Structure LOG55-52.8-149A · Logan County, CO
Carries County Road 55 over Lewis Creek, 1.3 Mi N Of Co RD 52.
Set by its lowest-rated component: Superstructure and Substructure at 5 of 9.
How ratings work20 ft end to end. Lengths are drawn to scale; at this length a semi-truck would be a speck. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a deck arch.
| State | Colorado |
| County | Logan |
| Location | 1.3 Mi N Of Co RD 52 |
| Carries | County Road 55 |
| Crosses | Lewis Creek |
| Coordinates | 40.82710, -103.05695 |
| Material | Aluminum/Wrought Iron/Cast Iron |
| Design | Arch - Deck |
| Total Length | 20.0 ft (6.1 m) |
| Max Span | 20.0 ft (6.1 m) |
| Deck Width | 40.0 ft (12.2 m) |
| Deck Area | 74.4 sq m |
| Main Spans | 1 |
| Year Built | 2004 |
| Avg Daily Traffic | 29 (2022) |
| Truck Traffic | 32% |
| Lanes On Bridge | 2 |
| Last Inspection | December 2023 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Scour Critical | 3 — Scour critical |
| Structure Number | LOG55-52.8-149A |
Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."
A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.