Lochmere is a masonry dam located in Belknap County, New Hampshire, built in 1910. It carries a Low hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 11 ft11 ft tall and 223 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic concrete gravity section and the water level is illustrative.
About Lochmere
The primary purpose of Lochmere is hydroelectric. The dam generates hydroelectric power by channeling water through turbines, converting the energy of flowing water into electricity. The dam is state-owned. It impounds the Winnipesaukee River near East Tilton.
The dam stands 11 feet tall and stretches 223 feet across, creates a reservoir covering 4,264 acres, has a maximum storage capacity of 33,280 acre-feet, and collects water from a drainage area of 428 square miles. Completed in 1910, the structure is over a century old.
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 07/31/2018.
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Location
| State | New Hampshire |
| County | Belknap |
| Nearest City | East Tilton |
| River/Stream | Winnipesaukee River |
| Coordinates | 43.47320, -71.53360 |
Physical Characteristics
| Dam Type | Masonry |
| NID Height | 11 ft |
| Dam Height | 11 ft |
| Dam Length | 223 ft |
| Year Completed | 1910 (116 years old) |
Storage & Hydraulics
| NID Storage | 33,280 acre-ft |
| Max Storage | 33,280 acre-ft |
| Normal Storage | 20,800 acre-ft |
| Surface Area | 4,264 acres |
| Drainage Area | 428 sq mi |
| Max Discharge | 2,400 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Hydroelectric |
| Owner Type | State |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 07/31/2018 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NH00015 |
| Federal ID | NH00015 |
| More Info | State Dam Safety Program |