Hamilton Pond Reservoir Report

Last Updated: December 20, 2025

Hamilton Pond, located in Hancock, Maine, is a privately-owned water resource regulated by the state agency MEMA.


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Summary

Built in 1920, this Earth-type dam stands at 11 feet high and spans a length of 135 feet, with a storage capacity of 207 acre-feet. The pond serves multiple purposes including fire protection, stock, small fish pond, fish and wildlife habitat, and recreational activities like fishing and boating. With a low hazard potential and a condition assessment of "Not Rated", Hamilton Pond offers a tranquil and safe environment for water and climate enthusiasts to enjoy.

Surrounded by the scenic beauty of Stony Brook and nestled within the New England District, Hamilton Pond provides a peaceful retreat for visitors seeking outdoor recreation and nature appreciation. Its 50-acre surface area and 165-acre normal storage capacity make it a valuable resource for local wildlife and residents alike. Despite its age, the pond's dam structure remains sturdy and well-maintained, ensuring the safety and longevity of this important water feature in the region.

With state-regulated permitting, inspection, and enforcement in place, Hamilton Pond demonstrates a commitment to responsible water resource management and environmental stewardship. As a vital component of the local ecosystem and a source of leisure and enjoyment for the community, this historic pond continues to play a significant role in supporting biodiversity and sustainable recreational activities in the area.

Year Completed

1920

Dam Length

135

Dam Height

11

River Or Stream

Stony Brook

Primary Dam Type

Earth

Surface Area

50

Hydraulic Height

8

Nid Storage

207

Structural Height

11

Hazard Potential

Low

Nid Height

11
       
Seasonal Comparison

Weather Forecast

Dam Data Reference

Condition Assessment

Satisfactory
No 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

High
Dams 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.