Snyder Dam; Dan 4 Reservoir Report
Nearby: Lefor Dam; Kenneth 2 Mann Dam
Last Updated: December 14, 2025
Snyder Dam, also known as Dan 4, is a privately owned earth dam located in Stark County, North Dakota.
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Summary
Built in 2007 by the USFWS, the dam serves multiple purposes including fire protection, stock, and small fish pond management. With a height of 13.1 feet and a length of 452 feet, the dam has a storage capacity of 90 acre-feet, with a normal storage level of 21.1 acre-feet.
The dam's primary purpose is fire protection, but it also functions as a water source for livestock and recreational fishing. Despite being classified as low hazard potential, the dam's risk assessment indicates a moderate level of risk, highlighting the importance of regular inspections and maintenance. The dam is regulated by the NDSWC and falls under the jurisdiction of the state of North Dakota, ensuring compliance with safety standards and regulations.
Snyder Dam plays a crucial role in water resource management in the area, providing essential services while also serving as a habitat for local wildlife. Its location on the Heart River-TR stream underscores its importance in the local ecosystem and highlights the need for continued monitoring and risk management measures to ensure its long-term stability and effectiveness.
Year Completed |
2007 |
Dam Length |
452 |
Dam Height |
13.1 |
River Or Stream |
HEART RIVER-TR |
Primary Dam Type |
Earth |
Surface Area |
11.3 |
Nid Storage |
90 |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
13 |
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.
Snyder Dam; Dan 4