Gs Dd No G-20 (Perdue) is a local government-owned dam located in Perry, Kansas, along the Little Wildhorse Creek. Designed by the USDA NRCS and completed in 1970, this earth dam stands at a height of 28.8 feet and serves primarily for flood risk reduction. With a storage capacity of 88 acre-feet, this structure covers a surface area of 3.2 acres and has a drainage area of 0.32 square miles.

Despite its low hazard potential and moderate risk assessment, Gs Dd No G-20 (Perdue) has not been rated for its condition assessment. The dam features an uncontrolled spillway with a width of 30 feet and does not have any outlet gates. While it has not undergone recent inspections or maintenance activities, this dam still plays a crucial role in managing floodwaters and debris control in the region. Given its location in a flood-prone area, continued monitoring and upkeep of Gs Dd No G-20 (Perdue) are essential to ensure its effectiveness in mitigating flood risks for the community.