Hawthorne Lake Dam
Key Takeaway
Hawthorne Lake Dam is classified as low hazard in New Jersey. It was completed in 1900 and is 126 years old. Its primary use is recreation.
Physical Details
| Dam Height | 8 ft (taller than 5.1% in NJ) |
| Dam Length | 165 ft |
| Dam Type | Earth |
| Max Storage | 167 acre-ft |
| Normal Storage | 149 acre-ft |
| Surface Area | 35 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 15 cfs |
| Year Completed | 1900 (126 years old) |
| NID ID | NJ01036 |
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
Hawthorne Park Club
Private
Nearby Dams
Heaters Pond Dam
Sussex, NJ
High Hazard 8 ftRock Island Lake Dam
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Significant Hazard 19 ftMorris Lake Dam
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High Hazard 19 ftGlen Lake Dam
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High Hazard 12 ftSunset Lake Dam
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Low Hazard 13 ftCamp Ryker Lake Dam
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Significant Hazard 10 ftLake Saginaw Dam
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Low Hazard 16 ftBlue Heron Lake Dam
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Low Hazard 7 ftFrequently Asked Questions
What is the hazard classification of Hawthorne Lake Dam?
Hawthorne Lake Dam 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 Hawthorne Lake Dam?
Hawthorne Lake Dam is owned by Hawthorne Park Club (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Hawthorne Lake Dam built?
Hawthorne Lake Dam was completed in 1900, making it 126 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 Hawthorne Lake Dam?
Hawthorne Lake Dam 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 Hawthorne Lake Dam?
Hawthorne Lake Dam has a dam height of 8 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 Hawthorne Lake Dam last inspected?
Hawthorne Lake Dam was last inspected on October 9, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.