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Reynolds Channel pipeline completed

Long Island American Water pipes in Lynbrook, where

Long Island American Water pipes in Lynbrook, where there was a brown-water incident in 2010. The company flushed the pipes, and use restrictions were lifted. Credit: Danielle Finkelstein, 2010

Long Island American Water has completed a $1.5 million pipeline replacement project under Reynolds Channel to help improve water service reliability for customers in the villages of Atlantic Beach, Lawrence and Cedarhurst and the hamlet of Inwood, water company officials said.

The replacement of the water main that crosses under the channel is part of the water company’s $14.2 million budget to ensure reliability for residential water demand and fire protection, president William Varley said in his announcement Tuesday. American Water is the largest water supplier in Nassau County, providing water services to about 220,000 people.

“Underwater crossings are technically and logistically challenging projects,” said American Water’s engineering manager Ben Claase. “This was the largest directional drill project conducted in Nassau County and one of the largest for Long Island.”

The project took nearly a year to finish and involved installing a new 1,400-foot, 20-inch diameter, high-density polyethylene pipe 25 feet below the channel’s bottom as required by the state Department of Environmental Conservation and U.S. Army Corps of Engineers.

The company used horizontal directional drilling technology between Acapulco Street in Atlantic Beach, and  Beach 2nd Street in Lawrence, adjacent to the Atlantic Beach Bridge crossing, officials said.

Bancker Construction Corp.  and Environmental Crossings Inc. drilled and installed the new main, which was then pressure-tested, disinfected and connected with the existing distribution system on both shores, officials said.

Photo: Long Island American Water pipes in Lynbrook

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