180th ST over Nine Mile Creek
GoodAdair County, Iowa · 1.1 MI W of N72 on 180th · Structure no. 000000000057221
- Built
- 2014
- 11 years old
- Condition
- Good
- inspected May 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 45 ft
- 1 main span
- Daily traffic
- 21
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
180th ST over Nine Mile Creek is a steel stringer/multi-beam or girder carrying 180th ST over Nine Mile Creek in Adair County, Iowa. It was built in 2014, so it is 11 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 21 vehicles a day, roughly 14% of them trucks, projected to reach 21 by 2043. The structure is 45 ft (13.7 m) long and 25 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 | 8 Very Good | No problems noted. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 180th ST over Nine Mile Creek built?
It was built in 2014, making it 11 years old in 2025.
What condition is 180th ST over Nine Mile 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 May 2024.
How much traffic does 180th ST over Nine Mile Creek carry?
About 21 vehicles per day (2022 count), of which roughly 14% are trucks.
How long is 180th ST over Nine Mile Creek?
The structure is 45 ft (13.7 m) long with a longest span of 44 ft (13.4 m) and a deck 25 ft wide.
Who owns 180th ST over Nine Mile Creek?
It is owned by the County Highway Agency.