I090 W over Lone Rock Ck
Fair Condition67 years old7,955 vehicles/day
Location
| State | South Dakota |
| County | Minnehaha |
| Location | 1.2 W Minnesota Line |
| Carries | I090 W |
| Crosses | Lone Rock Ck |
| Coordinates | 43.60901, -96.47553 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 5 (Fair) |
| Scour Critical | 3 — Scour critical |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Slab |
| Total Length | 91.9 ft (28 m) |
| Max Span | 23.3 ft (7.1 m) |
| Deck Width | 44.3 ft (13.5 m) |
| Deck Area | 378 sq m |
| Main Spans | 4 |
| Year Built | 1959 |
Traffic
| Avg Daily Traffic | 7,955 (2024) |
| Truck Traffic | 20% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 924 |
| Inspection Frequency | Every 12 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000050328165 |