Swanson Lake Dam, located in Buchanan, Missouri, was completed in 1920 and serves as a crucial water resource for the area. The dam, primarily used for purposes other than flood control or irrigation, stands at a height of 25 feet and has a maximum storage capacity of 67 acre-feet. It is classified as an Earth dam with a Buttress core type, contributing to its low hazard potential rating.

Situated on TR-PIGEON CREEK, Swanson Lake Dam is owned and operated by a private entity, making it exempt from state regulation and oversight. Despite its age, the dam's condition assessment is currently listed as "Not Rated", highlighting the need for further inspection and maintenance to ensure its long-term stability and safety. With a surface area of 5 acres and a drainage area of 35 acres, the dam plays a vital role in water management and conservation efforts in the region.

As a key feature in the Rock Island District, Swanson Lake Dam serves as a testament to early 20th-century engineering and continues to provide essential water storage and management capabilities for the surrounding community. With its historical significance and ongoing importance in water resource management, Swanson Lake Dam represents a blend of past expertise and modern-day necessity in addressing the challenges of climate change and water security.