Dennis Ranch Dam, also known as Kars228, is a privately owned structure located in Oak Valley, Kansas. The dam has a primary purpose of recreation and serves other functions such as fire protection, stock, small fish pond, fish and wildlife pond. It is an earth-type dam with a height of 42 feet and a length of 750 feet, providing a storage capacity of 189 acre-feet and a surface area of 10.6 acres.

Managed by the Kansas Department of Agriculture, the dam is regulated, permitted, inspected, and enforced by state agencies to ensure its safety and compliance with regulations. Despite being categorized as having a low hazard potential, the dam's risk assessment is moderate (3), indicating a need for ongoing monitoring and risk management measures. The spillway, with a width of 25 feet, is uncontrolled, and there are no outlet gates associated with the dam.

The last inspection of Dennis Ranch Dam was conducted in March 2012, and its condition assessment is currently listed as "Not Rated." While the dam meets guidelines for emergency action plans (EAP), details about the preparation date, revision date, and contact information are not specified in the available data. Overall, Dennis Ranch Dam presents an intriguing case study for water resource and climate enthusiasts, showcasing the importance of proper dam management and maintenance in safeguarding communities and natural habitats.