W 11th ST over Silver Creek
GoodClinton County, Iowa · 000000000 · Structure no. 000000000020791
- Built
- 1990
- 35 years old
- Condition
- Good
- inspected November 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 151 ft
- 3 main spans
- Daily traffic
- 8,900
- 2022 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
W 11th ST over Silver Creek is a prestressed concrete stringer/multi-beam or girder carrying W 11th ST over Silver Creek in Clinton County, Iowa. It was built in 1990, so it is 35 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 8,900 vehicles a day, projected to reach 8,900 by 2044. The structure is 151 ft (46 m) long and 65 ft wide. If it were closed, the detour would be 21.1 mi (34 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was W 11th ST over Silver Creek built?
It was built in 1990, making it 35 years old in 2025.
What condition is W 11th ST over 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 November 2024.
How much traffic does W 11th ST over Silver Creek carry?
About 8,900 vehicles per day (2022 count).
How long is W 11th ST over Silver Creek?
The structure is 151 ft (46 m) long with a longest span of 55 ft (16.8 m) and a deck 65 ft wide.
Who owns W 11th ST over Silver Creek?
It is owned by the City or Municipal Highway Agency.