US 20 over Stream
GoodGrundy County, Iowa · 2.7 Miles W of JCT SR T55 · Structure no. 000000000607700
- Built
- 1999
- 26 years old
- Condition
- Good
- inspected February 2024
- Type
- Culvert
- Concrete Continuous
- Length
- 31 ft
- 2 main spans
- Daily traffic
- 13,500
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
US 20 over Stream is a concrete continuous culvert carrying US 20 over Stream in Grundy County, Iowa. It was built in 1999, so it is 26 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 13,500 vehicles a day, roughly 21% of them trucks, projected to reach 13,500 by 2044. The structure is 31 ft (9.4 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 over Stream built?
It was built in 1999, making it 26 years old in 2025.
What condition is US 20 over Stream 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 February 2024.
How much traffic does US 20 over Stream carry?
About 13,500 vehicles per day (2022 count), of which roughly 21% are trucks.
How long is US 20 over Stream?
The structure is 31 ft (9.4 m) long with a longest span of 14 ft (4.3 m).
Who owns US 20 over Stream?
It is owned by the State Highway Agency.