The Walton Dam in Marengo, Iowa, is a privately-owned structure designed by NRCS with a primary purpose of fire protection, stock, or small fish pond. Completed in 1998, this earth dam stands at 34 feet high and spans 207 feet in length, providing a storage capacity of 46 acre-feet. Situated on the TR-Iowa River, the dam serves the community with low hazard potential and a moderate risk rating.

Managed by the Iowa Department of Natural Resources, the Walton Dam is regulated, permitted, inspected, and enforced by state agencies to ensure its safety and functionality. With a surface area of 3.5 acres and a drainage area of 0.08 square miles, the dam contributes to water resource management in the region. Although the dam has not been rated for its condition assessment, it remains a crucial infrastructure for fire protection and supporting local wildlife.

Water resource and climate enthusiasts will appreciate the strategic location of the Walton Dam within Benton County, Iowa, and its role in maintaining a balanced ecosystem along the Iowa River. With a controlled spillway and a capacity to hold 32 acre-feet of normal storage, the dam contributes to flood control efforts and supports irrigation needs in the surrounding area. As a privately-owned structure with state oversight, the Walton Dam represents a collaborative approach to water management and environmental stewardship in the region.