Nereson Wma Reservoir Report
Nearby: Ross Twp 7 Thief Lake
Last Updated: December 12, 2025
Nereson Wma, located in Roseau, Minnesota, is a state-regulated water management area with a primary purpose of serving as a fish and wildlife pond.
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Summary
The dam, completed in 1981, is an earth structure with a height of 16 feet and a length of 20,000 feet. With a storage capacity of 5,000 acre-feet and a surface area of 600 acres, Nereson Wma plays a vital role in managing water resources in the area.
The dam on the TWO RIVERS SOUTH BRANCH helps control water flow and provides habitat for various fish and wildlife species. With a low hazard potential and a satisfactory condition assessment, Nereson Wma is well-maintained and monitored. The risk assessment for this water management area is very high (1), indicating the importance of proper management and emergency preparedness to ensure the safety and integrity of the dam and surrounding area. Climate and water resource enthusiasts will appreciate the efforts put into maintaining this essential habitat for wildlife while also managing water resources effectively.
Year Completed |
1981 |
Dam Length |
20000 |
Dam Height |
12 |
River Or Stream |
TWO RIVERS SOUTH BRANCH |
Primary Dam Type |
Earth |
Surface Area |
600 |
Drainage Area |
16 |
Nid Storage |
5000 |
Structural Height |
16 |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
16 |
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.
Area Campgrounds
| Location | Reservations | Toilets |
|---|---|---|
Durgin Memorial Park
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American Legion Park Campground
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Legion Park
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Nereson Wma