Csah 21 over Kettle River
FairPosted for loadCarlton County, Minnesota · 3.6 MI N of JCT Csah 4 · Structure no. 09509
- Built
- 1984
- 41 years old
- Condition
- Fair
- inspected December 2024
- Type
- Slab
- Wood or Timber
- Length
- 77 ft
- 3 main spans
- Daily traffic
- 45
- 2020 count
- Owner
- County
- County Highway Agency
About this bridge
Csah 21 over Kettle River is a wood or timber slab carrying Csah 21 over Kettle River in Carlton County, Minnesota. It was built in 1984, so it is 41 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 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.
It carries about 45 vehicles a day, projected to reach 45 by 2040. The structure is 77 ft (23.5 m) long and 34 ft wide. If it were closed, the detour would be 5 mi (8 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 |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Csah 21 over Kettle River built?
It was built in 1984, making it 41 years old in 2025.
What condition is Csah 21 over Kettle 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 December 2024.
How much traffic does Csah 21 over Kettle River carry?
About 45 vehicles per day (2020 count).
How long is Csah 21 over Kettle River?
The structure is 77 ft (23.5 m) long with a longest span of 26 ft (7.8 m) and a deck 34 ft wide.
Who owns Csah 21 over Kettle River?
It is owned by the County Highway Agency.