Leonard Dam, located in Johnson County, Iowa, is a privately-owned structure designed by NRCS with a primary purpose of fire protection, stock, or small fish pond. Completed in 2001, this earth dam stands at a height of 30 feet and stretches 491 feet in length, with a storage capacity of 53 acre-feet. Situated on TR- PICAYUNE CREEK, the dam serves as a vital resource for the surrounding area, with a surface area of 4.8 acres and a drainage area of 0.11 square miles.

Despite being classified as having a low hazard potential, Leonard Dam poses a moderate risk according to a recent assessment, indicating a moderate level of risk management measures in place. The dam is regulated by the Iowa Department of Natural Resources and undergoes regular inspections, permitting, and enforcement. While the dam's condition assessment is currently marked as "Not Rated," its emergency action plan status and risk management measures remain unspecified. Overall, Leonard Dam serves as an essential water resource for fire protection and agricultural use in the region, but ongoing monitoring and maintenance are crucial to ensure its continued safety and functionality.