Headquarters Reservoir Report
Nearby: Korsness Pool Dewitt Pool
Last Updated: December 5, 2025
Headquarters is a state-regulated fish and wildlife pond located in Ogilvie, Minnesota, along the Groundhouse River West Fork.
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Summary
Owned by the State of Minnesota, this facility covers a surface area of 174 acres with a drainage area of 24.4 square miles. The dam at Headquarters stands at a height of 8 feet, providing a maximum storage capacity of 2,160 acre-feet and a normal storage capacity of 870 acre-feet.
Operated by the Minnesota Department of Natural Resources, Headquarters has a low hazard potential and is currently rated as "Not Rated" in terms of condition assessment. The dam is classified as a buttress core type and has not undergone any modifications since its completion date. While the spillway type and outlet gates are unspecified, the dam's inspection frequency is every 8 years, with the last inspection conducted on June 5, 2019. Overall, Headquarters serves as a vital resource for fish and wildlife management in the region, showcasing the importance of sustainable water resource management practices.
Dam Height |
8 |
River Or Stream |
GROUNDHOUSE RIVER W FORK |
Surface Area |
174 |
Drainage Area |
24.4 |
Nid Storage |
2160 |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
8 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Snake River Near Pine City
|
127cfs |
Kettle River Below Sandstone
|
170cfs |
Mississippi River Near Royalton
|
2290cfs |
Mississippi River At St. Cloud
|
1950cfs |
Mississippi River At Aitkin
|
1010cfs |
Mississippi River At Brainerd
|
972cfs |
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.
Headquarters