IRR - I 90 over Little Bighorn River
Good Condition46 years old2,082 vehicles/day
Location
| State | Montana |
| County | Big Horn |
| Location | 8m S Crow Agency |
| Carries | IRR - I 90 |
| Crosses | Little Bighorn River |
| Coordinates | 45.49440, -107.39316 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 164.7 ft (50.2 m) |
| Max Span | 81.0 ft (24.7 m) |
| Deck Width | 44.3 ft (13.5 m) |
| Deck Area | 677.7 sq m |
| Main Spans | 2 |
| Year Built | 1980 |
Traffic
| Avg Daily Traffic | 2,082 (2023) |
| Truck Traffic | 23% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 524 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | I00090517+05022 |