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Transportation
Red Cliff Arch
K-18-R
L-19-F
Hangar 61
Constructed in 1959 within the former Stapleton International Airport complex, this unique 9,400 square foot cement structure is an example of how sophisticated engineering can make an innovative architectural design a reality. This barrel-vaulted, thin-shelled...
Historic Bridges of Colorado
Historic Bridges of Colorado highlights 23 preservation-priority bridges identified through Colorado Preservation, Inc.’s Endangered Places Program and the Colorado Department of Transportation. These bridges represent the state’s transportation history, engineering innovation, and long-term preservation planning for historic bridge resources.
Genesee Park Interchange
The Genesee Park Interchange in Jefferson County is a 1970 continuous steel box girder bridge carrying US 40 over I-70. Known as the “Picture Bridge,” it is significant as Colorado’s first continuous steel box girder bridge and a preservation-priority historic bridge.