SNOFLO
 


LEOLA

RESERVOIR LEVELS
Soil Dam Tr-Willow Creek
May 12, 2025


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Located in McPherson, South Dakota, the Leola dam, also known as Lake Lunkquist, was completed in 1935 under the Works Progress Administration (WPA). This state-regulated earth dam stands at a height of 12 feet and stretches 850 feet in length, with a maximum storage capacity of 245 acre-feet. Fed by the TR-WILLOW CREEK river/stream, the dam serves a primary purpose not specified in the data, but its low hazard potential and moderate risk assessment suggest it plays a crucial role in water resource management for the region.

Maintained by the South Dakota Department of Agriculture and Natural Resources (DANR), Leola dam has a spillway width of 24 feet and a maximum discharge capacity of 480 cubic feet per second. Although its hazard potential is rated low, the dam's risk assessment is deemed moderate, indicating the need for ongoing monitoring and management. The dam's condition assessment is currently listed as "Not Rated," with the last inspection conducted in November 2019, showcasing the importance of regular infrastructure assessments to ensure its structural integrity and public safety.

Represented by Dusty Johnson (R) in Congress, the Leola dam remains an essential component of the local water infrastructure, providing critical flood control and water storage capabilities. With state oversight, including permitting, inspection, and enforcement mechanisms in place, the dam serves as a vital resource for the community while requiring continued diligence to mitigate potential risks and ensure its long-term functionality in the face of evolving climate conditions.

Year_Completed 1935
Dam_Height 12
River_Or_Stream TR-WILLOW CREEK
Dam_Length 850
Primary_Dam_Type Earth
Hydraulic_Height 12
Nid_Storage 245
Outlet_Gates None
Hazard_Potential Low
Foundations Soil
Nid_Height 12
       

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