US 20 US 52 over Drainage Ditch
Good Condition66 years old12,500 vehicles/day
Location
| State | Iowa |
| County | Dubuque |
| Location | 0.3 Mi. W Jct. SR Y21 |
| Carries | US 20 US 52 |
| Crosses | Drainage Ditch |
| Coordinates | 42.44080, -90.85617 |
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 | 26.9 ft (8.2 m) |
| Max Span | 7.9 ft (2.4 m) |
| Deck Area | 200.1 sq m |
| Main Spans | 3 |
| Year Built | 1960 (reconstructed 1985) |
Traffic
| Avg Daily Traffic | 12,500 (2022) |
| Truck Traffic | 14% |
| Lanes On Bridge | 4 |
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 | 000000000023810 |