G-25, also known as the Slough Creek Dam, is a local government-owned structure located in Oskaloosa, Kansas, within Jefferson County. Completed in 2011, this earth dam stands at a height of 37.5 feet and serves primarily for flood risk reduction along the Slough Creek. With a normal storage capacity of 45.1 acre-feet and a maximum storage of 158 acre-feet, G-25 plays a crucial role in managing water levels in the area.

Managed by the Kansas Department of Agriculture, G-25 has a low hazard potential and a moderate risk assessment rating of 3. The dam's spillway, with a width of 40 feet, is uncontrolled, while the structure itself is buttress-cored and measures 671 feet in length. Despite being last inspected in 2009, G-25 remains in good condition and is regularly monitored for any necessary maintenance or repairs. Water resource and climate enthusiasts can appreciate the important role that G-25 plays in mitigating flood risks and protecting the surrounding community from potential water-related disasters.