170th St. over Brophy Creek
Good Condition55 years old70 vehicles/day
Location
| State | Iowa |
| County | Clinton |
| Location | 082e50901 |
| Carries | 170th St. |
| Crosses | Brophy Creek |
| Coordinates | 41.93177, -90.38536 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Slab |
| Total Length | 78.1 ft (23.8 m) |
| Max Span | 28.9 ft (8.8 m) |
| Deck Width | 32.2 ft (9.8 m) |
| Deck Area | 233.2 sq m |
| Main Spans | 3 |
| Year Built | 1971 |
Traffic
| Avg Daily Traffic | 70 (2022) |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 524 |
| Inspection Frequency | Every 48 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000123991 |