Sd240 over I090
Fair Condition58 years old630 vehicles/day
Location
| State | South Dakota |
| County | Pennington |
| Location | West Wall Interchange |
| Carries | Sd240 |
| Crosses | I090 |
| Coordinates | 43.99456, -102.25808 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 410.8 ft (125.2 m) |
| Max Span | 112.5 ft (34.3 m) |
| Deck Width | 46.6 ft (14.2 m) |
| Deck Area | 1777.8 sq m |
| Main Spans | 4 |
| Year Built | 1968 |
Traffic
| Avg Daily Traffic | 630 (2024) |
| Truck Traffic | 3% |
| Lanes On Bridge | 2 |
| Lanes Under Bridge | 4 |
Inspection & Ownership
| Last Inspection | October 2023 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000052900360 |