FM 570 120th ST over Boone River
Fair Condition47 years old439 vehicles/day
Location
| State | Iowa |
| County | Hancock |
| Location | 094262601 |
| Carries | FM 570 120th ST |
| Crosses | Boone River |
| Coordinates | 42.93720, -93.87734 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Slab |
| Total Length | 116.1 ft (35.4 m) |
| Max Span | 44.0 ft (13.4 m) |
| Deck Width | 32.2 ft (9.8 m) |
| Deck Area | 346.9 sq m |
| Main Spans | 3 |
| Year Built | 1979 |
Traffic
| Avg Daily Traffic | 439 (2022) |
| Truck Traffic | 20% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 423 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000172991 |