Pleasant Pond Reservoir Report

Last Updated: December 14, 2025

Pleasant Pond, located in Casco and Otisfield, Maine, is a concrete dam completed in 1850 with a primary purpose of flood risk reduction.


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Summary

The dam has a height of 10 feet and a hydraulic height of 8 feet, providing a normal storage capacity of 9200 acre-feet and a maximum storage of 11800 acre-feet. The pond covers a surface area of 1300 acres and has a drainage area of 9.3 square miles, making it an important water resource for the local community.

Managed by the local government and regulated by the Maine Emergency Management Agency (MEMA), Pleasant Pond is in good condition with a low hazard potential. While the dam structure is not currently rated, regular inspections are conducted every 12 months to ensure its safety and functionality. With its multiple purposes including fire protection, recreation, and water supply, Pleasant Pond serves as a valuable asset for the surrounding area, providing both environmental and practical benefits to residents and wildlife alike.

Visitors to Pleasant Pond can enjoy its scenic beauty, engage in recreational activities, and appreciate its role in flood risk reduction and water resource management. With its historical significance dating back to the 19th century, Pleasant Pond stands as a testament to the importance of sustainable water infrastructure and the preservation of natural resources in the face of changing climate conditions.

Year Completed

1850

Dam Length

110

Dam Height

10

River Or Stream

Pleasant Lake

Primary Dam Type

Concrete

Surface Area

1300

Hydraulic Height

8

Drainage Area

9.3

Nid Storage

11800

Structural Height

10

Hazard Potential

Low

Nid Height

10
       
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.