Sharp Dam, located in Summit Lake, Iowa, is a privately owned structure designed by the USDA NRCS for fire protection, stock, and small fish pond purposes. Completed in 1980, this earth dam stands at a height of 21 feet and spans 560 feet in length, with a storage capacity of 81 acre-feet. Situated on the TR-West Platte River, the dam is regulated by the Iowa DNR and is subject to state permitting, inspection, and enforcement.

With a low hazard potential and a moderate risk assessment rating, Sharp Dam plays a crucial role in water resource management in Union County, Iowa. Despite its uncontrolled spillway type, the dam's condition is currently not rated, and there are no emergency action plans in place. However, the structure meets state guidelines and is regularly monitored for any potential risks or issues that may arise. For water resource and climate enthusiasts, Sharp Dam serves as a key feature in the local landscape, providing essential water storage and management capabilities for the surrounding area.