Deer River Flow Dam Reservoir Report
Nearby: Lake Florence Dam Twin Ponds Dam
Last Updated: December 16, 2025
Deer River Flow Dam, located in St Regis Falls, New York, is a masonry dam completed in 1904 for recreational purposes along the Deer River.
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Summary
With a height of 10 feet and a length of 300 feet, the dam provides a storage capacity of 1344 acre-feet and covers a surface area of 403 acres. The dam is regulated and inspected by the New York State Department of Environmental Conservation, ensuring its safety and compliance with state regulations.
The dam features an uncontrolled spillway with a width of 33 feet, and is classified as having a low hazard potential. While the condition of the dam is currently not rated, it poses a moderate risk based on the available data. The last inspection date was in May 2016, indicating the need for regular monitoring and maintenance to ensure the safety and integrity of the structure. Despite its age, Deer River Flow Dam continues to provide recreational opportunities and water resource management in the region.
Overall, Deer River Flow Dam serves as a vital structure for recreation and water management in the area, showcasing the importance of responsible dam operation and maintenance. With its historical significance and ongoing regulatory oversight, the dam remains a key feature along the Deer River, contributing to the local ecosystem and providing opportunities for outdoor enthusiasts to enjoy the surrounding natural beauty.
Year Completed |
1904 |
Dam Length |
300 |
Dam Height |
10 |
River Or Stream |
DEER RIVER |
Primary Dam Type |
Masonry |
Surface Area |
403 |
Drainage Area |
28.3 |
Nid Storage |
1344 |
Hazard Potential |
Low |
Nid Height |
10 |
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.
Deer River Flow Dam