Dd No 18 is a crucial flood risk reduction structure located in Pottawatomie County, Kansas. Built in 1999, this earth dam spans 700 feet in length and stands at a height of 38 feet, with a storage capacity of 840.4 acre-feet. The dam plays a key role in protecting the surrounding area from flooding, with a primary purpose of debris control and flood risk reduction.

Managed by the local government, Dd No 18 is regulated by the Kansas Department of Agriculture and undergoes regular inspections to ensure its structural integrity. Despite being classified as having a significant hazard potential and an unsatisfactory condition assessment, the dam continues to serve its purpose effectively. With a moderate risk level and a history of inspections dating back to April 2017, Dd No 18 remains a critical component of the flood control infrastructure in the region, safeguarding the community from potential water-related disasters.