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comm-ave-bridge-july-12-2018The Commonwealth Avenue Bridge Replacement Project major work is beginning tomorrow, Thursday, July 26, at 7:00 PM and will continue through 5:00 AM on Saturday, August 11. Please note the construction-related impacts below:

For Pedestrians and Bicyclists:

Pedestrians and bicyclists will have full access across the Commonwealth Avenue Bridge on the eastbound side throughout construction. There will be additional Blue Bikes stations on Commonwealth Avenue during the shutdown (see below).

For Drivers:

Commonwealth Avenue Users:

  • Commonwealth Avenue (between Packard’s Corner and Kenmore Square) will be closed to vehicular through traffic (local access only) from 7:00 PM on July 26 to 5:00 AM on August 11Access will be maintained for businesses and abutting properties. 
  • See the “Commonwealth Avenue Closure Detour” on the Traffic Management page

Boston University (BU) Bridge Users:

  • The BU Bridge will be closed to vehicular and bus traffic from 7:00 PM on July 26 to 5:00 AM on August 11.
  • See the “Boston University (BU) Bridge Closure Detour” on the Traffic Management page.

I-90 (Mass Pike) Users:

  • Lane reductions on I-90 between the Allston Interchange and the Beacon Street Overpass in Boston from 9:00 PM on July 27 to 5:00 AM on August 6:
    • One eastbound and two westbound lanes open, or one westbound and two eastbound lanes open
    • One eastbound lane open and two westbound lanes open
    • One westbound lane open and two eastbound lanes open
    • Peak hours: reduced to two lanes in each direction
    • Off-peak hours and weekends:
    • Weekends of July 27-30 and August 3-6 (9:00 PM each Friday to 5:00 AM each Monday)
    • Weekdays, July 30-31 (during eastbound shift): 7:00 PM to 5:00 AM
    • Weekdays, August 2-3 (during westbound shift): 8:00 PM to 6:00 AM
  • Ramp closures on I-90 in Boston from 9:00 PM on July 27 to 5:00 AM on August 6:
    • The I-90 Eastbound on-ramp from Cambridge Street/Soldiers Field Road will be closed during this entire period.
    • The I-90 Westbound Exit 20 off-ramp to Brighton/Cambridge will be closed intermittently.
    • See the “I-90 (Mass Pike) Ramp Closures Detour” on the Traffic Management page.
  • I-90 will be fully restored to four lanes in each direction by 5:00 AM on August 6.

For MBTA Green B Line Users:
The Green B Line will be replaced with shuttle buses between Babcock Street and Blandford Street Stations from 5:00 AM on July 27 to 5:00 AM on August 11. See the MBTA project website for additional information.

During the Green Line bus diversions, the MBTA will also be continuing work to replace Green Line track throughout Commonwealth Avenue. These operations are not occurring on the bridge and will not impact logistics or the bridge replacement process. This track work has been closely coordinated with the Commonwealth Avenue Bridge Replacement Project and is occurring at this time in order to minimize overall impacts on customers.

For MBTA CT2 and 47 Bus Users:
MBTA Bus Routes CT2 and 47 will be detoured from the normal routes from 7:00 PM on July 26 to 5:00 AM on August 11. The Route 57 Bus will operate its normal route.

For MBTA Commuter Rail Framingham/Worcester Line Users:

Weekday Service (July 30 through August 10)

  • Worcester Line Train 552 that departs Worcester Station at 8 AM will stop at Framingham Station at 8:32 AM.
  • Worcester Line Train 551 that departs South Station at 7:35 PM will stop at Framingham Station at 8:08 PM.
  • Commuters are encouraged to utilize free parking at the Framingham State College parking lot.  The MetroWest Regional Transit Authority will provide free shuttle bus service to and from Framingham State College in advance of the morning Framingham stop at 8:32 AM, as well as all PM peak trains (beginning with the 3:30 PM train out of South Station, arriving in Framingham at 4:25 PM, through the 7:35 PM Worcester express train from South Station, arriving in Framingham at 8:08 PM).  

Weekend Service

During the weekends of July 28-29 and August 4-5, there will be no train service between Framingham and South Station.

    • Free bus shuttles will replace train service between Framingham and Wellesley Farms. After Wellesley Farms, the shuttle bus will then continue nonstop to Riverside, where riders can connect to the Green D Line.
    • In addition to the local shuttles, express shuttle service will be available between Framingham and Riverside.
    • See for more information and view a detailed shuttle schedule.

For Amtrak Lakeshore Limited Line Users: Amtrak’s Lakeshore Limited Line/Chicago will be replaced by shuttle buses between South Station and Albany, NY with stops in Springfield and Worcester for the weekends of July 28-29 and August 4-5.

MassDOT Encourages Active Transportation

There will be pedestrian and bicycle wayfinding signage at all Green Line shuttle bus stops on Commonwealth Avenue to encourage active transportation, especially for short trips. This will help optimize shuttle bus operations by shortening bus wait times and headways. 

Additional Blue Bikes Service

MassDOT is partnering with the City of Boston to provide an additional temporary Blue Bikes station at Silber Way on Commonwealth Ave during the construction period.

Other nearby stations include:

  • Kenmore Square
  • BU Central – 725 Commonwealth Ave
  • Commonwealth Ave at Amory St
  • Commonwealth Ave at Babcock Street
  • Packard’s Corner – Commonwealth Ave at Brighton Ave
  • Lower Cambridgeport at Magazine St
  • Longwood and Binney

Valet service will be provided as follows:

  • Commonwealth Ave at Babcock St – 7:30 AM to 10:30 AM
  • Longwood and Binney – 8:30 AM to 10:30 AM
  • Silber Way – 3:30 PM to 6:30 PM 

Get Ready to Ride

Download the Blue Bikes app on the App Store or Google Play to find a station near you. For a limited time, Blue Bikes is dropping their Single Trip Pass to $1 from July 26 – August 11, available in the Blue Bikes app. For more information, visit

Please see the project website,, for more information.

Please share this advisory with anyone you think may be interested in the project, and encourage them to sign up for email alerts for traffic updates and meeting announcements.

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