Tewaukon Pool 7a Dam Reservoir Report
Nearby: Tewaukon Ws-T-7 Tewaukon Pool 8 Dam
Last Updated: December 13, 2025
Tewaukon Pool 7a Dam, located in Sargent County, North Dakota, is a federally-owned structure managed by the US Fish and Wildlife Service.
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Summary
Completed in 1960, this earth dam stands at a height of 7 feet and serves primarily as a fish and wildlife pond along the Wild Rice River. With a maximum storage capacity of 295 acre-feet and a normal storage level of 77 acre-feet, the dam covers a surface area of 52 acres and has a drainage area of 0.18 square miles.
The dam's spillway, with a controlled design and a width of 9 feet, helps regulate water flow and prevent overflow during heavy rains or high water levels. Despite its low hazard potential and satisfactory condition assessment as of October 2020, the dam is subject to regular inspections by the Fish and Wildlife Service to ensure its continued safety and functionality. With a very high risk assessment rating of 1, the dam's risk management measures are crucial in mitigating potential threats and safeguarding the surrounding environment and communities.
Overall, Tewaukon Pool 7a Dam plays a vital role in supporting fish and wildlife habitats in the area, while also serving as a key infrastructure for water resource management along the Wild Rice River. As climate change continues to impact water availability and quality, the importance of maintaining and monitoring dams like Tewaukon Pool 7a Dam becomes increasingly significant for ensuring sustainable water use and conservation practices in the region.
Year Completed |
1960 |
Dam Length |
950 |
Dam Height |
7 |
River Or Stream |
Wild Rice River |
Primary Dam Type |
Earth |
Surface Area |
52 |
Hydraulic Height |
4 |
Drainage Area |
0.18 |
Nid Storage |
295 |
Structural Height |
7 |
Outlet Gates |
Other Controlled |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
7 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Wild Rice River Nr Rutland
|
21cfs |
Sheyenne River At Lisbon
|
222cfs |
Bear Creek Nr Oakes
|
5cfs |
James River At Nd-Sd State Line
|
194cfs |
Little Minnesota River Near Peever
|
27cfs |
Antelope Creek At Dwight
|
25cfs |
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.
Tewaukon Pool 7a Dam