Structure 15060 · Camas County, ID
Carries US 20 over Johnson Creek, 1.9 E. Fairfield.
Set by its lowest-rated component: Deck and Superstructure and Substructure at 6 of 9.
How ratings work24 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 multi-beam bridge.
| State | Idaho |
| County | Camas |
| Location | 1.9 E. Fairfield |
| Carries | US 20 |
| Crosses | Johnson Creek |
| Coordinates | 43.34219, -114.75436 |
| Material | Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 24.0 ft (7.3 m) |
| Max Span | 22.0 ft (6.7 m) |
| Deck Width | 30.5 ft (9.3 m) |
| Deck Area | 67.9 sq m |
| Main Spans | 1 |
| Year Built | 1958 |
| Avg Daily Traffic | 1,900 (2023) |
| Truck Traffic | 25% |
| Lanes On Bridge | 2 |
| Last Inspection | May 2023 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Historical significance is not determined |
| Scour Critical | 3 — Scour critical |
| Structure Number | 000000000015060 |
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.