Soap Creek Watershed Site 90-75 in Selma, Iowa is a vital flood risk reduction structure designed by the USDA NRCS and completed in 2011. This earth dam stands at a height of 30 feet, with a length of 545 feet and a storage capacity of 285 acre-feet. Situated in Wapello County, this watershed site plays a crucial role in protecting the region from potential flooding events, with a low hazard potential and uncontrolled outlet gates.

With a drainage area of 0.82 square miles and a maximum discharge of 375 cubic feet per second, Soap Creek Watershed Site 90-75 offers flood risk reduction benefits while also providing a surface area of 11 acres for water retention. The dam, constructed with stone core and soil foundation, is regulated by the Iowa DNR and meets all state permitting, inspection, and enforcement requirements. Its location in the Tr to Brush Creek tributary ensures a strategic position for managing water resources and climate impacts in the area.

As water resource and climate enthusiasts continue to monitor and assess the effectiveness of Soap Creek Watershed Site 90-75, its importance in flood risk reduction and water management will remain a focal point. With a primary purpose of flood risk reduction, this structure serves as a testament to the collaborative efforts between local government agencies and the USDA NRCS in safeguarding communities against potential water-related disasters. The site's completion and functionality underscore the ongoing commitment to sustainable water resource management practices in Iowa.