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Today in Interstate History

Interstate 25 looking northbound at the Wyomin state line. Photo courtesy of the Colorado Department of Transportation.

October 11, 1964

A 26-mile-stretch of I-25 linking Wellington, Colorado, to Cheyenne, Wyoming, was officially opened to traffic. That high-altitude stretch of the Interstate System had been built on what was once a wagon roadway dating back to the Civil War era.