SNOFLO
 



RALSTON SUBWATERSHED SITE 2-2

RESERVOIR LEVELS
Soil Dam Tr-Little Sioux River
April 26, 2025


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Ralston Subwatershed Site 2-2, located in Washta, Iowa, is a crucial water resource managed by the Local Government and regulated by the Iowa Department of Natural Resources. This site, designed by the USDA NRCS, serves multiple purposes including fire protection, stock, small fish pond, and flood risk reduction. The primary dam type is earth, with a height of 43 feet and a length of 412 feet, completed in 1969.

With a storage capacity of 83 acre-feet, Ralston Subwatershed Site 2-2 covers a surface area of 3 acres and drains a 0.34 square mile drainage area into the TR-Little Sioux River. The hazard potential of this site is rated as low, with a moderate risk level of 3. While the condition assessment is not rated and the emergency action plan status is unknown, this site plays a significant role in water resource management and protection in Cherokee County, Iowa.

Overall, Ralston Subwatershed Site 2-2 stands as a vital infrastructure for water management, flood risk reduction, and environmental conservation in the region. Its strategic location, low hazard potential, and multiple purposes make it a crucial asset for ensuring water security, wildlife habitat preservation, and community safety in the surrounding area.

Year_Completed 1969
Dam_Height 43
River_Or_Stream TR-LITTLE SIOUX RIVER
Dam_Length 412
Primary_Dam_Type Earth
Surface_Area 3
Drainage_Area 0.34
Nid_Storage 83
Hazard_Potential Low
Foundations Soil
Nid_Height 43
       

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