Cobble Mountain Dam
Cobble Mountain Dam is an earth dam located in Belknap County, New Hampshire, built in 1986. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Cobble Mountain Dam
The primary purpose of Cobble Mountain Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Gunstock Area Commission (local government). It impounds the Poor Farm Brook near Gilford.
The dam stands 19 feet tall and stretches 90 feet across, creates a reservoir covering 30 acres, has a maximum storage capacity of 224 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 1986, the structure is 40 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 08/22/2018.
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Location
| State | New Hampshire |
| County | Belknap |
| Nearest City | Gilford |
| River/Stream | Poor Farm Brook |
| Coordinates | 43.54115, -71.35146 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 19 ft |
| Dam Height | 19 ft |
| Dam Length | 90 ft |
| Year Completed | 1986 (40 years old) |
Storage & Hydraulics
| NID Storage | 224 acre-ft |
| Max Storage | 224 acre-ft |
| Normal Storage | 51 acre-ft |
| Surface Area | 30 acres |
| Drainage Area | 2 sq mi |
Ownership & Safety
| Purpose | Recreation |
| Owner | GUNSTOCK AREA COMMISSION |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 08/22/2018 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NH00992 |
| Federal ID | NH00992 |
| More Info | State Dam Safety Program |