Wenger Dam, located in Coppock, Iowa, is a privately owned structure designed by USDA NRCS with a primary purpose of grade stabilization. Completed in 2005, this Earth dam stands at a height of 35 feet and spans 180 feet in length. It has a storage capacity of 20 acre-feet and serves to stabilize the flow of a tributary to Crooked Creek.

The dam has a low hazard potential and has not been rated for its condition assessment. While it is not under state jurisdiction, it is subject to permitting, inspection, and enforcement by the state regulatory agency. Wenger Dam plays a crucial role in managing water resources in Washington County, Iowa, by helping to control and stabilize the water flow in the area, especially during periods of heavy rainfall or flooding.

With a spillway width of 10 feet and a maximum discharge of 469 cubic feet per second, Wenger Dam is a key infrastructure for managing water resources in the region. Its design and construction reflect a commitment to environmentally sustainable practices, making it a valuable asset for climate and water resource enthusiasts interested in the intersection of infrastructure and natural resource management.