Spoonwood Pond Dam
Key Takeaway
Spoonwood Pond Dam is classified as low hazard in New Hampshire. It was completed in 1855 and is 171 years old. Its primary use is recreation.
Physical Details
| Dam Height | 12 ft (taller than 28.2% in NH) |
| Dam Length | 280 ft |
| Dam Type | Earth |
| Max Storage | 775 acre-ft |
| Normal Storage | 500 acre-ft |
| Surface Area | 167 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 96 cfs |
| Year Completed | 1855 (171 years old) |
| NID ID | NH00338 |
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
TWITCHELLS MILLS HYDRO CORP
Private
Nearby Dams
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Low Hazard 13 ftWillard Pond Dam
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Low Hazard 8 ftSkatutakee Lake Dam
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High Hazard 18 ftHarrisville Pond Dam
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High Hazard 16 ftCheshire Mills
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Significant Hazard 21 ftFrequently Asked Questions
What is the hazard classification of Spoonwood Pond Dam?
Spoonwood Pond 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 Spoonwood Pond Dam?
Spoonwood Pond Dam is owned by TWITCHELLS MILLS HYDRO CORP (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Spoonwood Pond Dam built?
Spoonwood Pond Dam was completed in 1855, making it 171 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 Spoonwood Pond Dam?
Spoonwood 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 Spoonwood Pond Dam?
Spoonwood Pond Dam has a dam height of 12 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 Spoonwood Pond Dam last inspected?
Spoonwood Pond Dam was last inspected on July 16, 2018. Inspection dates indicate when a formal review occurred, not the results of that inspection.