Pool No. 19 Reservoir Report
Nearby: Pool No. 20 Eckvoll Wma
Last Updated: December 13, 2025
Pool No.
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Summary
19, located in Thief River Falls, Minnesota, is a federal-owned Earth dam completed in 1962 with a primary purpose of "Other". With a dam height of 11 feet and a length of 1300 feet, this structure provides crucial NID storage of 1215 acre-feet. Despite its low hazard potential and "Not Rated" condition assessment, the dam has not been state-regulated or inspected, raising concerns about its safety and maintenance.
The pool's association with the Thief River-TR stream highlights its significance in water resource management, particularly with a maximum discharge capacity of 50 cubic feet per second. However, the lack of spillway and outlet gate information, along with outdated inspection records, underscores the need for closer monitoring and potential risk assessment. As climate change continues to impact water resources, ensuring the safety and integrity of structures like Pool No. 19 becomes increasingly crucial to protect communities downstream and maintain ecological balance in the region.
With Collin Peterson (D) representing the area in Congress, stakeholders and water resource enthusiasts must advocate for increased regulatory oversight, inspection frequency, and emergency action planning for Pool No. 19. By addressing these gaps in governance and infrastructure, the pool can continue to fulfill its vital role in water storage and flood control while safeguarding the environment and public safety in Marshall County, Minnesota.
Year Completed |
1962 |
Dam Length |
1300 |
Dam Height |
11 |
River Or Stream |
THIEF RIVER-TR |
Primary Dam Type |
Earth |
Nid Storage |
1215 |
Structural Height |
11 |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
11 |
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. 19