Cambridge Street Tunnel Westbound Closure August 27

On Wednesday, Aug. 27, the westbound side of Cambridge Street Tunnel (traveling towards Harvard Sq./Mass Ave) will be closed from 4 a.m. - 4 p.m. as the City’s contractor, MIG Corporation, will be pouring a portion of the new concrete flooring in this portion of the tunnel. 

Motorists travelling in the eastbound lanes will not be impacted.

Link to Detour Map.



Visiting City Hall

Cambridge City Hall

795 Massachusetts Ave
Cambridge MA, 02139
Ph: 617-349-4000
TTY: 617-349-4242

Hours of Service

Monday: 8:30am-8pm
Tuesday-Thursday: 8:30am-5pm
Friday: 8:30am-12pm

Louis DePasquale
City Manager

Lisa C. Peterson
Deputy City Manager