Beginning this Friday, as part of Phase I construction of the Green Line Extension, Medford St. between McGrath Highway and Ward St. in Somerville will be closed for three weeks. This closure is expected to create significant traffic impacts, and you can learn more about detours here.

A map of the detour routes is below. As always, if you have any questions, you can email info@glxinfo.com or contact the Green Line Extension Project at 855-GLX-INFO (855-459-4636).