300 ST over I029
Good Condition2 years old115 vehicles/day
Location
| State | South Dakota |
| County | Union |
| Location | 3 S Sd 46 Interch |
| Carries | 300 ST |
| Crosses | I029 |
| Coordinates | 43.04015, -96.79516 |
Condition Ratings
| Overall Condition | Good |
| Deck | 8 (Very Good) |
| Superstructure | 8 (Very Good) |
| Substructure | 8 (Very Good) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 244.1 ft (74.4 m) |
| Max Span | 121.1 ft (36.9 m) |
| Deck Width | 34.8 ft (10.6 m) |
| Deck Area | 788.6 sq m |
| Main Spans | 2 |
| Year Built | 2024 |
Traffic
| Avg Daily Traffic | 115 (2023) |
| Truck Traffic | 2% |
| Lanes On Bridge | 2 |
| Lanes Under Bridge | 4 |
Inspection & Ownership
| Last Inspection | November 2024 |
| Inspection Frequency | Every 48 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000064006030 |