Sage Hen is a privately-owned dam located in Ola, Idaho, within Gem County. Built in 1939 by the USDA NRCS, this earth dam stands at a height of 46.4 feet, with a hydraulic height of 37.9 feet. The dam's primary purpose is listed as "Other," with a storage capacity of 5,210 acre-feet, serving as a vital water resource for the surrounding area.

With a significant hazard potential and fair condition assessment, Sage Hen Dam is regulated by the Idaho Department of Water Resources and undergoes regular inspections for enforcement and permitting. The dam features uncontrolled spillways and slide gates for outlet control, ensuring proper water management during peak discharge events. Despite its age, the dam continues to play a crucial role in water storage and management within the region.

Ensuring the safety and reliability of Sage Hen Dam remains a priority, with a moderate risk assessment score of 3. Emergency action plans and risk management measures are yet to be updated, highlighting the need for continued monitoring and maintenance to mitigate potential hazards. As a key feature in the local water infrastructure, Sage Hen Dam stands as a testament to sustainable water resource management in the face of changing climate conditions.