Csah 1 over Otter Tail River
FairOtter Tail County, Minnesota · 1.2 MI S of JCT Csah 18 · Structure no. 56523
- Built
- 1981
- 44 years old
- Condition
- Fair
- inspected October 2024
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 101 ft
- 3 main spans
- Daily traffic
- 3,350
- 2020 count
- Owner
- County
- County Highway Agency
About this bridge
Csah 1 over Otter Tail River is a prestressed concrete tee beam carrying Csah 1 over Otter Tail River in Otter Tail County, Minnesota. It was built in 1981, so it is 44 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.
It carries about 3,350 vehicles a day, projected to reach 3,750 by 2040. The structure is 101 ft (30.9 m) long and 56 ft wide. If it were closed, the detour would be 8.1 mi (13 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 1 over Otter Tail River built?
It was built in 1981, making it 44 years old in 2025.
What condition is Csah 1 over Otter Tail 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 October 2024.
How much traffic does Csah 1 over Otter Tail River carry?
About 3,350 vehicles per day (2020 count).
How long is Csah 1 over Otter Tail River?
The structure is 101 ft (30.9 m) long with a longest span of 33 ft (10.2 m) and a deck 56 ft wide.
Who owns Csah 1 over Otter Tail River?
It is owned by the County Highway Agency.