Sebec
Sebec is a timber crib dam located in Piscataquis County, Maine, built in 1984. It carries a High hazard potential classification and has a satisfactory condition assessment.
About Sebec
The primary purpose of Sebec 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 Dichotomy Capital Llc (private). It impounds the Sebec River near Milo.
The dam stands 15 feet tall and stretches 273 feet across, creates a reservoir covering 6,803 acres, has a maximum storage capacity of 60,330 acre-feet, and collects water from a drainage area of 327 square miles. Completed in 1984, the structure is 42 years old.
This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 08/30/2022.
Living Downstream
If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Maine dam safety program can provide more specific information about emergency planning for this structure.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Maine |
| County | Piscataquis |
| Nearest City | Milo |
| River/Stream | Sebec River |
| Coordinates | 45.27030, -69.11550 |
Physical Characteristics
| Dam Type | Timber Crib |
| NID Height | 15 ft |
| Dam Height | 15 ft |
| Dam Length | 273 ft |
| Year Completed | 1984 (42 years old) |
Storage & Hydraulics
| NID Storage | 60,330 acre-ft |
| Max Storage | 60,330 acre-ft |
| Normal Storage | 60,330 acre-ft |
| Surface Area | 6,803 acres |
| Drainage Area | 327 sq mi |
| Max Discharge | 14,200 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Hydroelectric |
| Owner | Dichotomy Capital LLC |
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 08/30/2022 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | ME00163 |
| Federal ID | ME00163 |
| More Info | State Dam Safety Program |