New Lake Arrowhead
Key Takeaway
New Lake Arrowhead is classified as high hazard in California. It was completed in 1976 and is 50 years old. Its primary use is water supply. High hazard means loss of life is likely if the dam fails — it does not indicate the dam's current condition. Learn more.
Physical Details
| Dam Height | 225 ft (taller than 95.7% in CA) |
| Dam Length | 1,300 ft |
| Dam Type | Earth |
| Max Storage | 2.0K acre-ft |
| Surface Area | 31 acres |
| Drainage Area | 0 sq mi |
| Year Completed | 1976 (50 years old) |
| NID ID | CA01124 |
Safety Information
Loss of human life is likely if the dam fails.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
County of San Bernardino
Local Government
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High Hazard 550 ftFrequently Asked Questions
What is the hazard classification of New Lake Arrowhead?
New Lake Arrowhead is classified as High Hazard. Loss of human life is likely if the dam fails. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates New Lake Arrowhead?
New Lake Arrowhead is owned by County of San Bernardino (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was New Lake Arrowhead built?
New Lake Arrowhead was completed in 1976, making it 50 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 New Lake Arrowhead?
New Lake Arrowhead serves the following purposes: Water Supply, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is New Lake Arrowhead?
New Lake Arrowhead has a dam height of 225 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 New Lake Arrowhead last inspected?
New Lake Arrowhead was last inspected on May 25, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.