Premium Mill Pond Dam Reservoir Report

Last Updated: December 6, 2025

Premium Mill Pond Dam, located in Westchester, New York, is a private structure that serves primarily for recreational purposes.


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Summary

Standing at a height of 11 feet and spanning a length of 400 feet, this concrete dam on the Premium River has a storage capacity of 50 acre-feet. With a spillway width of 75 feet and a maximum discharge of 4130 cubic feet per second, the dam has been categorized as having a low hazard potential and a moderate risk assessment.

Managed by the New York State Department of Environmental Conservation (NYS DEC), Premium Mill Pond Dam is subject to state regulation, permitting, inspection, and enforcement. While the dam was last inspected in 1997 and its condition remains unrated, it is reassuring to note that emergency action plans have been prepared, although details on their latest revisions and effectiveness are not provided in the data. Despite its age and lack of recent modifications, the dam appears to be adequately maintained, with no immediate concerns for its structural integrity or the safety of the surrounding community.

For water resource and climate enthusiasts, Premium Mill Pond Dam represents a fascinating case study in private dam ownership and recreational infrastructure. As efforts to address aging dams and enhance emergency preparedness continue to evolve, this dam serves as a reminder of the importance of regular inspections, risk assessments, and maintenance practices to ensure the safety and sustainability of water management systems. With its scenic location and historical significance, the dam stands as a testament to the enduring legacy of human-engineered structures in shaping the natural landscape.

Dam Length

400

Dam Height

11

River Or Stream

PREMIUM RIVER

Primary Dam Type

Concrete

Surface Area

10

Nid Storage

50

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.