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Environmental Services
Updates to Public Works Standards and Stormwater Management Manual
The City proposes amendments to its Public Works Standards and Stormwater Management Manual. Review the proposed amendments below. Draft documents were originally posted on February 2, 2026. Following internal and external review, they were updated on April 1, 2026.
Proposed update to the Public Works Standards
There are no updates proposed for the chapters and details that are omitted.
- Chapter 4 - Stormwater Drainage System Design (Excerpt)
- Chapter 5 - Water System Design (Excerpt)
- Chapter 6 - Transportation Design (Excerpt)
- Chapter 200 - General Technical Requirements (Excerpt)
- Chapter 300 - Wastewater Technical Requirements (Excerpt)
- Chapter 500 - Water Technical Requirements (Excerpt)
- General Details (Excerpt)
- Stormwater Details (Excerpt)
- Wastewater Details (Excerpt)
- Water Details (Excerpt)
- Transportation Details (Excerpt)
- Green Street Details (Excerpt)
Proposed update to the Stormwater Management Manual
There are no updates proposed for the chapters and details that are omitted.
- Chapter 1 Requirements
- Chapter 2 Stormwater Facility Sizing and Submittals
- Chapter 3 Facility Design
- Appendix D Stormwater Facilities Sizing Form
- Appendix F Soil and Mulch Specifications
- Appendix G Stormwater Facility Planting
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Comments can be emailed to Michelle.Kimble@GreshamOregon.gov.
