Customer: Massachusetts Water Resources Authority
Products: VAG STS Butterfly Valves
General Background: From 1939 to 2003, millions of metro Boston residents relied on the Hultman Aqueduct to deliver almost all of its drinking water. By the 1990s, the aging structure suffered from numerous leaks, and was losing almost 400,000 gallons of water per day. The structure needed extensive repair, and if it failed, virtually all water service to the Boston area would be cut off.
In 2003, the completion of a The MetroWest Water Supply Tunnel, a new water transmission line that paralleled the route of the Hultman Aqueduct, made repairs to the aqueduct possible. When repairs are completed in 2014, 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.
The Hultman Aqueduct, which runs for approximately 17 miles from Marlborough to Weston, Massachusetts carries water from the Carroll Water Treatment Plant to the metro Boston area. It connects to regional distribution lines near Route 128 and the Charles River, and also to the City Tunnel that runs through Newton, Massachusetts.
The repair work has been centered in Southborough, Framingham, Wayland, Natick, and Weston, and has included:
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