This is a list of dams in Idaho that have been removed as physical impediments to free-flowing rivers or streams.
The Grangeville Dam was a long arched concrete hydroelectric dam on the South Fork Clearwater River. The dam was removed in the interest of fish passage and since the hydropower facilities had become obsolete. It was destroyed by dynamite at 6:35 PM on August 19, 1963, following two prior detonations that day which had failed to collapse the structure. At the time, the dam was the largest ever to be removed, a record which stood for decades.
Built in 1927, the tall Lewiston Dam on the main Clearwater River was demolished in 1973 to make way for Lower Granite Lake, the slack water pool behind Lower Granite Dam.