The extension of the MBTA’s Green Line through Somerville and Medford will move forward, pending a federal review, after a vote of approval from top transit officials on Monday.
Members of the boards who oversee the MBTA and MassDOT on Monday voted unanimously to submit its new stripped-down plans for the project to the Federal Transit Administration. At the same time, the T will begin drafting a plan to staff the project and finance it.
The joint meeting — packed with a standing room-only crowd — came after the project was upended by news last year that the 4.5-mile-long project would cost about $1 billion more than the $2 billion officials had budgeted for it.
Since then, the T has been working on simplifying the plans. Now, $622 million has been cut from the price tag, which puts the new cost at about $2.28 billion, according to the State House News Service.