US 30 over Drainage Ditch
GoodCedar County, Iowa · 2.0 Mi. E of Jct. SR X64 · Structure no. 000000000018280
- Built
- 1955
- 70 years old
- Condition
- Good
- inspected July 2024
- Type
- Culvert
- Concrete Continuous
- Length
- 27 ft
- 2 main spans
- Daily traffic
- 2,790
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
US 30 over Drainage Ditch is a concrete continuous culvert carrying US 30 over Drainage Ditch in Cedar County, Iowa. It was built in 1955, so it is 70 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 2,790 vehicles a day, roughly 20% of them trucks, projected to reach 2,790 by 2044. The structure is 27 ft (8.2 m) long. If it were closed, the detour would be 5 mi (8 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 US 30 over Drainage Ditch built?
It was built in 1955, making it 70 years old in 2025.
What condition is US 30 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 July 2024.
How much traffic does US 30 over Drainage Ditch carry?
About 2,790 vehicles per day (2022 count), of which roughly 20% are trucks.
How long is US 30 over Drainage Ditch?
The structure is 27 ft (8.2 m) long with a longest span of 12 ft (3.7 m).
Who owns US 30 over Drainage Ditch?
It is owned by the State Highway Agency.