All American

Year : 1960

State : CO

Inter 1 : I70

Inter 2 : I70

Colorado - Interstate Route 70 westerly from Denver. View of new Interstate location as it bypasses Idaho Springs approximately 40 miles west of Denver.

Year: 1963

State: CO

Inter 1: I70

Inter 2: I70

Colorado - Interstate Route 70 westerly from Denver (Colorado Interstate Project I-70-3(1)250)). View looking northwest showing the Floyd Hill interchange completed except for a small amount of cleanup work. The project was officially opened to traffic on Dec. 11, 1959.

Year: 1967

State: CO

Inter 1: I70

Inter 2: I70

Big rock job on I-70 at historic Georgetown, near grade. Excavation ran around 1,500,00 cubic yards in 2.6 miles, much of it in solid silver plume granite.