FM 640 120th ST over Mid Br Boone River
Fair Condition38 years old518 vehicles/day
Location
| State | Iowa |
| County | Hancock |
| Location | 094262501 |
| Carries | FM 640 120th ST |
| Crosses | Mid Br Boone River |
| Coordinates | 42.93732, -93.86335 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Slab |
| Total Length | 79.1 ft (24.1 m) |
| Max Span | 28.9 ft (8.8 m) |
| Deck Width | 32.2 ft (9.8 m) |
| Deck Area | 236.2 sq m |
| Main Spans | 3 |
| Year Built | 1988 |
Traffic
| Avg Daily Traffic | 518 (2022) |
| Truck Traffic | 16% |
| 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 | 000000000172981 |