US 20 over Drainage Ditch
Good Condition46 years old10,100 vehicles/day
Location
| State | Iowa |
| County | Buchanan |
| Location | 4.6 Mi. W Of W Jct. Ia150 |
| Carries | US 20 |
| Crosses | Drainage Ditch |
| Coordinates | 42.45010, -91.97983 |
Condition Ratings
| Overall Condition | Good |
| Channel/Waterway | 7 (Good) |
| Culvert | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Culvert |
| Total Length | 21.0 ft (6.4 m) |
| Max Span | 9.8 ft (3 m) |
| Deck Area | 156.2 sq m |
| Main Spans | 2 |
| Year Built | 1980 |
Traffic
| Avg Daily Traffic | 10,100 (2022) |
| Truck Traffic | 22% |
| Lanes On Bridge | 4 |
Inspection & Ownership
| Last Inspection | 224 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000604910 |