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CITY OF SANTA ANA <br />SPECIFICATIONS <br />PROJECT NO.: XX-XXXX <br />PROJECT TITLE <br /> <br />180 <br />A. CASING <br />Submit manufacturer's mill specification sheet listing diameter, thickness, and class <br />of steel used in making the casing, and the mill certification for Engineer’s approval <br />prior to commencement of work. <br />The Contractor’s attention is called to the fact that the casing pipe must be installed <br />such that the carrier pipe grade line matches surrounding proposed water main. <br />Tolerances shall not exceed allowable deflections stipulated in manufacturer’s <br />specifications. <br />Casing pipe shall not be dropped in the trench. <br />Steel casing shall be ASTM A 283, Grade C, ASTM A 570 Grade 30, 33, and ASTM <br />A-36 unless noted otherwise and have a minimum yield strength of 35,000 psi. The <br />minimum size and thickness of casing pipe shall be per City of Santa Ana Standard <br />Plan No. 1429. Greater casing thickness and diameter may be used as convenient for <br />the method of work and loadings involved, as suitable for the site and as limited by <br />possible interferences, but at no additional cost to the City. The exterior of the pipe <br />shall be coated with coal tar epoxy or bituminous asphalt. Minimum wall thickness <br />shall be as shown on City of Santa Ana Standard Plan No. 1429. <br />Casing sections shall be joined by full circumference butt welding in the field. <br />Prepare ends of casings for welding by providing 1/4-inch X 45-degree chamfer on <br />outside edges. <br />B. CARRIER PIPE <br />The carrier pipe shall be PVC unless otherwise indicated on the plans. All pressure <br />carrier pipe shall have restrained joints inside the casing. <br />C. GROUT HOLES <br />Grout connection holes shall be provided to pressure grout around the periphery of <br />the casing per City of Santa Ana Standard Plan No. 1429 for all casings 24-inches in <br />diameter and larger. <br />D. WELDING OF CASING PIPE <br />Welding requirements shall be in accordance with ANSI/AWWA C206. Welding <br />procedures shall be required for longitudinal and girth or special welds for pipe <br />cylinders, casing joint welds, reinforcing plates, and grout coupling connections. <br />Welding shall be done by skilled welders, welding operators, and tackers who have <br />had adequate experience in the type of materials to be used. Welders shall be <br />qualified under the provisions of ANSI/AWS D1.1 by an independent local, approved <br />testing agency not more than 6 months prior to commencing work on the casing or <br />pipeline. Machines and electrodes similar to those used in the Work shall be used in <br />505 E Central Ave <br />#B11/6/2024