471st Avenue over Trib. To Big Sioux River
Fair Condition101 years old614 vehicles/day
Location
| State | South Dakota |
| County | Moody |
| Location | 1e & 10.9n Of Colman |
| Carries | 471st Avenue |
| Crosses | Trib. To Big Sioux River |
| Coordinates | 44.13673, -96.78884 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 5 (Fair) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 3 — Scour critical |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Slab |
| Total Length | 36.1 ft (11 m) |
| Max Span | 11.2 ft (3.4 m) |
| Deck Width | 33.5 ft (10.2 m) |
| Deck Area | 112.2 sq m |
| Main Spans | 3 |
| Year Built | 1925 (reconstructed 1938) |
Traffic
| Avg Daily Traffic | 614 (2022) |
| Truck Traffic | 3% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 724 |
| Inspection Frequency | Every 12 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000051050041 |