Phone: 503-823-7740 Fax: 503-823-6995 1120 SW 5th Avenue, Room 1000, Portland, OR 97204

More Contact Info (http://www.portlandoregon.gov//bes/article/87768)

Environmental Services

working for clean rivers

Stormwater Management Manual (SWMM)

The Stormwater Management Manual (SWMM) provides

policy and design requirements for stormwater management throughout the City of Portland. The requirements in the manual apply to all

development, redevelopment, and improvement projects within the City of Portland on private and public property and in the public rightof-way. Environmental Services completed revising the Stormwater Management Manual in 2013 to meet current regulatory requirements

and recently adopted policies.

The City of Portland adopted the revised SWMM on January 2, 2014. As of April 2, 2014, project designers must use the 2014 SWMM.

You can use the links on this page to access the manual or pick up a free compact disc version of the 2014 SWMM at the Development

Services Center,1900 SW 4th Avenue in Portland. To get a free CD by mail, please call 503-823-7103.

2014 Stormwater Management Manual

Introduction (http://www.portlandoregon.gov/article/474051)

Chapter 1: Requirements and Policies (http://www.portlandoregon.gov/article/474043)

Chapter 2: Facility Design (http://www.portlandoregon.gov/article/474045)

Chapter 3: Operations and Maintenance (http://www.portlandoregon.gov/article/474047)

Chapter 4: Source Controls (http://www.portlandoregon.gov/article/474048)

Definitions (http://www.portlandoregon.gov/article/474049)

Resources and References (http://www.portlandoregon.gov/article/474050)

Index (http://www.portlandoregon.gov/article/474736)

Appendix A

Appendix A.1: City Code (http://www.portlandoregon.gov/article/474055)

Appendix A.2: Policy Framework and Revision Process (http://www.portlandoregon.gov/article/474056)

Appendix A.3: Drainage Reserves (http://www.portlandoregon.gov/article/474057)

Appendix A.4: Culverts and Outfalls (http://www.portlandoregon.gov/article/474058)

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Appendix A.5: Stormwater Retrofits (http://www.portlandoregon.gov/article/474059)

Appendix B

Appendix B: Submission Guidelines for Manufactured Stormwater Treatment Technologies (http://www.portlandoregon.gov/article/474726)

Manufactured Stormwater Treatment Technologies Application and Renewal Form (http://www.portlandoregon.gov/article/488918)

Approved Manufactured Stormwater Treatment Technologies

Filterra Bioretention Systems Approval Package (http://www.portlandoregon.gov/article/536812)

Approved Manufactured Stormwater Treatment Technologies (revised 7/9/15) (http://www.portlandoregon.gov/article/474375)

Appendix C

Appendix C.1 Santa Barbara Urban Hydrograph Method (http://www.portlandoregon.gov/article/474156)

Appendix C.2 Simplified Approach Sizing Calculations (http://www.portlandoregon.gov/article/474157)

Approved Stormwater Sizing Calculators (http://www.portlandoregon.gov/article/474158)

Presumptive Approach Calculator (Excel) (http://www.portlandoregon.gov/article/474159)

PAC User's Manual (http://www.portlandoregon.gov/article/474160)

Appendix D

Appendix D.1 Landscape Submittal Guide (http://www.portlandoregon.gov/article/474161)

Appendix D.2 Land Use Submittal Guide (http://www.portlandoregon.gov/article/474162)

Appendix D.3 Simplified Approach Submittal Guide (http://www.portlandoregon.gov/article/474163)

Simplified Approach Form (SWMM Form 1) (http://www.portlandoregon.gov/article/474735)

Appendix D.4 Presumptive Approach Submittal Guide (http://www.portlandoregon.gov/article/474170)

Appendix D.5 Performance Approach Submittal Guide (http://www.portlandoregon.gov/article/474171)

Appendix D.6 Operations and Maintenance Submittal Guide (http://www.portlandoregon.gov/article/474172)

Operations and Maintenance Form (SWMM Form 2) (http://www.portlandoregon.gov/article/474734)

Appendix D.7 Special Circumstances Submittal Guide (http://www.portlandoregon.gov/article/474173)

Special Circumstances Application (SWMM Form 3a) (http://www.portlandoregon.gov/article/474733)

Special Circumstances Application (SWMM Form 3b) (http://www.portlandoregon.gov/article/474732)

Appendix D.8 Dewatering Submittal Guide (http://www.portlandoregon.gov/article/474174)

Source Control Dewatering Application (SWMM Form 4) (http://www.portlandoregon.gov/article/474731)

Appendix D.9.Source Control Administrative Reviews and Appeals Submittal Guide (http://www.portlandoregon.gov/article/474175)

Source Control Batch Discharge Application (SWMM Form 5) (http://www.portlandoregon.gov/article/474730)

Source Control Submeter Application (SWMM Form 6) (http://www.portlandoregon.gov/article/474729)

Source Control Long-Term Dewatering Application (SWMM Form 7) (http://www.portlandoregon.gov/article/474728)

Source Control Special Circumstances Application (SWMM Form 8) (http://www.portlandoregon.gov/article/474727)

Appendix E

Appendix E Pollution Reduction Storm Report (http://www.portlandoregon.gov/article/474183)

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Appendix F

Appendix F.1 Depth to Groundwater Investigation (http://www.portlandoregon.gov/article/474185)

Appendix F.2 Infiltration Testing (http://www.portlandoregon.gov/article/474187)

Appendix F.3 Blended Soil Specification (http://www.portlandoregon.gov/article/474188)

2016 Stormwater Facility Soil Vendors and Haulers (http://www.portlandoregon.gov/article/477618)

Appendix F.4 Planting Template and Plant Lists (http://www.portlandoregon.gov/article/474189)

Appendix G

Appendix G.1 Simplified and Presumptive Approach Facility Details (.pdf) (http://www.portlandoregon.gov/article/474208)

Appendix G.1 Simplified and Presumptive Approach Facility Details (.dwg) (http://www.portlandoregon.gov/article/474215)

Appendix G.2 Performance Approach Facility Details (.pdf) (http://www.portlandoregon.gov/article/474216)

Appendix G.2 Performance Approach Facility Details (.dwg) (http://www.portlandoregon.gov/article/474217)

Appendix G.3 Green Street Details (.pdf) (http://www.portlandoregon.gov/article/474218)

Appendix G.3 Green Street Details (.dwg) (http://www.portlandoregon.gov/article/474219)

Appendix G.4 Green Street Inventory Sheet (http://www.portlandoregon.gov/article/474226)

Appendix G.5 Source Control and other Supplemental Details (.pdf) (http://www.portlandoregon.gov/article/474228)

Appendix G.5 Source Control and other Supplemental Details (.dwg) (http://www.portlandoregon.gov/article/474229)

2008 Stormwater Management Manual

Manual Navigator

Introduction (http://www.portlandoregon.gov/article/205454)

Table of Contents (http://www.portlandoregon.gov/article/205453)

Quick Start Guide (http://www.portlandoregon.gov/article/205452)

Manual Navigator (http://www.portlandoregon.gov/article/205451)

Index (http://www.portlandoregon.gov/article/205455)

Chapters and Definitions

Chapter 1 (http://www.portlandoregon.gov/article/202882)

Chapter 2 (http://www.portlandoregon.gov/article/202883)

Chapter 3 (http://www.portlandoregon.gov/article/202884)

Chapter 4 (http://www.portlandoregon.gov/article/202885)

Definitions (http://www.portlandoregon.gov/article/202886)

Appendices

Appendix A (http://www.portlandoregon.gov/47955)

Appendix B (http://www.portlandoregon.gov/47956)

Appendix C (http://www.portlandoregon.gov/47958)

Appendix D (http://www.portlandoregon.gov/47959)

Appendix E (http://www.portlandoregon.gov/64072)

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Appendix F (http://www.portlandoregon.gov/47962)

Appendix G (http://www.portlandoregon.gov/47963)

Appendix H (http://www.portlandoregon.gov/64073)

References and Resources

References and Resources (http://www.portlandoregon.gov/article/426217)

Frequently Asked Questions (http://www.portlandoregon.gov/article/243472)

Green Street Site Assessment Checklist (http://www.portlandoregon.gov/article/343454)

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