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Published on Dec 4, 2009
The Eisenhower Tunnel is a vehicular tunnel located on Interstate 70 approximately 60 miles west of Denver, Colorado. The tunnel was built under the Continental Divide, and at a maximum elevation of 11,158 ft (3,401 m) above sea level, it is one of the highest vehicular tunnels in the world. It is also the longest mountain tunnel built under the Interstate highway program and one of the last major pieces of the system to be completed. Its full official name is the Eisenhower/Johnson Memorial Tunnel; the westbound bore is named after U.S. President Dwight D. Eisenhower (for whom the Interstate system is also named), the eastbound bore after Edwin C. Johnson, a former governor and U.S. Senator from Colorado who lobbied for an Interstate Highway to be built across Colorado. The tunnel is a two-bore tunnel with each bore approximately 1.7 mi (2.74 km) long.