PORTLAND, Maine — Because of reconstruction of the bridge at the Exit 48 interchange on Maine Turnpike-Interstate 95, the northbound offramp to Riverside Street will be closed at 9 p.m. Tuesday for paving.

The closure will last until 5 a.m. Wednesday.

Also on Wednesday, paving crews will shut down the southbound or northbound ramp between 9 p.m. and 5 a.m. for paving, with only one ramp being closed at a time, and similar closures may be on tap for Thursday, depending on weather and any problems that may postpone these projects.