Carson Dam, located in Johnson County, Iowa, was completed in 1978 and serves as a vital water resource for the area. The dam's primary purpose is for fire protection, stock, or as a small fish pond, providing storage capacity of 25 acre-feet and a surface area of 2.2 acres. The structure is owned privately and regulated by the Iowa Department of Natural Resources, ensuring proper inspection, permitting, and enforcement measures are in place to maintain its integrity.

Constructed with an earth design and soil foundation, Carson Dam stands at a height of 27 feet and a length of 160 feet along the TR-Cedar River. Despite its low hazard potential and moderate risk assessment, the dam has not been rated for its condition. With a controlled spillway type and uncontrolled spillway width, the structure poses minimal risk to surrounding areas. While the dam has not undergone recent inspection or maintenance, its presence remains crucial for water conservation and management in the region.

Managed by the Natural Resources Conservation Service, Carson Dam continues to play a significant role in water resource management and climate resilience efforts. With its strategic location and purpose, the dam serves as a reliable source for fire protection and agricultural needs while contributing to the overall sustainability of the surrounding ecosystem. As enthusiasts in water resource and climate conservation, the significance of Carson Dam lies in its contribution to the efficient utilization and preservation of water resources in Johnson County, Iowa.