York
York is a concrete dam located in Merrimack County, New Hampshire, built in 1967. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About York
The primary purpose of York 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 Contoocook River near Boscawen.
The dam stands 10 feet tall and stretches 230 feet across, creates a reservoir covering 50 acres, has a maximum storage capacity of 500 acre-feet, and collects water from a drainage area of 760 square miles. Completed in 1967, the structure is well into its service life at over 50 years 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 06/04/2019.
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Location
| State | New Hampshire |
| County | Merrimack |
| Nearest City | Boscawen |
| River/Stream | Contoocook River |
| Coordinates | 43.26920, -71.61320 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 10 ft |
| Dam Height | 10 ft |
| Dam Length | 230 ft |
| Year Completed | 1967 (59 years old) |
Storage & Hydraulics
| NID Storage | 500 acre-ft |
| Max Storage | 500 acre-ft |
| Normal Storage | 150 acre-ft |
| Surface Area | 50 acres |
| Drainage Area | 760 sq mi |
| Max Discharge | 14,150 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Hydroelectric |
| Owner Type | State |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 06/04/2019 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NH00348 |
| Federal ID | NH00348 |
| More Info | State Dam Safety Program |