Lake Osakis 1
Key Takeaway
Lake Osakis 1 is classified as low hazard in Minnesota. It was completed in 1938 and is 88 years old. Its primary use is recreation.
Physical Details
| Dam Height | 4 ft (taller than 0.3% in MN) |
| Dam Length | 24 ft |
| Dam Type | Gravity |
| Normal Storage | 8.8K acre-ft |
| Surface Area | 6,637 acres |
| Drainage Area | 425 sq mi |
| Year Completed | 1938 (88 years old) |
| NID ID | MN01337 |
Safety Information
No probable loss of human life and low economic/environmental losses expected.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
MNDNR-EWR
State Government
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Lake Osakis 1?
Lake Osakis 1 is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Lake Osakis 1?
Lake Osakis 1 is owned by MNDNR-EWR (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Lake Osakis 1 built?
Lake Osakis 1 was completed in 1938, making it 88 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.
What is the primary purpose of Lake Osakis 1?
Lake Osakis 1 serves the following purposes: Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Lake Osakis 1?
Lake Osakis 1 has a dam height of 4 ft. Dam height is measured from the natural streambed at the downstream toe to the top of the dam, and may differ from the visible height.
When was Lake Osakis 1 last inspected?
Lake Osakis 1 was last inspected on October 8, 2012. Inspection dates indicate when a formal review occurred, not the results of that inspection.