310th ST over Unnamed Creek
GoodIowa County, Iowa · 078122101 · Structure no. 000000000188801
- Built
- 2013
- 12 years old
- Condition
- Good
- inspected February 2023
- Type
- Slab
- Concrete
- Length
- 24 ft
- 1 main span
- Daily traffic
- 71
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
310th ST over Unnamed Creek is a concrete slab carrying 310th ST over Unnamed Creek in Iowa County, Iowa. It was built in 2013, so it is 12 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 71 vehicles a day, projected to reach 71 by 2043. The structure is 24 ft (7.3 m) long and 26 ft wide. If it were closed, the detour would be 3.1 mi (5 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 |
|---|---|---|
| Deck | 8 Very Good | No problems noted. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 310th ST over Unnamed Creek built?
It was built in 2013, making it 12 years old in 2025.
What condition is 310th ST over Unnamed 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 February 2023.
How much traffic does 310th ST over Unnamed Creek carry?
About 71 vehicles per day (2022 count).
How long is 310th ST over Unnamed Creek?
The structure is 24 ft (7.3 m) long with a longest span of 22 ft (6.7 m) and a deck 26 ft wide.
Who owns 310th ST over Unnamed Creek?
It is owned by the County Highway Agency.