US 20 US 52 over Drainage Ditch
GoodDubuque County, Iowa · 0.3 Mi. W Jct. SR Y21 · Structure no. 000000000023810
- Built
- 1960
- 65 years old, rebuilt 1985
- Condition
- Good
- inspected November 2023
- Type
- Culvert
- Concrete Continuous
- Length
- 27 ft
- 3 main spans
- Daily traffic
- 12,500
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
US 20 US 52 over Drainage Ditch is a concrete continuous culvert carrying US 20 US 52 over Drainage Ditch in Dubuque County, Iowa. It was built in 1960 and reconstructed in 1985, so it is 65 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 12,500 vehicles a day, roughly 14% of them trucks, projected to reach 12,500 by 2042. The structure is 27 ft (8.2 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 20 US 52 over Drainage Ditch built?
It was built in 1960, making it 65 years old in 2025. It was reconstructed in 1985.
What condition is US 20 US 52 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 November 2023.
How much traffic does US 20 US 52 over Drainage Ditch carry?
About 12,500 vehicles per day (2022 count), of which roughly 14% are trucks.
How long is US 20 US 52 over Drainage Ditch?
The structure is 27 ft (8.2 m) long with a longest span of 8 ft (2.4 m).
Who owns US 20 US 52 over Drainage Ditch?
It is owned by the State Highway Agency.