B45 over Unamed Creek
Good Condition38 years old10 vehicles/day
Location
| State | Iowa |
| County | Clayton |
| Location | At Jct. US 18 & SR B45 |
| Carries | B45 |
| Crosses | Unamed Creek |
| Coordinates | 43.04465, -91.18622 |
Condition Ratings
| Overall Condition | Good |
| Channel/Waterway | 9 (Excellent) |
| Culvert | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Culvert |
| Total Length | 26.9 ft (8.2 m) |
| Max Span | 12.1 ft (3.7 m) |
| Deck Area | 90.2 sq m |
| Main Spans | 2 |
| Year Built | 1988 |
Traffic
| Avg Daily Traffic | 10 (2022) |
| Truck Traffic | 3% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 423 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000609270 |