Gristmill Pond
Gristmill Pond is a concrete dam located in Penobscot County, Maine, built in 1978. It carries a Low hazard potential classification and has a unsatisfactory condition assessment.
About Gristmill Pond
The primary purpose of Gristmill Pond 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 Robert Kelly (private). It impounds the Eskutassis.
The dam stands 15 feet tall and stretches 700 feet across, creates a reservoir covering 117 acres, has a maximum storage capacity of 1,446 acre-feet, and collects water from a drainage area of 16 square miles. Completed in 1978, the structure is 48 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 unsatisfactory, indicating serious safety deficiencies exist that require immediate attention or remedial action.
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Location
| State | Maine |
| County | Penobscot |
| River/Stream | Eskutassis |
| Coordinates | 45.20434, -68.44920 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 15 ft |
| Dam Height | 15 ft |
| Dam Length | 700 ft |
| Year Completed | 1978 (48 years old) |
Storage & Hydraulics
| NID Storage | 1,446 acre-ft |
| Max Storage | 1,446 acre-ft |
| Normal Storage | 410 acre-ft |
| Surface Area | 117 acres |
| Drainage Area | 16 sq mi |
Ownership & Safety
| Purpose | Hydroelectric |
| Owner | Robert Kelly |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Unsatisfactory |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | ME00605 |
| Federal ID | ME00605 |
| More Info | State Dam Safety Program |