Csah 31 over Buffalo River
GoodClay County, Minnesota · 1.6 MI S of JCT TH 10 · Structure no. 14518
- Built
- 1984
- 41 years old
- Condition
- Good
- inspected October 2023
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 98 ft
- 3 main spans
- Daily traffic
- 970
- 2017 count
- Owner
- County
- County Highway Agency
About this bridge
Csah 31 over Buffalo River is a prestressed concrete tee beam carrying Csah 31 over Buffalo River in Clay 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 970 vehicles a day, projected to reach 970 by 2039. The structure is 98 ft (30 m) long and 45 ft wide. If it were closed, the detour would be 8.7 mi (14 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 | 7 Good | Some minor problems. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Csah 31 over Buffalo River built?
It was built in 1984, making it 41 years old in 2025.
What condition is Csah 31 over Buffalo 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 2023.
How much traffic does Csah 31 over Buffalo River carry?
About 970 vehicles per day (2017 count).
How long is Csah 31 over Buffalo River?
The structure is 98 ft (30 m) long with a longest span of 36 ft (11.1 m) and a deck 45 ft wide.
Who owns Csah 31 over Buffalo River?
It is owned by the County Highway Agency.