470th Street over Second Creek
GoodPottawattamie County, Iowa · 076392402 · Structure no. 000000000287731
- Built
- 1985
- 40 years old
- Condition
- Good
- inspected April 2024
- Type
- Slab
- Concrete Continuous
- Length
- 100 ft
- 3 main spans
- Daily traffic
- 20
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
470th Street over Second Creek is a concrete continuous slab carrying 470th Street over Second Creek in Pottawattamie County, Iowa. It was built in 1985, so it is 40 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 20 vehicles a day, projected to reach 20 by 2043. The structure is 100 ft (30.5 m) long and 26 ft wide. 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 |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 470th Street over Second Creek built?
It was built in 1985, making it 40 years old in 2025.
What condition is 470th Street over Second 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 April 2024.
How much traffic does 470th Street over Second Creek carry?
About 20 vehicles per day (2022 count).
How long is 470th Street over Second Creek?
The structure is 100 ft (30.5 m) long with a longest span of 39 ft (11.9 m) and a deck 26 ft wide.
Who owns 470th Street over Second Creek?
It is owned by the County Highway Agency.