US 18 over Drainage Ditch
Fair Condition61 years old4,270 vehicles/day
Location
| State | Iowa |
| County | Clay |
| Location | At The Jct Of SR N14 |
| Carries | US 18 |
| Crosses | Drainage Ditch |
| Coordinates | 43.12659, -94.97268 |
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 | 28.9 ft (8.8 m) |
| Max Span | 14.1 ft (4.3 m) |
| Deck Area | 117.9 sq m |
| Main Spans | 2 |
| Year Built | 1965 (reconstructed 1994) |
Traffic
| Avg Daily Traffic | 4,270 (2022) |
| Truck Traffic | 16% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | December 2023 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000020380 |