Brocton Reservoir Dam Reservoir Report

Last Updated: December 7, 2025

Brocton Reservoir Dam, located in Brocton, New York, serves as a crucial structure for water supply purposes in the region.


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Summary

Constructed in 1952, this earth dam stands at a height of 52 feet and spans a length of 988 feet, with a storage capacity of 479 acre-feet and a surface area of 26 acres. The dam regulates the flow of Slippery Rock Creek, with a maximum discharge capacity of 4,322 cubic feet per second and an uncontrolled spillway width of 60 feet.

Managed by the local government and regulated by the New York State Department of Environmental Conservation, the dam is inspected biennially to ensure its fair condition and high hazard potential are monitored effectively. With a moderate risk assessment rating, the dam's emergency action plan readiness and adherence to guidelines are aspects that continue to be addressed. The surrounding community, as well as water resource and climate enthusiasts, recognize the importance of the Brocton Reservoir Dam in safeguarding water supply and managing potential risks associated with its operation and maintenance.

Year Completed

1952

Dam Length

988

Dam Height

52

River Or Stream

SLIPPERY ROCK CREEK

Primary Dam Type

Earth

Surface Area

26

Drainage Area

3.5

Nid Storage

479

Hazard Potential

High

Nid Height

52
       
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.