Pleasant Lake Dam
Key Takeaway
Pleasant Lake Dam is classified as low hazard in New Hampshire. It was completed in 1921 and is 105 years old. Its primary use is recreation.
Physical Details
| Dam Height | 7 ft (taller than 1.4% in NH) |
| Dam Length | 225 ft |
| Dam Type | Earth |
| Max Storage | 2.0K acre-ft |
| Normal Storage | 552 acre-ft |
| Surface Area | 478 acres |
| Drainage Area | 4 sq mi |
| Max Discharge | 94 cfs |
| Year Completed | 1921 (105 years old) |
| Year Modified | 2010 |
| NID ID | NH00179 |
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
NH DES WATER DIVISION
State Government
Nearby Dams
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Low Hazard 13 ftMeadow Lake Dam
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Low Hazard 14 ftThurston Pond Dam
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Unknown 9 ftBerry Pond Dam
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High Hazard 18 ftDole Marsh Dam
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Low Hazard 8 ftFrequently Asked Questions
What is the hazard classification of Pleasant Lake Dam?
Pleasant 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 Pleasant Lake Dam?
Pleasant Lake Dam is owned by NH DES WATER DIVISION (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Pleasant Lake Dam built?
Pleasant Lake Dam was completed in 1921, making it 105 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 Pleasant Lake Dam?
Pleasant 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 Pleasant Lake Dam?
Pleasant Lake Dam has a dam height of 7 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 Pleasant Lake Dam last inspected?
Pleasant Lake Dam was last inspected on November 29, 2017. Inspection dates indicate when a formal review occurred, not the results of that inspection.