The Massachusetts Department of Transportation on Friday announced overnight closures for the off-ramps from I-495 southbound to the Route 85 connector in Marlborough (Exit 65A) and West Main Street in Hopkinton (Exit 54A) on Tuesday, Sept. 5, and Wednesday, Sept. 6, from 10 p.m- 5 a.m. to allow for construction work.

These temporary overnight traffic impacts are necessary to allow crews and contractors to safely and effectively conduct construction operations. Drivers who are traveling through these areas should expect delays, reduce speed and use caution. All scheduled work is weather dependent and subject to change.

During the overnight work, the following detours will be in place:

— When the I-495 southbound (exit 65A) off-ramp to the Route 85 Connector in Marlborough is closed, traffic will be directed to follow the detour signs in place and use Exit 63A.

— When the I-495 southbound off-ramp to West Main Street in Hopkinton is closed, traffic will be directed to follow the detour signs in place and use Exit 50.

— Both ramps will not be closed simultaneously.

For more information on traffic conditions, travelers are encouraged to:

— Download the Mass511 mobile app or visit this link to Mass511 to view live cameras, travel times, real-time traffic conditions and project information before setting out on the road. Users can subscribe to receive text and email alerts for traffic conditions.

— Dial 511 and select a route to hear real-time conditions.

— Follow @MassDOT on X (formerly known as Twitter), to receive regular updates on road and traffic conditions.