310th Street over Three Mile Creek
GoodAdair County, Iowa · 074312401 · Structure no. 000000000365120
- Built
- 2006
- 19 years old
- Condition
- Good
- inspected April 2023
- Type
- Culvert
- Concrete Continuous
- Length
- 22 ft
- 2 main spans
- Daily traffic
- 518
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
310th Street over Three Mile Creek is a concrete continuous culvert carrying 310th Street over Three Mile Creek in Adair 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 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 518 vehicles a day, roughly 16% of them trucks, projected to reach 518 by 2043. The structure is 22 ft (6.7 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 | 7 Good | Some minor problems. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 310th Street over Three Mile Creek built?
It was built in 2006, making it 19 years old in 2025.
What condition is 310th Street over Three 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 April 2023.
How much traffic does 310th Street over Three Mile Creek carry?
About 518 vehicles per day (2022 count), of which roughly 16% are trucks.
How long is 310th Street over Three Mile Creek?
The structure is 22 ft (6.7 m) long with a longest span of 10 ft (3 m).
Who owns 310th Street over Three Mile Creek?
It is owned by the County Highway Agency.