This tunnel is next to US 68's Kentucky River crossing. Old maps show this tunnel as the Daniel Boone Tunnel. The tunnel appears to have been bypassed when a new bridge was constructed across the Kentucky River.
Maps from the same era show a bridge called the "Brooklyn Bridge." The Brooklyn Bridge appears to have been dismantled when this current structure was built.
Photograph copyright © 2004 by Jeffrey Carlyle. This photograph was taken on March 21, 2004.