US 18 over Drainage Ditch
GoodFloyd County, Iowa · 0.3 Mi. W of Jct. SR T24 · Structure no. 000000000607350
- Built
- 1998
- 27 years old
- Condition
- Good
- inspected September 2024
- Type
- Culvert
- Concrete Continuous
- Length
- 26 ft
- 2 main spans
- Daily traffic
- 10,700
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
US 18 over Drainage Ditch is a concrete continuous culvert carrying US 18 over Drainage Ditch in Floyd County, Iowa. It was built in 1998, so it is 27 years old, younger 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 10,700 vehicles a day, roughly 25% of them trucks, projected to reach 10,700 by 2044. The structure is 26 ft (7.9 m) long. If it were closed, the detour would be 1.2 mi (2 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 US 18 over Drainage Ditch built?
It was built in 1998, making it 27 years old in 2025.
What condition is US 18 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 September 2024.
How much traffic does US 18 over Drainage Ditch carry?
About 10,700 vehicles per day (2022 count), of which roughly 25% are trucks.
How long is US 18 over Drainage Ditch?
The structure is 26 ft (7.9 m) long with a longest span of 12 ft (3.7 m).
Who owns US 18 over Drainage Ditch?
It is owned by the State Highway Agency.