Anderson Dam, located in Montgomery County, Iowa, is a privately owned structure designed by the USDA NRCS for fire protection, stock, or small fish pond purposes. Completed in 1960, this earth dam stands at 29 feet high and spans a length of 608 feet, with a storage capacity of 88 acre-feet. Situated on Walnut Creek, the dam has a low hazard potential and is currently rated as "Not Rated" in terms of its condition assessment.

Although the dam has not been inspected since 1963, it is regulated by the Iowa DNR and meets state permitting, inspection, and enforcement requirements. The dam's spillway type is uncontrolled, with a surface area of 2.9 acres and a drainage area of 0.64 square miles. With a moderate risk level assigned, Anderson Dam serves as a crucial component for water resource management and climate resilience in the region, under the jurisdiction of the Omaha District and overseen by federal agencies such as the Natural Resources Conservation Service.