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Detroit Jam and Reservoir Minto Fish Collection Facility Rebuild with wood blocks or bulkheads. Provide batterboards not more than 25 feet apart in trenches for checking and ensuring that pipe invert elevations are as indicated. Laser beam method may be used in lieu of batterboards for the same purpose. Branch connections shall be made by use of regular fittin.s or -olvent ceme. -d - ••1- - -- - _ -• • shall conform to Table 4 of ASTM D 3034. 3.1.1.3 Connections to Existing Lines Obtain approval from the Contracting Officer before making connection to existing line. Conduct work so that there is minimum interruption of service on existing line. 3.1.2 Special Requirements 3.1.2.1 Installation of PVC Plastic Piping Install pipe and fittings in accordance with paragraph entitled General Requirements for Installation of Pipelines of this section and with the requirements of ASTM D 2321 for laying and joining pipe and fittings. Make joints with the gaskets specified for joints with this piping and assemble in accordance with the requirements of ASTM D 2321 for assembly of joints. Make joints to other pipe materials in accordance with the recommendations of the plastic pipe manufacturer. 3 .1.2.2 Installation of PVC Plastic Pressure Pipe and Fittings Unless otherwise specified, install pipe and fittings in accordance with paragraph entitled General Requirements for Installation of Pipelines of this section; with the requirements of AWWA C605 for laying of pipe, joining PVC pipe to fittings and accessories, and setting of hydrants, valves, and fittings; and with the recommendations for pipe joint assembly and appurtenance installation in AWWA M23, Chapter 7, "Installation." a. Pipe Less Than 4-Inch Diameter: (1) Threaded joints shall be made by wrapping the male threads with joint tape or by applying an approved thread lubricant, then threading the joining members together. The joints shall be tightened with strap wrenches which will not damage the pipe and fittings. The joint shall be tightened no more than 2 threads past hand-tight. (2) Push-On Joints: The ends of pipe for push-on joints shall be beveled to facilitate assembly. Pipe shall be marked to indicate when the pipe is fully seated. The gasket shall be lubricated to prevent displacement. Care shall be exercised to ensure that the gasket remains in proper position in the bell or coupling while making the joint. (3) Solvent-weld joints shall comply with the manufacturer's instructions. b. Pipe 4-Inch Diameter Joints: Make push-on joints with the elastomeric gaskets specified for this type joint, using either elastomeric-gasket bell-end pipe or elastomeric-gasket couplings. For pipe-to-pipe push-on joint connections, use only pipe with push-on joint ends having factory-made bevel; for push-on joint connections to fittings, cut spigot end of pipe off square and re-bevel pipe end to a 33 30 00. 00 25-10