Calkins AVE over Knapp CR
Good Condition18 years old49 vehicles/day
Location
| State | Iowa |
| County | Johnson |
| Location | 081080402 |
| Carries | Calkins AVE |
| Crosses | Knapp CR |
| Coordinates | 41.85987, -91.79251 |
Condition Ratings
| Overall Condition | Good |
| Channel/Waterway | 6 (Satisfactory) |
| Culvert | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Culvert |
| Total Length | 21.0 ft (6.4 m) |
| Max Span | 9.8 ft (3 m) |
| Deck Area | 62.7 sq m |
| Main Spans | 2 |
| Year Built | 2008 |
Traffic
| Avg Daily Traffic | 49 (2022) |
| Truck Traffic | 35% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 421 |
| Inspection Frequency | Every 48 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000205721 |