470th Street over Ia 60
GoodSioux County, Iowa · 2.0 Mi. S of Ia. 10 · Structure no. 000000000608850
- Built
- 2003
- 22 years old
- Condition
- Good
- inspected January 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 320 ft
- 4 main spans
- Daily traffic
- 300
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
470th Street over Ia 60 is a prestressed concrete stringer/multi-beam or girder carrying 470th Street over Ia 60 in Sioux County, Iowa. It was built in 2003, so it is 22 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 300 vehicles a day, roughly 9% of them trucks, projected to reach 300 by 2044. The structure is 320 ft (97.5 m) long and 43 ft wide. 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 |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 470th Street over Ia 60 built?
It was built in 2003, making it 22 years old in 2025.
What condition is 470th Street over Ia 60 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 January 2024.
How much traffic does 470th Street over Ia 60 carry?
About 300 vehicles per day (2022 count), of which roughly 9% are trucks.
How long is 470th Street over Ia 60?
The structure is 320 ft (97.5 m) long with a longest span of 116 ft (35.4 m) and a deck 43 ft wide.
Who owns 470th Street over Ia 60?
It is owned by the State Highway Agency.