Nesheim Dam; Mark 1 Reservoir Report
Nearby: Nesheim Dam; Mark 2 Horst Dam; Kelly
Last Updated: December 13, 2025
Nesheim Dam; Mark 1, also known as Wetland #1, is a private-owned earth dam located in Mountrail, North Dakota.
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Summary
Built in 2001 and designed by USFWS, this dam serves as a Fish and Wildlife Pond with a storage capacity of 94.9 acre-feet and a surface area of 24.6 acres. It stands at a height of 6.2 feet and has a length of 60 feet, providing essential habitat for various aquatic species in the area.
Managed by the North Dakota State Water Commission (NDSWC), Nesheim Dam is regulated and inspected by the state agency to ensure its safety and compliance with regulations. With a low hazard potential and a moderate risk assessment rating, the dam plays a crucial role in managing water resources in the region. The spillway, with a width of 26 feet, is uncontrolled, and the dam is primarily constructed with earth and stone materials.
Despite not being condition-rated, Nesheim Dam; Mark 1 remains a vital asset for the local ecosystem and water management efforts. As climate change continues to impact water resources, the maintenance and monitoring of dams like Nesheim Dam are essential to ensure the resilience and sustainability of the surrounding environment.
Year Completed |
2001 |
Dam Length |
60 |
Dam Height |
6.2 |
River Or Stream |
SHELL CREEK-TR |
Primary Dam Type |
Earth |
Surface Area |
24.6 |
Drainage Area |
1.21 |
Nid Storage |
94.9 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
6 |
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.
Nesheim Dam; Mark 1