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Current temperature in denver10/3/2023 ![]() Photo: Denver Post via Getty Images This year marks 50 years for the Eisenhower tunnel, the first route through the Continental Divide, connecting the state along Interstate 70.Weather in Eisenhower Memorial Tunnel (Colorado). Because of the gneiss mica rock, only 8 feet could be blasted at one time. 10, 1960: The south Eisenhower Tunnel included a steel lining that slowed blasting progress.
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