I-35 over Drainage Ditch
GoodFranklin County, Iowa · 2.1 Mi. N of Jct. Ia 3 · Structure no. 000000000602430
- Built
- 1973
- 52 years old
- Condition
- Good
- inspected January 2023
- Type
- Culvert
- Concrete Continuous
- Length
- 25 ft
- 2 main spans
- Daily traffic
- 17,000
- 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 Franklin County, Iowa. It was built in 1973, so it is 52 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 17,000 vehicles a day, roughly 31% of them trucks, projected to reach 17,000 by 2043. The structure is 25 ft (7.6 m) long. If it were closed, the detour would be 14.3 mi (23 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 1973, making it 52 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 January 2023.
How much traffic does I-35 over Drainage Ditch carry?
About 17,000 vehicles per day (2023 count), of which roughly 31% 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.