US 30 WB to I35 NB over Drainage Ditch
FairStory County, Iowa · At Junction US 30 · Structure no. 000000000605765
- Built
- 1964
- 61 years old
- Condition
- Fair
- inspected October 2023
- Type
- Culvert
- Concrete Continuous
- Length
- 22 ft
- 2 main spans
- Daily traffic
- 1,780
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
US 30 WB to I35 NB over Drainage Ditch is a concrete continuous culvert carrying US 30 WB to I35 NB over Drainage Ditch in Story County, Iowa. It was built in 1964, so it is 61 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 1,780 vehicles a day, roughly 22% of them trucks, projected to reach 1,780 by 2043. The structure is 22 ft (6.7 m) long. If it were closed, the detour would be 1.2 mi (2 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 US 30 WB to I35 NB over Drainage Ditch built?
It was built in 1964, making it 61 years old in 2025.
What condition is US 30 WB to I35 NB 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 October 2023.
How much traffic does US 30 WB to I35 NB over Drainage Ditch carry?
About 1,780 vehicles per day (2022 count), of which roughly 22% are trucks.
How long is US 30 WB to I35 NB over Drainage Ditch?
The structure is 22 ft (6.7 m) long with a longest span of 10 ft (3 m).
Who owns US 30 WB to I35 NB over Drainage Ditch?
It is owned by the State Highway Agency.