Dd No 3 (Sp-3) is a local government-owned dam in Butler, Kansas, constructed in 1990 for flood risk reduction and debris control purposes. This earth dam stands at a height of 22.3 feet and has a length of 1189 feet, providing a maximum storage capacity of 725.4 acre-feet. With a low hazard potential and a moderate risk assessment rating, this dam plays a crucial role in managing water resources in the area.

Located in the Kansas City District, Dd No 3 (Sp-3) is regulated by the Kansas Department of Agriculture and undergoes regular inspection, permitting, and enforcement to ensure its safety and functionality. With a spillway width of 40 feet and a maximum discharge capacity of 1210 cubic feet per second, this dam is equipped to handle excess water flow and protect downstream areas from flooding. Despite not having outlet gates, Dd No 3 (Sp-3) continues to serve its primary purpose effectively while meeting state jurisdiction and regulatory requirements.

Overall, Dd No 3 (Sp-3) stands as a vital piece of infrastructure in managing water resources and mitigating flood risks in Butler, Kansas. With a focus on safety, regulatory compliance, and risk management, this dam exemplifies the importance of maintaining and monitoring water structures to ensure the well-being of local communities and the surrounding environment.