Monroe Dam is a concrete gravity dam located on the Salmon River in Idaho, USA. Completed in 1955, it was built primarily for flood control, irrigation, and hydroelectric power generation. The dam creates the Monroe Lake, which serves as a reservoir for water storage and recreational activities. The dam stands approximately 100 feet tall and spans about 1,200 feet across the river. It plays a crucial role in managing water flow and supporting local agriculture by providing a reliable water supply. Additionally, the hydroelectric facility generates renewable energy, contributing to the region's power needs.