Willamette River Fishing Report August 16th, 2019 Posted on August 15, 2019August 18, 2019 by Bob Rees Willamette River Fishing Report – No report this week, but coho will soon be on their way for Dahl and Clackamette Park casters to try for. To access this post, you must purchase Oregon Memberships – Steelhead or Oregon Memberships – Chinook.