Dd No 22, located in Alta Vista, Kansas, is a local government-owned earth dam designed by King Engineering in 2005 for flood risk reduction along the Kansas River. With a height of 34 feet and a length of 1550 feet, this dam provides a storage capacity of 463 acre-feet and covers a surface area of 9.97 acres. It has a spillway width of 40 feet and a maximum discharge capacity of 1923 cubic feet per second.

This dam is regulated by the Kansas Department of Agriculture and undergoes regular inspections, with the last one conducted in April 2019. Classified as having a significant hazard potential and a satisfactory condition assessment, Dd No 22 is considered to pose a moderate risk (level 3) according to the risk assessment. Although there are no outlet gates or associated structures, the dam serves its primary purpose effectively in reducing flood risks in the area.

Overall, Dd No 22 plays a vital role in protecting the surrounding areas from potential flooding events and demonstrates a commitment to water resource management and climate resilience by the local government in Wabaunsee County, Kansas. With its strategic location and design features, this dam serves as a crucial infrastructure for safeguarding lives and property in the region while preserving the ecological balance of the Kansas River watershed.