Brown Dam, located in Danbury, Iowa, along the TR-MAPLE RIVER, is a privately owned earth dam that serves multiple purposes including fire protection, stock, and small fish pond. Constructed in 1961 by the USDA NRCS, this dam stands at a height of 29 feet and has a length of 490 feet, with a storage capacity of 60 acre-feet. Despite being uncontrolled, the spillway type of Brown Dam ensures the safety of the surrounding area by managing potential overflow.

Managed by the Iowa DNR, Brown Dam is regulated, inspected, and enforced by the state, ensuring its structural integrity and safety for the community. With a low hazard potential and a moderate risk assessment score, the dam has not been officially rated for its current condition. Although last inspected in 1963, the dam remains a vital resource for water storage and management in the area, playing a crucial role in the local ecosystem and providing essential services for the region.

As a significant structure in the Rock Island District, Brown Dam represents a blend of functionality and environmental stewardship. With its historical significance and ongoing role in water resource management, this dam serves as a reminder of the importance of sustainable infrastructure development and climate-conscious practices in safeguarding our natural resources for future generations.