Clarks Lake Dam, located in Colfax, Iowa, is a privately owned earth dam completed in 1962 for recreational purposes. Standing at a height of 23 feet and with a length of 310 feet, the dam holds a maximum storage capacity of 82 acre-feet, with a normal storage level of 43 acre-feet. The dam is situated on the TR-South Skunk River and is regulated by the Iowa Department of Natural Resources, with state permitting, inspection, and enforcement in place.

Despite being rated as low hazard potential and not having a condition assessment, Clarks Lake Dam is considered to have a moderate risk level. The dam is equipped with an uncontrolled spillway and has not been modified in recent years. The last inspection of the dam was conducted in May 1999, with the inspection frequency and emergency action plan status not specified in the data. Overall, Clarks Lake Dam presents an intriguing case study for water resource and climate enthusiasts interested in the management and maintenance of dams for recreational purposes in the state of Iowa.