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After more than 60 years of continuous service, the Hultman Aqueduct is finally receiving a well deserved overhaul.
From 1939 through 2003, millions of Metro Boston residents relied the Hultman Aqueduct to deliver almost all of its drinking water.
By the 1990s, the aging surface aqueduct was riddled with leaks -- it was losing about 400,000 gallons of water per day. Valves needed to be replaced and water pressure fluctuated. The Hultman was still operational, but without extensive repair, it was only a matter of time before a major breach occured.
If the aqueduct failed, virtually all water service to Boston would have been cut off, a potential disaster for the region's public health, safety and economy. Still, repairs could not be performed as long as the Hultman remained the only major water line for Boston.
New Water Tunnel Makes Hultman Rehabilitation Possible
The vicious cycle ended in 2003, when MWRA started up the MetroWest Water Supply Tunnel, a new water transmission line that mirrors the route of the Hultman Aqueduct.
The Hultman has been taken off-line and its rehabilitation is underway. When work is complete, the old aqueduct and the new tunnel can be used interchangeably. If one line needs repair, the other will be activated, with little or no interruption to service.
Construction and maintenance activities will take place in Southborough, Framingham, Wayland, Natick and Weston. Work to rehabilitate the 13.4-mile long, 12.5-foot diameter Hultman Aqueduct includes:
The project is expected to be complete in 2014.
MWRA Contract #6975 (Hultman Aqueduct Interconnections) was awarded to Barletta Heavy Division, Inc. in July, 2009 at a cost of $48 million. The project's Design Engineer is Jacobs Civil, Inc.
This project is part of MWRA's Integrated Water Improvement Program.
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Created October 2, 2009