Mader Pond Reservoir Report
Nearby: Elim Creek Hanson
Last Updated: December 5, 2025
Mader Pond, located in Carlton County, Minnesota, is a privately owned earth dam completed in 1971 with a primary purpose categorized as "Other." The dam stands at 22 feet high and stretches 392 feet in length, holding a maximum storage capacity of 98 acre-feet.
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Summary
With a low hazard potential and fair condition assessment, this structure is regulated by the Minnesota Department of Natural Resources and undergoes regular inspections every eight years.
Situated within the Net River watershed, Mader Pond serves as a crucial water resource for the local community in Holyoke. With a drainage area of 1.1 square miles and a normal storage capacity of 17 acre-feet, the pond plays a role in flood control and water management for the surrounding area. Despite its modest size, the dam is equipped to handle a maximum discharge of 524 cubic feet per second, ensuring the safety and stability of the structure during periods of heavy rainfall.
Managed by private owners, Mader Pond offers a unique opportunity for water resource and climate enthusiasts to explore the intersection of human infrastructure and environmental conservation. With its historical significance dating back to the early 1970s, this earth dam continues to provide valuable insights into sustainable water management practices and the importance of maintaining critical infrastructure in the face of changing climate conditions.
Year Completed |
1971 |
Dam Length |
392 |
Dam Height |
22 |
River Or Stream |
NET RIVER-TR |
Primary Dam Type |
Earth |
Drainage Area |
1.1 |
Nid Storage |
98 |
Structural Height |
17 |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
22 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
St. Louis River At Scanlon
|
517cfs |
Nemadji River Near South Superior
|
93cfs |
St. Croix River Near Danbury
|
1650cfs |
Kettle River Below Sandstone
|
170cfs |
Bois Brule River At Brule
|
183cfs |
Knife River Near Two Harbors
|
9cfs |
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.
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