I090 W over Cooper School RD
Good Condition55 years old3,720 vehicles/day
Location
| State | South Dakota |
| County | Lyman |
| Location | 1 W Oacoma Interch |
| Carries | I090 W |
| Crosses | Cooper School RD |
| Coordinates | 43.80665, -99.41225 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Slab |
| Total Length | 119.1 ft (36.3 m) |
| Max Span | 43.0 ft (13.1 m) |
| Deck Width | 40.7 ft (12.4 m) |
| Deck Area | 450.1 sq m |
| Main Spans | 3 |
| Year Built | 1971 |
Traffic
| Avg Daily Traffic | 3,720 (2024) |
| Truck Traffic | 29% |
| Lanes On Bridge | 2 |
| Lanes Under Bridge | 2 |
Inspection & Ownership
| Last Inspection | 724 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000043475267 |