Lake Hebron is a concrete dam located in Piscataquis County, Maine, built in 1945. It carries a Low hazard potential classification.
Dam profile
NID height · 16 ft16 ft tall and 12 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic concrete gravity section and the water level is illustrative.
About Lake Hebron
The primary purpose of Lake Hebron 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 Monson (local government). It impounds the Tr Monson Stream.
The dam stands 16 feet tall and stretches 12 feet across, creates a reservoir covering 525 acres, and has a maximum storage capacity of 1,690 acre-feet. Completed in 1945, 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. The most recent inspection on record was 09/22/2014. That was over 12 years ago.
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Location
| State | Maine |
| County | Piscataquis |
| River/Stream | Tr Monson Stream |
| Coordinates | 45.28577, -69.50034 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 16 ft |
| Dam Height | 16 ft |
| Dam Length | 12 ft |
| Year Completed | 1945 (81 years old) |
Storage & Hydraulics
| NID Storage | 1,690 acre-ft |
| Max Storage | 1,690 acre-ft |
| Normal Storage | 845 acre-ft |
| Surface Area | 525 acres |
Ownership & Safety
| Purpose | Hydroelectric |
| Owner | Monson |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 09/22/2014 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | ME00165 |
| Federal ID | ME00165 |
| More Info | State Dam Safety Program |