Chases Pond Dike Reservoir Report

Last Updated: December 19, 2025

Chases Pond Dike, located in York, Maine, is a vital structure owned by a public utility that serves as a key component in providing water supply to the area.


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Summary

Completed in 1950, this earth dam stands at a height of 6 feet and stretches for 542 feet, with a storage capacity of 2130 acre-feet. The dam sits on the Cape Neddick river and plays a crucial role in managing water resources in the region.

Despite its age, Chases Pond Dike remains in satisfactory condition, with regular inspections ensuring its structural integrity. With a significant hazard potential, the dam is regulated by MEMA and falls under state jurisdiction, with permits, inspections, and enforcement measures in place to guarantee its safety and functionality. The dam's emergency action plan is periodically updated to meet guidelines, reflecting a commitment to risk management and public safety.

As a key infrastructure for water supply, Chases Pond Dike represents a crucial link in the region's water management system. Its strategic location and storage capacity play a vital role in ensuring a reliable water supply for the community. With a history dating back to the mid-20th century, this earth dam continues to serve its purpose effectively, underlining the importance of robust water resource infrastructure in the face of changing climate patterns.

Year Completed

1950

Dam Length

542

Dam Height

6

River Or Stream

Cape Neddick

Primary Dam Type

Earth

Surface Area

137

Drainage Area

4

Nid Storage

2130

Structural Height

6

Hazard Potential

Significant

Nid Height

6
       
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.