How much did Cumberland Gap Tunnel cost to build?
The Cumberland Gap Tunnel is the twin-bore, four-lane road tunnel of about 4,600 ft carrying US 25E under Cumberland Mountain between Kentucky and Tennessee, administered by the Federal Highway Administration's Eastern Federal Lands Highway Division for the National Park Service, with construction beginning on 21 June 1991 and opening to traffic on 18 October 1996. The tunnel's own site and the Roads to the Future website say it was completed at a cost of 280 million dollars.
Final project cost
$280 million
Cost basis: 1996
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Cost evidence
Basis of the published figure
Final project cost1996
Project record