Located in Valley Falls, Kansas, Gs Dd No D-17 is a local government-owned dam designed by P.E. Wilbur Naylor for flood risk reduction on the South Branch Cedar Creek-TR river. Completed in 1998, this earth dam stands at a height of 30 feet and spans 450 feet in length, with a storage capacity of 107.9 acre-feet. Despite its low hazard potential and moderate risk assessment, the dam has not been rated for its condition and has not been inspected since February 1998.

With a spillway width of 40 feet and a maximum discharge of 424 cubic feet per second, Gs Dd No D-17 serves the primary purpose of flood risk reduction along with debris control. It is regulated by the Kansas Department of Agriculture, with state permitting, inspection, and enforcement in place. The dam has a normal storage capacity of 14.8 acre-feet and covers a surface area of 3.2 acres, draining a watershed area of 0.43 square miles. While it lacks outlet gates, associated structures, and emergency action plans, Gs Dd No D-17 remains a crucial infrastructure for water resource management in Jackson County, Kansas.