Iglehart Dam; Donald Reservoir Report
Nearby: Pease Dam; Bernard Hager Dam
Last Updated: December 14, 2025
Iglehart Dam, located in North Dakota, was completed in 1964 and is owned privately.
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Summary
The dam, designed by USDA NRCS, stands at a height of 12 feet and has a length of 60 feet. Its primary purpose is for recreation, with a storage capacity of 110 acre-feet and a surface area of 7 acres. The dam is primarily made of earth and stone, with a spillway type of uncontrolled. Despite its low hazard potential, the dam is regulated by the North Dakota State Water Commission and undergoes regular inspections.
Situated on the WEST BR DOUGLAS CR river or stream, the Iglehart Dam is in McLean County, North Dakota. It falls under the jurisdiction of the NDSWC and is subject to state permitting, inspection, and enforcement. With a moderate risk assessment rating of 3, the dam has not been rated for its condition assessment, but it is considered to have met guidelines for emergency action preparedness. Although the dam does not have outlet gates or associated structures, it serves as a recreational site for the local community, offering opportunities for outdoor activities and water-based recreation.
The Iglehart Dam is an integral part of the local landscape, providing both practical water storage capabilities and recreational opportunities for visitors. Designed by the Natural Resources Conservation Service, the dam's earth and stone construction allows for a maximum storage capacity of 110 acre-feet. With its uncontrolled spillway and low hazard potential, the dam presents a moderate risk that is managed through state regulations and regular inspections. As a privately-owned structure, the Iglehart Dam contributes to the environmental and social fabric of the region, offering a balance between water resource management and recreational enjoyment.
Year Completed |
1964 |
Dam Length |
60 |
Dam Height |
12 |
River Or Stream |
WEST BR DOUGLAS CR |
Primary Dam Type |
Earth |
Surface Area |
7 |
Drainage Area |
0.33 |
Nid Storage |
110 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
12 |
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.
Area Campgrounds
| Location | Reservations | Toilets |
|---|---|---|
Douglas Creek - COE
|
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Hazen Bay Rec Area Campground
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Lake Sakakawea SP - Fishing Point
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Iglehart Dam; Donald