Starting Monday the Virginia Department of Transportation is putting nighttime lane closures in place on Interstate 81North in Montgomery County.

The lane closures will begin at 10 p.m. Monday, and will remain in effect until 6 a.m. They are expected to be in place every night from 10 p.m. to 6 a.m. Thursday.

Crews are doing bridge work on a truck climbing project in that area.

The truck climbing project is expected to be finished in November 2013.