Krogman Lawrence #3 Reservoir Report

Last Updated: December 14, 2025

Krogman Lawrence #3 is a privately owned dam located in Mellette, South Dakota, along the TR Little White Offstream.


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Summary

Constructed in 1968, this earth dam stands at a height of 27 feet and has a length of 400 feet, providing a storage capacity of 26 acre-feet. While the dam is regulated by the South Dakota Department of Environment and Natural Resources (DENR), it has not been rated for its condition assessment, and its hazard potential is considered low.

Despite its low hazard potential, Krogman Lawrence #3 plays a crucial role in water resource management in the region, with a maximum discharge capacity of 312 cubic feet per second. The dam is not currently under the jurisdiction of a federal agency, and its emergency action plan and risk assessment are yet to be completed. With its location in a state regulated area and its compliance with state permitting, inspection, and enforcement requirements, Krogman Lawrence #3 serves as a vital infrastructure for water control and conservation in the area.

As a key structure in the St. Paul District, Krogman Lawrence #3 contributes to the overall water management efforts in South Dakota. While its condition assessment and emergency preparedness are areas for potential improvement, the dam's low hazard potential and compliance with state regulations make it a valuable asset for water resource and climate enthusiasts interested in sustainable water management practices.

Year Completed

1968

Dam Length

400

Dam Height

27

River Or Stream

TR LITTLE WHITE OFFSTREAM

Primary Dam Type

Earth

Hydraulic Height

27

Nid Storage

26

Hazard Potential

Low

Nid Height

27
       
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.