I090 W over 300 AVE
Fair Condition56 years old3,787 vehicles/day
Location
| State | South Dakota |
| County | Lyman |
| Location | 7.5 E US 83 N Interchange |
| Carries | I090 W |
| Crosses | 300 AVE |
| Coordinates | 43.90384, -100.16582 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 7 (Good) |
| Substructure | 6 (Satisfactory) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 158.1 ft (48.2 m) |
| Max Span | 60.0 ft (18.3 m) |
| Deck Width | 40.7 ft (12.4 m) |
| Deck Area | 597.7 sq m |
| Main Spans | 3 |
| Year Built | 1970 |
Traffic
| Avg Daily Traffic | 3,787 (2024) |
| Truck Traffic | 26% |
| Lanes On Bridge | 2 |
| Lanes Under Bridge | 2 |
Inspection & Ownership
| Last Inspection | 123 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000043100201 |