Old Kipling Street Bridge
Pony truss bridge over Bear Creek on Old Kipling Street in Denver
Open to traffic
Built 1935; rehabilitated 1988

Park Avenue Bridge
Pony truss bridge over Bear Creek on Park Avenue in Morrison
Open to traffic
Built 1926; rehabilitated 1992

Sawmill Gulch Bridge
Lost open-spandrel arch bridge over Sawmill Gulch on CO 74
Replaced by a new bridge
Built 1935; replaced 1999

Tunnel No. 1
Tunnel on US 6 west of Golden
Open to two-lane traffic
Built 1951

Tunnel No. 2
Tunnel on US 6 west of Golden
Open to two-lane traffic
Built 1941

Tunnel No. 3
Tunnel on US 6 west of Golden
Open to two-lane traffic
Built 1957