Csah 51 over Prairie River
GoodSt. Louis County, Minnesota · 0.4 MI S of JCT CR 816 · Structure no. 69A81
- Built
- 2022
- 3 years old
- Condition
- Good
- inspected June 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 74 ft
- 1 main span
- Daily traffic
- 120
- 2019 count
- Owner
- County
- County Highway Agency
About this bridge
Csah 51 over Prairie River is a prestressed concrete stringer/multi-beam or girder carrying Csah 51 over Prairie 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 120 vehicles a day, projected to reach 143 by 2043. The structure is 74 ft (22.6 m) long and 31 ft wide. If it were closed, the detour would be 3.1 mi (5 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 | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Csah 51 over Prairie River built?
It was built in 2022, making it 3 years old in 2025.
What condition is Csah 51 over Prairie 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 June 2024.
How much traffic does Csah 51 over Prairie River carry?
About 120 vehicles per day (2019 count).
How long is Csah 51 over Prairie River?
The structure is 74 ft (22.6 m) long with a longest span of 72 ft (21.9 m) and a deck 31 ft wide.
Who owns Csah 51 over Prairie River?
It is owned by the County Highway Agency.