Heald Pond Reservoir Report

Last Updated: December 16, 2025

Heald Pond, located in Oxford, Maine, is a picturesque body of water with a rich history dating back to its completion in 1860.


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Summary

This hydroelectric dam, primarily made of concrete, serves multiple purposes including fire protection, stock and small fish habitat, recreation, and water supply. With a dam height of 12 feet and a storage capacity of 800 acre-feet, Heald Pond plays a crucial role in the local ecosystem and community.

Managed by the Maine Emergency Management Agency (MEMA), Heald Pond is regulated, permitted, inspected, and enforced for safety and environmental compliance. Despite its low hazard potential, the condition assessment of the dam is currently not rated, with the last assessment conducted in August 2017. With its serene surroundings and diverse ecosystem, Heald Pond is not only a vital water resource but also a popular spot for outdoor enthusiasts and wildlife enthusiasts alike.

The dam at Heald Pond, situated on Mill Brook, boasts a surface area of 101 acres and a drainage area of 5 square miles. While it has not been modified in recent years, the dam continues to provide valuable services to the local community. With its tranquil waters and lush surroundings, Heald Pond stands as a testament to the importance of responsible water resource management and the harmonious coexistence of nature and human infrastructure in the face of climate change challenges.

Year Completed

1860

Dam Length

20

Dam Height

12

River Or Stream

Mill Brook

Primary Dam Type

Concrete

Surface Area

101

Hydraulic Height

9

Drainage Area

5

Nid Storage

800

Structural Height

12

Hazard Potential

Low

Nid Height

12
       
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.