IRR Us012 over Br Snake Ck
Fair Condition61 years old1,091 vehicles/day
Location
| State | South Dakota |
| County | Corson |
| Location | 1.7 NW Jct Sd 20 |
| Carries | IRR Us012 |
| Crosses | Br Snake Ck |
| Coordinates | 45.57667, -100.59134 |
Condition Ratings
| Overall Condition | Fair |
| Channel/Waterway | 7 (Good) |
| Culvert | 5 (Fair) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Culvert |
| Total Length | 21.3 ft (6.5 m) |
| Max Span | 10.5 ft (3.2 m) |
| Deck Area | 75.4 sq m |
| Main Spans | 2 |
| Year Built | 1965 |
Traffic
| Avg Daily Traffic | 1,091 (2024) |
| Truck Traffic | 20% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | October 2024 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000016687258 |