Csah 70 over Dunka River
GoodSt. Louis County, Minnesota · 5.1 MI E of JCT Csah 112 · Structure no. 69K99
- Built
- 2022
- 3 years old
- Condition
- Good
- inspected August 2023
- Type
- Culvert
- Concrete
- Length
- 41 ft
- 2 main spans
- Daily traffic
- 1,100
- 2019 count
- Owner
- County
- County Highway Agency
About this bridge
Csah 70 over Dunka River is a concrete culvert carrying Csah 70 over Dunka River in St. Louis 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 1,100 vehicles a day, projected to reach 1,143 by 2039. The structure is 41 ft (12.4 m) long. If it were closed, the detour would be 49.7 mi (80 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 |
|---|---|---|
| Channel and channel protection | 8 Very Good | No problems noted. |
| Culvert | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Csah 70 over Dunka River built?
It was built in 2022, making it 3 years old in 2025.
What condition is Csah 70 over Dunka 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 August 2023.
How much traffic does Csah 70 over Dunka River carry?
About 1,100 vehicles per day (2019 count).
How long is Csah 70 over Dunka River?
The structure is 41 ft (12.4 m) long with a longest span of 18 ft (5.6 m).
Who owns Csah 70 over Dunka River?
It is owned by the County Highway Agency.