Lake Arrowhead
Key Takeaway
Lake Arrowhead is classified as significant hazard in California. It was completed in 1922 and is 104 years old. Its primary use is water supply. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 190 ft (taller than 94% in CA) |
| Dam Length | 720 ft |
| Dam Type | Earth |
| Max Storage | 48.0K acre-ft |
| Surface Area | 780 acres |
| Drainage Area | 7 sq mi |
| Year Completed | 1922 (104 years old) |
| NID ID | CA00759 |
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
Arrowhead Lake Association
Private
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High Hazard 550 ftFrequently Asked Questions
What is the hazard classification of Lake Arrowhead?
Lake Arrowhead 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 Lake Arrowhead?
Lake Arrowhead is owned by Arrowhead Lake Association (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Lake Arrowhead built?
Lake Arrowhead was completed in 1922, making it 104 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 Arrowhead?
Lake Arrowhead serves the following purposes: Water Supply, Irrigation, Recreation, Hydroelectric. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Lake Arrowhead?
Lake Arrowhead has a dam height of 190 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 Arrowhead last inspected?
Lake Arrowhead was last inspected on June 2, 2023. Inspection dates indicate when a formal review occurred, not the results of that inspection.