780 170th ST over Br Boone River #8
Fair Condition48 years old15 vehicles/day
Location
| State | Iowa |
| County | Hancock |
| Location | 095253101 |
| Carries | 780 170th ST |
| Crosses | Br Boone River #8 |
| Coordinates | 43.00958, -93.83633 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 7 (Good) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Slab |
| Total Length | 66.9 ft (20.4 m) |
| Max Span | 25.9 ft (7.9 m) |
| Deck Width | 25.9 ft (7.9 m) |
| Deck Area | 161.2 sq m |
| Main Spans | 3 |
| Year Built | 1978 |
Traffic
| Avg Daily Traffic | 15 (2022) |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 324 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000173481 |