Klondike Dam Reservoir Report

Last Updated: December 13, 2025

Klondike Dam, located in Lincoln, South Dakota, is a rockfill dam built in 1984 on the Big Sioux River.


°F

°F

mph

Wind

%

Humidity

Summary

With a height of 7 feet and a storage capacity of 360 acre-feet, this privately owned structure serves as a vital resource for water management in the region. The dam is regulated by the South Dakota Department of Environment and Natural Resources, ensuring that it meets all necessary safety and environmental standards.

Despite its low hazard potential, Klondike Dam plays a crucial role in maintaining water levels and protecting against potential flooding along the Big Sioux River. While the dam's condition assessment remains unrated, its construction and regulatory oversight demonstrate a commitment to safe and efficient water resource management. The dam's location in a relatively remote area further highlights its importance in safeguarding the surrounding community from potential water-related risks.

As a key infrastructure asset in the region, Klondike Dam serves as a testament to the importance of proper water resource management in mitigating climate-related challenges. Its construction and operation reflect a proactive approach to safeguarding against potential water hazards, ensuring the continued availability of water resources for both human consumption and environmental preservation. For water resource and climate enthusiasts, Klondike Dam stands as a symbol of responsible infrastructure development in the face of changing environmental conditions.

Year Completed

1984

Dam Length

150

Dam Height

7

River Or Stream

BIG SIOUX RIVER

Primary Dam Type

Rockfill

Hydraulic Height

7

Nid Storage

360

Hazard Potential

Low

Nid Height

7
       
Seasonal Comparison

Weather Forecast

Dam Data Reference

Condition Assessment

Satisfactory
No 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

High
Dams 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.