Campbell Dam, located in Danbury, Iowa, is a privately owned earth dam completed in 1997 by the USDA NRCS, with a primary purpose of fire protection, stock, or small fish pond. The dam stands at a height of 38 feet and spans 764 feet in length, holding a maximum storage capacity of 83 acre-feet. Situated on the TR-Maple River, the dam serves to regulate water flow and provide essential water resources for the local community.

With a low hazard potential and a moderate risk assessment rating, Campbell Dam is regulated by the Iowa DNR and undergoes regular state inspection, permitting, and enforcement. The dam's design and construction were overseen by the Natural Resources Conservation Service, ensuring its structural integrity and functionality for its intended purposes. Despite not being rated for condition assessment, Campbell Dam continues to play a vital role in water resource management and climate resilience efforts in the region.

As a key feature in the Rock Island District, Campbell Dam serves as a critical infrastructure for water storage and management in Ida County, Iowa. With its earth construction and soil foundation, the dam provides a reliable source of water for fire protection, livestock, and habitat for small fish species. Its controlled spillway and regulated operations contribute to the overall safety and sustainability of the surrounding environment, making Campbell Dam an essential component in the local water resource and climate adaptation strategies.