Carl Dam, located in Marengo, Iowa, is a privately owned structure designed by NRCS for fire protection, stock, or small fish pond purposes. Completed in 1999, this earth dam stands at a height of 33 feet and spans 206 feet in length, with a storage capacity of 29 acre-feet. Situated on Tr- Buckeye Creek, the dam serves as a crucial water resource in Benton County, Iowa, regulating water flow for various uses.

Managed by the Iowa Department of Natural Resources, Carl Dam has a low hazard potential and is deemed to have a moderate risk level. Despite its condition being currently unrated, the dam has not undergone any recent inspections or evaluations. With a spillway width of 1 foot and uncontrolled spillway type, the dam ensures controlled water discharge during heavy rainfall events, minimizing the risk of flooding and protecting downstream areas. Water and climate enthusiasts can appreciate the role of Carl Dam in water management and conservation efforts in the region.

Abby Finkenauer, the Democratic representative for the area, overlooks Carl Dam, ensuring its compliance with state regulations and safety standards. The dam's location in the Detroit District further emphasizes its significance in the local water infrastructure, providing essential services for fire protection and agricultural needs. As climate change continues to impact water resources, the maintenance and monitoring of structures like Carl Dam become increasingly crucial in safeguarding the environment and community wellbeing.