CO RD W64 over Big Slough Creek
FairWashington County, Iowa · 074060308 · Structure no. 000000000051491
- Built
- 1982
- 43 years old
- Condition
- Fair
- inspected February 2023
- Type
- Culvert
- Concrete Continuous
- Length
- 40 ft
- 3 main spans
- Daily traffic
- 220
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
CO RD W64 over Big Slough Creek is a concrete continuous culvert carrying CO RD W64 over Big Slough Creek in Washington County, Iowa. It was built in 1982, so it is 43 years old, younger 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 220 vehicles a day, roughly 10% of them trucks, projected to reach 220 by 2043. The structure is 40 ft (12.2 m) long. If it were closed, the detour would be 14.3 mi (23 km).
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 |
|---|---|---|
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
| Culvert | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was CO RD W64 over Big Slough Creek built?
It was built in 1982, making it 43 years old in 2025.
What condition is CO RD W64 over Big Slough 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 February 2023.
How much traffic does CO RD W64 over Big Slough Creek carry?
About 220 vehicles per day (2022 count), of which roughly 10% are trucks.
How long is CO RD W64 over Big Slough Creek?
The structure is 40 ft (12.2 m) long with a longest span of 13 ft (4 m).
Who owns CO RD W64 over Big Slough Creek?
It is owned by the County Highway Agency.