I-35 over Drainage Ditch
FairWarren County, Iowa · 5.7 Mi. S of Jct. Ia 92 · Structure no. 000000000051270
- Built
- 1958
- 67 years old
- Condition
- Fair
- inspected March 2024
- Type
- Culvert
- Concrete Continuous
- Length
- 25 ft
- 2 main spans
- Daily traffic
- 21,000
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
I-35 over Drainage Ditch is a concrete continuous culvert carrying I-35 over Drainage Ditch in Warren County, Iowa. It was built in 1958, so it is 67 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 5 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 21,000 vehicles a day, roughly 29% of them trucks, projected to reach 21,000 by 2044. The structure is 25 ft (7.6 m) long. If it were closed, the detour would be 6.2 mi (10 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I-35 over Drainage Ditch built?
It was built in 1958, making it 67 years old in 2025.
What condition is I-35 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 March 2024.
How much traffic does I-35 over Drainage Ditch carry?
About 21,000 vehicles per day (2022 count), of which roughly 29% are trucks.
How long is I-35 over Drainage Ditch?
The structure is 25 ft (7.6 m) long with a longest span of 12 ft (3.7 m).
Who owns I-35 over Drainage Ditch?
It is owned by the State Highway Agency.