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Development Services

From Concept to Construction

Phone: 503-823-7300


1900 SW 4th Ave, Portland, OR 97201

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Learn About Changes to Portland’s Stormwater Management Manual (SWMM)

Stormwater Manual

If you missed the presentations in August, you have another opportunity! 

The 2016 SWMM goes into effect on November 21, 2016. Environmental Services will present the recent changes to the 2016 Stormwater Management Manual (SWMM). This presentation will cover minor technical changes and re-formatting of the SWMM. Anyone interested is welcome to attend.

November 17, 2016
1900 SW 4th Ave., Room 2500B
Portand, OR 97201   3:00 – 4:00 pm  
To view the SWMM

For More Information

View the flyer in PDF format.