Roads

  1. What is the highest point on an interstate highway?

    The highest point on an interstate highway is the west portal of the Eisenhower Tunnel on Interstate 70 in Colorado, which is 11,153 feet above sea level.

    Source: 

    Federal Highway Administration

    Notes: 

    For more information see the Colorado Department of Transportation's Eisenhower/Johnson Memorial Tunnels web site.

    Fast Fact Topic: 
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