East Fork Grand River Watershed Site A-32 is a flood risk reduction structure located in Union County, Iowa. Designed by the USDA NRCS and completed in 2005, this Earth dam stands at 29 feet tall and spans a length of 578 feet, with a maximum storage capacity of 147 acre-feet. Situated in a drainage area of 0.43 square miles, the dam serves the primary purpose of flood risk reduction along the TR- East Fork Grand River.

Managed by the Iowa Department of Natural Resources, the dam at Site A-32 has a low hazard potential and is currently in a condition that has not been rated. With a moderate risk assessment score of 3, the structure does not have an emergency action plan in place or updated inundation maps. This site, inspected by the state and regulated by Iowa DNR, plays a crucial role in mitigating flood risks in the region, highlighting the importance of water resource management and climate resilience efforts in the East Fork Grand River Watershed.