Harmon RD over Spring Creek
Fair Condition78 years old39 vehicles/day
Location
| State | Iowa |
| County | Black Hawk |
| Location | 87-11-27-01-10 |
| Carries | Harmon RD |
| Crosses | Spring Creek |
| Coordinates | 42.32622, -92.11417 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 5 (Fair) |
| Superstructure | 5 (Fair) |
| Substructure | 5 (Fair) |
| Channel/Waterway | 5 (Fair) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 162.1 ft (49.4 m) |
| Max Span | 32.2 ft (9.8 m) |
| Deck Width | 19.4 ft (5.9 m) |
| Deck Area | 291.5 sq m |
| Main Spans | 5 |
| Year Built | 1948 (reconstructed 2009) |
Traffic
| Avg Daily Traffic | 39 (2022) |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | October 2024 |
| Inspection Frequency | Every 12 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000073890 |