L20 Loess Hills over Drainage Ditch
Good Condition35 years old1,065 vehicles/day
Location
| State | Iowa |
| County | Harrison |
| Location | 078442204 |
| Carries | L20 Loess Hills |
| Crosses | Drainage Ditch |
| Coordinates | 41.54263, -95.88799 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Slab |
| Total Length | 74.1 ft (22.6 m) |
| Max Span | 27.9 ft (8.5 m) |
| Deck Width | 39.0 ft (11.9 m) |
| Deck Area | 268.9 sq m |
| Main Spans | 3 |
| Year Built | 1991 |
Traffic
| Avg Daily Traffic | 1,065 (2022) |
| Truck Traffic | 11% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 124 |
| Inspection Frequency | Every 48 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000027811 |