330th Street over I029
Fair Condition65 years old488 vehicles/day
Location
| State | South Dakota |
| County | Union |
| Location | Jefferson Interchange |
| Carries | 330th Street |
| Crosses | I029 |
| Coordinates | 42.60514, -96.57603 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 5 (Fair) |
| Substructure | 5 (Fair) |
| 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 | 34.4 ft (10.5 m) |
| Deck Area | 1168.7 sq m |
| Main Spans | 4 |
| Year Built | 1961 |
Traffic
| Avg Daily Traffic | 488 (2023) |
| Truck Traffic | 9% |
| Lanes On Bridge | 2 |
| Lanes Under Bridge | 4 |
Inspection & Ownership
| Last Inspection | 624 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000064115330 |