Willamette, McKenzie & Santiam Rivers Fishing Report for April 10th Posted on April 9, 2015 by Michael Teague Willamette Valley Fishing Report – Very little change is in the forecast for water level and flow at Willamette Falls in Oregon City, even with rain in the forecast. Flows... This post is only available to Members. If you are a Member, please be sure to log in. You can do this on the top right of almost any page on our site. If you want to become a member or find out more, take a look here.