I-93 South near Sullivan Square will be closed overnight between 12:30 a.m. and 5:00 a.m. on Tuesday, September 1, 2009. In addition, the on-ramps to I-93 South from Mystic Avenue will be closed at the same times.
All traffic will be detoured through Sullivan Square to Rutherford Avenue southbound to the I-93 South on-ramp at Haymarket Square. Those motorists destined for Storrow Drive should take a right on the Gilmore Bridge to Leverett Circle. In addition, ongoing pavement resurfacing, bridge deck and lighting repair will cause nighttime lane closures on I-93 North and South of Boston.
In addition the I-93 South on-ramps from the Tobin, from Rutherford Avenue, from Leverett Circle and from Haymarket will be closed and detoured. The I-93 South/I-90 West on-ramp at Congress Street will remain open.
This full closure is the second of a more efficient, cost-saving Mass Turnpike Authority traffic plan. By closing segments of the interstate tunnel system once a month at selected time frames not expected to impact the majority of drivers, more extensive maintenance, construction, sign installation, electrical and other utility work can be accomplished.
MassHighway also wants to remind drivers they may experience delays this summer due to lane closures at night on I-93 North and South between Medford and Somerville and from Boston to Quincy from 9 pm to 5 am Sunday though Friday. These lane closures allow MassHighway contractors to complete pavement resurfacing, bridge deck and lighting repairs.
Portions of the outside lanes on the upper deck of the Tobin Bridge will have temporary off-peak closures from 10 a.m. to 7 p.m. Monday through Thursday for electrical work for the bridge's lighting project. On the lower level northbound the left lane remains closed, with one traffic lane in effect each night from 8 p.m. to 5 a.m. as re-decking work continues.