Indian Brook Reservoir Dam Reservoir Report

Last Updated: December 21, 2025

Indian Brook Reservoir Dam, located in Crotonville, Westchester, New York, stands as a vital water supply infrastructure managed by the local government.


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Summary

Completed in 1889, this Earth-type dam holds a height of 43 feet and a length of 500 feet, with a storage capacity of 369 acre-feet. Serving the primary purpose of water supply, the dam regulates the flow of the Croton River and provides essential resources to the surrounding area.

With a controlled spillway and a maximum discharge capacity of 634 cubic feet per second, Indian Brook Reservoir Dam poses a high hazard potential but maintains a satisfactory condition assessment as of May 2019. Despite its age, the dam undergoes regular inspections every two years to ensure its structural integrity and safety. Additionally, the dam's emergency action plan is up-to-date, although specific details on its guidelines and readiness are not provided in the data.

Climate enthusiasts and water resource professionals alike can appreciate the historical significance and critical role of Indian Brook Reservoir Dam in managing water resources and addressing the region's water supply needs. As a regulated and inspected structure, the dam represents a key component of New York's infrastructure, safeguarding against potential risks and ensuring the continued availability of water for the community.

Year Completed

1889

Dam Length

500

Dam Height

43

River Or Stream

CROTON RIVER

Primary Dam Type

Earth

Surface Area

15

Drainage Area

0.75

Nid Storage

369

Hazard Potential

High

Nid Height

43
       
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.