Island Pond Dam
Island Pond Dam is an earth dam located in Sullivan County, New Hampshire, built in 1861. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Island Pond Dam
The primary purpose of Island Pond Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Washington Lake Association (private). It impounds the Tr Beards Brook near Washington.
The dam stands 13 feet tall and stretches 120 feet across, creates a reservoir covering 194 acres, has a maximum storage capacity of 4,130 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 1861, the structure is one of the older dams in the region, with over a century and a half of service.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 05/08/2018.
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Location
| State | New Hampshire |
| County | Sullivan |
| Nearest City | Washington |
| River/Stream | Tr Beards Brook |
| Coordinates | 43.17110, -72.05970 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 13 ft |
| Dam Height | 13 ft |
| Dam Length | 120 ft |
| Year Completed | 1861 (165 years old) |
Storage & Hydraulics
| NID Storage | 4,130 acre-ft |
| Max Storage | 4,130 acre-ft |
| Normal Storage | 2,910 acre-ft |
| Surface Area | 194 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 185 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | WASHINGTON LAKE ASSOCIATION |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 05/08/2018 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NH00235 |
| Federal ID | NH00235 |
| More Info | State Dam Safety Program |