Lambs Lake Dam Reservoir Report
Nearby: Niagara Rr Dam #1 Little Goose Dam
Last Updated: December 13, 2025
Lambs Lake Dam, located in Nelson County, North Dakota, is a federal-owned structure managed by the Fish and Wildlife Service.
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Summary
Built in 1930, this Earth-type dam stands at a height of 9 feet and has a length of 692 feet, with a maximum storage capacity of 1155 acre-feet. Primarily serving as a Fish and Wildlife Pond, the dam plays a crucial role in managing water resources and supporting biodiversity in the area.
In 2012, the dam underwent modifications to enhance its hydraulic and structural integrity. It features an uncontrolled spillway with a width of 89 feet and other controlled outlet gates. Despite being classified as having a low hazard potential and a satisfactory condition assessment, the dam is subject to regular inspections and maintenance to ensure its continued safety and functionality. The surrounding area benefits from the dam's moderate risk management measures, which contribute to the overall resilience of the water resource infrastructure.
With its importance in water management and conservation efforts, Lambs Lake Dam stands as a vital asset in the region's ecosystem. As water resource and climate enthusiasts, understanding the role of structures like Lambs Lake Dam is crucial in promoting sustainable practices and safeguarding our natural resources for future generations.
Years Modified |
2012 - Hydraulic, 2012 - Structural |
Year Completed |
1930 |
Dam Length |
692 |
Dam Height |
9 |
River Or Stream |
Tributary to Goose Creek |
Primary Dam Type |
Earth |
Surface Area |
123.4 |
Hydraulic Height |
9 |
Drainage Area |
28.5 |
Nid Storage |
1155 |
Structural Height |
10 |
Outlet Gates |
Other Controlled |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
10 |
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.
Lambs Lake Dam