Fish Hatchery Reservoir Report
Nearby: Minocqua Pickerel Canal
Last Updated: December 8, 2025
Fish Hatchery, located in Oneida, Wisconsin, is a state-owned facility regulated by the Wisconsin Department of Natural Resources.
°F
°F
mph
Wind
%
Humidity
Summary
This gravity dam, completed in 1955, serves a primary purpose beyond water resource management, focusing on recreation and supporting the local ecosystem. With a height of 7.2 feet and a storage capacity of 800 acre-feet, the dam on the Minocqua Thoroughfare is an essential component in maintaining water levels and flow in the area.
Despite its vital role, Fish Hatchery faces significant hazard potential and poor condition assessment, highlighting the urgent need for maintenance and upgrades. The dam's inspection frequency of every three years and the last assessment in August 2020 underscore the ongoing monitoring efforts to ensure public safety and environmental protection. With a very high risk rating and limited risk management measures in place, stakeholders must prioritize addressing the dam's vulnerabilities to mitigate potential hazards and safeguard the surrounding community.
In light of its critical importance and the pressing need for improvements, Fish Hatchery stands as a valuable yet vulnerable asset in the water resource infrastructure of Wisconsin. As climate change continues to impact water resources and ecosystems, investing in the resilience and sustainability of facilities like Fish Hatchery is essential for the long-term viability of the region's water management strategies and environmental conservation efforts.
Year Completed |
1955 |
Dam Length |
180 |
Dam Height |
7.2 |
River Or Stream |
MINOCQUA THOROUGHFARE |
Primary Dam Type |
Gravity |
Surface Area |
159 |
Hydraulic Height |
5 |
Drainage Area |
32 |
Nid Storage |
800 |
Structural Height |
7.2 |
Hazard Potential |
Significant |
Nid Height |
7 |
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.
Fish Hatchery
Minocqua Thoroughfare -- Access