Batavia Kill Watershed Dam #4a Reservoir Report
Last Updated: December 7, 2025
Batavia Kill Watershed Dam #4a, also known as the Siam Rd-Gerald Kirk Memorial Dam, is a crucial structure located in Greene, New York.
°F
°F
mph
Wind
%
Humidity
Summary
Built in 1967 by the USDA NRCS, this earth dam stands at a height of 57 feet and has a length of 1400 feet, providing flood risk reduction for the surrounding areas along the Batavia Kill river. With a storage capacity of 2928 acre-feet and a drainage area of 6.8 square miles, this dam plays a significant role in managing water resources in the region.
Managed by the local government and regulated by the NYS DEC, Batavia Kill Watershed Dam #4a has a high hazard potential but is currently in satisfactory condition according to a 2017 assessment. With a maximum discharge capacity of 29988 cubic feet per second and an uncontrolled spillway width of 281 feet, this dam is equipped to handle moderate risk levels. Regular inspections take place every two years to ensure the safety and effectiveness of the structure, with emergency action plans in place to respond to any potential hazards.
Located in Windham, New York, this dam serves as a vital piece of infrastructure for the community, protecting against flooding and preserving water resources in the area. With a strategic design and operational support from the Natural Resources Conservation Service, Batavia Kill Watershed Dam #4a stands as a testament to effective water management and climate resilience efforts in the region.
Year Completed |
1967 |
Dam Length |
1400 |
Dam Height |
57 |
River Or Stream |
BATAVIA KILL |
Primary Dam Type |
Earth |
Surface Area |
10 |
Drainage Area |
6.8 |
Nid Storage |
2928 |
Hazard Potential |
High |
Nid Height |
57 |
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.
Batavia Kill Watershed Dam #4a