Oyster Reservoir Dam
Key Takeaway
Oyster Reservoir Dam is classified as significant hazard in New Hampshire. It was completed in 1934 and is 92 years old. Its primary use is water supply. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 21 ft (taller than 74.5% in NH) |
| Dam Length | 180 ft |
| Dam Type | Concrete |
| Max Storage | 208 acre-ft |
| Normal Storage | 172 acre-ft |
| Surface Area | 7 acres |
| Drainage Area | 17 sq mi |
| Max Discharge | 4,997 cfs |
| Year Completed | 1934 (92 years old) |
| NID ID | NH00565 |
Safety Information
No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
UNIVERSITY OF NH
State Government
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Unknown 13 ftFrequently Asked Questions
What is the hazard classification of Oyster Reservoir Dam?
Oyster Reservoir Dam is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Oyster Reservoir Dam?
Oyster Reservoir Dam is owned by UNIVERSITY OF NH (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Oyster Reservoir Dam built?
Oyster Reservoir 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 Oyster Reservoir Dam?
Oyster Reservoir Dam serves the following purposes: Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Oyster Reservoir Dam?
Oyster Reservoir Dam has a dam height of 21 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 Oyster Reservoir Dam last inspected?
Oyster Reservoir Dam was last inspected on July 12, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.