L20 Loess Hills over Natural Creek
Fair Condition100 years old767 vehicles/day
Location
| State | Iowa |
| County | Harrison |
| Location | 079442408 |
| Carries | L20 Loess Hills |
| Crosses | Natural Creek |
| Coordinates | 41.64278, -95.91383 |
Condition Ratings
| Overall Condition | Fair |
| Channel/Waterway | 5 (Fair) |
| Culvert | 5 (Fair) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete |
| Design | Culvert |
| Total Length | 21.0 ft (6.4 m) |
| Max Span | 20.0 ft (6.1 m) |
| Deck Area | 66.6 sq m |
| Main Spans | 1 |
| Year Built | 1926 |
Traffic
| Avg Daily Traffic | 767 (2022) |
| Truck Traffic | 8% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | December 2024 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is possibly eligible (requires evaluation) |
| Structure Number | 000000000027870 |