Nass Dam, located in Monona, Iowa, is a private earth dam completed in 1999 with a primary purpose of fire protection, stock, or small fish pond. The dam stands at a height of 44 feet and has a length of 637 feet, with a storage capacity of 224 acre-feet and a surface area of 11.2 acres. It is situated on the TR- SOLDIER RIVER and is regulated by the Iowa Department of Natural Resources.

Despite its low hazard potential and moderate risk assessment, Nass Dam has not been given a condition rating and lacks certain emergency preparedness measures such as an Emergency Action Plan (EAP). The dam does not have any outlet gates or locks and features an uncontrolled spillway type. The risk management measures for the dam are currently unspecified.

For water resource and climate enthusiasts, Nass Dam serves as an intriguing case study in dam infrastructure and management. With its unique design and purposes, as well as its location on the TR- SOLDIER RIVER, the dam presents a valuable opportunity for further exploration and analysis in the realm of water resource sustainability and climate resilience.