Frd No 7a is a dam located in Butler, Kansas, designed by Dale Steward, P.E., and owned by the local government. It serves the primary purpose of flood risk reduction along Polecat Creek-TR, with a dam height of 25 feet and a length of 1300 feet. The dam has a storage capacity of 676.2 acre-feet, with a normal storage level of 83.8 acre-feet and a drainage area of 1.65 square miles. It has a low hazard potential and is currently not rated in terms of condition assessment.

The dam features an uncontrolled spillway with a width of 100 feet and has no outlet gates. It is regulated, permitted, inspected, and enforced by the Kansas Department of Agriculture, and is located within the jurisdiction of the state. The risk assessment for Frd No 7a is moderate (3), indicating a moderate level of risk associated with the dam. Overall, Frd No 7a plays a crucial role in mitigating flood risks in the area and ensuring the safety of nearby communities and infrastructure.