185th Avenue over Prairie Creek
FairClinton County, Iowa · 083E20404 · Structure no. 000000000124641
- Built
- 1973
- 52 years old
- Condition
- Fair
- inspected January 2025
- Type
- Slab
- Concrete Continuous
- Length
- 90 ft
- 3 main spans
- Daily traffic
- 840
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
185th Avenue over Prairie Creek is a concrete continuous slab carrying 185th Avenue over Prairie Creek in Clinton County, Iowa. It was built in 1973, so it is 52 years old, older than the Iowa average of 45.5 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 840 vehicles a day, roughly 12% of them trucks, projected to reach 840 by 2045. The structure is 90 ft (27.4 m) long and 32 ft wide.
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 185th Avenue over Prairie Creek built?
It was built in 1973, making it 52 years old in 2025.
What condition is 185th Avenue over Prairie Creek in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in January 2025.
How much traffic does 185th Avenue over Prairie Creek carry?
About 840 vehicles per day (2022 count), of which roughly 12% are trucks.
How long is 185th Avenue over Prairie Creek?
The structure is 90 ft (27.4 m) long with a longest span of 34 ft (10.4 m) and a deck 32 ft wide.
Who owns 185th Avenue over Prairie Creek?
It is owned by the County Highway Agency.