IRR Us012 over Grand Rv
Fair Condition66 years old636 vehicles/day
Location
| State | South Dakota |
| County | Corson |
| Location | 8.2 NW Jct Sd 20 |
| Carries | IRR Us012 |
| Crosses | Grand Rv |
| Coordinates | 45.65989, -100.63933 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 5 (Fair) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 556.1 ft (169.5 m) |
| Max Span | 120.1 ft (36.6 m) |
| Deck Width | 32.2 ft (9.8 m) |
| Deck Area | 1661.1 sq m |
| Main Spans | 5 |
| Year Built | 1960 |
Traffic
| Avg Daily Traffic | 636 (2024) |
| Truck Traffic | 16% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 523 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000016665200 |