Mountain Home is a privately owned dam located in Elmore County, Idaho, specifically in the city of Mountain Home. Completed in 1884, this earth dam stands at a height of 47.7 feet and has a hydraulic height of 42.4 feet, serving as a critical water resource for the area. With a storage capacity of 5,468 acre-feet and a surface area of 406 acres, Mountain Home plays a crucial role in managing water from Rattlesnake Creek and Canyon Creek, ensuring water security for the region.

Despite being a historic structure, Mountain Home is regulated by the Idaho Department of Water Resources, with regular inspections and enforcement measures in place to maintain its integrity. The dam's spillway type is uncontrolled, with a width of 75 feet, and it features a slide (sluice gate) as its outlet gates. The dam poses a high hazard potential, but is currently assessed to be in fair condition as of the last inspection in June 2019. With a moderate risk rating, Mountain Home continues to be a key component in the region's water management infrastructure, providing essential services for the community.

As climate change impacts water resources and infrastructure, the maintenance and monitoring of structures like Mountain Home become increasingly vital. With a long history of service and a crucial role in water management for Elmore County, this dam stands as a testament to the resilience and importance of water resource management in the face of evolving climate challenges. As water resource and climate enthusiasts, it is essential to recognize the significance of structures like Mountain Home in ensuring sustainable water security for communities now and in the future.