Interstate 93 southbound into Boston will be closed Tuesday night, with a detour through Somerville.
Maintenance work on the roadway will require a complete shutdown of the southbound lanes beginning Tuesday at 11 p.m. and ending Wednesday at 5 a.m., according to the Massachusetts Department of Transportation.
Southbound traffic will be detoured off the highway at Route 38/Mystic Avenue in Somerville and allowed to re-enter at the Albany Street on-ramp.
Traffic destined for Interstate 90 westbound will access the highway via an on-ramp just south of Kneeland Street.
Work will include wall washing, catch-basin clearing and additional maintenance activities.
The closure is part of a twice-monthly series of overnight I-93 lane closures designed to allow for routine maintenance.