Willow Pond Dam Reservoir Report
Last Updated: December 26, 2025
Willow Pond Dam, located in Penfield, Monroe County, New York, is a local government-owned structure designed for flood risk reduction along the TR-IRONDEQUOIT CREEK.
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Summary
Built in 1973, the earth dam stands at a height of 10.9 feet and has a storage capacity of 38.5 acre-feet. With a significant hazard potential and a satisfactory condition assessment as of August 2018, the dam is regulated by the New York State Department of Environmental Conservation (NYS DEC) and undergoes regular inspections to ensure its structural integrity and safety.
The dam's spillway, with a width of 90 feet, is uncontrolled, allowing for a maximum discharge of 123 cubic feet per second. The primary purpose of Willow Pond Dam is flood risk reduction, serving to protect the surrounding area from potential inundation. Despite its moderate risk assessment level of 3, the dam meets regulatory guidelines and has emergency action plans in place to address any unforeseen events. With its strategic location and critical role in mitigating flood risks, Willow Pond Dam plays a vital part in water resource management and climate resilience efforts in the region.
As an essential infrastructure asset in Monroe County, Willow Pond Dam contributes to the overall water management strategy and environmental protection initiatives in the area. With its normal storage capacity of 11 acre-feet and a drainage area of 0.54 square miles, the dam serves as a key flood control measure for the community. With ongoing monitoring and maintenance, Willow Pond Dam continues to play a crucial role in safeguarding against potential flooding events and ensuring the long-term resilience of the surrounding ecosystem in Penfield, New York.
Year Completed |
1973 |
Dam Height |
10.9 |
River Or Stream |
TR-IRONDEQUOIT CREEK |
Primary Dam Type |
Earth |
Surface Area |
3.9 |
Drainage Area |
0.54 |
Nid Storage |
38.5 |
Hazard Potential |
Significant |
Nid Height |
11 |
Seasonal Comparison
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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.
Willow Pond Dam
Erie Canal Boat Launch