Dd No 4-15 (Atwater) is a crucial earth dam located in Muscotah, Kansas, designed by Speaker & King in 1990 for the primary purpose of flood risk reduction along Muddy Creek. With a height of 27 feet and a length of 620 feet, the dam has a storage capacity of 115.1 acre-feet, serving as a key infrastructure for mitigating flood hazards in the region. The dam's low hazard potential and moderate risk assessment make it an essential asset for water resource management in Jackson County.

Managed by the local government, Dd No 4-15 (Atwater) has not been rated for its condition assessment but is deemed to meet the necessary guidelines for emergency action planning. Despite the lack of inspection frequency and detailed risk management measures, the dam plays a critical role in safeguarding the surrounding areas from potential inundation. With a controlled spillway width of 76 feet and a surface area of 6.7 acres, the dam's strategic location and design contribute significantly to the overall flood risk reduction efforts in the region.

As part of the Kansas City District, the dam falls under the jurisdiction of the state regulatory agency with no federal involvement in its ownership or funding. Although it has not been modified in recent years, Dd No 4-15 (Atwater) continues to fulfill its primary function effectively, highlighting the importance of sustainable infrastructure development for climate and water resource enthusiasts in safeguarding communities against the adverse impacts of flooding.