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.
Longfellow Bridge: Next Stage of Construction to Begin in August posted on Jul 22
MassDOT’s contractor is scheduled to begin the next stage of construction on the Longfellow Bridge in August 2016 now that the MBTA Red Line trains have been moved to their new locations. In this stage, bridge rehabilitation work will occur under the MBTA outbound track. …Continue Reading Longfellow Bridge: Next Stage of Construction to Begin in August
Maynard: Assabet River Rail Trail to Connect with MBTA Station posted on Jul 21
MassDOT Highway Administrator Tom Tinlin today joined local legislators to break ground on the Assabet River Rail Trail construction project in Maynard. The $6.7 million project links the Assabet River National Wildlife Refuge with the downtown Maynard business district as well as the MBTA South …Continue Reading Maynard: Assabet River Rail Trail to Connect with MBTA Station
Coming Soon: Electric Vehicle Fast Charging Stations posted on Jul 20
MassDOT has announced that “Fast Charging” Stations for Electric Vehicles will be available at I-90 Service Plazas beginning later this year. Depending upon the electric vehicle and the state of its current charge, the stations will charge an electric vehicle to at least 80% power …Continue Reading Coming Soon: Electric Vehicle Fast Charging Stations