Elk River, located in Idaho, is a state-owned dam on the North Fork Clearwater River. Built in 1951, this earth dam stands at a height of 21.7 feet and has a normal storage capacity of 463 acre-feet. With a controlled spillway and a maximum discharge of 2917 cubic feet per second, Elk River serves multiple purposes beyond flood control, making it a critical water resource in the region. Despite its poor condition assessment, the dam has a low hazard potential and is under state regulation, permitting, inspection, and enforcement by the Idaho Department of Water Resources.

The dam's location in Clearwater County, Idaho, makes it a vital infrastructure for water management in the area. The dam's foundation is made of rock and soil, with a spillway width of 68 feet. With a drainage area of 42 square miles and a surface area of 61 acres, Elk River plays a significant role in water storage and management for local communities. Although it has not been significantly modified over the years, the dam continues to be monitored for its structural integrity and risk assessment, which is currently rated as very high.

Even with its aging infrastructure and poor condition assessment, Elk River remains a crucial water resource for the region, providing essential water management services and flood control measures. As a state-regulated dam, it undergoes regular inspections and enforcement to ensure public safety and water security. With its historical significance dating back to the early 1950s, Elk River continues to be a key player in the sustainable management of water resources in Idaho.