Splitrock Lake
Key Takeaway
Splitrock Lake is classified as significant hazard in Minnesota. It was completed in 1937 and is 89 years old. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 35 ft (taller than 89.8% in MN) |
| Dam Length | 300 ft |
| Dam Type | Rockfill |
| Max Storage | 540 acre-ft |
| Normal Storage | 360 acre-ft |
| Surface Area | 80 acres |
| Drainage Area | 31 sq mi |
| Max Discharge | 3,000 cfs |
| Year Completed | 1937 (89 years old) |
| Year Modified | 1993 |
| NID ID | MN00100 |
Safety Information
No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
MNDNR-Parks
State Government
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Splitrock Lake?
Splitrock Lake is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Splitrock Lake?
Splitrock Lake is owned by MNDNR-Parks (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Splitrock Lake built?
Splitrock Lake was completed in 1937, making it 89 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 Splitrock Lake?
Splitrock Lake 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 Splitrock Lake?
Splitrock Lake has a dam height of 35 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 Splitrock Lake last inspected?
Splitrock Lake was last inspected on September 8, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.