I-35 over Drainage Ditch
GoodFranklin County, Iowa · 1.0 Mi. N of SR C13 · Structure no. 000000000602520
- Built
- 1972
- 53 years old
- Condition
- Good
- inspected November 2024
- Type
- Culvert
- Concrete Continuous
- Length
- 21 ft
- 2 main spans
- Daily traffic
- 17,300
- 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 Franklin County, Iowa. It was built in 1972, so it is 53 years old, older than the Iowa average of 45.5 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 17,300 vehicles a day, roughly 30% of them trucks, projected to reach 17,300 by 2044. The structure is 21 ft (6.4 m) long. If it were closed, the detour would be 3.1 mi (5 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Channel and channel protection | 7 Good | Some minor problems. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I-35 over Drainage Ditch built?
It was built in 1972, making it 53 years old in 2025.
What condition is I-35 over Drainage Ditch in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in November 2024.
How much traffic does I-35 over Drainage Ditch carry?
About 17,300 vehicles per day (2022 count), of which roughly 30% are trucks.
How long is I-35 over Drainage Ditch?
The structure is 21 ft (6.4 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.