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C. Fittings shall be Hot Rolled Steel conforming to ASTM A-307 or ASTM A-245. 1. Fasteners shall conform to ASTM A-307. 2. Pieces shall be hot-dip galvanized after fabrication, unless otherwise noted on the Drawings. 3.14 SUPPORTS FOR PLASTIC PIPE A. Pipe supports that will be used with plastic pipe shall be provided with a bearing plate where the width of hanger is less one-half (1/2) of the supported pipe's diameter. 1. The bearing plate must provide bearing 180 degrees around and shall have a minimum laying length of one-half (1/2) the pipe diameter or three (3) inches minimum. 2. The bearing plates shall be rigid, corrosion resistant and not subject to long term plastic flow properties. 3. To assure one hundred (100) percent bearing, the pipe shall be seated on a filler material. 4. This material shall be compatible for use with the plastic pipe. 5. Clamps to be used with plastic pipe shall be fitted snug and shall not exert clamp pressure on the pipe. 3.15 THRUST RESTRAINT A. Pipe anchors shall be spaced to divide pipe into sections. 1. Anchors shall be located at valves, changes in direction of piping, and major branch connections. 2. Anchors shall be of a type recommended by the pipe manufacturer and reviewed by the ENGINEER. B. On piping, where sleeve type couplings and flanged adapters are located near fittings or valves, tie rods shall span across the coupling, as specified herein, to restrain movements of the pipe along its axial direction. 1. Such restraints can be deleted if both ends of the pipe are anchored in a concrete structure with no fitting or valve occurring within the span length, in the suction piping to a pump where the coupling is between the pump and valve, or when the water pressure measured at the crown of the pipe is less than five (5) feet. City of Sunny Isles Beach NE 174th Street Roadway Improvements 15105 - 27 Pipes and Tubes 14-1758 / 09-19-2014