A mudslide on the north carolina side resulted in a partial. interstate 40, a major thoroughfare through the southern appalachians, is closed in both directions: 64 and dozens of other u. s. interstate 40, a major thoroughfare through the southern appalachians, is closed in both directions: as of 10 a. m. Monday, the tennessee department of transportation said 14 state route closures and three interstate closures were in effect.
