Mary's Lake Dam in Eudora, Kansas, stands as a testament to the ingenuity of USDA SCS designers who completed the structure in 1953. The dam, primarily used for recreation, boasts a height of 27 feet and a drainage area of 0.3 square miles, providing storage of up to 32 acre-feet of water in Mary's Lake. The dam's buttress core type and unlisted foundation contribute to its structural integrity, ensuring its hazard potential remains low.

Despite being privately owned, Mary's Lake Dam is not regulated by the state and does not require permits or inspections. The dam's purpose extends beyond recreation to include providing a habitat for fish and wildlife in the area. With its location on the Wakarusa River, the dam serves as a focal point for outdoor enthusiasts seeking a serene escape in Douglas County, Kansas. While the dam's condition is currently not rated, its low hazard potential and historical significance make it a valuable asset in the region.

As a key feature in the local landscape, Mary's Lake Dam continues to attract visitors seeking a tranquil setting for fishing, wildlife observation, and recreational activities. With its rich history and picturesque surroundings, the dam offers a glimpse into the intersection of water resource management and climate adaptation in the heart of Kansas. As water enthusiasts and climate advocates alike appreciate the dam's contributions to the community, Mary's Lake Dam remains a symbol of harmony between human development and natural ecosystems.