Senn Dam; Chuck Reservoir Report
Nearby: Friedt Dam; Wm & Luella Steiner Dam
Last Updated: December 8, 2025
Senn Dam, also known as Wetland #1, is a private fish and wildlife pond located in Hettinger, North Dakota.
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Summary
Built in 1998 by the USFWS, this earth dam stands at a height of 8.7 feet and has a length of 534 feet, with a storage capacity of 60.9 acre-feet and a surface area of 10 acres. The dam serves as a crucial habitat for various wildlife species in the area, with a primary purpose of supporting fish and wildlife.
Managed by the North Dakota State Water Commission, Senn Dam is regulated by the state and undergoes regular inspections to ensure its structural integrity and safety. With a low hazard potential and a moderate risk assessment ranking, the dam is equipped with vertical lift outlet gates and an uncontrolled spillway with a width of 40 feet. Despite its condition being not rated, the dam continues to provide valuable ecosystem services and recreational opportunities for residents in the region.
Located on Beaver Creek-TR, Senn Dam plays a vital role in supporting the local ecosystem and providing a source of water for wildlife. With its serene surroundings and diverse wildlife, this dam serves as a reminder of the importance of water resource management and climate resilience in sustaining healthy habitats for future generations to enjoy.
Year Completed |
1998 |
Dam Length |
534 |
Dam Height |
8.7 |
River Or Stream |
BEAVER CREEK-TR |
Primary Dam Type |
Earth |
Surface Area |
10 |
Drainage Area |
2.28 |
Nid Storage |
60.9 |
Outlet Gates |
Vertical Lift |
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.
Senn Dam; Chuck