SNOFLO



GANT CREEK WATERSHED SITE A-7

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


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Located in Sioux City, Iowa, Gant Creek Watershed Site A-7 is a local government-owned dam designed by USDA NRCS with a primary purpose of fire protection, stock, or small fish pond. Completed in 1969, this earth dam stands at a height of 37 feet and spans a length of 526 feet, with a storage capacity of 94 acre-feet and a surface area of 5.4 acres. Situated on the TR-Big Sioux River, this dam is regulated by the Iowa DNR and is used for flood risk reduction in addition to its primary purposes.

With a low hazard potential and a moderate risk assessment rating, Gant Creek Watershed Site A-7 is an essential infrastructure for water resource management in Plymouth County, Iowa. Despite not having a condition assessment rating, this dam serves as a crucial component of the local ecosystem and contributes to the overall resilience of the region. While there are no associated structures or outlet gates, the dam's presence plays a vital role in maintaining water quality and providing essential services to the surrounding community.

As water resource and climate enthusiasts, the significance of Gant Creek Watershed Site A-7 lies in its multifaceted purpose and its contribution to both water management and environmental protection efforts. With the potential for future modifications or enhancements to further improve its functionality, this dam stands as a testament to the importance of sustainable water infrastructure in the face of changing climate conditions. As stewards of our water resources, it is imperative to continue monitoring and maintaining structures like Gant Creek Watershed Site A-7 to ensure the long-term safety and well-being of our communities.

Year_Completed 1969
Dam_Height 37
River_Or_Stream TR-BIG SIOUX RIVER
Dam_Length 526
Primary_Dam_Type Earth
Surface_Area 5.4
Drainage_Area 0.45
Nid_Storage 94
Hazard_Potential Low
Foundations Soil
Nid_Height 37
       

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