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 Holladay -Sullivan subwatershed extends from near NE 50th Avenue to the Willamette River between the Broadway and Steel Bridges and from near NE Fremont to I-84. The subwatershed is defined as the Holladay and Sullivan sewer basins. There are no stream channels in the subwatershed.
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