The Brooklyn Tunnel was the first highway tunnel in the state of Kentucky, and carried US 68 immediately north of the Brooklyn Bridge adjacent to the Kentucky River.
The Campbell Tunnels are located near near Napfor, Kentucky in Perry county, and was constructed circa 1911 for the Louisville & Nashville Railroad, which at the time operated its North Fork Kentucky River extension under the Lexington & Eastern Railroad banner.
The Cincinnati, Ohio Union Terminal tunnel carries Dalton Avenue between Kenner and Hopkins Street in the Queensgate neighborhood and was completed in 1933.
The Cumberland Gap Tunnel carries four-lanes of US 25E under Cumberland Mountain between Kentucky and Tennessee.
The East River Mountain Tunnel carries Interstate 77 and US 52 through East River Mountain between Bluefield, West Virginia and Rocky Gap, Virginia. Prior to the completion of the tunnel, through traffic had to navigate the steep and winding US 52 over East River Mountain, now designated WV and VA 598.
The OH 75 tunnel was located north of Ironton, Ohio and is a former 165-foot-long roadway tunnel that carried OH 75. It was constructed in 1866 and closed in 1960.
The John G. Huntchinson Underpass carries Virginia Street West between 7th Avenue and Park Avenue under the former Chesapeake & Ohio Railroad, today known as CSX Transportation.
The Koontz Tunnel is located in Fayette County along the Gauley River, and served the Nicholas, Fayette & Greenbrier Railroad, a paper company that was operated by both the Chesapeake & Ohio Railroad and the New York Central. The 3,164-foot tunnel was completed between 1929 and 1930.
The Line Tunnel is located near Barwick, Kentucky between Breathitt and Perry counties, and was constructed circa 1911 for the Louisville & Nashville Railroad, which at the time operated its North Fork Kentucky River extension under the Lexington & Eastern Railroad banner.
The Lothair Tunnel is located in Hazard, Kentucky and was constructed in 1911-1912 for the Louisville & Nashville Railroad, which at the time operated its North Fork Kentucky River extension under the Lexington & Eastern Railroad banner.
The McClainville Tunnel is located west of Bellaire, Ohio along the former Central Ohio Railway and was completed in 1854.
Considered one of the best ways to enter the Red River Gorge and Clifty Wilderness areas in the Daniel Boone National Forest, the 900-foot Nada Tunnel carries KY 77 under the aptly named Tunnel Ridge. Open to one-lane of automobile traffic, its original purpose was for a local logging railroad.
The North Shore Road and tunnel is an active and abandoned roadway on the north shore of Fontana Lake west of Bryson City, North Carolina. Only portions of the 34.3-mile two-lane scenic byway was ever completed in the foothills of the Great Smoky Mountains National Park. This included the last segment completed, which was a four-mile portion built between 1962 and 1970 that also included the byway’s only tunnel.
The O&K Tunnel is located 1.37 miles north of Jackson, Kentucky at O&K Junction and was constructed in 1891 by the Kentucky Union Railway.
The Wheeling Tunnel carries Interstate 70 and US 250 under Wheeling Hill in Wheeling, West Virginia. Construction of a tunnel under Wheeling Hill was spurred by the construction of the adjoining Fort Henry Bridge. With the interstate highway system proposed, the reuse of the Fort Henry Bridge was ideal for adaption for Interstate 70, which would extend from Ohio from the west into West Virginia and Pennsylvania to the east.