Dewey County Conservation District operates and maintains 22 flood control structures located in the southwest part of Dewey County. The district inspects the dams and does O & M on the structures. Most of our dams have out lived their 50 year life span. Dewey County has rehabilitated one structure so far. The district is working with Natural Resource Conservation Service to prepare surveys and design plans on several other sites. The district is local sponsor responsible for the safety of the structure. The structures have worked so well most of the general public does not realize how well the structures have done their job. To keep the public safe the district will continue to work with NRCS and local land owners to increase the life span to a 100 years.