Accelerated Bridge Program Massachusetts Department of transporatation

About This Project

The Boston University Bridge, carries Route 2 over the Charles River between Boston and Cambridge. Built in 1928, the bridge was originally named the Cottage Farm Bridge. As part of the Patrick-Murray, $3 billion Accelerated Bridge Program, a construction contract was awarded to Pihl Inc. of Canton for the full rehabilitation of the BU Bridge in June of 2009.

This project is substantially complete. Additional punch list item work is anticipated to be completed by the end of 2011 and tree plantings will be completed in the spring of 2012.

Purpose and Goals

The goals of the Boston University Bridge Rehabilitation Project are to restore the bridge’s structural integrity and enhance accessibility. This project includes a full deck replacement and the rehabilitation of the downstream sidewalk.  Additional superstructure repair work and a new environmentally friendly drainage system will also be installed.  The bridge rehabilitation will preserve as many of the original historic elements as possible.

Sequence of Work

Construction work was broken into 3 phases, maintaining two directions of traffic at all peak times.

Effective Wednesday, December 21, 2011 the BU Bridge was reopened to one lane onto the bridge transitioning into two lanes exiting the bridge at both the Boston and Cambridge approaches. Two dedicated 5-foot bike lanes run adjacent to the sidewalks.

 For current traffic advisories for this project, please see Traffic Information.

Project Updates

MassDOT is committed to public outreach throughout the duration of construction. An issues tracking system will be employed during construction to ensure that problems and concerns are addressed in a timely manner.  For more information, please use the project feedback e-mail at: or see Contact Us.

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