Eisenhower and Johnson Memorial Tunnels celebrate 50 years
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Eisenhower and Johnson Memorial Tunnels celebrate 50 years

50 years ago the 1.7 mile long I-70 tunnel opened to traffic. CDOT details the construction of the tunnel, including obstacles, and bring us up to ‘today’. It is at 11,200 feet altitude.
==Amazing facts, like — In 2022, an average of 35,000 vehicles passed through the tunnel a day with a total of 13 million vehicles through the year.