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m 0 t b. Joints: Rubber and steel joint for prestressed pipe in accordance with current Lock Joint Pipe Company Specification on SPS, or equivalent. Joints for bell and spigot and tongue and groove pipe to be in accordance with current standard practice. Joints may be made using confined continuous rubber gasket. 2. Cast Iron Pipe a. Materials: Pipe must conform to current ASTM specification A142 for "Standard Pipe." b. Joints: Bell and spigot, caulked with lead and oakum, or and approved mechanical type. 3. Polyethylene Pipe a. Materials: Pipe must conform to current ASTM Specifications 02104, Schedule 40, for standard pipe. 4. Steel Pipe a. Materials: Pipe must conform to current ASTM Specification A120, Schedule 40. 'b. Joints: All joints must be welded or of an approved mechanical type. F. Carrier pipe with and internal pressure less that 30 psi shall have the ends of the casing pipe sealed after installation. G. Carrier pipe with and internal pressure of 30 psi and over shall have the casing pipe open at the ends if local conditions permit water from leaks to discharge into drainage ditch of manhole. If this is not practicable, the casing pipe shall be sealed at both ends and 4 inch relief vent provided at either and off the Railway's right of way, which shall -discharge into drainage ditch or sewer. H. Uncased high pressure gas pipe line crossings will be permitted provided they comply with the requirements of Chapter one, part 5.2, specifications for Uncased Gas Pipe Line within the Railway Right of Way (1993), as is contained in the "Manual for Railway Engineers", issued by the American Railway Engineers Association". In the event of conflict the provisions of the "General Specifications for Subgrade and Above Grade Crossings of Railway's Right of Way" shall supersede. ME