Plymouth Reservoir Report
Nearby: Sebasticook Carlton Pond Dam
Last Updated: December 19, 2025
Plymouth is a captivating town in Maine, known for its picturesque Martin Stream and the concrete dam that stands as a testament to the town's rich history.
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Summary
Completed in 1920, this dam serves multiple purposes, including recreational activities and ensuring water resource management in the area. With a height of 11 feet and a storage capacity of 2025 acre-feet, the dam plays a crucial role in regulating the flow of water and maintaining the ecological balance in the region.
Managed by the local government and regulated by MEMA, Plymouth's dam is considered to have low hazard potential and is currently not rated for its condition assessment. Despite the lack of recent inspection data, the town's commitment to water resource management is evident through the existence of emergency action plans and regular inspections. With a spillway width of 90 feet and a surface area of 480 acres, the dam in Plymouth showcases the town's dedication to ensuring the safety and well-being of its residents and surrounding environment.
Plymouth's dam stands as a symbol of resilience and adaptability, with a history dating back to the early 20th century. As climate change continues to impact water resources worldwide, Plymouth's commitment to maintaining and improving its dam reflects a proactive approach to addressing the challenges posed by a changing climate. With a focus on sustainability and environmental stewardship, Plymouth serves as a model for other communities seeking to safeguard their water resources for future generations.
Year Completed |
1920 |
Dam Length |
325 |
Dam Height |
11 |
River Or Stream |
Martin Stream |
Primary Dam Type |
Concrete |
Surface Area |
480 |
Hydraulic Height |
11 |
Nid Storage |
2025 |
Structural Height |
11 |
Hazard Potential |
Low |
Nid Height |
11 |
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.
Plymouth