The left lanes in both Eastbound and Westbound directions on I-90 from west of the Prudential tunnel to the Commonwealth Avenue Bridge are closed to traffic in order to create work zones for substructure rehabilitation work and to reconstruct the I-90 median. Closure of the right lanes in both directions to complete the substructure work for the Commonwealth Avenue Bridge project will follow the reopening of the left lanes. To ensure safe merging distance on I-90 Eastbound leading up to the lane closure, one lane of the on-ramp is closed from Interchange 20.
Three lanes of traffic will be maintained in each direction on I-90 Eastbound and Westbound during peak hours. Short-term nighttime and weekend closures of an additional lane on I-90 Eastbound and Westbound will take place nightly.
Work to be performed throughout this project will include rehabilitation of the east and west abutments, as well as major rehabilitation of the east and west piers and reconstruction of the I-90 median.
Work to date in August includes installation of temporary barrier and digging test pits associated with the construction of the new foundation for the Commonwealth Avenue bridge. Additional work includes removal of guardrail and median along with pavement saw-cutting adjacent to the temporary barrier, excavation of the existing asphalt down to the top of the footing of the existing piers as shown above, and preparation for installation of the temporary earth support needed for the shoring towers that will be used to support the bridge deck.
Work in the next few weeks will include installation of earth support on the eastbound side of I-90. The current work prepares the subsurface for the shoring towers and a jacking system to keep the bridge deck in place to allow foundation work to be done without affecting the street above. Expect to see the shoring and jacking system set up in the closed travel lane.
The project-required lane closures causing congestion in the I-90 Allston/Brighton tolls area and at the Interchange 20 on-ramp to I-90 eastbound are the result of traffic management plans that take into account area constraints with the physical, available right-of-way and close proximity to the commuter rail lines. The closures allow the project to be completed safely and on schedule. MassDOT will continue to monitor traffic impacts and make adjustments as necessary that continue to ensure safe travel in the work area.
The project will be ongoing throughout the next twelve months leading to the replacement of the Commonwealth Avenue Bridge deck over I-90 which is scheduled to begin in late 2015.
Secretary Pollack Welcomes July COMTO National Meeting to Boston posted on May 27
MassDOT Secretary & CEO Stephanie Pollack is pleased to welcome the Conference Of Minority Transportation Officials (COMTO) 44th National Meeting & Training Conference to Boston, July 11–14, 2015. Secretary Pollack joins Boston Mayor Martin J. Walsh as Honorary Chairs of the Conference. In addition to …Continue Reading Secretary Pollack Welcomes July COMTO National Meeting to Boston
Fall River Route 79 Project: Ramp Closures May 28 posted on May 26
MassDOT will close the on-ramps to I-195 east and westbound from Route 79/138 and Broadway northbound, and from Central Street at Durfee Street/Milliken Boulevard on Thursday, May 28. The closures are necessary to demolish and reconstruct the last two elevated bridges as part of the …Continue Reading Fall River Route 79 Project: Ramp Closures May 28
MassDOT, Mapfre Insurance Encourage Safe Summer Driving posted on May 24
In time for Memorial Day, the kick-off to the summer driving season, MassDOT Acting Highway Administrator Thomas Tinlin joined MAPFRE Insurance in reminding motorists to adhere to speed limits, obey traffic laws and avoid distracted driving when traveling during the summer months. According to data …Continue Reading MassDOT, Mapfre Insurance Encourage Safe Summer Driving