East Br Cazenovia Creek Legion Dam Reservoir Report
Last Updated: December 6, 2025
East Br Cazenovia Creek Legion Dam, located in East Aurora, New York, is a rockfill dam completed in 1960 with a primary purpose of flood risk reduction along the East Branch of Cazenovia Creek.
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Summary
Standing at a height of 13 feet and a length of 165 feet, the dam provides a storage capacity of 118 acre-feet and covers a drainage area of 50.1 square miles. Despite its low hazard potential, the dam has a high risk assessment rating of 2, highlighting the importance of its role in managing flood risks in the region.
Managed by the local government and regulated by the New York State Department of Environmental Conservation, East Br Cazenovia Creek Legion Dam has not been rated for its condition assessment. The last inspection was conducted in July 2011, indicating a lack of recent evaluation. With a maximum discharge capacity of 5900 cubic feet per second and no spillway, the dam's performance in extreme weather events is crucial for protecting downstream communities. As a significant infrastructure for flood control, the dam plays a vital role in safeguarding the surrounding areas from potential water-related disasters.
While the dam is not owned or funded by federal agencies, its operation and maintenance are overseen by the local government, emphasizing the importance of community involvement in water resource management. With its strategic location and critical function in flood risk reduction, East Br Cazenovia Creek Legion Dam serves as a key asset in the region's water infrastructure, highlighting the intersection of water resource management and climate resilience in safeguarding communities against natural hazards.
Year Completed |
1960 |
Dam Length |
165 |
Dam Height |
13 |
River Or Stream |
E BRANCH CAZENOVIA CREEK |
Primary Dam Type |
Rockfill |
Surface Area |
13 |
Drainage Area |
50.1 |
Nid Storage |
118 |
Hazard Potential |
Low |
Nid Height |
13 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
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.
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