We’re just north of the intersection of Highway 36 and Moreland Drive, near Colonial Heights (centers at 36.491976, -82.504663). The railroad goes under Ft. Henry
Drive (Highway 36) and into this 502′ tunnel, completed in 1912. Walking up to the tunnel, you can easily see how the highway overpass was added to when Ft. Henry Drive was taken to four lanes. Interestingly (to me), the railroad concrete bridge over Reedy Creek in Kingsport is dated 1907, and it’s on this line. North first, south later, I guess. Gray tunnel, also known as Free Hill tunnel, is next, close to the now long gone Gray Station. See you there.