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Green Line shutdown between Lechmere and Union Square starts today

A train pulls into the new Union Square MBTA station on August 6, 2022. A 25-day partial closure of the Green Line between Lechmere and Union Square began Monday, Sept. 18, 2023.Carlin Stiehl for The Boston Globe

A 25-day partial closure of the Green Line between Cambridge and Somerville began Monday so workers can make bridge repairs, officials said.

Servce is suspended between Lechmere station in Cambridge and Union Square station in Somerville through October 12 “due to MassDOT work on Squires Bridge” on McGrath Highway, the MBTA said Monday morning.

“Use local bus routes for service to the Green Line E Branch or Orange Line,” the agency said.

The MBTA announced the closure last month.

The closure is shorter than originally planned. In June, the MBTA announced the Union Square branch would be closed for 42 days, from July 18 to Aug. 28, for the repairs. After an outcry from local officials, the Healey administration reversed course less than a week later, postponing the work until September.


The project coincides with the suspension of Green Line service between North Station and Government Center due to the ongoing demolition of the Government Center Garage, the MBTA said.

Material from prior Globe stories was used in this report.

Travis Andersen can be reached at