IRR Us012 over Claymore Ck
Poor Condition68 years old1,378 vehicles/day
Location
| State | South Dakota |
| County | Corson |
| Location | 2.4 W Walworth Co Line |
| Carries | IRR Us012 |
| Crosses | Claymore Ck |
| Coordinates | 45.55865, -100.51579 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 4 (Poor) |
| Superstructure | 5 (Fair) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 251.6 ft (76.7 m) |
| Max Span | 52.8 ft (16.1 m) |
| Deck Width | 32.2 ft (9.8 m) |
| Deck Area | 751.7 sq m |
| Main Spans | 5 |
| Year Built | 1958 |
Traffic
| Avg Daily Traffic | 1,378 (2024) |
| Truck Traffic | 16% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | October 2024 |
| Inspection Frequency | Every 12 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000016725271 |