170th Ave. over Drainage Ditch 12
Good Condition64 years old35 vehicles/day
Location
| State | Iowa |
| County | Clinton |
| Location | 082e20802 |
| Carries | 170th Ave. |
| Crosses | Drainage Ditch 12 |
| Coordinates | 41.92081, -90.76189 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Slab |
| Total Length | 77.1 ft (23.5 m) |
| Max Span | 28.9 ft (8.8 m) |
| Deck Width | 26.2 ft (8 m) |
| Deck Area | 188 sq m |
| Main Spans | 3 |
| Year Built | 1962 |
Traffic
| Avg Daily Traffic | 35 (2022) |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 124 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000123150 |