Ia 31 over Four Mile Creek
GoodCherokee County, Iowa · 1.1 Mi. S of Jct. SR L51 · Structure no. 000000000019511
- Built
- 2015
- 10 years old
- Condition
- Good
- inspected January 2023
- Type
- Culvert
- Concrete Continuous
- Length
- 29 ft
- 2 main spans
- Daily traffic
- 1,350
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
Ia 31 over Four Mile Creek is a concrete continuous culvert carrying Ia 31 over Four Mile Creek in Cherokee County, Iowa. It was built in 2015, so it is 10 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 1,350 vehicles a day, roughly 20% of them trucks, projected to reach 1,350 by 2042. The structure is 29 ft (8.8 m) long. If it were closed, the detour would be 3.7 mi (6 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 | 8 Very Good | No problems noted. |
| Culvert | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Ia 31 over Four Mile Creek built?
It was built in 2015, making it 10 years old in 2025.
What condition is Ia 31 over Four Mile 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 January 2023.
How much traffic does Ia 31 over Four Mile Creek carry?
About 1,350 vehicles per day (2022 count), of which roughly 20% are trucks.
How long is Ia 31 over Four Mile Creek?
The structure is 29 ft (8.8 m) long with a longest span of 14 ft (4.3 m).
Who owns Ia 31 over Four Mile Creek?
It is owned by the State Highway Agency.