Hille Dam; Doug Reservoir Report
Nearby: Dawson Dam Fish Creek Dam
Last Updated: December 13, 2025
Hille Dam, also known as Doug Dam or Wetland #1, is a privately owned earth dam located in Morton, North Dakota.
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Summary
Built in 1996 by the USFWS, the dam serves multiple purposes including fire protection and creating a small fish pond. With a height of 15.8 feet and a length of 330 feet, the dam has a storage capacity of 74.4 acre-feet and covers a surface area of 6.8 acres.
Managed by the NDSWC, Hille Dam is regulated and inspected by the state of North Dakota to ensure its safety and functionality. The dam's spillway, with a width of 100 feet, is designed as uncontrolled, and the outlet gates consist of a single vertical lift. Despite having a low hazard potential, the dam is considered to have moderate risk according to a rating of 3.
Hille Dam plays a crucial role in water resource management in the area, providing essential services for fire protection and supporting local ecosystems. With its strategic location on the Little Heart River-TR, the dam serves as a valuable asset in maintaining water levels and supporting wildlife habitats in the region.
Year Completed |
1996 |
Dam Length |
330 |
Dam Height |
15.8 |
River Or Stream |
LITTLE HEART RIVER-TR |
Primary Dam Type |
Earth |
Surface Area |
6.8 |
Drainage Area |
2.36 |
Nid Storage |
74.4 |
Outlet Gates |
Vertical Lift - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
16 |
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.
Hille Dam; Doug