Carter Dam in Madison, Iowa, is a privately owned structure designed by the USDA NRCS for fire protection, stock, or small fish pond purposes. Completed in 1993, this earth dam stands at 36 feet high and spans 480 feet in length, with a storage capacity of 61 acre-feet. Situated on the TR- North River, the dam serves a vital role in water resource management in the region, with a low hazard potential and a moderate risk assessment rating.

Managed by the Iowa DNR, Carter Dam is subject to state regulation, permitting, inspection, and enforcement to ensure its structural integrity and safety. While the dam's condition assessment is currently not rated, its risk management measures are in place to address any potential issues. Located in a picturesque setting in NORWALK, this dam not only provides essential water storage but also contributes to the local ecosystem and recreational opportunities for residents and visitors alike.

With a surface area of 3.9 acres and a drainage area of 0.2 square miles, Carter Dam plays a significant role in managing water flow and storage in the area. Despite its uncontrolled spillway type, the dam's design and construction by the Natural Resources Conservation Service reflect a commitment to sustainable water resource management. For water resource and climate enthusiasts, Carter Dam serves as a valuable example of how private and public partnerships can work together to create essential infrastructure for both human and environmental benefit.