Sd258 over I090
Good Condition61 years old798 vehicles/day
Location
| State | South Dakota |
| County | Aurora |
| Location | Plankinton Interchange |
| Carries | Sd258 |
| Crosses | I090 |
| Coordinates | 43.70504, -98.48594 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 266.4 ft (81.2 m) |
| Max Span | 75.1 ft (22.9 m) |
| Deck Width | 32.8 ft (10 m) |
| Deck Area | 812 sq m |
| Main Spans | 4 |
| Year Built | 1965 |
Traffic
| Avg Daily Traffic | 798 (2024) |
| Truck Traffic | 5% |
| Lanes On Bridge | 2 |
| Lanes Under Bridge | 4 |
Inspection & Ownership
| Last Inspection | 325 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 00000000215C158 |