Csah 18 over Willow River
GoodAitkin County, Minnesota · 3.3 MI W of JCT Csah 10 · Structure no. 01535
- Built
- 2022
- 3 years old
- Condition
- Good
- inspected October 2024
- Type
- Slab
- Concrete Continuous
- Length
- 151 ft
- 3 main spans
- Daily traffic
- 17
- 2021 count
- Owner
- County
- County Highway Agency
About this bridge
Csah 18 over Willow River is a concrete continuous slab carrying Csah 18 over Willow River in Aitkin County, Minnesota. It was built in 2022, so it is 3 years old, younger than the Minnesota average of 38.5 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 17 vehicles a day, projected to reach 49 by 2041. The structure is 151 ft (46 m) long and 35 ft wide. If it were closed, the detour would be 24.9 mi (40 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 | 9 Excellent | No problems noted. |
| Substructure | 9 Excellent | 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 Csah 18 over Willow River built?
It was built in 2022, making it 3 years old in 2025.
What condition is Csah 18 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 October 2024.
How much traffic does Csah 18 over Willow River carry?
About 17 vehicles per day (2021 count).
How long is Csah 18 over Willow River?
The structure is 151 ft (46 m) long with a longest span of 58 ft (17.7 m) and a deck 35 ft wide.
Who owns Csah 18 over Willow River?
It is owned by the County Highway Agency.