Seabright Reservoir Report
Nearby: Megunticook East Megunticook West
Last Updated: December 19, 2025
Seabright is a hydroelectric dam located in Camden, Maine, along the Megunticook River.
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Summary
Built in 1900, this concrete structure stands at 23 feet in height and spans 372 feet in length. With a storage capacity of 970 acre-feet and a normal storage of 825 acre-feet, Seabright serves various purposes including fire protection, stock, small fish pond, hydroelectric power generation, and recreation. The dam has a high hazard potential but is currently in satisfactory condition as per the last assessment in 2017.
Managed by the local government, Seabright is regulated by the Maine Emergency Management Agency (MEMA) and undergoes regular inspections, enforcement, and permitting to ensure its safety and compliance with state regulations. The dam is equipped with emergency action plans, although their last revision was in May 2021. Located in Knox County, Maine, Seabright plays a crucial role in water resource management, flood control, and providing renewable energy to the surrounding area. Enthusiasts of water resources and climate will find Seabright to be an intriguing structure that merges historical significance with modern-day functionality and environmental responsibility.
Year Completed |
1900 |
Dam Length |
372 |
Dam Height |
23 |
River Or Stream |
Megunticook |
Primary Dam Type |
Concrete |
Surface Area |
97 |
Hydraulic Height |
16 |
Drainage Area |
32 |
Nid Storage |
970 |
Hazard Potential |
High |
Nid Height |
23 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Dam Data Reference
Condition Assessment
SatisfactoryNo existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
Fair
No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action. Note: Rare or extreme event is defined by the regulatory agency based on their minimum
Poor A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency. Investigations and studies are necessary.
Unsatisfactory
A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
Not Rated
The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.
Not Available
Dams for which the condition assessment is restricted to approved government users.
Hazard Potential Classification
HighDams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
Significant
Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environment damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.
Low
Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner's property.
Undetermined
Dams for which a downstream hazard potential has not been designated or is not provided.
Not Available
Dams for which the downstream hazard potential is restricted to approved government users.
Seabright
MEGUNTICOOK LAKE