Ia 1 over Middle Walnut Creek
Fair Condition57 years old2,560 vehicles/day
Location
| State | Iowa |
| County | Jefferson |
| Location | 3.2 Mi. S Of S Jct. Ia 78 |
| Carries | Ia 1 |
| Crosses | Middle Walnut Creek |
| Coordinates | 41.13189, -91.96605 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Slab |
| Total Length | 123.0 ft (37.5 m) |
| Max Span | 46.9 ft (14.3 m) |
| Deck Width | 47.2 ft (14.4 m) |
| Deck Area | 540 sq m |
| Main Spans | 3 |
| Year Built | 1969 |
Traffic
| Avg Daily Traffic | 2,560 (2022) |
| Truck Traffic | 7% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | December 2023 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000031410 |