Rough Ridge Tunnel

Tunnels

Parkway tunnels are a significant design feature along the historic route. Twenty-five of the twenty-six tunnels along the Parkway are in North Carolina, with all Parkway tunnels representing 36% of the entire National Park Service tunnel inventory. Tunnels along the Parkway were often constructed to reduce excessive scarring that open cuts would entail, enabling the Parkway to cross through ridges in the interest of maintaining the most desirable route location. The distinctive stone masonry portals on most Parkway tunnels were generally not part of the original construction, added later in the 1950s and 1960s.

Milepost Name Length Min. Height Max. Height
53.1 Bluff Mountain Tunnel 630' 13' 7" 19' 1"
333.1 Little Switzerland Tunnel 630' 13' 7" 19' 1"
336.8 Wildacres Tunnel 330' 13' 1" 19' 10"
344.5 Twin Tunnel (North) 300' 16' 21'
344.7 Twin Tunnel (South) 401' 14' 7" 19' 7"
349 Rough Ridge Tunnel 150' 13' 9" 21' 6"
364.4 Craggy Pinnacle Tunnel 245' 14' 1" 19' 9"
365.5 Craggy Flats Tunnel 400' 14' 4" 19' 5"
374.4 Tanbark Ridge Tunnel 780' 14' 1" 19' 5"
397.1 Grassy Knob Tunnel 770' 13' 7" 19' 2"
399.1 Pine Mountain Tunnel 1434' 14' 2" 19' 3"
400.9 Ferrin Knob #1 Tunnel 561' 14' 2" 19' 6"
401.3 Ferrin Knob #2 Tunnel 421' 14' 19' 2"
401.5 Ferrin Knob #3 Tunnel 375' 13' 9" 19' 5"
403 Young Pisgah Ridge Tunnel 412' 14' 6" 19' 8"
404 Fork Mountain Tunnel 389' 14' 19' 2"
406.9 Little Pisgah Tunnel 576' 13' 10" 19' 5"
407.3 Buck Springs Tunnel 462' 13' 8" 19' 2"
410.1 Frying Pan Tunnel 577' 13' 8" 19' 9"
422.1 Devil’s Courthouse Tunnel 665' 14' 2" 19'
439.7 Pinnacle Ridge Tunnel 813' 13' 10" 19' 1"
458.8 Lickstone Ridge Tunnel 402' 11' 1" 13' 1"
459.3 Bunches Bald Tunnel 255' 10' 6" 13' 4"
461.2 Big Witch Tunnel 348' 11' 3" 18' 1"
465.6 Rattlesnake Mountain Tunnel 395' 14' 5" 19' 6"
466.2 Sherrill Cove Tunnel 550' 14' 4" 19' 7"