Old Mill Pond Dam
Key Takeaway
Old Mill Pond Dam is classified as significant hazard in New Hampshire. It was completed in 1930 and is 96 years old. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 11 ft (taller than 23.8% in NH) |
| Dam Length | 230 ft |
| Dam Type | Earth |
| Max Storage | 47 acre-ft |
| Normal Storage | 3 acre-ft |
| Surface Area | 3 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 210 cfs |
| Year Completed | 1930 (96 years old) |
| Year Modified | 2018 |
| NID ID | NH03563 |
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
TOWN OF HAMPTON
Local Government
Nearby Dams
Mill Pond Dam
Rockingham, NH
Low Hazard 13 ftEel Pond Dam
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Low Hazard 15 ftTaylor River Pond Dam
Rockingham, NH
High Hazard 19 ftBig Dodge Pond Dam
Rockingham, NH
Significant Hazard 12 ftTaylor River Pond Dam
Rockingham, NH
Unknown 14 ftExeter Reservoir Dam
Rockingham, NH
High Hazard 15 ftSouth Mill Pond Dam
Rockingham, NH
Low Hazard 14 ftExeter Sewage Lagoon Dam
Rockingham, NH
Significant Hazard 12 ftFrequently Asked Questions
What is the hazard classification of Old Mill Pond Dam?
Old Mill Pond 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 Old Mill Pond Dam?
Old Mill Pond Dam is owned by TOWN OF HAMPTON (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Old Mill Pond Dam built?
Old Mill Pond Dam was completed in 1930, making it 96 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 Old Mill Pond Dam?
Old Mill 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 Old Mill Pond Dam?
Old Mill Pond Dam has a dam height of 11 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 Old Mill Pond Dam last inspected?
Old Mill Pond Dam was last inspected on July 15, 2019. Inspection dates indicate when a formal review occurred, not the results of that inspection.