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Braintree-Weymouth Relief Facilities Project
Massachusetts Water Resources Authority

 

BRAINTREE-WEYMOUTH TUNNEL (at Nut Island): Piping installation, 2002

BRAINTREE-WEYMOUTH TUNNEL
(at Nut Island):
Piping installation, 2002

AERIAL OVERVIEW

Braintree Weymouth

PROJECT MAP

Braintree Weymouth Projet Map

PHOTOS

Tunnel Heading at Fore River Shipyard

Piping in the Tunnel at Nut Island

The Tunnel Boring Machine Arrives

Deep Rock Tunnel Access Shaft

The MWRA Braintree-Weymouth Relief Facilities Project has improved the Braintree-Weymouth System, MWRA’s network of sewer pump stations, interceptors and siphons that serves Braintree, Hingham, Holbrook, Randolph, Weymouth and parts of Quincy.

It has transformed the way that wastewater generated by these South Shore communities is conveyed to sewer treatment and processing facilities.

INCREASED SEWER CAPACITY

The project increased the Braintree-Weymouth System’s peak flow capacity by approximately 19 million gallons per day and streamlined the route that wastewater takes from South Shore communities to the Nut Island Headworks and the Deer Island Treatment Plant.

New Braintree-Weymouth System facilities significantly reduced the risk of sewage surcharges and backups, which can be associated with sewer facilities that can’t accommodate all of their flow due to the growth of communities, or the age or insufficient size of the sewers, or the entry of non-sewage flows into sewers.

SYSTEM WIDE IMPROVEMENTS

Since MWRA was established in 1985, it has been working to improve and maintain its regional sewer facilities – the pipes and pump stations that carry wastewater from communities to treatment and processing plants.

MWRA’s regional sewer improvement projects, including the Braintree-Weymouth Relief Facilities Project, enable the whole sewer system to work as effectively as possible.

ENVIRONMENTAL BENEFITS

The Braintree-Weymouth Relief Facilities Project protects Boston Harbor as well as the waters and land of the project’s host communities. Just as importantly, the new facilities benefits everyone who relies on the Braintree-Weymouth System for clean, safe, reliable sewer service.

For more, download: Project Fact Sheet (PDF)

CONTACT:

Leonard Cawley
Public Affairs
(617) 788-4687