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.
Plan Ahead for July 4 Travel posted on Jun 29
MassDOT encourages the public to travel safely on the 4th of July holiday weekend, drive during lower volume times on major roadways, and use public transportation where possible. MassDOT suspends all construction work on major arterial roadways from 12 p.m., Friday, July 1, through the …Continue Reading Plan Ahead for July 4 Travel
Safe Routes to Schools: Baker-Polito Administration Honors 13 posted on Jun 29
Lt. Governor Karyn Polito today joined MassDOT in honoring 13 schools and individuals for their work to promote and train students to bicycle and walk to school in a safe manner as part of the Safe Routes to School Program. “I am thrilled to see …Continue Reading Safe Routes to Schools: Baker-Polito Administration Honors 13
Longfellow Bridge Closure, MBTA Red Line Diversion July 8-11 posted on Jun 28
MassDOT’s contractor will close the Longfellow Bridge and implement an MBTA Red Line diversion during the weekend of July 8 through July 10. The Longfellow Bridge will be closed to all vehicular traffic, except MBTA buses, from 11:00 PM on Friday, July 8, to 5:00 …Continue Reading Longfellow Bridge Closure, MBTA Red Line Diversion July 8-11