Anderson Dam, located in Sioux Rapids, Iowa, serves multiple purposes including fire protection, stock, and small fish pond. Built in 2005 by the NRCS, this private dam stands at a height of 31 feet with a length of 292 feet, providing a storage capacity of 101 acre-feet. Situated on TR- Willow Creek, it is regulated by the Iowa DNR and is inspected, permitted, and enforced by the state authorities. With a low hazard potential and a moderate risk assessment, Anderson Dam is considered to be in fair condition.

Despite being an earth dam with a soil foundation, Anderson Dam is designed to withstand the demands of its primary purposes. While it has an uncontrolled spillway with a width of 2 feet, the dam has not undergone any modifications since its completion. The dam's surface area covers 4.1 acres, serving a drainage area of 0.64 square miles. With a risk assessment indicating moderate risk, Anderson Dam's emergency action plan status and adherence to guidelines remain unspecified, suggesting the need for ongoing risk management measures to ensure the safety of the surrounding area.

Owned by a private entity, Anderson Dam is a vital resource for the community, offering essential services such as fire protection and water storage. As climate change continues to impact water resources, the maintenance and management of dams like Anderson become increasingly crucial in ensuring water security and resilience in the face of changing environmental conditions.