US 18 over Unnamed Creek
Fair Condition38 years old4,730 vehicles/day
Location
| State | Iowa |
| County | Clayton |
| Location | 0.1 Mi. E Of Jct. SR B45 |
| Carries | US 18 |
| Crosses | Unnamed Creek |
| Coordinates | 43.04394, -91.18547 |
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 | 44.0 ft (13.4 m) |
| Max Span | 12.1 ft (3.7 m) |
| Deck Area | 187.6 sq m |
| Main Spans | 2 |
| Year Built | 1988 |
Traffic
| Avg Daily Traffic | 4,730 (2022) |
| Truck Traffic | 13% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | November 2023 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000605900 |