Specifications - City of Montpelier, Vermont

Title:Montpelier District HeatingCity of Montpelier, VT02700 – Sewerage and DrainageIssue Date:September 28, 2012Page #:7 of 10Interim, corrugated, polyethylene (PE) plastic pipe and fittings; corrugated, soiltightcouplings; and soiltight, coupled joints in sizes 12 and 15 inches (300 and 375 mm).D. Pipe Sizes 18 to 24 Inches (450 to 600 mm): AASHTO M 252 Interim, corrugated,polyethylene (PE) drainage tubing and fittings; corrugated, soiltight couplings.AASHTO M 294 Interim, corrugated, polyethylene (PE) plastic pipe and fittings;corrugated, soiltight couplings; and soiltight, coupled joints in sizes 18 to 24 Inches (450to 600 mm):E. Pipe Sizes 24 to 48 inches (600 to 1200 mm): Reinforced concrete pipe shall conform tothe requirements of AASHTO M 170M (AASHTO M 170) with the following notes orexceptions:1. The circumferential reinforcement in Table 3 of AASHTO M 170 M (AASHTOM 170) for 24 inch (600 mm), Class III, Wall B pipe shall be 210 mm 2 /m (0.1in 2 /ft) of pipe wall. Elliptical reinforcement shall not be used in circular pipes.2. All pipe 24 inches (600 mm) in diameter or smaller shall be of the bell andspigot type. Pipes larger than 24 inches (600 mm) in diameter may be either ofthe tongue and groove or bell and spigot type.3. In all sizes of bell and spigot pipe, and in tongue and groove pipe 30 inches (750mm) in diameter and larger, there shall be a line of circumferential reinforcementin the bell or groove, equal in area to that of a single line within the barrel of thepipe.F. Pipe Sizes 18 to 48 inches: The CSP shall meet the requirements of ASTM A760 exceptas follows on the joints. The material used in the fabrication of the CSP and steel sleevesshall conform to the applicable material requirements of ASTM A 929. The CSP and theBELL & SPIGOT joints shall be manufactured to show careful finished workmanship.There shall be no ragged shear edges. The metallic coating on the sleeve shall not bebruised, broken or otherwise damaged. If there is damage to the coating due to weldingof the lap or otherwise it shall be repaired in accordance with ASTM A 780.3.4 INSTALLATION, GENERALA. General Locations and Arrangements: Drawings (plans and details) indicate the generallocation and arrangement of underground sewerage and drainage systems piping.Location and arrangement of piping layout take into account many design considerations.Install piping as indicated, to extent practical.B. Install piping beginning at low point of systems, true to grades and alignment indicatedwith unbroken continuity of invert. Place bell ends of piping facing upstream. Installgaskets, seals, sleeves, and couplings according to manufacturer's recommendations foruse of lubricants, cements, and other installation requirements. Maintain swab or drag inline and pull past each joint as it is completed.C. Use manholes for changes in direction, except where fittings are indicated. Use fittingsfor branch connections, except where direct tap into existing sewer is indicated.SEWERAGE AND DRAINAGE 02700 7