The Medford St. Underpass Closed Traffic Detoured thesomervillenewsweekly 11 years ago The Medford St. underpass between Somerville Ave. and Ward St. will be closed through this evening while MWRA workers fix a flooding issue under the bridge. Drivers should seek alternate routes. Stay tuned for updates. Share this: Share on X (Opens in new window) X Share on Facebook (Opens in new window) Facebook