Located in Lamberton, Minnesota, the Cottonwood River Lamberton dam is a concrete structure with a primary purpose of "Other". Built in 1936 by the Works Progress Administration (WPA), this dam stands at a height of 12 feet and has a storage capacity of 132 acre-feet. Despite its low hazard potential, the dam is state-regulated by the Minnesota Department of Natural Resources, with regular inspections and enforcement measures in place to ensure its safety and integrity.

The dam, situated on the Cottonwood River, serves as an essential water resource for the surrounding area, providing storage for irrigation, recreation, and flood control. With a drainage area of 442 square miles and a surface area of 33 acres, the dam plays a crucial role in managing water flow and storage in the region. While the dam has not been rated for its condition, it is important to note that it meets regulatory standards and is inspected every 8 years to maintain its functionality and safety.

As climate change continues to impact water resources and ecosystems, the Cottonwood River Lamberton dam serves as a vital infrastructure for managing water levels and protecting communities from potential flooding. With its state-regulated status and low hazard potential, the dam exemplifies the importance of responsible water resource management in the face of changing environmental conditions.