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.
Employers Honored for Excellence in Commuter Options posted on Mar 26
The efforts of more than 170 Massachusetts businesses, colleges, and universities, who promote active, healthy, and sustainable commute options, were celebrated today for helping Massachusetts to reduce traffic congestion, to promote healthy lifestyles, and benefit the environment. The Massachusetts Excellence in Commuter Options (ECO) Awards …Continue Reading Employers Honored for Excellence in Commuter Options
Longfellow Bridge: “Salt and Pepper” Towers Work posted on Mar 26
MassDOT on Saturday, March 28 will begin preparing to dismantle the downstream “salt and pepper” towers as part of the Longfellow Bridge Restoration Project. MassDOT’s contractor, White-Skanska-Consigli JV (WSC), coordinated with the cities of Cambridge and Boston as well as the MBTA to begin dismantling …Continue Reading Longfellow Bridge: “Salt and Pepper” Towers Work
Work Zone Safety Awareness: “Expect the Unexpected” posted on Mar 25
MassDOT joins local, state and federal transportation officials in observing the 2015 National Work Zone Safety Awareness Week, Monday-Friday, March 23-27, and Massachusetts will be focusing on the month of April as Work Zone Safety Awareness Month. With the start of highway construction season, this …Continue Reading Work Zone Safety Awareness: “Expect the Unexpected”