Ia 1 over Walnut Creek
FairWashington County, Iowa · 4.0 Mi. N of JCT Ia 78 · Structure no. 000000000051611
- Built
- 2006
- 19 years old
- Condition
- Fair
- inspected April 2024
- Type
- Culvert
- Concrete Continuous
- Length
- 39 ft
- 3 main spans
- Daily traffic
- 2,340
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
Ia 1 over Walnut Creek is a concrete continuous culvert carrying Ia 1 over Walnut Creek in Washington County, Iowa. It was built in 2006, so it is 19 years old, younger than the Iowa average of 45.5 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 2,340 vehicles a day, roughly 10% of them trucks, projected to reach 2,340 by 2044. The structure is 39 ft (11.9 m) long. If it were closed, the detour would be 18 mi (29 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
| Culvert | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Ia 1 over Walnut Creek built?
It was built in 2006, making it 19 years old in 2025.
What condition is Ia 1 over Walnut Creek in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in April 2024.
How much traffic does Ia 1 over Walnut Creek carry?
About 2,340 vehicles per day (2022 count), of which roughly 10% are trucks.
How long is Ia 1 over Walnut Creek?
The structure is 39 ft (11.9 m) long with a longest span of 12 ft (3.7 m).
Who owns Ia 1 over Walnut Creek?
It is owned by the State Highway Agency.