The GRADE(4MI-LK) over Cascade River
FairCook County, Minnesota · 3.0 MI E of JCT Csah 4 · Structure no. 090902000001015
- Built
- 1955
- 70 years old
- Condition
- Fair
- inspected September 2023
- Type
- Culvert
- Steel
- Length
- 39 ft
- 2 main spans
- Daily traffic
- 10
- 1973 count
- Owner
- Federal
- U.S. Forest Service
About this bridge
The GRADE(4MI-LK) over Cascade River is a steel culvert carrying The GRADE(4MI-LK) over Cascade River in Cook County, Minnesota. It was built in 1955, so it is 70 years old, older than the Minnesota average of 38.5 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 10 vehicles a day, projected to reach 15 by 2045. The structure is 39 ft (11.9 m) long. If it were closed, the detour would be 39.8 mi (64 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Channel and channel protection | 8 Very Good | No problems noted. |
| Culvert | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was The GRADE(4MI-LK) over Cascade River built?
It was built in 1955, making it 70 years old in 2025.
What condition is The GRADE(4MI-LK) over Cascade River in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in September 2023.
How much traffic does The GRADE(4MI-LK) over Cascade River carry?
About 10 vehicles per day (1973 count).
How long is The GRADE(4MI-LK) over Cascade River?
The structure is 39 ft (11.9 m) long with a longest span of 17 ft (5.1 m).
Who owns The GRADE(4MI-LK) over Cascade River?
It is owned by the U.S. Forest Service.