230th AVE over Negro Creek
Good Condition39 years old360 vehicles/day
Location
| State | Iowa |
| County | Clinton |
| Location | 082e32902 |
| Carries | 230th AVE |
| Crosses | Negro Creek |
| Coordinates | 41.87556, -90.64556 |
Condition Ratings
| Overall Condition | Good |
| Deck | 8 (Very Good) |
| Superstructure | 8 (Very Good) |
| Substructure | 8 (Very Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Slab |
| Total Length | 78.1 ft (23.8 m) |
| Max Span | 27.9 ft (8.5 m) |
| Deck Width | 32.2 ft (9.8 m) |
| Deck Area | 233.2 sq m |
| Main Spans | 3 |
| Year Built | 1987 |
Traffic
| Avg Daily Traffic | 360 (2022) |
| Truck Traffic | 10% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 424 |
| Inspection Frequency | Every 48 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is possibly eligible (requires evaluation) |
| Structure Number | 000000000123621 |