Obach Dam; Mike 2 Reservoir Report
Last Updated: December 6, 2025
Located in Stark County, North Dakota, Obach Dam; Mike 2, also known as Wetland #2, was completed in 2001 by the US Fish and Wildlife Service.
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Summary
This private dam serves as a Fish and Wildlife Pond, with a primary purpose of providing habitat for local wildlife. Standing at a height of 8.4 feet and a length of 542 feet, the dam has a storage capacity of 59.6 acre-feet and covers a surface area of 7.5 acres.
Managed by the North Dakota State Water Commission, Obach Dam is regulated and inspected to ensure its structural integrity and environmental impact. Despite its low hazard potential, the dam poses a moderate risk and is classified as having a risk level of 3. While it currently does not have an Emergency Action Plan in place, the dam is monitored regularly to mitigate any potential threats or hazards. With its uncontrolled spillway and earth construction, Obach Dam plays a crucial role in maintaining the ecological balance of the North Creek-TR watershed.
Enthusiasts of water resources and climate will find Obach Dam; Mike 2 to be a fascinating case study of how man-made structures can support and enhance natural habitats. As a key element in the local ecosystem, this dam showcases the importance of sustainable water management practices in preserving the biodiversity of the region. With its unique design and purpose, Obach Dam stands as a testament to the harmonious coexistence of human development and environmental conservation.
Year Completed |
2001 |
Dam Length |
542 |
Dam Height |
8.4 |
River Or Stream |
NORTH CREEK-TR |
Primary Dam Type |
Earth |
Surface Area |
7.5 |
Drainage Area |
1.01 |
Nid Storage |
59.6 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
8 |
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.
Obach Dam; Mike 2