Campbell Dam, located in Mapleton, Iowa, was completed in 1964 by the USDA SCS and serves multiple purposes including fire protection, stock, and small fish pond management. The dam stands at 37 feet tall and spans 624 feet in length, with a storage capacity of 90 acre-feet. Situated on the TR-MAPLE RIVER, the dam is under the jurisdiction and regulation of the Iowa Department of Natural Resources.

With a low hazard potential and a moderate risk assessment rating, Campbell Dam plays a crucial role in water resource management in the region. While the dam has not been rated for its current condition, it undergoes regular inspections and is permitted, inspected, and enforced by the state regulatory agency. Despite its uncontrolled spillway type, the dam's location and design make it a key feature in maintaining water levels and providing essential services to the surrounding community.

Water and climate enthusiasts will appreciate Campbell Dam's role in the local ecosystem and its contribution to water storage and management. As a privately owned structure, the dam's significance lies in its ability to support fire protection, stock management, and small-scale fish pond activities. With its long history and vital functions, Campbell Dam stands as a testament to the intersection of human infrastructure and natural resource management in the region.