![Great American Infrastructure: The Eisenhower Memorial Tunnel Great American Infrastructure: The Eisenhower Memorial Tunnel](https://www.infrastructureusa.org/wp-content/uploads/2011/12/screen-shot-2011-12-12-at-23033-pm.png)
This is the tenth in a series of entries celebrating infrastructure achievements in the United States.
The Eisenhower Memorial Tunnel, the highest vehicular tunnel in the world, lies entirely within the Arapaho National Fores…During construction approximately 1 million cubic yards of material was cleared from each bore. 190,000 cubic yards of concrete was used for each tunnel lining.
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