Roaring Brook Dam Reservoir Report

Last Updated: December 5, 2025

Roaring Brook Dam is a masonry structure located in Tompkins Corners, New York, with a primary purpose of recreation.


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Summary

Completed in 1959, this dam stands at a height of 25 feet and has a storage capacity of 895 acre-feet. The dam spans a length of 480 feet and has a spillway width of 30 feet, with a maximum discharge capacity of 471 cubic feet per second. The dam overlooks the scenic Roaring Brook, offering visitors a tranquil setting for outdoor activities.

Managed by the local government and regulated by the New York State Department of Environmental Conservation, Roaring Brook Dam is subject to regular inspections to ensure its structural integrity. Despite being classified as having a high hazard potential, the dam is currently assessed as being in fair condition. With a moderate risk assessment rating of 3, the dam is equipped with emergency action plans and continues to meet regulatory guidelines. Its surrounding area covers 112 acres and drains a 1.62 square mile watershed, making it an important water resource for the region.

Enthusiasts of water resources and climate will find Roaring Brook Dam to be a significant landmark in Putnam County, New York. Its role in providing recreational opportunities, regulating water flow, and maintaining environmental balance in the area underscores its importance in sustainable water management practices. As a popular destination for outdoor enthusiasts and nature lovers, Roaring Brook Dam serves as a testament to the harmonious coexistence of human infrastructure and natural ecosystems.

Year Completed

1959

Dam Length

480

Dam Height

25

River Or Stream

ROARING BROOK

Primary Dam Type

Masonry

Surface Area

112

Drainage Area

1.62

Nid Storage

895

Hazard Potential

High

Nid Height

25
       
Seasonal Comparison

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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.