Avery
Avery is a concrete dam located in Belknap County, New Hampshire, built in 1947. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Avery
The primary purpose of Avery is hydroelectric. The dam generates hydroelectric power by channeling water through turbines, converting the energy of flowing water into electricity. The dam is owned by Dichotomy Capital Llc (private). It impounds the Winnipesaukee River near Laconia.
The dam stands 13 feet tall and stretches 114 feet across, creates a reservoir covering 455 acres, has a maximum storage capacity of 3,700 acre-feet, and collects water from a drainage area of 374 square miles. Completed in 1947, 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 satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 09/14/2022.
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Location
| State | New Hampshire |
| County | Belknap |
| Nearest City | Laconia |
| River/Stream | Winnipesaukee River |
| Coordinates | 43.52820, -71.46780 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 13 ft |
| Dam Height | 13 ft |
| Dam Length | 114 ft |
| Year Completed | 1947 (79 years old) |
Storage & Hydraulics
| NID Storage | 3,700 acre-ft |
| Max Storage | 3,700 acre-ft |
| Normal Storage | 3,700 acre-ft |
| Surface Area | 455 acres |
| Drainage Area | 374 sq mi |
| Max Discharge | 5,960 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Hydroelectric |
| Owner | Dichotomy Capital LLC |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 09/14/2022 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NH00465 |
| Federal ID | NH00465 |
| More Info | State Dam Safety Program |