430th Street over Stream
PoorPottawattamie County, Iowa · 076391704 · Structure no. 000000000287580
- Built
- 1940
- 85 years old, rebuilt 1990
- Condition
- Poor
- inspected May 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 55 ft
- 1 main span
- Daily traffic
- 26
- 2021 count
- Owner
- County
- County Highway Agency
About this bridge
430th Street over Stream is a steel stringer/multi-beam or girder carrying 430th Street over Stream in Pottawattamie County, Iowa. It was built in 1940 and reconstructed in 1990, so it is 85 years old, older than the Iowa average of 45.5 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 26 vehicles a day, projected to reach 26 by 2043. The structure is 55 ft (16.8 m) long and 17 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 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Channel and channel protection | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 430th Street over Stream built?
It was built in 1940, making it 85 years old in 2025. It was reconstructed in 1990.
What condition is 430th Street over Stream in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in May 2023.
How much traffic does 430th Street over Stream carry?
About 26 vehicles per day (2021 count).
How long is 430th Street over Stream?
The structure is 55 ft (16.8 m) long with a longest span of 35 ft (10.7 m) and a deck 17 ft wide.
Who owns 430th Street over Stream?
It is owned by the County Highway Agency.