Steffan Bros Dam 1 Reservoir Report
Last Updated: December 6, 2025
Steffan Bros Dam 1, also known as Wetland 1, is a privately owned earth dam located in Dunn County, North Dakota.
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Summary
Built in 1993 by the USFWS, this dam serves multiple purposes including fire protection, stock, and small fish pond management. The dam has a height of 9.8 feet and a storage capacity of 57.6 acre-feet, with a normal storage level of 17.7 acre-feet. It is situated on Spring Creek and is regulated by the North Dakota State Water Commission.
Despite its low hazard potential, Steffan Bros Dam 1 plays a crucial role in managing water resources in the area. The dam has an uncontrolled spillway with a width of 60 feet and is equipped with a vertical lift outlet gate. With a drainage area of 1.39 square miles, this dam helps in regulating water flow and ensuring the availability of water for various purposes.
While the dam's condition assessment is currently not rated, it is subject to regular inspections by the NDSWC to ensure its structural integrity and functionality. With a moderate risk assessment score of 3, efforts are being made to implement risk management measures to mitigate any potential hazards associated with the dam. Steffan Bros Dam 1 stands as a vital infrastructure for water resource management and climate resilience in the region.
Year Completed |
1993 |
Dam Height |
9.8 |
River Or Stream |
SPRING CREEK |
Primary Dam Type |
Earth |
Surface Area |
6.7 |
Drainage Area |
1.39 |
Nid Storage |
57.6 |
Outlet Gates |
Vertical Lift - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
10 |
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.
Steffan Bros Dam 1