500th ST over Silver Creek
GoodShelby County, Iowa · 500th West of Hazel · Structure no. 000000000304721
- Built
- 2017
- 8 years old
- Condition
- Good
- inspected March 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 78 ft
- 3 main spans
- Daily traffic
- 15
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
500th ST over Silver Creek is a steel stringer/multi-beam or girder carrying 500th ST over Silver Creek in Shelby County, Iowa. It was built in 2017, so it is 8 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 15 vehicles a day, projected to reach 15 by 2043. The structure is 78 ft (23.8 m) long and 24 ft wide. If it were closed, the detour would be 44.7 mi (72 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 |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 500th ST over Silver Creek built?
It was built in 2017, making it 8 years old in 2025.
What condition is 500th ST over Silver Creek 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 500th ST over Silver Creek carry?
About 15 vehicles per day (2022 count).
How long is 500th ST over Silver Creek?
The structure is 78 ft (23.8 m) long with a longest span of 42 ft (12.8 m) and a deck 24 ft wide.
Who owns 500th ST over Silver Creek?
It is owned by the County Highway Agency.