Located in Monroe, Wisconsin, Dandy Creek 11 is a gravity dam on the Lemonweir River primarily used for irrigation purposes. Built in 1935, this dam stands at a height of 10 feet and has a storage capacity of 50 acre-feet. With a normal storage capacity of 20 acre-feet and a maximum discharge of 2500 cubic feet per second, Dandy Creek 11 plays a crucial role in water management within the region.

Despite its age, Dandy Creek 11 is in fair condition with a low hazard potential, making it a relatively safe structure. The dam's controlled spillway and inspection frequency of 10 years contribute to its overall safety and effectiveness in water resource management. With state regulation and enforcement in place, the dam ensures the sustainable use of water for irrigation, recreation, and water supply while minimizing risks to nearby communities.

As a key feature in the St. Paul District, Dandy Creek 11 serves as a vital infrastructure for water resource management in the area. With its strategic location and design, the dam continues to play a significant role in supporting agricultural activities and ensuring water availability for various purposes. Climate and water resource enthusiasts can appreciate the importance of Dandy Creek 11 in maintaining a balance between water supply, irrigation needs, and environmental sustainability in the region.