Warren Diversion Reservoir Report
Nearby: Mccrea Twp 12 Warren Storage
Last Updated: December 5, 2025
Warren Diversion, also known as Snake River, is a local government-owned structure in Warren, Minnesota, designed by the USDA NRCS to reduce flood risk in the area.
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Summary
Completed in 2003, this buttress dam stands at 30 feet high and spans 4000 feet along the Snake River. With a storage capacity of 2000 acre-feet and a normal storage level of 15 feet, the dam plays a crucial role in mitigating the impact of high water levels in the region.
Managed by the Minnesota Department of Natural Resources, the Warren Diversion is regulated, inspected, and enforced to ensure its structural integrity and functionality. Its controlled spillway, slide gates, and satisfactory condition assessment contribute to its significant hazard potential rating and very high risk assessment score. In the event of an emergency, the dam's emergency action plan and inundation maps will guide appropriate responses and measures to protect the surrounding area from potential risks.
As a key component in the flood risk reduction strategy for the Snake River, Warren Diversion serves as a vital infrastructure for water resource management in Marshall County, Minnesota. Its strategic location, efficient design, and adherence to regulatory standards demonstrate a commitment to safeguarding the community and environment from the adverse impacts of extreme weather events and water-related disasters.
Year Completed |
2003 |
Dam Length |
4000 |
Dam Height |
26 |
River Or Stream |
SNAKE RIVER |
Primary Dam Type |
Buttress |
Surface Area |
5 |
Drainage Area |
175 |
Nid Storage |
2000 |
Structural Height |
30 |
Outlet Gates |
Slide (sluice gate) |
Hazard Potential |
Significant |
Foundations |
Unlisted/Unknown |
Nid Height |
30 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Middle River At Argyle
|
10cfs |
Red River Of The North At Grand Forks
|
1510cfs |
Thief River Near Thief River Falls
|
45cfs |
Red Lake River At Fisher
|
596cfs |
Forest River At Minto
|
44cfs |
Red Lake River At Crookston
|
403cfs |
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.
Warren Diversion