Structure C219 · Big Horn County, MT
Carries IRR BIA RTE 226 over Black Canyon Creek, 51.5 Km SW Of Lodge Grass.
21 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 channel-beam bridge.
| State | Montana |
| County | Big Horn |
| Location | 51.5 Km SW Of Lodge Grass |
| Carries | IRR BIA RTE 226 |
| Crosses | Black Canyon Creek |
| Coordinates | 45.12439, -107.89835 |
| Material | Concrete |
| Design | Channel Beam |
| Total Length | 21.0 ft (6.4 m) |
| Max Span | 20.0 ft (6.1 m) |
| Deck Width | 19.0 ft (5.8 m) |
| Deck Area | 37.1 sq m |
| Main Spans | 1 |
| Year Built | 1965 (reconstructed 1989) |
| Avg Daily Traffic | 5 (2024) |
| Truck Traffic | 2% |
| Lanes On Bridge | 2 |
| Last Inspection | June 2024 |
| Inspection Frequency | Every 24 months |
| Owner | Bureau of Indian Affairs |
| Historical Significance | Bridge is not eligible for the National Register |
| Scour Critical | 5 — Stable for scour |
| Structure Number | 00000000000C219 |
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.