9th Avenue over Smith Creek
PoorPosted for loadWashington County, Iowa · 077092400 · Structure no. 000000000051870
- Built
- 1928
- 97 years old, rebuilt 1964
- Condition
- Poor
- inspected February 2024
- Type
- Slab
- Concrete Continuous
- Length
- 73 ft
- 2 main spans
- Daily traffic
- 920
- 2022 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
9th Avenue over Smith Creek is a concrete continuous slab carrying 9th Avenue over Smith Creek in Washington County, Iowa. It was built in 1928 and reconstructed in 1964, so it is 97 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 3 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. Its operating status is: posted for load restriction.
It carries about 920 vehicles a day, roughly 12% of them trucks, projected to reach 920 by 2044. The structure is 73 ft (22.3 m) long and 36 ft wide. If it were closed, the detour would be 21.7 mi (35 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 | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| Superstructure | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| Substructure | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| 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 9th Avenue over Smith Creek built?
It was built in 1928, making it 97 years old in 2025. It was reconstructed in 1964.
What condition is 9th Avenue over Smith Creek 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 February 2024.
How much traffic does 9th Avenue over Smith Creek carry?
About 920 vehicles per day (2022 count), of which roughly 12% are trucks.
How long is 9th Avenue over Smith Creek?
The structure is 73 ft (22.3 m) long with a longest span of 37 ft (11.3 m) and a deck 36 ft wide.
Who owns 9th Avenue over Smith Creek?
It is owned by the City or Municipal Highway Agency.