Ia 175 over Koker Creek
GoodWoodbury County, Iowa · 1.1 MI E of SR L37 · Structure no. 000000000053391
- Built
- 1986
- 39 years old
- Condition
- Good
- inspected November 2023
- Type
- Culvert
- Concrete Continuous
- Length
- 25 ft
- 2 main spans
- Daily traffic
- 930
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
Ia 175 over Koker Creek is a concrete continuous culvert carrying Ia 175 over Koker Creek in Woodbury County, Iowa. It was built in 1986, so it is 39 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 930 vehicles a day, roughly 15% of them trucks, projected to reach 930 by 2042. The structure is 25 ft (7.6 m) long. If it were closed, the detour would be 5 mi (8 km).
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 Ia 175 over Koker Creek built?
It was built in 1986, making it 39 years old in 2025.
What condition is Ia 175 over Koker 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 November 2023.
How much traffic does Ia 175 over Koker Creek carry?
About 930 vehicles per day (2022 count), of which roughly 15% are trucks.
How long is Ia 175 over Koker Creek?
The structure is 25 ft (7.6 m) long with a longest span of 12 ft (3.7 m).
Who owns Ia 175 over Koker Creek?
It is owned by the State Highway Agency.