230th Street over Dry Mill Creek
GoodClayton County, Iowa · 093040801 · Structure no. 000000000119591
- Built
- 1993
- 32 years old
- Condition
- Good
- inspected October 2024
- Type
- Slab
- Concrete Continuous
- Length
- 113 ft
- 3 main spans
- Daily traffic
- 44
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
230th Street over Dry Mill Creek is a concrete continuous slab carrying 230th Street over Dry Mill Creek in Clayton County, Iowa. It was built in 1993, so it is 32 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 44 vehicles a day, projected to reach 44 by 2044. The structure is 113 ft (34.4 m) long and 26 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| 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 230th Street over Dry Mill Creek built?
It was built in 1993, making it 32 years old in 2025.
What condition is 230th Street over Dry Mill 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 October 2024.
How much traffic does 230th Street over Dry Mill Creek carry?
About 44 vehicles per day (2022 count).
How long is 230th Street over Dry Mill Creek?
The structure is 113 ft (34.4 m) long with a longest span of 49 ft (14.9 m) and a deck 26 ft wide.
Who owns 230th Street over Dry Mill Creek?
It is owned by the County Highway Agency.