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. Share: Continue Reading Previous: Will drop in gas prices continue?Next: New partnership benefits Explore Park Related Stories 1 min read Median home prices rise in Roanoke County Denise Membreno January 20, 2025 1 min read Downtown Roanoke Restaurant Week Returns Denise Membreno January 17, 2025 1 min read The health benefits of Dry January Denise Membreno January 17, 2025