Structure 85819000000000 · Whitman County, WA
Carries Swannack/4060 over Unnamed Drainage, 2.30 Mi SE Potts.
Set by its lowest-rated component: Deck and Superstructure and Substructure at 7 of 9.
How ratings work25 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 slab bridge.
| State | Washington |
| County | Whitman |
| Location | 2.30 Mi SE Potts |
| Carries | Swannack/4060 |
| Crosses | Unnamed Drainage |
| Coordinates | 47.16317, -117.87125 |
| Material | Prestressed Concrete |
| Design | Slab |
| Total Length | 24.9 ft (7.6 m) |
| Max Span | 24.0 ft (7.3 m) |
| Deck Width | 24.0 ft (7.3 m) |
| Deck Area | 55.5 sq m |
| Main Spans | 1 |
| Year Built | 1991 |
| Avg Daily Traffic | 20 (2021) |
| Truck Traffic | 25% |
| Lanes On Bridge | 2 |
| Last Inspection | November 2023 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Historical significance is not determined |
| Scour Critical | Unknown |
| Structure Number | 085819000000000 |
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.