IRR Sd065 over Hump Ck
Fair Condition70 years old234 vehicles/day
Location
| State | South Dakota |
| County | Corson |
| Location | 10.6 S Jct US 12 |
| Carries | IRR Sd065 |
| Crosses | Hump Ck |
| Coordinates | 45.76535, -101.33014 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Slab |
| Total Length | 174.5 ft (53.2 m) |
| Max Span | 35.4 ft (10.8 m) |
| Deck Width | 34.4 ft (10.5 m) |
| Deck Area | 558.6 sq m |
| Main Spans | 5 |
| Year Built | 1956 |
Traffic
| Avg Daily Traffic | 234 (2024) |
| Truck Traffic | 24% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 125 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000016329127 |