Hoffman Dam; Ray 1 Reservoir Report
Nearby: Raleigh Dam Nd No Name 061
Last Updated: December 13, 2025
Located in Morton, North Dakota, Hoffman Dam; Ray 1 is a private earth dam designed by USFWS for fire protection, stock, or a small fish pond.
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Summary
Completed in 2010, this dam stands at a height of 9 feet, with a storage capacity of 68 acre-feet and a surface area of 16.1 acres. The primary purpose of the dam is to provide fire protection and water resources for local agricultural needs.
Managed by the North Dakota State Water Commission, Hoffman Dam; Ray 1 is classified as having low hazard potential and a moderate risk assessment. Despite not being rated for condition assessment, the dam is regularly inspected, permitted, and regulated by state authorities to ensure its structural integrity and safety. With a spillway width of 60 feet and uncontrolled spillway type, this dam plays a crucial role in managing water resources in the Dogtooth Creek-TR watershed.
Hoffman Dam; Ray 1 serves as a vital water infrastructure project in North Dakota, contributing to the local ecosystem and agricultural activities. With its strategic location and design, this dam provides essential water storage and fire protection capabilities while maintaining a low hazard potential. As climate change impacts water resources, dams like Hoffman Dam play a crucial role in managing and conserving water for future generations.
Year Completed |
2010 |
Dam Height |
9 |
River Or Stream |
DOGTOOTH CREEK-TR |
Primary Dam Type |
Earth |
Surface Area |
16.1 |
Drainage Area |
1.64 |
Nid Storage |
68 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
9 |
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.
Hoffman Dam; Ray 1