Hanson Dam; Milo Reservoir Report
Nearby: Atwood Dam Jasper Dam; Del
Last Updated: December 13, 2025
Hanson Dam; Milo, located in Kidder, North Dakota, is a private fish and wildlife pond dam designed by USFWS and completed in 1992.
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Summary
This earth dam stands at a height of 8.9 feet and has a length of 185 feet, providing a storage capacity of 67 acre-feet. With a primary purpose of serving as a fish and wildlife pond, the dam is state-regulated by NDSWC and meets inspection, permitting, and enforcement requirements in North Dakota.
The dam's spillway type is uncontrolled, with a width of 50 feet, and it has a low hazard potential rating. The surrounding area covers 12 acres with a drainage area of 0.57 square miles. Despite being classified as not rated in terms of condition assessment, the dam is equipped to manage moderate risk levels, with no associated outlet gates. The overall risk assessment for Hanson Dam; Milo is considered to be moderate, reflecting the importance of maintaining its structural integrity for the surrounding ecosystem and water resource management in the region.
Hanson Dam; Milo serves as a vital component in supporting fish and wildlife habitats in North Dakota, particularly along the Missouri-TR river system. With a focus on conservation and environmental stewardship, this dam underscores the importance of sustainable water resource management practices. As climate change continues to impact water availability and quality, the maintenance and regulation of structures like Hanson Dam; Milo are crucial for ensuring the resilience of ecosystems and the communities that depend on them in the face of changing environmental conditions.
Year Completed |
1992 |
Dam Length |
185 |
Dam Height |
8.9 |
River Or Stream |
MISSOURI-TR |
Primary Dam Type |
Earth |
Surface Area |
12 |
Drainage Area |
0.57 |
Nid Storage |
67 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
9 |
Seasonal Comparison
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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.
Hanson Dam; Milo