478 AVE over I029
Fair Condition65 years old65 vehicles/day
Location
| State | South Dakota |
| County | Union |
| Location | 1.3 SE Of Elk Point |
| Carries | 478 AVE |
| Crosses | I029 |
| Coordinates | 42.65752, -96.64559 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Box Beam - Multiple |
| Total Length | 365.2 ft (111.3 m) |
| Max Span | 100.1 ft (30.5 m) |
| Deck Width | 27.9 ft (8.5 m) |
| Deck Area | 946.0 sq m |
| Main Spans | 4 |
| Year Built | 1961 |
Traffic
| Avg Daily Traffic | 65 (2023) |
| Truck Traffic | 2% |
| Lanes On Bridge | 2 |
| Lanes Under Bridge | 4 |
Inspection & Ownership
| Last Inspection | 225 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000064080296 |