Strong Arm No 2 (Lower) is a privately-owned irrigation structure located in Warm Springs, Idaho, within the beautiful Franklin County. Built in 1897, this earth dam stands at a height of 26.9 feet and has a storage capacity of 377 acre-feet, serving the primary purpose of irrigation for the surrounding area. The dam, constructed with stone core and rock and soil foundations, spans 660 feet and impounds water from Battle Creek and Bear River.

Despite its historical significance and vital role in water management, Strong Arm No 2 (Lower) is currently rated as having a poor condition assessment and a significant hazard potential, with a moderate risk level. The dam features an uncontrolled spillway and a slide gate outlet, with regular state inspection, permitting, and enforcement to ensure public safety. While the structure has not undergone recent modifications, it is essential for water resource and climate enthusiasts to stay updated on its maintenance and potential risks, as it continues to play a crucial role in the local irrigation system.