Csah 77 over Leaf River
FairOtter Tail County, Minnesota · 0.5 MI SE of JCT TH 10 · Structure no. 56514
- Built
- 1968
- 57 years old
- Condition
- Fair
- inspected October 2024
- Type
- Channel Beam
- Prestressed Concrete
- Length
- 69 ft
- 3 main spans
- Daily traffic
- 315
- 2015 count
- Owner
- County
- County Highway Agency
About this bridge
Csah 77 over Leaf River is a prestressed concrete channel beam carrying Csah 77 over Leaf River in Otter Tail County, Minnesota. It was built in 1968, so it is 57 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 5 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 315 vehicles a day, projected to reach 315 by 2039. The structure is 69 ft (21 m) long and 37 ft wide. If it were closed, the detour would be 5 mi (8 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Csah 77 over Leaf River built?
It was built in 1968, making it 57 years old in 2025.
What condition is Csah 77 over Leaf 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 77 over Leaf River carry?
About 315 vehicles per day (2015 count).
How long is Csah 77 over Leaf River?
The structure is 69 ft (21 m) long with a longest span of 31 ft (9.4 m) and a deck 37 ft wide.
Who owns Csah 77 over Leaf River?
It is owned by the County Highway Agency.