Silver Lake Dam Reservoir Report
Last Updated: December 6, 2025
Silver Lake Dam, located in Mountain Dale, New York, serves as a crucial water supply structure for the area.
°F
°F
mph
Wind
%
Humidity
Summary
Constructed in 1850, this stone dam stands at a height of 14 feet and has a storage capacity of 280 acre-feet. The dam spans 176 feet across the Sundburg Creek, with a controlled spillway width of 17 feet, ensuring efficient water management during periods of high discharge.
Managed by the local government and regulated by the New York State Department of Environmental Conservation, Silver Lake Dam poses a significant hazard potential due to its age and condition assessment being rated as "Not Rated." Despite its risk level being classified as very high, emergency action plans have not been prepared or updated recently. The dam's location and historical significance highlight the importance of implementing necessary risk management measures to ensure the safety and security of the surrounding community and environment. Climate and water resource enthusiasts are encouraged to monitor developments related to Silver Lake Dam to ensure its continued functionality and safety in the face of changing environmental conditions.
Year Completed |
1850 |
Dam Length |
176 |
Dam Height |
14 |
River Or Stream |
SUNDBURG CREEK |
Primary Dam Type |
Stone |
Surface Area |
83 |
Drainage Area |
42.81 |
Nid Storage |
280 |
Hazard Potential |
Significant |
Nid Height |
14 |
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.
Silver Lake Dam
Neversink River At Woodbourne Ny