Dorrs Pond Dam
Key Takeaway
Dorrs Pond Dam is classified as high hazard in New Hampshire. It was completed in 1934 and is 92 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 | 9 ft (taller than 10.9% in NH) |
| Dam Length | 125 ft |
| Dam Type | Earth |
| Max Storage | 118 acre-ft |
| Normal Storage | 60 acre-ft |
| Surface Area | 25 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 795 cfs |
| Year Completed | 1934 (92 years old) |
| NID ID | NH00518 |
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
CITY OF MANCHESTER
Local Government
Nearby Dams
Goldfish Pond Dam
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High Hazard 29 ftKelley'S Falls Dam
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Low Hazard 20 ftWoodbury Estate Pond Dam
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Significant Hazard 16 ftMassabesic Lake Dam
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High Hazard 30 ftDube Pond Dam
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Significant Hazard 8 ftCampus Drive Dam
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Significant Hazard 26 ftFrequently Asked Questions
What is the hazard classification of Dorrs Pond Dam?
Dorrs Pond 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 Dorrs Pond Dam?
Dorrs Pond Dam is owned by CITY OF MANCHESTER (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Dorrs Pond Dam built?
Dorrs Pond Dam was completed in 1934, making it 92 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 Dorrs Pond Dam?
Dorrs Pond 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 Dorrs Pond Dam?
Dorrs Pond Dam has a dam height of 9 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 Dorrs Pond Dam last inspected?
Dorrs Pond Dam was last inspected on September 22, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.