South Lake Dam (Middle) Reservoir Report

Last Updated: December 5, 2025

South Lake Dam (Middle) in Ludingtonville, New York, is a local government-owned structure with a primary purpose of recreation.


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Summary

Completed in 1921, this earth dam stands at a height of 12 feet and spans 290 feet in length, providing a storage capacity of 35 acre-feet. The dam, located on TR-STUMP POND STREAM, has a surface area of 6 acres and a drainage area of 1 square mile.

Despite its age, South Lake Dam (Middle) has a significant hazard potential and a poor condition assessment as of November 2018. The dam's spillway type is uncontrolled, with a width of 3 feet. The last inspection was conducted in November 2020, with a frequency of every 2 years. The risk assessment for this dam is moderate (3), highlighting the importance of ongoing monitoring and maintenance to ensure its safety and integrity for water resource and climate enthusiasts in the area.

Overall, South Lake Dam (Middle) plays a crucial role in providing recreational opportunities while also managing water resources in Putnam County, New York. With state regulation, inspection, and enforcement in place, the dam serves as a vital structure for the community. However, the dam's current condition and hazard potential underscore the need for continued attention and risk management to safeguard both the dam and the surrounding environment for future generations.

Year Completed

1921

Dam Length

290

Dam Height

12

River Or Stream

TR-STUMP POND STREAM

Primary Dam Type

Earth

Surface Area

6

Drainage Area

1

Nid Storage

35

Hazard Potential

Significant

Nid Height

12
       
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.