Gennaro Dam, located in Union County, Iowa, is a privately owned earth dam that was completed in 2006 for the primary purpose of grade stabilization. The dam stands at a height of 26 feet and has a length of 405 feet, providing a storage capacity of 39 acre-feet. Situated on a tributary to Indian Creek, the dam helps to control the flow of water and protect against erosion in the area.

Managed by the Iowa Department of Natural Resources, Gennaro Dam is regulated and inspected regularly to ensure its safety and compliance with state standards. With a low hazard potential, the dam has not been rated for its condition assessment, but serves as an important structure for water resource management and supply in the region. Despite its relatively small surface area of 3 acres, the dam plays a crucial role in maintaining water quality and quantity for the surrounding area.

Overall, Gennaro Dam serves as a vital infrastructure for grade stabilization and water supply in Westerville, Iowa. Designed by USDA NRCS, the dam contributes to the conservation and management of water resources in the region, demonstrating the importance of private ownership in supporting sustainable water management practices. As climate change continues to impact water availability and quality, structures like Gennaro Dam play a crucial role in enhancing resilience and adaptation to changing environmental conditions.