IRR Us018 over Choteau Ck
Fair Condition66 years old387 vehicles/day
Location
| State | South Dakota |
| County | Charles Mix |
| Location | 3.4 E Of US 281 Junction |
| Carries | IRR Us018 |
| Crosses | Choteau Ck |
| Coordinates | 43.24147, -98.27939 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 3 — Scour critical |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Slab |
| Total Length | 242.1 ft (73.8 m) |
| Max Span | 23.3 ft (7.1 m) |
| Deck Width | 34.4 ft (10.5 m) |
| Deck Area | 774.9 sq m |
| Main Spans | 10 |
| Year Built | 1960 |
Traffic
| Avg Daily Traffic | 387 (2024) |
| Truck Traffic | 16% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 724 |
| Inspection Frequency | Every 12 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000012514180 |