Lake Darling Dam, located in Washington, Iowa, is a state-owned structure with a primary purpose of recreation. Built in 1950, this earth dam stands at a height of 47 feet and spans a length of 1230 feet, impounding the waters of Honey Creek to create Lake Darling. With a storage capacity of 9823 acre-feet and a surface area of 304 acres, the dam provides the perfect setting for outdoor enthusiasts to enjoy various recreational activities such as boating, fishing, and picnicking.

Managed by the Iowa Department of Natural Resources, Lake Darling Dam is regulated, permitted, inspected, and enforced by state authorities to ensure its safety and functionality. The dam's spillway, with a width of 385 feet, serves as an uncontrolled release point for excess water during high flow events. Despite being classified as having a significant hazard potential, the dam has been assessed as satisfactory in condition and is considered to have a moderate risk level. The last inspection in June 2020 confirmed the dam's structural integrity and its ability to withstand potential emergencies.

Surrounded by the scenic beauty of Coppock, Iowa, Lake Darling Dam offers a tranquil retreat for water resource and climate enthusiasts seeking to connect with nature. Whether exploring the surrounding wildlife or simply enjoying the peaceful ambiance of the lake, this recreational haven provides a unique opportunity to appreciate the importance of sustainable water management and environmental conservation efforts in the region.