Commuters heading into Boston this weekend are being advised to take alternate routes due to the continuation of the Commonwealth Avenue Bridge construction project as well as other work being done on the MBTA.
According to MassDot, crews demolished all the existing steel girders on the eastbound side of the bridge by noon Saturday and are continuing to work on sections of the existing backwall. They are scheduled to start installing new steel girders on the final span on the eastbound side.
Crews are continuing to put in place precast concrete deck panels and build new rail infrastructure in the area where the MBTA Green Line travels over the bridge.
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Due to the work, the Massachusetts Turnpike has been reduced to one lane throughout the weekend.
Officials said this will be the most diversions in one weekend due to the bridge demolition and other infrastructure improvements on the MBTA.
Shuttle buses have replaced train service on the Worcester/Framingham Commuter Rail line through the weekend with normal service expected to resume on Monday.
Shuttle buses are also running on parts of the Orange Line and between Boston Landing and Reservoir Station on the Green Line.
"A great amount of planning and consideration has gone into this major construction project and we appreciate the cooperation of the public and their efforts to reroute or reduce their travel so that our work crews can conduct operations this summer in ways that minimize the overall impact on the local community," said Transportation Secretary and CEO Stephanie Pollack.
The entire project is expected to wrap up on August 14.