The project used accelerated bridge construction techniques to replace the structurally deficient bridge that carries Bay Street over the Mill River. MassDOT contractors cast prefabricated bridge units made of steel and concrete and erected them by crane in just half of one day. The bridge also uses secant piles- piles that join together making a structural wall.
The new, wider bridge is located just south of Lake Sabbatia, which could provide spawning and nursing habitat for a large population of Alewives, Blueback Herring and American Eels. The aged Morey’s dam, located almost underneath the bridge, did not allow fish passage. The project replaces the dam and the new dam includes an eel ramp and fish ladder.
MassDOT designed the bridge, dam, and fish ladder and eel ramp, seen at left, in partnership with the Department of Conservation and Recreation, Massachusetts Department of Environmental Protection, and Massachusetts Division of Marine Fisheries. MassDOT’s award-winning Design Manual requires context-sensitive design on all projects.
Brad Chase of Massachusetts Division of Marine Fisheries says the project “provided a unique opportunity to improve infrastructure and natural resources” and “a chance to create a large new fish population— we’re really excited.”
MassDOT District 5 staff, including Nick Adams, Eric Borman, Mike Deverix, Gary Dixon, and Mike Martin are making sure the project is built to specifications, on-time and on-budget.
Brad Chase and his colleagues at the Division of Marine Fisheries will monitor fish passage using one of the first video counting systems to be installed in Massachusetts. A population of alewives and blueback herring could return in as little as three years following removal of downstream dams.
The bridge is expected to reopen to traffic by the end of December.
Take the Clean Air Challenge! Join Us September 22-26 posted on Sep 18
Massachusetts travelers will improve air-quality by choosing more sustainable transportation options during the Massachusetts Clean Air Challenge (formerly Car-Free Week). This year, Massachusetts challenges you to explore your commuting options and Shift Your Mode from September 22nd-26th. By trying greener modes including carpooling, vanpooling, bicycling, …Continue Reading Take the Clean Air Challenge! Join Us September 22-26
MBTA Silver Line to Chelsea Approved posted on Sep 17
The MassDOT Board of Directors today approved a construction contract to extend the MBTA’s increasingly popular Silver Line from East Boston to Chelsea. A project funded entirely by Governor Deval Patrick’s 2013 Transportation Finance Plan, the Silver Line will be extended past the Seaport to …Continue Reading MBTA Silver Line to Chelsea Approved
2014 Moving Together Conference: Register Today! posted on Sep 17
MassDOT’s 2014 Moving Together Conference will bring together leaders working to advance healthy transportation. Are you part of the conversation that will determine the future of transportation in Massachusetts? Please join us and let your voice be heard. The conference is scheduled as follows: Thursday, …Continue Reading 2014 Moving Together Conference: Register Today!