A traffic alert for Montgomery County later Wednesday.

In just a few hours, be ready for slow moving traffic on Interstate 81.

Workers have blasting planned as a part of their truck climbing lane project.

If the weather isn't bad, they'll do that blasting around 10:30 a.m.

Also at that time, State Police will start to slow traffic headed both north and south.

If you're headed south, you'll have to slow down starting soon after you cross the Roanoke County line.

If you're headed north, the slowdown starts at Route Eight in Christiansburg.