Ripley Pond Reservoir Report
Nearby: Weymouth Pond Wassookeag Lake
Last Updated: December 19, 2025
Ripley Pond, located in Ripley, Maine, is a privately owned water body that serves multiple purposes, including hydroelectric power generation, fire protection, stock, small fish pond, fish and wildlife habitat, flood risk reduction, recreation, and water supply.
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Summary
The earthen dam that forms Ripley Pond was completed in 1877 and stands at a height of 10 feet, with a hydraulic height of 6 feet. The pond has a storage capacity of 160 acre-feet and a normal storage level of 128 acre-feet, covering a surface area of 220 acres.
Despite its age, Ripley Pond has a low hazard potential and has not been rated for its current condition. The dam's last inspection was conducted in July 2002, with a scheduled inspection frequency of 12 years. The pond is state-regulated by the Maine Emergency Management Agency (MEMA), with permitting, inspection, and enforcement all conducted by the state. With its historical significance and diverse range of uses, Ripley Pond is a valuable resource for the community of Ripley and a prime location for water resource and climate enthusiasts to explore and appreciate.
Year Completed |
1877 |
Dam Length |
100 |
Dam Height |
10 |
River Or Stream |
Ripley Stream |
Primary Dam Type |
Earth |
Surface Area |
220 |
Hydraulic Height |
6 |
Drainage Area |
6 |
Nid Storage |
160 |
Structural Height |
10 |
Hazard Potential |
Low |
Nid Height |
10 |
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.
Ripley Pond