Twp Road 73 is a crucial infrastructure project located in Lyon, Minnesota, designed for flood risk reduction along the Cottonwood River. Completed in 1999, this earth dam stands at a height of 21 feet and spans 200 feet in length, with a storage capacity of 151 acre-feet. Managed by the local government, the dam is regulated and inspected by the Minnesota Department of Natural Resources, ensuring its structural integrity and effectiveness in flood control.

Despite its low hazard potential and satisfactory condition assessment, Twp Road 73 poses a moderate risk level according to the data provided. With a spillway width of 2 feet and a maximum discharge of 67 cubic feet per second, the dam is equipped to handle excess water during heavy rainfall events. The last inspection in 2015 deemed the structure to be in good working order, with a scheduled inspection frequency of every 8 years to monitor its performance over time.

As a vital component in the flood risk reduction efforts in the region, Twp Road 73 serves as a key asset in protecting nearby communities from potential water-related disasters. With its strategic location and effective design, this earth dam stands as a testament to the importance of proactive water resource management in mitigating the impacts of climate change on local ecosystems and infrastructure.