330th Street over Middle Silver Creek
GoodPottawattamie County, Iowa · 075410302 · Structure no. 000000000286031
- Built
- 2002
- 23 years old
- Condition
- Good
- inspected July 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 155 ft
- 3 main spans
- Daily traffic
- 110
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
330th Street over Middle Silver Creek is a prestressed concrete stringer/multi-beam or girder carrying 330th Street over Middle Silver Creek in Pottawattamie County, Iowa. It was built in 2002, so it is 23 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 110 vehicles a day, projected to reach 110 by 2043. The structure is 155 ft (47.2 m) long and 27 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 | 8 Very Good | No problems noted. |
| Substructure | 8 Very Good | No problems noted. |
| 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 330th Street over Middle Silver Creek built?
It was built in 2002, making it 23 years old in 2025.
What condition is 330th Street over Middle 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 July 2023.
How much traffic does 330th Street over Middle Silver Creek carry?
About 110 vehicles per day (2022 count).
How long is 330th Street over Middle Silver Creek?
The structure is 155 ft (47.2 m) long with a longest span of 55 ft (16.8 m) and a deck 27 ft wide.
Who owns 330th Street over Middle Silver Creek?
It is owned by the County Highway Agency.