Historic Properties Mitigation
Moving Mountains: Colorado’s First Interstate Tunnels
This short film was funded by CDOT as part of the Section 106 mitigation for the Twin Tunnels Environmental Assessment, which evaluated the widening of the eastbound bore of the historic Twin Tunnels complex along Interstate 70 (I-70) just east of Idaho Springs. The Twin Tunnels were completed in 1961 and are historically significant as the first successful tunneling operation associated with the construction of I-70 and as an important early milestone in the construction of the highway through Colorado’s Rocky Mountains. The film examines the movement to build the interstate connection west of Denver and the effect of the highway on adjacent communities, including Idaho Springs.
Force of Nature: Passage and Preservation from Georgetown to Silver Plume
This short film was funded by CDOT as part of the Section 106 mitigation for a series of rock fall mitigation projects along a 2-mile stretch of Interstate 70 that extends through the Georgetown-Silver Plume National Historic Landmark District. The film examines the history of transportation challenges between Georgetown and Silver Plume and highlights current efforts to address rock fall hazards along this stretch of Interstate 70.
- Contact Us
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- Dan Jepson
Senior Staff Archaeologist
Cultural Resource Program Manager
303-757-9631
Email Dan. - Greg Wolff
Assistant Staff Archaeologist
303-757-9158
Email Greg. - Lisa Schoch
Senior Staff Historian
303-512-4258
Email Lisa. - Lauren Cooper
Assistant Staff Historian
303-757-9758
Email Lauren. - Hannah Braun
Assistant Staff Historian
303-757-9936
Email Hannah.
- Dan Jepson