Knapp Dam, located in Ringgold County, Iowa, is a privately owned structure built in 1959 with a primary purpose of fire protection and serving as a small fish pond. Designed by the USDA NRCS, this earth dam stands at a height of 29 feet and stretches 550 feet in length, with a storage capacity of 90 acre-feet. The dam is situated on the TR-Middle Fork Grand River and is regulated by the Iowa DNR, with state permitting, inspection, and enforcement in place.

With a low hazard potential and a moderate risk assessment rating, Knapp Dam plays a crucial role in water resource management in the area. While the dam has not been rated for its condition, it serves as a vital infrastructure for fire protection and stock water supply. Despite its uncontrolled spillway type, the dam's risk management measures and emergency action plan status are currently not rated, highlighting the need for continued monitoring and maintenance to ensure its safety and functionality for the community.

As a key component in the water infrastructure of Ringgold County, Knapp Dam serves as a valuable asset for both water resource and climate enthusiasts. With its strategic location and purpose, the dam provides essential benefits such as fire protection and small fish pond habitat while contributing to the overall water management efforts in the region. As efforts continue to assess and improve its condition and risk management measures, Knapp Dam remains a significant feature in the landscape, showcasing the intersection of human engineering and natural resource conservation.