Larkin Creek Dam Reservoir Report

Last Updated: December 5, 2025

Larkin Creek Dam, also known as St Andrews Drive Retention Basin, is a crucial flood risk reduction structure located in the Town of Greece, Monroe County, New York.


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Summary

Completed in 1977, this earth-type dam stands at a height of 13 feet and spans a length of 2110 feet along Larkin Creek. With a storage capacity of 212 acre-feet and a maximum discharge rate of 4230 cubic feet per second, the dam plays a vital role in mitigating flood risks in the area.

Managed by the local government and regulated by the New York State Department of Environmental Conservation, Larkin Creek Dam is subject to routine inspections to ensure its structural integrity and safety. The dam's hazard potential is classified as high, but its condition assessment as of August 2020 was deemed satisfactory. In the event of an emergency, the dam does not have an Emergency Action Plan (EAP) in place, highlighting the need for proactive risk management and preparedness measures.

Overall, Larkin Creek Dam serves as a critical infrastructure for flood risk reduction in the region, with a moderate risk assessment rating. As climate change continues to impact water resources and increase the frequency of extreme weather events, the importance of maintaining and enhancing infrastructure like Larkin Creek Dam becomes increasingly apparent for ensuring the safety and resilience of communities against potential flooding disasters.

Year Completed

1977

Dam Length

2110

Dam Height

13

River Or Stream

LARKIN CREEK

Primary Dam Type

Earth

Drainage Area

0.96

Nid Storage

212

Hazard Potential

High

Nid Height

13
       
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.