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.
Medford: Green Line Extension Public Meeting December 14 posted on Dec 5
The Green Line Extension Project Interim Program Management Team will host a public meeting as follows: Wednesday, December 14, 6:30 to 8:30 PM, Medford City Hall, Council Chambers, 85 George P. Hassett Drive The purpose of the meeting will be to present a general update …Continue Reading Medford: Green Line Extension Public Meeting December 14
MBTA Future: Focus40 Seeks Your Ideas posted on Dec 2
The Focus40 Street Team has been out at stops and stations around the system, collecting your ideas for the MBTA’s future. The Street Team is made up of MassDOT staff, community members, and partner organizations. We have already engaged with over 1,000 MBTA customers and …Continue Reading MBTA Future: Focus40 Seeks Your Ideas
MassDOT, MAPFRE Insurance Encourage Motorists to Prepare for Winter Driving posted on Dec 1
MassDOT and MAPFRE Insurance offer helpful tips to ensure that your vehicle is geared up for wintry road conditions: Bring your vehicle in for an inspection. Winter can involve some of the harshest conditions for your vehicle to endure, so have your vehicle checked by …Continue Reading MassDOT, MAPFRE Insurance Encourage Motorists to Prepare for Winter Driving