Accelerated Bridge Program Massachusetts Department of transporatation

MBTA Red Line Weekend Diversions

The Red Line Weekend Diversions will continue in 2018 as follows:

  • May 12-13

Shuttle buses will replace Red Line trains between the Kendall/MIT and Park Street stations, with a stop at Charles/MGH, from start of service each Saturday to end of service each Sunday. These diversions will allow the contractor, White-Skanska-Consigli JV (WSC), to perform work on elements within the MBTA Right-of-Way including installation of power cables, lighting, fencing, and security equipment and welding rails.

The project includes replacing the MBTA Red Line tracks, and other work in close proximity to them. The work will take place on 25 weekends over the project duration, and requires replacing Red Line trains with buses. The majority of the 25 weekends have been completed, with a few remaining in 2018. During the MBTA weekend diversions, the Longfellow Bridge will be closed to all motor vehicle travel, except shuttle buses. The bus route will carry passengers between Kendall/MIT Station and Park Street Station, with a stop at Charles/MGH Station. All shuttle bus stops are accessible for people with disabilities. All other motor vehicles, including passenger vehicles, trucks, and all other buses, will need to use one of two detour routes to reach Boston.

Emergency response, bicycle, and pedestrian access will be maintained across the bridge during these weekend diversions. Bicyclists, both inbound and outbound, and pedestrians will share the upstream sidewalk.

The Cambridge-bound detour remains in place during diversion weekends. Details on the route can be found on the Traffic Information page.

To report issues or concerns or for questions related to construction, please use the dedicated project hotline, 617-519-9892, or the project email address,

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