Unstable slope means more blasting on Interstate 81 in Montgomery County Timothy Martin July 30, 2013 1 minute read An unstable slope is expected to cause delays starting tomorrow On Interstate 81 in Montgomery County. WFIR’s Timothy Martin reports. Share: Post navigation Previous: Will drop in gas prices continue?Next: New partnership benefits Explore Park Related Stories Ronald McDonald House of Southwest Virginia and other “Houses,” want to make sure people understand their mission. Gene Marrano May 22, 2026 Roanoke mayor addresses budget cuts, FLOCK surveillance technology Ian Price May 22, 2026 Vinton acquires properties damaged in 2022 fire to support revitalization efforts Web Staff May 22, 2026