Island Pond Dam
Key Takeaway
Island Pond Dam is classified as low hazard in New Hampshire. It was completed in 1920 and is 106 years old. Its primary use is recreation.
Physical Details
| Dam Height | 17 ft (taller than 59.6% in NH) |
| Dam Length | 420 ft |
| Dam Type | Earth |
| Max Storage | 251 acre-ft |
| Normal Storage | 145 acre-ft |
| Surface Area | 32 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 565 cfs |
| Year Completed | 1920 (106 years old) |
| Year Modified | 2005 |
| NID ID | NH00384 |
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
HAMPSHIRE COUNTRY SCHOOL
Private
Nearby Dams
Mill Pond Dam
Cheshire, NH
Low Hazard 20 ftMountain Pond Dam
Hillsborough, NH
Low Hazard 13 ftBancroft Reservoir Dam
Cheshire, NH
Low Hazard 15 ftPratt Pond Dam
Hillsborough, NH
Low Hazard 7 ftWallace Pond Dam
Worcester, MA
Significant Hazard 11 ftVan Dyke Dam
Cheshire, NH
Low Hazard 8 ftHubbard Pond Dam & Dike
Cheshire, NH
Significant Hazard 8 ftSouhegan River Site 35 Dam
Hillsborough, NH
High Hazard 30 ftFrequently Asked Questions
What is the hazard classification of Island Pond Dam?
Island 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 Island Pond Dam?
Island Pond Dam is owned by HAMPSHIRE COUNTRY SCHOOL (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Island Pond Dam built?
Island Pond Dam was completed in 1920, making it 106 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 Island Pond Dam?
Island 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 Island Pond Dam?
Island Pond Dam has a dam height of 17 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 Island Pond Dam last inspected?
Island Pond Dam was last inspected on November 1, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.