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 Outer East subwatershed extends from the eastern edge of Portland’s combined sewer service area at about 82nd Avenue to about 160th Avenue and includes the area not within either the Columbia Slough or Johnson Creek watersheds. There are no stream channels in the subwatershed.
Maps & Files

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