Prehm Dam, located in Iowa's Henry County near Lake Geode, is a privately-owned structure designed by the USDA NRCS and regulated by the Iowa DNR. Completed in 1986, this earth dam stands at a height of 33 feet and spans 210 feet in length, with a storage capacity of 40 acre-feet. The dam serves multiple purposes, including fire protection and creating a small fish pond, making it a valuable resource for the local community.

With a low hazard potential and a moderate risk assessment rating, Prehm Dam plays a crucial role in water management for the area. While not currently rated for its condition, the dam's construction and design by the Natural Resources Conservation Service highlight its importance in ensuring water security and safety. Its location on the TR- Cedar Creek stream and ownership by a private entity underscore the collaborative efforts needed to sustain and protect this vital water resource in Iowa.

As a key feature in the region's water infrastructure, Prehm Dam provides essential services for both fire protection and recreational use. Its controlled spillway and earth construction contribute to its functionality and overall resilience. With ongoing regulatory oversight and maintenance, Prehm Dam continues to play a significant role in water resource management and climate resilience efforts in the area.