Structure P00005057+07612 · Lake County, MT
Carries US 93 over Wildlife Underpass, 1m SE Polson.
A culvert 24 ft across. 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, so those are drawn as typical for a culvert.
| State | Montana |
| County | Lake |
| Location | 1m SE Polson |
| Carries | US 93 |
| Crosses | Wildlife Underpass |
| Coordinates | 47.67635, -114.10844 |
| Material | Steel |
| Design | Culvert |
| Total Length | 24.3 ft (7.4 m) |
| Max Span | 24.3 ft (7.4 m) |
| Deck Area | 86.6 sq m |
| Main Spans | 1 |
| Year Built | 2006 |
| Avg Daily Traffic | 7,999 (2023) |
| Truck Traffic | 2% |
| Lanes On Bridge | 2 |
| Last Inspection | January 2025 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Scour Critical | Not applicable |
| Structure Number | P00005057+07612 |
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.