Mount Hope Lake Dam
Key Takeaway
Mount Hope Lake Dam is classified as high hazard in New Jersey. It was completed in 1944 and is 82 years old. Its primary use is recreation. 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 | 18 ft (taller than 66.3% in NJ) |
| Dam Length | 1,252 ft |
| Dam Type | Earth |
| Max Storage | 2.0K acre-ft |
| Normal Storage | 633 acre-ft |
| Surface Area | 100 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 858 cfs |
| Year Completed | 1944 (82 years old) |
| NID ID | NJ00464 |
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
Tilcon NY, Inc.
Private
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Low Hazard 15 ftFrequently Asked Questions
What is the hazard classification of Mount Hope Lake Dam?
Mount Hope Lake Dam 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 Mount Hope Lake Dam?
Mount Hope Lake Dam is owned by Tilcon NY, Inc. (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Mount Hope Lake Dam built?
Mount Hope Lake Dam was completed in 1944, making it 82 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 Mount Hope Lake Dam?
Mount Hope Lake Dam serves the following purposes: Recreation, Hydroelectric. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Mount Hope Lake Dam?
Mount Hope Lake Dam has a dam height of 18 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 Mount Hope Lake Dam last inspected?
Mount Hope Lake Dam was last inspected on August 27, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.