Clackamas and Sandy River Fishing Reports for August 21st Posted on August 20, 2015 by Michael Teague Clackamas water levels have dropped below 10 feet at Estacada with the flow down to less than 700 cfs. Although it’s hard to imagine, the Sandy River is slightly lower... 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.