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green-line-extensionThe MBTA’s Fiscal and Management Control Board (FMCB) today voted unanimously to award a contract to GLX Constructors for the design and construction for the Green Line Extension.

The FMCB accepted staff’s recommendation for a total contract price of $1,082,118,600, which includes the proposal price, all six additive options and MBTA contingency.  The additive options mean that, in addition to track infrastructure and seven station stops, construction will include platform canopies, additional elevators at select stations, public art, additional community connections to the community path, and an enhanced vehicle maintenance facility.

“Today, the Green Line Extension is back on track thanks to months of hard work and collaboration,” said MassDOT Secretary and CEO Stephanie Pollack.  “We have a redesigned project we can afford and the right team to get it built to that the many benefits of GLX can be delivered to residents and businesses of Cambridge, Somerville, and Medford.”

“With today’s action by the Board, we are truly on our way to making the Green Line Extension a reality for the people of Cambridge, Somerville, and Medford,” said MBTA General Manager Luis Manuel Ramírez.  “The selection process was extensive and thorough, and we are pleased that the outcome is that the cost is under our Affordability Limit.” The Affordability Limit set for the project, including contingency, is $1.319 billion.

In the approximately two years since the Green Line Extension Project was indefinitely paused due to cost overruns, the MBTA redesigned and restructured the delivery model for service to Cambridge, Somerville, and Medford in 2021. After seeking qualifications from interested firms, the final step in the extensive procurement process was today’s opening of the price proposals from the two remaining design-build teams, (a third team did not advance to the final stages of the procurement).

The MBTA utilized a “best value” evaluation model in determining the team to deliver the future Green Line rail service.  Doing so required utilization of a state-mandated formula where the price offered by a team is divided by the team’s “Quality Score,” an assignment of points based upon the team’s response to the Requests for Proposals.

In an effort to guard against similar cost overruns that challenged the GLX project in the past, the MBTA implemented measures to institute strict cost controls throughout the procurement.  By implementing an Affordability Limit (the maximum allowable price for a proposal) and incentives for the inclusion of additive scope options (while not exceeding the Affordability Limit), the MBTA was able to procure the maximum project benefits without jeopardizing the project’s budget.

The contract includes a base scope of work and “Additive Options” that were only to be included if they could be completed within both the project schedule and the Affordability Limit. The prioritized Additive Options to be included in the GLX Project are:

  1. Platform canopies.
  2. Additional elevators at select stations.
  3. Public art.
  4. Additional community connection to the community path located on Chester Street in Somerville.
  5. Extension of the community path between East Somerville and Lechmere Stations.
  6. Enhanced Vehicle Maintenance Facility in Somerville.

GLX Constructors is comprised of the following firms: Fluor Enterprises, Inc., The Middlesex Corp., Herzog Contracting Corp., and Balfour Beatty Infrastructure, Inc.

For more information on the Green Line Extension Project, please visit the Project’s webpage.

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