GLX fixes could occur during overnight shutdowns, MBTA says

SOMERVILLE, Mass. — MBTA officials are considering a plan that would close the Green Line Extension earlier than normal each night for up to two weeks this fall to repair large stretches of rails that are too narrow.

Days after MBTA General Manager Phil Eng revealed that most of the nearly brand-new tracks on the extension need to be widened, he told agency overseers the contractors responsible for the project have proposed tackling the problems in 10 to 14 nights of work starting around Nov. 1.

Green Line Extension Constructors, the joint venture that built the 4.4-mile expansion, suggested shutting down service on the rails from 9 p.m. each night until 6 a.m. the following morning during that span, Eng said. Regular service would resume each day following the overnight work.

“They would address and regauge all of the track that needs to be done along both branches,” Eng said.

Eng said his team is still reviewing the proposal and has not yet committed to it, emphasizing that “it’s not months, it’s not years to address this.”

He did not disclose the anticipated costs of the repair project. Both Eng and Gov. Maura Healey signaled last week they want the contractors to cover the costs, not the T itself.

This is a developing story. Check back for updates as more information becomes available.

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