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Manhattan


More than 6,000 feet of cast iron water main was recently rehabilitated along Madison Avenue using innovative trenchless technology.  The process involves pulling new high-density polyethylene lining through the existing pipes.  Since there is minimal trench excavation, inconvenience to the community, traffic congestion, pollution from trucking and waste material are substantially reduced.  Upon completion, the 10,000-foot-long water main will be the longest lining of a large diameter water main in the nation, if not the world.  This rehabilitation method is being considered for several other large diameter water main projects.


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