US 18 over Willow Creek
Fair Condition74 years old14,400 vehicles/day
Location
| State | Iowa |
| County | Cerro Gordo |
| Location | 0.3 Mi. W Of Jct. I-35 |
| Carries | US 18 |
| Crosses | Willow Creek |
| Coordinates | 43.14519, -93.36180 |
Condition Ratings
| Overall Condition | Fair |
| Channel/Waterway | 7 (Good) |
| Culvert | 6 (Satisfactory) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Culvert |
| Total Length | 35.1 ft (10.7 m) |
| Max Span | 17.1 ft (5.2 m) |
| Deck Area | 234.3 sq m |
| Main Spans | 2 |
| Year Built | 1952 (reconstructed 1969) |
Traffic
| Avg Daily Traffic | 14,400 (2022) |
| Truck Traffic | 5% |
| Lanes On Bridge | 6 |
Inspection & Ownership
| Last Inspection | 424 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000018740 |