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The Eisenhower Memorial Tunnel is a vehicular tunnel that is 8,491 feet or 1.693 miles. The tunnel lies about 60 miles west of Denver, Colorado. The Eisenhower Tunnel passes directly under the Continental Divide.

The Tunnel sits at about 11,000 ft above sea level. This measurement varies depending on where you are in the tunnel.

The interior dimensions of the tunnel are 16 feet 4 inches from the pavement to the tile ceiling. The clearance has been adjusted to 13 feet 6 inches with the addition of road warning signs. The are two lanes of travel in each direction with 13 feet of space in each lane. Add all that to the walkway and the total width of each tunnel is 29 feet.