POL Government Bureaus & Offices Environmental Services What We Do Watershed Management Portland's Watersheds Willamette Watershed Willamette Watershed Characterization Report  Willamette Subwatersheds   Conditions unique to each of the 27 Willamette subwatersheds
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The Riverside subwatershed extends from N Killingsworth Street to a few blocks south of N Going Street and from the top of the bluff just east of N Greeley Avenue to a few blocks east of Interstate-5. It also ncludes a small portion of Swan Island souht of N Going Street. The subatershed consists of a mix of residential, commercial, and industrial uses. There are no stream channels in the subwatershed.
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