(Charlotte St.) across Charlotte St. in Dickson, Dickson County, TN. AR48 (Main St.) SW 0.6 miles from jct with US70 in Dickson, NW (right) on AR235 (College St.) 2 blocks, SW (left) on Charlotte St. 0.1 miles to the tunnel. (N36 04.636 W87 23.452) Photo by Jack Schmidt 6-29-08.