400th ST over Willow Creek
GoodClay County, Iowa · 95381701 · Structure no. 000000000116421
- Built
- 2011
- 14 years old
- Condition
- Good
- inspected December 2020
- Type
- Culvert
- Concrete
- Length
- 24 ft
- 2 main spans
- Daily traffic
- 11
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
400th ST over Willow Creek is a concrete culvert carrying 400th ST over Willow Creek in Clay County, Iowa. It was built in 2011, so it is 14 years old, younger than the Iowa average of 45.5 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 11 vehicles a day, projected to reach 11 by 2040. The structure is 24 ft (7.3 m) long.
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 400th ST over Willow Creek built?
It was built in 2011, making it 14 years old in 2025.
What condition is 400th ST over Willow Creek in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in December 2020.
How much traffic does 400th ST over Willow Creek carry?
About 11 vehicles per day (2022 count).
How long is 400th ST over Willow Creek?
The structure is 24 ft (7.3 m) long with a longest span of 12 ft (3.7 m).
Who owns 400th ST over Willow Creek?
It is owned by the County Highway Agency.