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.
EZPass: New Service to Reload Transponders, Pay by Plate posted on Oct 17
MassDOT is supplementing All-Electronic Tolling at the Tobin Bridge with a new retail Cash Payment Network system. This program, which is now officially live, will allow cash preferred customers to pay their PAY BY PLATE MA invoices and replenish their MassDOT E-ZPass accounts at over …Continue Reading EZPass: New Service to Reload Transponders, Pay by Plate
Governor Patrick Announces Fairmount Line Service Upgrades posted on Oct 16
Governor Deval Patrick today joined MassDOT Secretary & CEO Richard A. Davey, MBTA General Manager Dr. Beverly Scott and state and local officials to announce a package of service upgrades to the MBTA‘s Fairmount Commuter Rail Line to improve the Line’s reliability, frequency and to …Continue Reading Governor Patrick Announces Fairmount Line Service Upgrades
Lowell: Thorndike Street Corridor, Lord Overpass Reconstruction Announced posted on Oct 14
Governor Deval Patrick today joined MassDOT Secretary Richard Davey and local officials to announce the reconstruction of the Thorndike Street corridor in Lowell, including the Lord Overpass. The Governor also announced that the project’s design would be advanced through an expedited process that will result …Continue Reading Lowell: Thorndike Street Corridor, Lord Overpass Reconstruction Announced