B58 over Small Stream
GoodSioux County, Iowa · 094471801 · Structure no. 000000000309332
- Built
- 1996
- 29 years old
- Condition
- Good
- inspected March 2023
- Type
- Culvert
- Steel
- Length
- 56 ft
- 3 main spans
- Daily traffic
- 60
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
B58 over Small Stream is a steel culvert carrying B58 over Small Stream in Sioux County, Iowa. It was built in 1996, so it is 29 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 60 vehicles a day, projected to reach 60 by 2043. The structure is 56 ft (17.1 m) long. If it were closed, the detour would be 1.9 mi (3 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 | 8 Very Good | No problems noted. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was B58 over Small Stream built?
It was built in 1996, making it 29 years old in 2025.
What condition is B58 over Small 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 March 2023.
How much traffic does B58 over Small Stream carry?
About 60 vehicles per day (2022 count).
How long is B58 over Small Stream?
The structure is 56 ft (17.1 m) long with a longest span of 19 ft (5.8 m).
Who owns B58 over Small Stream?
It is owned by the County Highway Agency.