Hager Dam Reservoir Report
Last Updated: December 13, 2025
Hager Dam, also known as Conklin Dam, is a local government-owned structure in McLean, North Dakota, designed by the Works Progress Administration (WPA) and completed in 1937.
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Summary
This earth dam, standing at a height of 17 feet and a length of 450 feet, serves multiple purposes including fire protection, stock water, and small fish pond creation. Located on the East Branch Douglas Creek, the dam has a storage capacity of 233 acre-feet and a surface area of 62 acres.
The dam is regulated by the North Dakota State Water Commission (NDSWC) and is subject to state permitting, inspection, and enforcement. With a low hazard potential, the dam has undergone a structural modification in 1959. The spillway, of uncontrolled type with a width of 55 feet, helps manage overflow during periods of excess water. Despite its moderate risk assessment rating, the dam's condition remains unrated, with no emergency action plan or designated emergency contacts. Overall, Hager Dam stands as a crucial resource for water management and conservation in the region.
Years Modified |
1959 - Structural |
Year Completed |
1937 |
Dam Length |
450 |
Dam Height |
17 |
River Or Stream |
EAST BRANCH DOUGLAS CREEK |
Primary Dam Type |
Earth |
Surface Area |
62 |
Drainage Area |
9 |
Nid Storage |
233 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
17 |
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.
Hager Dam