />"Finish" adjustments may also have a ke�vay on the upper surface of the inner diameter <br />to facilitate installation of an "Angle" adjustment. <br />D. "Angle" adjustments may� either have an upper or lower key�vay (tongue and groove) for <br />vertical alignment and/or an adhesive trench on the underside. When required, the <br />"Angle" adjustments shall allow final adjustment of the frame and cover or grate to <br />within'/4" (one quarter inch) of the specified final elevation. <br />OO City of Elk River, Minnesota — All rights reserved 21 <br />