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mass-ave-bridge-project-graphic-2018MassDOT reminds the public that due to scheduled work, the Longfellow Bridge over the Charles River and the Massachusetts Avenue Bridge over Commonwealth Avenue will be closed to all non-emergency vehicles on Saturday, May 12, and on Sunday, May 13. The MBTA Red Line will run bus shuttles to replace trains that cannot use the Longfellow Bridge. For the closure of the Massachusetts Avenue Bridge, travelers should know the bridge closes to all travelers beginning at 10 p.m., Thursday, May 10 and until 5 a.m., Tuesday, May 15.

longfellow-bridge-logo-2018“From May 10 in the evening and until May 15 in the morning, our crews will be fully replacing the deteriorated Massachusetts Avenue over Commonwealth Avenue Bridge,” said Highway Administrator Jonathan Gulliver. “Also, on May 12 and May 13, crews will be continuing with the Longfellow Bridge Project. So during this particular weekend, two major bridges will be closed to all non-emergency vehicles, and appropriate detour routes will be in place with signs directing drivers. We appreciate the patience of travelers as essential projects are underway and we encourage members of the public to learn about these upcoming impacts and the respective detour routes, plan ahead, and utilize the most appropriate route, time, and mode of travel in order to reach their destination in an efficient manner.”

The traffic impacts occurring during this time are as follows:

  • As part of the project to replace the City of Boston’s bridge that carries Massachusetts Avenue over Commonwealth Avenue, Massachusetts Avenue north and southbound will be closed in the vicinity of the bridge from 10:00 p.m., on Thursday, May 10, until 5:00 a.m., Tuesday, May 15. The Commonwealth Avenue bypass travel lanes under the bridge will also be closed to traffic. MassDOT is using accelerated construction techniques to fully replace the bridge during this time.
  • Local access will be maintained to businesses and residences on Commonwealth Avenue and Massachusetts Avenue. Parking will be maintained on Massachusetts Avenue. View the detours map and the No Parking Flyer for more details. Bicyclists and pedestrians will use the Charlesgate East and Hereford Street crossings. MBTA bus service for Routes 1 and CT1 will also be detoured and MBTA customers should plan to allow extra time to reach their destinations.  View the details about bus stop relocations.
  • Due to the Longfellow Bridge Rehabilitation Project, shuttle buses will replace Red Line trains in both directions between Park Street and Kendall/MIT Stations, with a stop at Charles/MGH Station, on Saturday, May 12, and Sunday, May 13.The bus route and stops are shown on this map.
  • The Longfellow Bridge will also be closed to all private and commercial vehicular traffic from 11:00 p.m., Friday, May 11, until 5:00 a.m., Monday, May 14.
  • Access will be maintained on the Longfellow Bridge the weekend of May 12 for bus shuttles, emergency vehicles, bicyclists, and pedestrians. Bicyclists, both inbound and outbound, and pedestrians will use the shared downstream sidewalk during the work. All other motor vehicles, including passenger vehicles and trucks, will need to use one of two Boston-bound detour routes to reach Charles River Dam Road (Monsignor O’Brien Highway/Route 28) and Leverett Circle.

 Signage and messaging will be in place to notify drivers of these detours. MassDOT encourages the public to be mindful of potential traffic impacts. Those traveling through the area should reduce speed and use caution. The schedule for this work is weather dependent and subject to change without notice.

For more information on traffic conditions travelers are encouraged to:

  • Dial 511 before heading out onto the roadways and select a route to hear real-time conditions.
  • Visit, a website which provides real-time traffic and incident advisory information, access to traffic cameras, and allows users to subscribe to text and email alerts for traffic conditions.
  • Follow MassDOT on Twitter @MassDOT to receive regular updates on road and traffic conditions.
  • Download MassDOT’s GoTime mobile app and view real-time traffic conditions before setting out on the road.

MassDOT appreciates the cooperation and patience of the traveling public as core infrastructure is maintained and rebuilt. Members of the public are encouraged to utilize the appropriate technology tools to plan trips, including, the MassDOT GoTime travel app, and other wayfinding resources to find the most appropriate route, mode, and timing of travel during construction operations.

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