John Day Dam
concrete gravity run-of-the-river dam on the Columbia River in Oregon and Washington, United States
en-US/ˈd͡ʒɑn ˈdeɪ ˈdæm/
en-GB/d͡ʒɒn ˈdeɪ ˈdæm/
concrete gravity run-of-the-river dam on the Columbia River in Oregon and Washington, United States