Tunnel Approach
We are not just another bore!!!
  

The Twin Bores

The Eisenhower/Johnson Memorial Tunnels were designed as "twin bores".  Construction on the first bore (North Tunnel) began March 15, 1968 and was completed five years later on March 8, 1973.  This westbound bore was originally called the Straight Creek Tunnel, and later was officially named the Eisenhower Memorial Bore.  Construction on the second bore (South Tunnel) began August 18, 1975 and was completed four years later on December 21, 1979.  This eastbound bore was named after Edwin C. Johnson, a past Governor and U.S. Senator who had actively supported an interstate highway system across Colorado.
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West approach

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East approach
Photos courtesy of Gregg Gargan, CDOT
 
Eisenhower Tunnel Welcome Page
Table of Contents
Description of Eisenhower Tunnel Functions
Photos of Eisenhower
The Twin Bores
Count of Traffic through the Tunnel
Eisenhower News
Eisenhower Tunnel Contact Information
Colorado Department of Transportation
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