Dd No Sa-4, also known as Snipe Creek Pilot WS Dam Sa 4, is a flood risk reduction structure located in Frankfort, Kansas. Built in 1955 and designed by USDA NRCS, this dam has a core type of Buttress and stands at a height of 24 feet with a hydraulic height of 18 feet. The dam spans 680 feet in length and has a storage capacity of 134 acre-feet, serving the primary purpose of flood risk reduction along Snipe Creek.

Owned by the local government and not regulated by the state, Dd No Sa-4 has a low hazard potential and is currently rated as "Not Rated" in terms of condition assessment. With no associated structures and no outlet gates, this dam is considered to have a minimal risk factor. Although it has not been inspected recently and lacks an Emergency Action Plan, Dd No Sa-4 remains a key asset in mitigating flood risks in the area, reflecting the importance of water resource management and climate resilience in local communities like Frankfort, Kansas.