140th ST NW over Knapp Creek
Fair Condition39 years old50 vehicles/day
Location
| State | Iowa |
| County | Johnson |
| Location | 081081601 |
| Carries | 140th ST NW |
| Crosses | Knapp Creek |
| Coordinates | 41.83299, -91.78925 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 7 (Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Slab |
| Total Length | 128.0 ft (39 m) |
| Max Span | 48.9 ft (14.9 m) |
| Deck Width | 24.0 ft (7.3 m) |
| Deck Area | 284.7 sq m |
| Main Spans | 3 |
| Year Built | 1987 |
Traffic
| Avg Daily Traffic | 50 (2021) |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 423 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000205821 |