Thompson Wetland in Lawndall, Minnesota is a privately owned wetland with a primary purpose of flood risk reduction. Constructed in 1997 by NRCS, this earth dam stands at 12 feet tall with a structural height of 14 feet and a length of 230 feet. The wetland has a maximum storage capacity of 122 acre-feet and a normal storage of 69 acre-feet, covering a surface area of 17 acres and draining a 2 square mile watershed.

Situated along the Buffalo River in Otter Tail County, Thompson Wetland plays a crucial role in mitigating flood risks in the region. With the dam's low hazard potential and satisfactory condition assessment as of August 2017, it serves as a valuable asset for the community. The wetland's location and design highlight its importance in managing water resources and climate-related challenges, showcasing the collaborative efforts between private owners and state regulatory agencies in safeguarding the area's ecological and hydrological well-being.

Thompson Wetland's presence underscores the significance of wetlands in addressing flood risks and enhancing water resource management. Its strategic location and design reflect a commitment to sustainable practices and environmental stewardship. As enthusiasts for water resources and climate solutions, Thompson Wetland serves as a beacon of resilience and innovation in navigating the challenges posed by changing weather patterns and natural hazards in Minnesota's diverse landscape.