Grundle Dam, located in Fremont County, Iowa, is a private-owned structure designed by USDA NRCS with a primary purpose of providing fire protection, stock, or a small fish pond. Completed in 1962, this earth dam stands at a height of 38 feet and has a storage capacity of 41 acre-feet. Situated on TR-COON CREEK, the dam serves to regulate water flow in the area and offers low hazard potential with a moderate risk assessment rating.

Managed by the Iowa DNR, Grundle Dam is a state-regulated and inspected facility with a spillway type of "Uncontrolled." Although not currently rated for its condition, the dam has not undergone any recent modifications and is considered to have a low risk potential for failure. With its strategic location and purposeful design, Grundle Dam plays a vital role in water resource management and contributes to the overall environmental sustainability of the region. For water resource and climate enthusiasts, Grundle Dam serves as an important example of private ownership and state regulation in ensuring the safety and efficiency of water infrastructure.