description Cumberland Gap Tunnel Overview
The Cumberland Gap Tunnel is a twin-bore, four-lane highway tunnel carrying U.S. Route 25E through Cumberland Mountain on the border of Tennessee and Virginia. Opened to traffic in October 1996, the tunnel allows travelers to bypass the steep and hazardous grades of the historic Cumberland Gap. The construction project also facilitated environmental restoration efforts, aiming to return the historic mountain pass above to its 18th-century condition.
It is operated by the Federal Highway Administration and serves commercial and passenger vehicles traveling through the Appalachian region.
help Cumberland Gap Tunnel FAQ
Where is the Cumberland Gap Tunnel located?
The Cumberland Gap Tunnel is located on the border of Tennessee and Virginia, carrying U.S. Route 25E through the Appalachian Mountains. The tunnel directly passes beneath the historic Cumberland Gap, the famous natural passageway used by pioneers and early settlers traveling westward.
When did the Cumberland Gap Tunnel officially open to traffic?
The twin-bore highway tunnel officially opened to traffic in 1996 after nearly a decade of construction. Its completion allowed officials to close the treacherous, winding mountain road over the Gap and restore the area to its natural wilderness state.
How long is the Cumberland Gap Tunnel?
The tunnel actually consists of two separate tubes (one for eastbound traffic and one for westbound traffic), each measuring approximately 4,600 feet, or 1.4 kilometers, in length. The massive structure required extensive excavation through solid rock deep beneath the mountain's surface.
Why was the Cumberland Gap Tunnel built?
The tunnel was built to improve safety and reduce travel time for motorists navigating the steep, dangerous grades of the old mountain pass. Additionally, the National Park Service collaborated with the Department of Transportation to restore the Cumberland Gap to its historic 1700s appearance by removing the old asphalt highway.
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