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Event Details

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March 20, 2017
7:00 PM - 9:00 PM
Town Hall - Room 103
333 Washington Street
1st Floor

Brookline, MA 02445
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Allston i90 Interchange Improvement Project Update by MassDOT and Howard Stein Hudson sponsored by the Transportation Board, Brookline Town Hall, Room 103, 7PM

Monday, March 20, 2017

Allston i90 Interchange Improvement Project Update

by MassDOT and Howard Stein Hudson

hosted by

The Transportation Board

Room 103, Brookline Town Hall


Project Details:

The I-90 Allston Interchange Improvement Project is the result of the need to replace the structurally deficient, functionally obsolete Allston Viaduct and the opportunity to dramatically reduce the footprint of the existing Allston Interchange toll plaza made possible by the implementation, through a separate project, of All Electronic Tolling (AET). The southern limit of the project includes the CSX Beacon Park Rail Yard, just north of the Boston University Athletic Center. The northern limit of the work is in the vicinity of the I-90 Allston interchange ramps.

The project creates an opportunity to dramatically improve livability and connectivity for residents of the Allston neighborhood while preserving and enhancing regional mobility through improvements to I-90 and its abutting interchange and the creation of a new stop on the Worcester/Framingham Commuter Line to be known as West Station. During the spring, summer, and fall of 2014, MassDOT and its design team worked closely with a task force composed of local residents, advocates, representatives of local institutions and businesses, and officials both elected and appointed, in concert with the Allston community at-large to develop a concept for the replacement of the Allston Interchange which includes:

  • Complete streets improvements to Cambridge Street.
  • Enhanced bicycle and pedestrian connectivity among the different parts of Allston touched by the project area and the Charles River.
  • A significant transit enhancement in the form of West Station and Commuter Rail Layover which will provide access and operational improvements to the commuter rail and an intermodal focal point for local bus service.
  • A realigned I-90 mainline, straightened to take full advantage of the safety enhancements made possible by AET.
  • A replaced I-90 Allston Viaduct to ensure that this section of a critical regional highway can continue to safely and efficiently carry traffic to and from Boston.
  • Connecting roadways between Cambridge Street and I-90 built, to the fullest extent practical and safe, on complete streets principles to clearly signal to motorists leaving the highway that they are entering a community.

Taken together, these elements represent a package of improvements which seeks to make I-90 and its abutting connections a less intrusive neighbor to the Allston community while still doing its crucial work as an Interstate interchange.

More information available at the project website: