Chimney Corners Dam Reservoir Report

Last Updated: December 21, 2025

Chimney Corners Dam, located in Westchester, New York, is a significant earth dam primarily used for recreation purposes.


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Summary

The dam stands at a height of 20 feet and stretches 140 feet in length, with a storage capacity of 53 acre-feet. Situated on the Furnace Brook, this private-owned structure is regulated by the New York State Department of Environmental Conservation and undergoes regular inspections to ensure its safety and functionality.

Despite its poor condition assessment and significant hazard potential, the Chimney Corners Dam still attracts water resource and climate enthusiasts due to its picturesque location in Chimney Corners. The dam's uncontrolled spillway and moderate risk assessment add an element of unpredictability and intrigue for visitors who appreciate the dynamic nature of water infrastructure. With the presence of emergency action plans and risk management measures, the dam strives to maintain a balance between public enjoyment and safety.

As a part of the Philadelphia District, Chimney Corners Dam's historical significance and recreational value make it a notable site for those interested in water resource management and climate resilience. While facing challenges in its condition and hazard potential, the dam serves as a reminder of the importance of proper maintenance and regulatory oversight in ensuring the longevity and safety of essential water structures. Visitors to Chimney Corners can appreciate the intersection of human ingenuity and natural beauty, all while recognizing the need for sustainable practices in water resource management.

Dam Length

140

Dam Height

20

River Or Stream

FURNACE BROOK

Primary Dam Type

Earth

Surface Area

8

Nid Storage

53

Hazard Potential

Significant

Nid Height

20
       
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.