Cyreus Peterson is a private earth dam located in Richland, Wisconsin, with a primary purpose of recreation. Built in 1964 by the USDA NRCS, this dam stands at 21 feet tall and stretches 243 feet in length, with a storage capacity of 90 acre-feet. The dam is situated on an unnamed river or stream in the St. Paul District, and its maximum discharge capacity is 36 cubic feet per second.

Despite its low hazard potential, Cyreus Peterson poses a moderate risk (rated at 3) due to its lack of available condition assessment data and emergency action plan. The dam features an uncontrolled spillway and outlet gates, with a spillway width of 18 feet. The site has not undergone recent inspections, with an anticipated frequency of every 10 years.

Water resource and climate enthusiasts will find Cyreus Peterson to be an intriguing structure with potential for recreational activities. Its historical significance, design characteristics, and risk assessment provide valuable insights into the management and maintenance of dams in the region. Further exploration of this dam could offer valuable lessons for sustainable water resource management and climate resilience strategies.