IRR BIA RTE 73 over Big Horn Canal
Good Condition40 years old200 vehicles/day
Location
| State | Montana |
| County | Big Horn |
| Location | 4.5 Km SE Of St. Xavier |
| Carries | IRR BIA RTE 73 |
| Crosses | Big Horn Canal |
| Coordinates | 45.43186, -107.70397 |
Condition Ratings
| Overall Condition | Good |
| Deck | 8 (Very Good) |
| Superstructure | 8 (Very Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 47.2 ft (14.4 m) |
| Max Span | 44.9 ft (13.7 m) |
| Deck Width | 34.1 ft (10.4 m) |
| Deck Area | 149.8 sq m |
| Main Spans | 1 |
| Year Built | 1986 |
Traffic
| Avg Daily Traffic | 200 (2024) |
| Truck Traffic | 20% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 624 |
| Inspection Frequency | Every 24 months |
| Owner | Bureau of Indian Affairs |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 00000000000C221 |