Warner Dam Reservoir Report
Last Updated: December 24, 2025
Warner Dam, also known as Chautauqua Lake Outlet Dam, is a concrete structure located in Jamestown, New York, along the Chadakoin River.
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Summary
Completed in 1979, this dam serves primarily for recreational purposes, offering a surface area of 13421 acres for water activities. With a height of 12 feet and a length of 96 feet, Warner Dam has a storage capacity of 117,105 acre-feet, providing essential water resources for the region.
Managed by the New York State Department of Environmental Conservation, Warner Dam is regulated and inspected regularly to ensure its structural integrity and compliance with safety standards. The dam has a significant hazard potential, and a moderate risk assessment rating indicates the need for ongoing risk management measures. Despite not being rated for its condition, Warner Dam remains a crucial infrastructure for water resource management and climate adaptation in Chautauqua County.
As a key feature in the Buffalo District, Warner Dam plays a vital role in managing water flow and protecting downstream areas from flooding. With its uncontrolled spillway type and maximum discharge capacity of 6,629 cubic feet per second, the dam is essential for maintaining water levels and preventing potential disasters. As climate change continues to impact the region, Warner Dam stands as a critical asset for water resource enthusiasts and climate advocates alike, highlighting the importance of sustainable infrastructure in a changing environment.
Year Completed |
1979 |
Dam Length |
96 |
Dam Height |
12 |
River Or Stream |
CHADAKOIN RIVER |
Primary Dam Type |
Concrete |
Surface Area |
13421 |
Drainage Area |
187.2 |
Nid Storage |
117105 |
Hazard Potential |
Significant |
Nid Height |
12 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Chadakoin River At Falconer Ny
|
745cfs |
Conewango Creek At Russell
|
3550cfs |
Brokenstraw Creek At Youngsville
|
737cfs |
Allegheny River Bl Conewango Creek At Warren
|
9280cfs |
Allegheny River At Kinzua Dam
|
5820cfs |
Allegheny River At Salamanca Ny
|
3300cfs |
Dam Data Reference
Condition Assessment
SatisfactoryNo 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
HighDams 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.
Warner Dam
Fairmount Avenue Jamestown