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AWWA ACE68984
- Water Main Replacement over Interstate Route 78 with Steel and DIP
- Conference Proceeding by American Water Works Association, 11/01/2008
- Publisher: AWWA
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This poster paper presents a water main replacement project that included the following: existing 16-Ø/12-Ø steel watermain attached to Springfield Avenue,Springfield, Union County, New Jersey;steel water main and pipesupports in need of replacement; New Jersey Department of Transportation(NJDOT) Interstate Route 78Local/Express to be partially closedin phases (opportunity to doreplacement work); maintaining water supply andschedule critical during work;investigated alternatives forwater main materials; and,construction in threephases. Project complication involved the following: leaking valve (Phase III test but not I/II);space for work (2 contractors);dissimilar metals (galvanic action)between jacket and pipe supports (jacketshould corrode first, easier to replace);regularly changing schedule (highwaycontractor has incentive to finish early);existing support rod Ø changed eachphase; and,pipe support spacing. Presentation summary includes the following: water main replaced on a changingschedule with ductile iron pipe andsteel pipe;victaulic © Style 31 and Depend-o-Lok Couplings, flanged joints atvalves and fittings; protected piping system; and,communication important.
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