Souhegan Site 8 South Dike
Key Takeaway
Souhegan Site 8 South Dike is classified as low hazard in New Hampshire. It was completed in 1977 and is 49 years old. Its primary use is flood risk reduction.
Physical Details
| Dam Height | 9 ft (taller than 10.9% in NH) |
| Dam Length | 330 ft |
| Dam Type | Earth |
| Max Storage | 170 acre-ft |
| Normal Storage | 130 acre-ft |
| Surface Area | 48 acres |
| Drainage Area | 4 sq mi |
| Year Completed | 1977 (49 years old) |
| NID ID | NH01074 |
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
Souhegan Site 8 Cemetery Dike
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Low Hazard 16 ftSouhegan River Site 33 Dam
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High Hazard 21 ftSouhegan Site 8 Dam
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High Hazard 25 ftNew Wilton Reservoir Dam
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High Hazard 24 ftWs Packaging Canal Dam
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High Hazard 15 ftFrog Pond Dam
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Significant Hazard 15 ftHillsborough Mill
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Significant Hazard 22 ftSouhegan River Site 10a Dam
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High Hazard 59 ftFrequently Asked Questions
What is the hazard classification of Souhegan Site 8 South Dike?
Souhegan Site 8 South Dike 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 Souhegan Site 8 South Dike?
Souhegan Site 8 South Dike is owned by NH DES WATER DIVISION (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Souhegan Site 8 South Dike built?
Souhegan Site 8 South Dike was completed in 1977, making it 49 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 Souhegan Site 8 South Dike?
Souhegan Site 8 South Dike serves the following purposes: Flood Risk Reduction. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Souhegan Site 8 South Dike?
Souhegan Site 8 South Dike 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 Souhegan Site 8 South Dike last inspected?
Souhegan Site 8 South Dike was last inspected on April 24, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.