More highway work is being done in Springfield ahead of the opening of the MGM casino.
MassDOT plans to close I-91 South in Springfield between Exits 6 and 3 for paving operations until 6 a.m. Thursday.
Southbound traffic is being diverted onto West Columbus Avenue.
Detour signs will be posted.
Drivers are advised to slow down and expect delays.
Bad weather could postpone any scheduled work.