Csah 18 over Buffalo River
GoodClay County, Minnesota · 1.6 MI E of JCT Csah 11 · Structure no. 14537
- Built
- 2002
- 23 years old
- Condition
- Good
- inspected September 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 390 ft
- 5 main spans
- Daily traffic
- 1,233
- 2021 count
- Owner
- County
- County Highway Agency
About this bridge
Csah 18 over Buffalo River is a prestressed concrete stringer/multi-beam or girder carrying Csah 18 over Buffalo River in Clay County, Minnesota. It was built in 2002, so it is 23 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 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 1,233 vehicles a day, roughly 7% of them trucks, projected to reach 1,200 by 2041. The structure is 390 ft (119 m) long and 47 ft wide. If it were closed, the detour would be 3.7 mi (6 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 | 7 Good | Some minor problems. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 8 Very Good | No problems noted. |
| 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 18 over Buffalo River built?
It was built in 2002, making it 23 years old in 2025.
What condition is Csah 18 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 September 2023.
How much traffic does Csah 18 over Buffalo River carry?
About 1,233 vehicles per day (2021 count), of which roughly 7% are trucks.
How long is Csah 18 over Buffalo River?
The structure is 390 ft (119 m) long with a longest span of 77 ft (23.5 m) and a deck 47 ft wide.
Who owns Csah 18 over Buffalo River?
It is owned by the County Highway Agency.