Nada Tunnel into Red River Gorge is a one-lane 12ft x 13ft hole — route big rigs around it
The famous Nada Tunnel on KY 77 in Powell County is a single 900-foot former railroad bore, only about 12 feet wide and 13 feet high, carrying two-way traffic one car at a time. The Forest Service tells anything over 12 feet wide or 12 feet tall to skip it entirely and enter the Red River Gorge Scenic Byway from the KY 715 end or the north side via KY 77. A typical Class A or tall Class C should not aim its GPS at Nada Tunnel — plan the loop direction before you leave.
Source: USDA Forest Service — Daniel Boone NF, Red River Gorge Scenic Byway




