WB I-80 over 470th Street
FairPottawattamie County, Iowa · 2.5 Mi. E of Jct. 59 · Structure no. 000000000045600
- Built
- 1965
- 60 years old
- Condition
- Fair
- inspected July 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 127 ft
- 3 main spans
- Daily traffic
- 11,900
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
WB I-80 over 470th Street is a prestressed concrete stringer/multi-beam or girder carrying WB I-80 over 470th Street in Pottawattamie County, Iowa. It was built in 1965, so it is 60 years old, older than the Iowa average of 45.5 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 11,900 vehicles a day, roughly 41% of them trucks, projected to reach 11,900 by 2044. The structure is 127 ft (38.7 m) long and 42 ft wide. If it were closed, the detour would be 1.2 mi (2 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was WB I-80 over 470th Street built?
It was built in 1965, making it 60 years old in 2025.
What condition is WB I-80 over 470th Street in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in July 2024.
How much traffic does WB I-80 over 470th Street carry?
About 11,900 vehicles per day (2022 count), of which roughly 41% are trucks.
How long is WB I-80 over 470th Street?
The structure is 127 ft (38.7 m) long with a longest span of 52 ft (15.9 m) and a deck 42 ft wide.
Who owns WB I-80 over 470th Street?
It is owned by the State Highway Agency.