Work on Interstate 81 in Montgomery County is completed.

The detour has been lifted.


VDOT now says the detour on I-81 South is expected to be removed by 12:45 p.m.


The detour on Interstate 81 South in Montgomery County is expected to be removed by noon, according to the Virginia Department of Transportation.


A detour on Interstate 81 South in Montgomery County will be extended until at least 10 a.m. VDOT says it needs more time to finish line painting.

Traffic on I-81 South is being diverted onto Route 11/460 at Exit 132 (Dixie Caverns) and back onto I-81 at Exit 118 (Christiansburg).

Also, the blasting scheduled for 10:30 a.m. Wednesday morning has been pushed up an hour to 9:30 a.m.

The rolling roadblock for blasting on I-81 North will go into place at 9:30 a.m. The roadblock will begin at Exit 114.

The rolling roadblock for I-81 South scheduled for 10:30 a.m. as part of the blasting project is no longer needed.


Workers are painting lines on Interstate 81 in Montgomery County, and the work is taking longer than expected.

Southbound traffic is being detoured off of I-81 at Dixie Caverns. You'll have to take Route 11 until Christiansburg where you can get back on the Interstate. That detour was supposed to be lifted at 6:00 a.m. Wednesday. It will now be in place until 8:00 a.m.

See below for traffic delays in the same area later Wednesday morning.


Blasting scheduled for Tuesday on Interstate 81 in Montgomery County has been postponed because of rain.

The blasting will be pushed back until 10:30 a.m. Wednesday.

The Virginia Department of Transportation is rebuilding an unstable slope on I-81 South near mile marker 124 in Montgomery County.

This work is part of a truck climbing lane project that is expected to be finished in November 2013.

Here is the original news release from VDOT:

Weather permitting, the following traffic impacts will take place as construction continues on the five mile truck climbing project on southbound Interstate 81 in Montgomery County.

On Monday, Aug. 12, a southbound detour will be in place from 10 p.m. until 6 a.m. the following morning. Southbound I-81 traffic will be detoured at exit 132 (Dixie Caverns) onto Route 11/460 and back onto I-81 at exit 118 (Christiansburg). Signs and message boards will be in place to alert drivers.

In order to reconstruct an unstable slope on southbound Interstate 81 near mile marker 124 in Montgomery County, contractors have scheduled to blast on Tuesday, Aug. 13.

As a safety precaution, slow roll lane closures during blasting will be in place on north and southbound I-81 beginning at approximately 10:30 a.m. State Police will slow traffic in both directions to keep the area near the blast clear of traffic. Once the blast has occurred, traffic will be released to travel at a normal speed. Drivers should expect delays.