471st Avenue over Ck
Poor Condition101 years old1,305 vehicles/day
Location
| State | South Dakota |
| County | Brookings |
| Location | 5.8s Brookings |
| Carries | 471st Avenue |
| Crosses | Ck |
| Coordinates | 44.22772, -96.78757 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 4 (Poor) |
| Superstructure | 4 (Poor) |
| Substructure | 4 (Poor) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | Unknown |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 52.5 ft (16 m) |
| Max Span | 25.6 ft (7.8 m) |
| Deck Width | 33.1 ft (10.1 m) |
| Deck Area | 161.6 sq m |
| Main Spans | 2 |
| Year Built | 1925 (reconstructed 1937) |
Traffic
| Avg Daily Traffic | 1,305 (2022) |
| Truck Traffic | 3% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 924 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000006170218 |