Water Recovery Facility Outlet & Rock Creek Confluence

The Rock Creek Water Resource Recovery Facility releases 37 million gallons of clean water in the Tualatin River each day. The water comes out of a pipe at the bottom of the Tualatin River producing a bubbling effect. The Rock Creek Trail has an overlook of the outlet location.

The Rock Creek watershed is 75 square miles. Its headwaters are in the Portland West Hills. Its major tributary is Beaverton Creek which has Bronson Creek, Willow Creek and Cedar Mill Creek as tributaries. The Rock Creek Trail runs along sections of Rock Creek. Beaverton Creek has been the focus of significant restoration work.

Rock Creek was originally named Wilkins Creek after Caleb Wilkins. He along with fellow trappers Joe Meek and Robert Newell were some of the earliest European settlers in the Tualatin Valley arriving in 1841. Joe Meek eventually became Oregon’s first elected sheriff.

River Mile: 38.1