I-235 over Drainage Ditch
FairPolk County, Iowa · 0.4 Mile East of Iowa 28 · Structure no. 000000000606140
- Built
- 1966
- 59 years old, rebuilt 2004
- Condition
- Fair
- inspected December 2024
- Type
- Culvert
- Concrete Continuous
- Length
- 47 ft
- 3 main spans
- Daily traffic
- 118,600
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
I-235 over Drainage Ditch is a concrete continuous culvert carrying I-235 over Drainage Ditch in Polk County, Iowa. It was built in 1966 and reconstructed in 2004, so it is 59 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 118,600 vehicles a day, roughly 6% of them trucks, projected to reach 118,600 by 2044. The structure is 47 ft (14.3 m) long. If it were closed, the detour would be 1.2 mi (2 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 | 7 Good | Some minor problems. |
| Culvert | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I-235 over Drainage Ditch built?
It was built in 1966, making it 59 years old in 2025. It was reconstructed in 2004.
What condition is I-235 over Drainage Ditch 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 December 2024.
How much traffic does I-235 over Drainage Ditch carry?
About 118,600 vehicles per day (2022 count), of which roughly 6% are trucks.
How long is I-235 over Drainage Ditch?
The structure is 47 ft (14.3 m) long with a longest span of 10 ft (3 m).
Who owns I-235 over Drainage Ditch?
It is owned by the State Highway Agency.