IRR - S 313 over Williams Coulee
Good Condition5 years old899 vehicles/day
Location
| State | Montana |
| County | Big Horn |
| Location | 1m S Hardin |
| Carries | IRR - S 313 |
| Crosses | Williams Coulee |
| Coordinates | 45.70388, -107.62193 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Concrete |
| Design | Slab |
| Total Length | 73.2 ft (22.3 m) |
| Max Span | 27.9 ft (8.5 m) |
| Deck Width | 35.4 ft (10.8 m) |
| Deck Area | 240.8 sq m |
| Main Spans | 3 |
| Year Built | 2021 |
Traffic
| Avg Daily Traffic | 899 (2023) |
| Truck Traffic | 17% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | December 2023 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000202106632 |