NB US 65 over Drainage Ditch
GoodPolk County, Iowa · 4.4 Miles N of N JCT I-80 · Structure no. 000000000040581
- Built
- 1979
- 46 years old
- Condition
- Good
- inspected April 2023
- Type
- Culvert
- Concrete Continuous
- Length
- 25 ft
- 2 main spans
- Daily traffic
- 8,200
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
NB US 65 over Drainage Ditch is a concrete continuous culvert carrying NB US 65 over Drainage Ditch in Polk County, Iowa. It was built in 1979, so it is 46 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 8,200 vehicles a day, roughly 16% of them trucks, projected to reach 8,200 by 2043. The structure is 25 ft (7.7 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 NB US 65 over Drainage Ditch built?
It was built in 1979, making it 46 years old in 2025.
What condition is NB US 65 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 April 2023.
How much traffic does NB US 65 over Drainage Ditch carry?
About 8,200 vehicles per day (2022 count), of which roughly 16% are trucks.
How long is NB US 65 over Drainage Ditch?
The structure is 25 ft (7.7 m) long with a longest span of 10 ft (3 m).
Who owns NB US 65 over Drainage Ditch?
It is owned by the State Highway Agency.