280th ST over Willow River
GoodHarrison County, Iowa · 078440401 · Structure no. 000000000177651
- Built
- 2021
- 4 years old
- Condition
- Good
- inspected December 2023
- Type
- Slab
- Concrete Continuous
- Length
- 110 ft
- 3 main spans
- Daily traffic
- 60
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
280th ST over Willow River is a concrete continuous slab carrying 280th ST over Willow River in Harrison County, Iowa. It was built in 2021, so it is 4 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 60 vehicles a day, projected to reach 60 by 2043. The structure is 110 ft (33.5 m) long and 27 ft wide. If it were closed, the detour would be 6.2 mi (10 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 280th ST over Willow River built?
It was built in 2021, making it 4 years old in 2025.
What condition is 280th ST over Willow River 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 December 2023.
How much traffic does 280th ST over Willow River carry?
About 60 vehicles per day (2022 count).
How long is 280th ST over Willow River?
The structure is 110 ft (33.5 m) long with a longest span of 43 ft (13.1 m) and a deck 27 ft wide.
Who owns 280th ST over Willow River?
It is owned by the County Highway Agency.