As work continues at the Medford Street Rail Bridge for the Green Line Extension project (GLX), Phase 1 work will require the complete closure of Medford Street, between South Street and Somerville Avenue, on Saturday, September 13, and Sunday, September 14. Vehicle detours are as follows:

• Northbound traffic will be detoured left onto South Street, to Windsor Place, right onto Webster Avenue, right onto Prospect Avenue, and right onto Somerville Avenue.
• Southbound traffic will be detoured left onto McGrath Highway, right onto Cambridge Street (at the intersection at Lechmere Station).

(View the Medford Street Detour Map).