Davis Dam, located in Westerville, Iowa, along the TR-Grand River, was completed in 1965 by the USDA NRCS. This earth dam stands at a height of 25 feet and stretches 412 feet in length, providing fire protection and serving as a stock or small fish pond. With a storage capacity of 39 acre-feet and a surface area of 3.3 acres, Davis Dam plays a vital role in water resource management in the region.

Owned privately and regulated by the Iowa Department of Natural Resources, Davis Dam has a low hazard potential and is currently rated as "Not Rated" in terms of condition assessment. Despite its moderate risk level, the dam has not been inspected or assessed since October 1967. With its uncontrolled spillway type and a drainage area of 0.23 square miles, Davis Dam presents an intriguing case study for water resource and climate enthusiasts interested in the maintenance and management of small-scale earth dams.

As the only dam in the area designed for fire protection and recreational purposes, Davis Dam showcases the importance of proper inspection, maintenance, and risk management measures to ensure its long-term sustainability. With its unique location and purpose, this dam serves as a significant water resource infrastructure in Madison County, Iowa, attracting attention from both local authorities and environmental advocates alike.