Devil's Gate Trestle Rebuilt trestle on the Georgetown Loop Railroad Open to traffic Built 1877 by the Colorado Central Railroad. Dismantled
1939, but rebuilt 1984
Miner Street Bridge Reconstructed pony truss bridge over Clear Creek on Miner Street in Idaho Springs Open to traffic Built 1902 by Kuyes and Work. Reconstructed 1990 (the trusses are no longer load-bearing).
Tunnel No. 4 Abandoned tunnel on CO 119 near the junction with US 6 Still intact, but boarded up after the roads were realigned to make this tunnel unnecessary Built 1939
Tunnel No. 5 Tunnel on US 6 in Clear Creek Canyon Open to two-lane traffic Built 1939
Tunnel No. 6 Tunnel on US 6 in Clear Creek Canyon Open to two-lane traffic Built 1939