Frelk Reservoir Report
Nearby: Beaver Creek Skoyen
Last Updated: December 13, 2025
Nestled in Osseo, Wisconsin, the Frelk dam stands as a testament to USDA NRCS's commitment to flood risk reduction.
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Summary
Completed in 1970, this earth dam spans 520 feet and reaches a height of 17 feet, providing a storage capacity of 86 acre-feet. Serving multiple purposes including flood risk reduction, fish and wildlife habitat, and recreational opportunities, Frelk dam plays a crucial role in water resource management in the region.
With a low hazard potential and a moderate risk rating, Frelk dam is a vital piece of infrastructure in the Detroit District. Despite its age, the dam's condition assessment is not available, highlighting the need for regular inspections and maintenance. Supported by Natural Resources Conservation Service funding, the dam continues to serve the community by reducing flood risks and providing essential water storage for the area.
As climate change poses increasing challenges to water resource management, Frelk dam remains a critical asset in safeguarding the surrounding area from potential flooding events. With its uncontrolled spillway and uncontrolled outlet gates, the dam's design reflects a balance between flood protection and ecological considerations. As water resource and climate enthusiasts, Frelk dam serves as a reminder of the importance of sustainable water management practices in the face of changing environmental conditions.
Year Completed |
1970 |
Dam Length |
520 |
Dam Height |
17 |
River Or Stream |
Tr So. Buffalo River |
Primary Dam Type |
Earth |
Surface Area |
4 |
Drainage Area |
1.84 |
Nid Storage |
86 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Low |
Nid Height |
17 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Black River Ds St Hwy 54 @ Black River Falls
|
514cfs |
Black River At Neillsville
|
193cfs |
Trempealeau River At Arcadia
|
400cfs |
Chippewa River At Chippewa Falls
|
1440cfs |
Black River Near Galesville
|
862cfs |
Trempealeau River At Dodge
|
953cfs |
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.
Frelk