Lake Pahoja Dam Reservoir Report
Nearby: Klondike Mill Dam Klondike Dam
Last Updated: December 13, 2025
Lake Pahoja Dam in Lyon County, Iowa, is a significant earth dam completed in 1974 by the USDA NRCS for fire protection, stock, and small fish pond purposes.
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Summary
With a structural height of 50 feet and a length of 1305 feet, the dam holds a maximum storage capacity of 2283 acre-feet and covers a surface area of 71.5 acres. The dam is regulated and inspected by the Iowa Department of Natural Resources, ensuring its safety and compliance with state regulations.
Situated on TR-Klondike Creek, the Lake Pahoja Dam poses a moderate risk level, with a satisfactory condition assessment as of June 2016. The dam's hazard potential is classified as significant, highlighting the importance of regular inspections and maintenance to prevent any potential risks. Despite its uncontrolled spillway type and moderate risk assessment, the dam serves as a crucial resource for fire protection, stock, and recreational purposes, contributing to the local community's water supply and ecosystem.
The presence of Lake Pahoja Dam in Canton, SD, underscores the importance of sustainable water resource management and climate resilience. As a key infrastructure owned by the local government and designed by the USDA NRCS, the dam plays a vital role in water storage, flood control, and recreational activities in the region. By adhering to state regulations and conducting regular inspections, Lake Pahoja Dam stands as a testament to effective dam engineering and management practices in ensuring water security and environmental sustainability.
Year Completed |
1974 |
Dam Length |
1305 |
Dam Height |
50 |
River Or Stream |
TR-KLONDIKE CREEK |
Primary Dam Type |
Earth |
Surface Area |
71.5 |
Drainage Area |
6.09 |
Nid Storage |
2283 |
Hazard Potential |
Significant |
Foundations |
Soil |
Nid Height |
50 |
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.
Lake Pahoja Dam