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MBTA: Green Line Extension

Cambridge/Somerville/ Medford, MA

Project Description:

The GLX project received FTA New Starts funds to extend the existing MBTA Green Line service to the communities of Cambridge, Somerville, and Medford. The project involves construction of 6 new stations, 4.3 miles of Light Rail and Commuter Rail Tracks, a vehicle maintenance and storage facility, reconstruction of bridges and viaducts, roadways, intersections, and community path. 


As part of the Program Management/Construction Management Team, our staff managed the following high-risk elements of the project.

Professional Services:

  • Program Management

  • Acquisition for over 200 properties

  • Eight (8) business relocations

  • Licenses

  • Third-Party negotiations and agreements

  • Transit Oriented Development /Public Private Partnerships

  • Environmental Compliance

  • Utility Coordination  

  • Engineering support

  • Budgets

  • Schedules

Construction Costs: $2.2 B

Date of Service: 2010 - Present

Completion Date: December 2022

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