The opportunity

The Green Line Extension project is an initiative of the Massachusetts Department of Transportation (MassDOT) and the Massachusetts Bay Transportation Authority (MBTA).

This important project will extend existing MBTA Green Line service from a relocated Lechmere Station in East Cambridge to Union Square in Somerville and College Avenue in Medford. Click here for a map of the proposed project.

This project will greatly improve public transit service in some of the most densely-populated municipalities of the Commonwealth. 

The solution

The HDR/Gilbane Joint Venture is leading the preliminary engineering effort as part of a Program Management/Construction Management contract with the MBTA.the end of 2012, under the direction of MassDOT and the MBTA, Phase 1 of the Green Line Extension Project (GLX) is expected to move into construction, with the onset of two bridge reconstructions and one building demolition.

By the end of 2012, under the direction of MassDOT and the MBTA, Phase 1 of the Green Line Extension Project (GLX) is expected to move into construction, with the onset of two bridge reconstructions and one building demolition.

Using an existing right-of-way commuter corridor, subsequent construction phases will introduce seven new light rail stations that will provide opportunities for improved public transportation to one of the densest regions of the country.

Through updated infrastructure and innovative design, the high impact benefits of this project have the potential of changing thousands of lives on a daily basis while simultaneously preparing three local communities for the ways of the future.

 

Technical information

  • Architect: HDR
  • Estimated construction cost: $1.1 billion
  • Benefits include a projected reduction in regional daily Vehicle Miles Traveled by 25,728 miles, improving air quality and reducing automobile congestion.
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