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 Virginia Western’s new NC3 Leadership School designation means certificate programs with national recognition Gene Marrano July 2, 2026 A Local Wealth Management Firm has Achieved National Recognition Emma Thomas July 2, 2026 As Roanoke Arts Commission crafts “Plan 26,” they ask residents to weigh in via an arts and culture survey online Gene Marrano July 1, 2026