Rankins Brothers Dam, located in Jasper County, Iowa, is a privately owned structure designed by USDA NRCS and regulated by the Iowa Department of Natural Resources. Completed in 1976, this earth dam stands at a height of 29 feet and spans 508 feet, with a storage capacity of 127 acre-feet. The dam serves multiple purposes including fire protection, stock, and small fish pond management, making it a valuable resource for the local community.

Despite its significant hazard potential, the dam's condition remains unrated, with no recent inspection data available. The risk assessment for Rankins Brothers Dam is moderate, highlighting the need for ongoing monitoring and maintenance to ensure its continued safety and functionality. With a drainage area of 0.23 square miles and a surface area of 2.1 acres, this dam plays a crucial role in managing water resources in the region and protecting against potential flooding events. Water resource and climate enthusiasts will find Rankins Brothers Dam to be an intriguing case study in dam management and the intersection of infrastructure and environmental stewardship in Iowa.