Gateway to the High Country
As the highest vehicular tunnel in the world, with an elevation of 11,155 feet, the Eisenhower-Johnson Memorial Tunnel is a massive engineering achievement. Armed with 150 security cameras and serving over 30,000 motorists per day, the Tunnel runs as a well-oiled machine. However, years of political and geological challenges almost prevented this "gateway to the high country" from being created.
Additional Reading
Colorado Department of Transportation
Colorado Encyclopedia – Eisenhower Tunnel