Krogh Dam; Clarence 4 Reservoir Report
Last Updated: December 6, 2025
Krogh Dam, also known as Clarence 4, is a private-owned Earth dam located in Hettinger, North Dakota.
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Summary
Constructed in 1996 by the USFWS, this dam serves as a Fish and Wildlife Pond, providing essential habitat for aquatic life in the area. With a height of 8.8 feet and a length of 318 feet, Krogh Dam has a maximum storage capacity of 80.4 acre-feet and a normal storage capacity of 12.4 acre-feet.
The dam is regulated by the NDSWC and is subject to state permitting, inspection, and enforcement. Despite being classified as having a low hazard potential, Krogh Dam is considered to have a moderate risk level. It has an uncontrolled spillway with a width of 55 feet and is situated on Indian Creek-TR. Although the dam has not been rated for its condition, it is not currently deemed to pose a significant threat.
Overall, Krogh Dam plays a vital role in the local ecosystem by providing a suitable environment for fish and wildlife. Despite its moderate risk level, the dam is well-maintained and closely monitored to ensure the safety of the surrounding community and the integrity of the structure. Its presence contributes to the conservation efforts in the area and serves as a valuable resource for water and climate enthusiasts.
Year Completed |
1996 |
Dam Length |
318 |
Dam Height |
8.8 |
River Or Stream |
INDIAN CREEK-TR |
Primary Dam Type |
Earth |
Surface Area |
9.4 |
Drainage Area |
3.55 |
Nid Storage |
80.4 |
Outlet Gates |
None |
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.
Krogh Dam; Clarence 4