1120 SW 5th Avenue, Room 1000, Portland, OR 97204
The City of Portland adopted a revised Stormwater Management Manual on January 2, 2014. As of January 2, 2014 project designers have the option of using the 2008 Stormwater Management Manual or the 2014 SWMM. Beginning April 2, 2014, project designers must use the 2014 SWMM. The 2008 SWMM information will remain available on the internet as reference.
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Manual navigator, quick start guide, table of contents and introduction
Stormwater Management Manual Chapters 1 through 4 and Definitions