South Colton Reservoir Report
Nearby: Five Falls Higley
Last Updated: December 18, 2025
Located in South Colton, New York, the South Colton hydroelectric dam on the Raquette River stands as a testament to engineering marvel.
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Summary
Completed in 1954, this gravity dam reaches a height of 42 feet and boasts a storage capacity of 3000 acre-feet, serving the dual purposes of hydroelectric power generation and recreation. The dam's spillway, with a width of 592 feet, is uncontrolled, adding to the allure of this impressive structure.
Managed by the Federal Energy Regulatory Commission, the South Colton dam is subject to regular inspections to ensure its safety and integrity. With a high hazard potential and a moderate risk assessment, emergency action plans and risk management measures are in place to address any potential threats. Despite its age, the dam continues to play a vital role in the region's water resource management and energy production, making it a key feature for water resource and climate enthusiasts to appreciate and study.
As one of the key landmarks in St. Lawrence County, the South Colton dam serves as a symbol of human ingenuity in harnessing the power of water for sustainable development. With its idyllic location on the Raquette River and its significant impact on the local ecosystem, this dam is a focal point for understanding the intricate relationship between water resources, climate, and human activities. As we look towards a more sustainable future, the South Colton dam stands as a reminder of the importance of responsible water resource management and the need to balance development with environmental conservation.
Year Completed |
1954 |
Dam Length |
970 |
Dam Height |
42 |
River Or Stream |
Raquette River |
Primary Dam Type |
Gravity |
Surface Area |
225 |
Drainage Area |
942 |
Nid Storage |
3000 |
Outlet Gates |
Slide (sluice gate) - 1 |
Hazard Potential |
High |
Foundations |
Rock |
Nid Height |
42 |
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.
South Colton