US 20 over Drainage Ditch 69
Good Condition15 years old7,900 vehicles/day
Location
| State | Iowa |
| County | Webster |
| Location | 0.4 Mi. W Of SR D36 |
| Carries | US 20 |
| Crosses | Drainage Ditch 69 |
| Coordinates | 42.45143, -94.29573 |
Condition Ratings
| Overall Condition | Good |
| Channel/Waterway | 8 (Very Good) |
| Culvert | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Culvert |
| Total Length | 25.9 ft (7.9 m) |
| Max Span | 12.1 ft (3.7 m) |
| Deck Area | 94.8 sq m |
| Main Spans | 2 |
| Year Built | 2011 |
Traffic
| Avg Daily Traffic | 7,900 (2022) |
| Truck Traffic | 28% |
| Lanes On Bridge | 4 |
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 | 000000000609745 |