US 18 over Lost Island Outlet
Fair Condition95 years old4,270 vehicles/day
Location
| State | Iowa |
| County | Clay |
| Location | 1.0 Mi. E Of Jct. SR M54 |
| Carries | US 18 |
| Crosses | Lost Island Outlet |
| Coordinates | 43.12682, -95.01426 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 5 (Fair) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 7 — Countermeasures installed |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Slab |
| Total Length | 105.0 ft (32 m) |
| Max Span | 40.0 ft (12.2 m) |
| Deck Width | 36.1 ft (11 m) |
| Deck Area | 352 sq m |
| Main Spans | 3 |
| Year Built | 1931 (reconstructed 1965) |
Traffic
| Avg Daily Traffic | 4,270 (2022) |
| Truck Traffic | 16% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | October 2024 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000020360 |