520th AVE over Walnut Creek
Fair Condition126 years old80 vehicles/day
Location
| State | Iowa |
| County | Story |
| Location | 083242802 |
| Carries | 520th AVE |
| Crosses | Walnut Creek |
| Coordinates | 41.96566, -93.65844 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 33.1 ft (10.1 m) |
| Max Span | 30.8 ft (9.4 m) |
| Deck Width | 24.9 ft (7.6 m) |
| Deck Area | 76.8 sq m |
| Main Spans | 1 |
| Year Built | 1900 (reconstructed 1949) |
Traffic
| Avg Daily Traffic | 80 (2022) |
| Truck Traffic | 15% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | December 2022 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000314940 |