Located in Coppock, Iowa, the Bernstein Estate Dam is a private structure designed by the USDA NRCS for grade stabilization along the Tr-South Skunk River. Completed in 2000, this earth dam stands at 25 feet high and spans 217 feet in length, with a storage capacity of 18 acre-feet. The dam serves the primary purpose of grade stabilization and has a low hazard potential, with a moderate risk assessment rating.

Although not regulated by the state, the Bernstein Estate Dam is monitored by the Natural Resources Conservation Service and has not been officially inspected or rated for its condition. With an uncontrolled spillway and no outlet gates, the dam's emergency action plan status remains unknown. Despite its modest size and storage capacity, this dam plays a crucial role in managing local water resources and mitigating potential risks in the area. For water resource and climate enthusiasts, the Bernstein Estate Dam offers a fascinating glimpse into the intersection of private ownership, environmental stewardship, and infrastructure development.