Soap Creek Watershed Site 90-91 is a vital water resource located in Wapello, Iowa, specifically in the city of ELDON. This site, managed by the USDA NRCS, serves multiple purposes including fire protection, stock, and small fish pond, as well as flood risk reduction. The dam, completed in 1994, stands at a height of 28 feet and has a storage capacity of 105 acre-feet with a surface area of 4.6 acres and a drainage area of 0.34 square miles.

This watershed site plays a crucial role in maintaining water quality and quantity in the region, with the dam constructed primarily for fire protection and agricultural purposes. Managed by local government and regulated by the Iowa DNR, the site has a low hazard potential and a moderate risk level. While the condition assessment is not rated, the dam has not experienced any significant modifications since its completion, providing a stable and reliable water management system for the community.

With a focus on environmental sustainability and water resource management, Soap Creek Watershed Site 90-91 stands as a testament to collaborative efforts between government agencies and conservationists. The site's strategic location along TR-Little Soap Creek contributes to the overall water flow and flood risk reduction in the area. As climate change continues to impact water resources, the maintenance and upkeep of such sites are essential to ensure the long-term resilience of the watershed and its surrounding ecosystems.