473rd Avenue over Big Slough Creek
Fair Condition73 years old620 vehicles/day
Location
| State | South Dakota |
| County | Roberts |
| Location | 0.9n Of Rosholt |
| Carries | 473rd Avenue |
| Crosses | Big Slough Creek |
| Coordinates | 45.87636, -96.73000 |
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 | 53.5 ft (16.3 m) |
| Max Span | 20.0 ft (6.1 m) |
| Deck Width | 28.2 ft (8.6 m) |
| Deck Area | 140.2 sq m |
| Main Spans | 3 |
| Year Built | 1953 |
Traffic
| Avg Daily Traffic | 620 (2022) |
| Truck Traffic | 3% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 624 |
| Inspection Frequency | Every 12 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000055240041 |