Amiret 33 & Monroe 4 is a dam located in Lyon County, Minnesota, along the Cottonwood River. Owned by the local government, this dam stands at a height of 15 feet and has a length of 380 feet. The dam has a storage capacity of 121 acre-feet and serves as a roadway retention structure. It is regulated by the Minnesota Department of Natural Resources and undergoes regular inspections to ensure its safety and compliance with state regulations.

The structure is classified as a Buttress dam with an unlisted/unknown foundation type. Despite its low hazard potential, the dam's condition assessment is currently listed as "Not Rated" as of the last inspection in April 2019. Emergency action plans and risk assessment measures for the dam have not been updated or prepared, highlighting the need for continued monitoring and evaluation of the structure's safety and functionality. With its location in a critical watershed area, the Amiret 33 & Monroe 4 dam plays a crucial role in water resource management and flood control efforts in the region.

Water resource and climate enthusiasts can appreciate the significance of the Amiret 33 & Monroe 4 dam in Lyon County, Minnesota. As a key infrastructure owned and regulated by the local government, this structure helps to manage water flow along the Cottonwood River and provides important retention functions for surrounding roadways. With a storage capacity of 121 acre-feet, the dam plays a vital role in flood control and water resource management in the area. Continued monitoring and inspection of the dam will be essential to ensure its safety and effectiveness in the face of changing climate patterns and water resource demands.