This report presents the results of a fish behavior, distribution, and passage study conducted by the Pacific Northwest National Laboratory (PNNL) for the U.S. Army Corps of Engineers Portland District (USACE) at Lookout Point Dam (or Lookout) during the fall of 2016 (October–December) and spring of 2017 (March–June). The goal of this study was to provide biologists, engineers, resource managers, and regional decision-makers with information about the behavior, distribution, and passage of juvenile Chinook salmon (Oncorhynchus tshawytscha) through the reservoir and tailwaters of Lookout. The results of this study are intended to inform decision-making about long-term structural and operational measures to help rebuild populations of Upper Willamette River spring Chinook salmon listed as threatened under the Endangered Species Act.