Annabessacook Lake
Annabessacook Lake is a concrete dam located in Kennebec County, Maine, built in 1900. It carries a Low hazard potential classification.
About Annabessacook Lake
The primary purpose of Annabessacook Lake 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 Monmouth (local government). It impounds the Jug Stream.
The dam stands 11 feet tall and stretches 195 feet across, creates a reservoir covering 1,420 acres, has a maximum storage capacity of 3,250 acre-feet, and collects water from a drainage area of 70 square miles. Completed in 1900, 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. The most recent inspection on record was 05/14/2020.
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Location
| State | Maine |
| County | Kennebec |
| River/Stream | Jug Stream |
| Coordinates | 44.24206, -69.97706 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 11 ft |
| Dam Height | 11 ft |
| Dam Length | 195 ft |
| Year Completed | 1900 (126 years old) |
Storage & Hydraulics
| NID Storage | 3,250 acre-ft |
| Max Storage | 3,250 acre-ft |
| Normal Storage | 2,200 acre-ft |
| Surface Area | 1,420 acres |
| Drainage Area | 70 sq mi |
Ownership & Safety
| Purpose | Hydroelectric |
| Owner | Monmouth |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Last Inspection | 05/14/2020 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | ME00097 |
| Federal ID | ME00097 |
| More Info | State Dam Safety Program |