Lake Roxanne Dam Reservoir Report
Nearby: Mcgregor Dam Chazy Lake Dam
Last Updated: December 19, 2025
Lake Roxanne Dam, located in Ellenburg Depot, New York, is a private dam with a primary purpose of recreation.
°F
°F
mph
Wind
%
Humidity
Summary
Constructed in 1967, this concrete dam stands at a height of 17 feet and has a storage capacity of 1000 acre-feet, with a normal storage level of 340 acre-feet. The dam spans the Great Chazy River and covers a surface area of 200 acres.
Despite its recreational value, Lake Roxanne Dam poses a significant hazard potential due to its poor condition assessment. With a risk assessment rating of moderate (3), the dam requires regular inspections and maintenance to ensure the safety of the surrounding area. The last inspection was conducted in June 2017, with an inspection frequency of 4 years.
As water resource and climate enthusiasts, the data on Lake Roxanne Dam serves as a reminder of the importance of proper dam management and maintenance. With the potential for significant risk, it is crucial for regulatory agencies like the NYS DEC to continue overseeing the dam's operations, inspections, and enforcement to prevent any potential disasters. Ongoing risk management measures and adherence to safety guidelines are necessary to protect the community and the environment surrounding the dam.
Year Completed |
1967 |
Dam Height |
17 |
River Or Stream |
GREAT CHAZY RIVER |
Primary Dam Type |
Concrete |
Surface Area |
200 |
Nid Storage |
1000 |
Hazard Potential |
Significant |
Nid Height |
17 |
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.
Lake Roxanne Dam