Virginia Department of Transportation officials are asking motorists to watch for buckling pavement caused by extreme heat.

Consistent temperatures in the mid- to high 90s have put local road surfaces at high risk for buckling, according to Albert Rollins, VDOT’s interstate maintenance manager in northern Virginia.

“Pavement expands in the heat, and cannot contract if it does not cool down enough overnight,” he said in a statement. “It continues to expand, and that’s when we see damage.”

There have been no reports of damaged pavement in Loudoun County, according to VDOT spokeswoman Joan Morris.

However, VDOT crews repaired areas of buckling pavement July 21 on Interstate 395 near Seminary Road in Alexandria, and northern Virginia crews will be on special alert for emergency repairs this weekend as temperatures are expected to reach in excess of 100 degrees.

Drivers are asked to be prepared for lane closures if crews need to mill and repave the road surface.

Motorists in northern Virginia can report potholes, buckling pavement and other road problems through VDOT’s online request form or by calling 703-383-VDOT.