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.
Thanksgiving: Travel Safely! posted on Nov 24
MassDOT encourages Thanksgiving holiday travelers to check the latest winter weather forecast and plan ahead with the high volume of traffic on our highways and at Boston Logan International Airport expected this year. Highways are typically busiest on the Tuesday and Wednesday before and on …Continue Reading Thanksgiving: Travel Safely!
South Coast Rail: Bridge Replacements Move Forward posted on Nov 24
Governor Deval Patrick today joined Acting MassDOT Secretary and CEO Frank DePaola and local officials to announce a contract award for the replacement of four bridges in New Bedford and Fall River along the future South Coast Rail Line. The improvements will advance South Coast …Continue Reading South Coast Rail: Bridge Replacements Move Forward
I-495 Highway Safety Program Announced posted on Nov 20
MassDOT and the Massachusetts State Police announced the establishment of a new Highway Safety Corridor Program for I-495 through the towns of Chelmsford, Westford, Littleton, Boxborough, Bolton, and Berlin. The program posts public safety signs that read, “Highway Safety Corridor / Laws Strictly Enforced” at …Continue Reading I-495 Highway Safety Program Announced