The Big Obstacle In August 1865 early snows defeated the Central Pacific's initial attempt to begin work on Tunnel No. 6, the Summit Tunnel. The grand engineering feat of the Sierra Nevada would ...

As Colorado Department of Transportation officials were contemplating closing the westbound bore of the Eisenhower-Johnson ...

2. Donner Lake, California This is a view of Donner Lake from the eastern end of Summit Tunnel. We are, in fact, standing on top of the 1,659-foot tunnel looking east. The tunnel itself is ...

Editor’s Note: This story has been updated to correct which side of the tunnel a closure was being contemplated. People who frequently drive through the Eisenhower-Johnson Memorial Tunnels on ...

With the centerpiece of a tolled Fernpass summit tunnel. A more than controversial project, as we know today. Now there could also be a delay.

The tunnel lies some 2,480 metres beneath the Aiguille du Midi summit, making it the second deepest operational tunnel in the world in operation after Gotthard Base Tunnel in Switzerland.