| Name | Location | Status | Design | Year Built | Year Lost | Span Length | Total Length |
|---|---|---|---|---|---|---|---|
| Devil's Gate Trestle | Bridge over Clear Creek | Open to traffic | Deck plate girder | 1877 | -- | 60.0 ft. | 299.8 ft. |
| Georgetown Loop Deck Truss Bridge | Bridge over Clear Creek | Open to traffic | Double-intersection Warren deck truss | -- | -- | -- | -- |
| Georgetown Loop Plate Girder Bridge | Bridge over Clear Creek | Open to traffic | Pony/through plate girder | -- | -- | -- | -- |
| Georgetown Loop Pony Truss Bridge | Bridge over Clear Creek | Open to traffic | Pratt pony truss | -- | -- | -- | -- |
| Miner Street Bridge | Miner Street over Clear Creek | Open to traffic | Pratt pony truss | 1902 | -- | 70.8 ft. | 75.1 ft. |
| Tunnel No. 4 | CO 119 under a rock formation | Still intact, but boarded up after the roads were realigned to make this tunnel unnecessary | Tunnel | 1939 | -- | -- | 191.9 ft. |
| Tunnel No. 5 | US 6 under a rock formation | Open to two-lane traffic | Tunnel | 1939 | -- | -- | 411.1 ft. |
| Tunnel No. 6 | US 6 under a rock formation | Open to two-lane traffic | Tunnel | 1939 | -- | -- | 587.9 ft. |