Silver Lake Dam
Silver Lake Dam is a concrete dam located in Carroll County, New Hampshire, built in 1926. It carries a Low hazard potential classification and has a fair condition assessment.
About Silver Lake Dam
The primary purpose of Silver Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Town Of Madison (local government). It impounds the West Ossipee Branch near Madison.
The dam stands 8 feet tall and stretches 60 feet across, creates a reservoir covering 995 acres, has a maximum storage capacity of 5,500 acre-feet, and collects water from a drainage area of 22 square miles. Completed in 1926, the structure is well-established, with more than 75 years 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 fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. The most recent inspection on record was 06/26/2019.
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Location
| State | New Hampshire |
| County | Carroll |
| Nearest City | Madison |
| River/Stream | West Ossipee Branch |
| Coordinates | 43.84860, -71.17160 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 8 ft |
| Dam Height | 8 ft |
| Dam Length | 60 ft |
| Year Completed | 1926 (100 years old) |
Storage & Hydraulics
| NID Storage | 5,500 acre-ft |
| Max Storage | 5,500 acre-ft |
| Normal Storage | 3,000 acre-ft |
| Surface Area | 995 acres |
| Drainage Area | 22 sq mi |
| Max Discharge | 1,345 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | TOWN OF MADISON |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 06/26/2019 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NH00287 |
| Federal ID | NH00287 |
| More Info | State Dam Safety Program |