I-35 over Drainage Ditch
FairCerro Gordo County, Iowa · 1.6 Mi. N of Jct. SR C13 · Structure no. 000000000602230
- Built
- 1971
- 54 years old
- Condition
- Fair
- inspected August 2024
- Type
- Culvert
- Concrete Continuous
- Length
- 22 ft
- 2 main spans
- Daily traffic
- 17,600
- 2023 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 Cerro Gordo County, Iowa. It was built in 1971, so it is 54 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 17,600 vehicles a day, roughly 30% of them trucks, projected to reach 17,600 by 2043. The structure is 22 ft (6.7 m) long. If it were closed, the detour would be 3.1 mi (5 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 | 9 Excellent | No problems noted. |
| Culvert | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I-35 over Drainage Ditch built?
It was built in 1971, making it 54 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 August 2024.
How much traffic does I-35 over Drainage Ditch carry?
About 17,600 vehicles per day (2023 count), of which roughly 30% are trucks.
How long is I-35 over Drainage Ditch?
The structure is 22 ft (6.7 m) long with a longest span of 10 ft (3 m).
Who owns I-35 over Drainage Ditch?
It is owned by the State Highway Agency.