Unstable slope means more blasting on Interstate 81 in Montgomery County Timothy Martin July 30, 2013 1 min read An unstable slope is expected to cause delays starting tomorrow On Interstate 81 in Montgomery County. WFIR’s Timothy Martin reports. About the Author Timothy Martin Author's posts Share: Continue Reading Previous: Will drop in gas prices continue?Next: New partnership benefits Explore Park Related Stories 1 min read Regional Chamber has new home on Franklin Road Gene Marrano July 22, 2025 1 min read High heat brings out the utility bill scammers Gene Marrano July 22, 2025 1 min read Carnegie Foundation chooses Roanoke County Public Schools for the Future of High School Network Denise Membreno July 22, 2025