Structure R0277 · Koochiching County, MN
Carries Sfr 97 over Lost River, 7.5 Mi E Of W Co Line.
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 | Minnesota |
| County | Koochiching |
| Location | 7.5 Mi E Of W Co Line |
| Carries | Sfr 97 |
| Crosses | Lost River |
| Coordinates | 48.08949, -94.26533 |
| Material | Steel |
| Design | Culvert |
| Total Length | 24.0 ft (7.3 m) |
| Max Span | 8.5 ft (2.6 m) |
| Deck Area | 35.8 sq m |
| Main Spans | 1 |
| Year Built | 1981 |
| Avg Daily Traffic | 1 (2009) |
| Lanes On Bridge | 1 |
| Last Inspection | October 2024 |
| Inspection Frequency | Every 24 months |
| Owner | State Park/Forest Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Scour Critical | 8 — Stable, low risk |
| Structure Number | R0277 |
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.