Stegner Dam; William 2 Reservoir Report
Last Updated: December 5, 2025
Stegner Dam, also known as William 2, is a private-owned structure located in Bowman, North Dakota.
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Summary
Built in 1973 by the USDA NRCS, this earth-type dam stands at 25 feet in height and stretches 333 feet in length. Primarily used for irrigation purposes, the dam holds a storage capacity of 182 acre-feet, with a normal storage level of 96 acre-feet covering a surface area of 18 acres.
Managed by the North Dakota State Water Commission, Stegner Dam is regulated, permitted, inspected, and enforced by state authorities. The dam boasts a low hazard potential and a moderate risk assessment level, indicating that it poses minimal threat to downstream areas. With an uncontrolled spillway type and a spillway width of 65 feet, the dam ensures the safe discharge of excess water during peak flow periods.
Despite not having a condition rating, emergency action plan, or risk management measures in place, Stegner Dam remains a vital water resource for the local community. Its strategic location on the West Branch Deep Creek-TR river system, under the purview of the Omaha District, underscores its importance in agricultural irrigation and water management efforts in the region.
Year Completed |
1973 |
Dam Length |
333 |
Dam Height |
25 |
River Or Stream |
WEST BRANCH DEEP CREEK-TR |
Primary Dam Type |
Earth |
Surface Area |
18 |
Drainage Area |
2.5 |
Nid Storage |
182 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
25 |
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.
Stegner Dam; William 2