Klondike Mill Dam Reservoir Report
Nearby: Klondike Dam Lake Pahoja Dam
Last Updated: December 12, 2025
Located in Lyon County, Iowa, the Klondike Mill Dam stands as a testament to the importance of water resources and the environment.
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Summary
This privately-owned dam on the Big Sioux River serves primarily for recreational purposes, offering a tranquil setting for outdoor enthusiasts to enjoy. With a height of 12 feet and a length of 175 feet, the dam provides a storage capacity of 289 acre-feet, contributing to the overall water management of the area.
Managed by the Iowa Department of Natural Resources, the Klondike Mill Dam is regulated, inspected, and enforced to ensure its safety and compliance with state standards. Despite its low hazard potential, the dam's condition assessment remains unrated, emphasizing the need for continued monitoring and maintenance. As an integral part of the local landscape, the dam symbolizes the intersection of human intervention and natural ecosystems, highlighting the delicate balance necessary for sustainable water resource management in the face of climate change challenges.
For water resource and climate enthusiasts, the Klondike Mill Dam serves as a focal point for understanding the complexities of dam infrastructure and its impact on the surrounding environment. With its peaceful setting along the Big Sioux River, the dam invites visitors to appreciate the beauty of water resources while also raising awareness about the importance of responsible stewardship. As efforts continue to assess and manage the risks associated with the dam, it remains a vital component of the region's water infrastructure, reflecting the interconnectedness of water resources, climate, and human activities in shaping the landscape for future generations.
Dam Length |
175 |
Dam Height |
12 |
River Or Stream |
Big Sioux River |
Nid Storage |
289 |
Hazard Potential |
Low |
Nid Height |
12 |
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.
Klondike Mill Dam