IRR - S 313 over Rotten Grass Creek
Fair Condition43 years old621 vehicles/day
Location
| State | Montana |
| County | Big Horn |
| Location | Saint Xavier |
| Carries | IRR - S 313 |
| Crosses | Rotten Grass Creek |
| Coordinates | 45.45816, -107.72157 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 5 (Fair) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Slab |
| Total Length | 60.0 ft (18.3 m) |
| Max Span | 23.0 ft (7 m) |
| Deck Width | 30.2 ft (9.2 m) |
| Deck Area | 168.4 sq m |
| Main Spans | 3 |
| Year Built | 1983 |
Traffic
| Avg Daily Traffic | 621 (2023) |
| Truck Traffic | 7% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | November 2023 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | S00313023+08091 |