Yamhill River Flow Restoration Instream Flow Project IDNRRSS_2551Recovery DomainsWillamette R. - Lower ColumbiaStart Date - End Date - StatusCompletedLast Edited04/26/2021 1 - 1 Description Reduction of water usage to increase flow during irrigation season in order to restore habitat for migration of cutthroat trout and winter steelhead. More information at: www.owt.org