Bejou Wma Reservoir Report
Nearby: Sand Hill River Marsh Creek 3
Last Updated: December 5, 2025
Bejou Wma, also known as Frog Lake, is a state-owned water management area located in Mahnomen, Minnesota.
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Summary
This area is regulated by the Minnesota Department of Natural Resources, with state permitting, inspection, and enforcement in place to ensure the proper management of its resources. The primary purpose of Bejou Wma is to serve as a fish and wildlife pond, providing a habitat for various species in the area.
Constructed in 1983, Bejou Wma features an earth dam with a height of 8 feet and a hydraulic height of 5.7 feet. With a storage capacity of 185 acre-feet, the area covers a surface area of 36 acres and has a drainage area of 2.6 square miles. Despite its low hazard potential, the dam is not currently rated for its condition, and the last inspection took place in April 2011. The area's risk assessment, emergency action plan, and inundation maps are yet to be prepared or updated.
Overall, Bejou Wma offers a valuable resource for water and climate enthusiasts, serving as a vital habitat for fish and wildlife in the region. With its regulated management and focus on conservation, this area provides a glimpse into the importance of sustainable water resource management in Minnesota. Visitors can enjoy the natural beauty of the surroundings while appreciating the efforts made to preserve and protect this unique ecosystem.
Year Completed |
1983 |
Dam Height |
8 |
River Or Stream |
MARSH CREEK-TR |
Primary Dam Type |
Earth |
Surface Area |
36 |
Hydraulic Height |
5.7 |
Drainage Area |
2.6 |
Nid Storage |
185 |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
8 |
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.
Bejou Wma