I 35 over Drainage Ditch
FairHamilton County, Iowa · 0.8 Mile S of JCT Ia 175 · Structure no. 000000000604870
- Built
- 1966
- 59 years old
- Condition
- Fair
- inspected April 2024
- Type
- Culvert
- Concrete Continuous
- Length
- 24 ft
- 2 main spans
- Daily traffic
- 27,200
- 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 Hamilton County, Iowa. It was built in 1966, 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 27,200 vehicles a day, roughly 25% of them trucks, projected to reach 27,200 by 2043. The structure is 24 ft (7.3 m) long. If it were closed, the detour would be 6.8 mi (11 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 35 over Drainage Ditch built?
It was built in 1966, making it 59 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 April 2024.
How much traffic does I 35 over Drainage Ditch carry?
About 27,200 vehicles per day (2023 count), of which roughly 25% are trucks.
How long is I 35 over Drainage Ditch?
The structure is 24 ft (7.3 m) long with a longest span of 11 ft (3.4 m).
Who owns I 35 over Drainage Ditch?
It is owned by the State Highway Agency.