IRR Us012 over Hay Ck
Fair Condition64 years old424 vehicles/day
Location
| State | South Dakota |
| County | Corson |
| Location | 6.7 E Perkins Co Line |
| Carries | IRR Us012 |
| Crosses | Hay Ck |
| Coordinates | 45.93398, -101.86082 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 5 (Fair) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 3 — Scour critical |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Slab |
| Total Length | 80.1 ft (24.4 m) |
| Max Span | 28.2 ft (8.6 m) |
| Deck Width | 34.4 ft (10.5 m) |
| Deck Area | 256.2 sq m |
| Main Spans | 3 |
| Year Built | 1962 |
Traffic
| Avg Daily Traffic | 424 (2024) |
| Truck Traffic | 24% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | December 2024 |
| Inspection Frequency | Every 12 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000016072011 |