Silliman Dam, located in Madison County, Iowa, is a private-owned earth dam constructed in 1995 by the USDA NRCS. With a height of 36 feet and a length of 590 feet, this dam primarily serves the purposes of fire protection, livestock, and small fish pond management. It has a storage capacity of 33 acre-feet and covers a surface area of 1 acre, with a drainage area of 0.23 square miles.

Despite being classified as a low-hazard dam with a moderate risk assessment, Silliman Dam is regulated, permitted, inspected, and enforced by the Iowa Department of Natural Resources. The dam features an uncontrolled spillway type and is situated on the TR- North River. The surrounding area is under the jurisdiction of the Kansas City District of the US Army Corps of Engineers. Its condition assessment is currently not rated, and there is no emergency action plan in place.

For water resource and climate enthusiasts, Silliman Dam offers an intriguing case study in dam infrastructure management and risk assessment. Its strategic location and design make it a crucial asset for local water management and conservation efforts. As stakeholders continue to monitor and maintain this structure, it serves as a reminder of the importance of sustainable water resource practices in mitigating potential hazards and ensuring environmental resilience in the face of changing climate patterns.