474th Avenue over Big Slough Creek
Poor Condition66 years old30 vehicles/day
Location
| State | South Dakota |
| County | Roberts |
| Location | 1e & 1n Of Rosholt |
| Carries | 474th Avenue |
| Crosses | Big Slough Creek |
| Coordinates | 45.88214, -96.70936 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 4 (Poor) |
| Superstructure | 4 (Poor) |
| Substructure | 4 (Poor) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | Unknown |
Physical Characteristics
| Material | Wood or Timber |
| Design | Stringer/Multi-beam |
| Total Length | 24.6 ft (7.5 m) |
| Max Span | 23.0 ft (7 m) |
| Deck Width | 24.6 ft (7.5 m) |
| Deck Area | 56.2 sq m |
| Main Spans | 1 |
| Year Built | 1960 |
Traffic
| Avg Daily Traffic | 30 (2022) |
| Truck Traffic | 2% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 624 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000055250037 |