Pool No. 10 Reservoir Report
Nearby: Pool No. 27 Pool No. 11
Last Updated: December 13, 2025
Pool No.
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Summary
10, located in Thief River Falls, Minnesota, is a Federal-owned water resource structure on the Thief River. Built in 1946, this Earth-type dam stands at 9 feet high and stretches 8000 feet in length, with a storage capacity of 8252 acre-feet. While primarily serving purposes other than flood control or irrigation, this dam has a low hazard potential and is currently rated as "Not Rated" in terms of its condition assessment.
Despite its relatively low hazard potential, Pool No. 10 plays a crucial role in managing water resources in the area, with a maximum discharge capacity of 800 cfs. The dam is not regulated or inspected by the state, and there are no associated locks or spillways. Its condition assessment remains "Not Rated," and it undergoes inspections every 8 years to ensure its continued safety and functionality.
Pool No. 10 offers a fascinating glimpse into the intersection of water resource management and climate resilience in Minnesota. While its primary purpose may differ from traditional dams, its presence on the Thief River serves as a vital component of the region's water infrastructure. As water resource and climate enthusiasts continue to monitor and assess the impact of climate change on water systems, structures like Pool No. 10 will play an essential role in ensuring the sustainability and resilience of our water resources for future generations.
Year Completed |
1946 |
Dam Length |
8000 |
Dam Height |
9 |
River Or Stream |
THIEF RIVER |
Primary Dam Type |
Earth |
Nid Storage |
8252 |
Structural Height |
9 |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
9 |
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.
Pool No. 10