Design Standards / EDDS

Amendments to the EDDS

  • January 2021 - Rule Making Action
On December 4, 2020, the Department of Public Works (DPW), pursuant to Snohomish County Code (SCC) 30.82.030 (Rulemaking), proposed amendments to Chapters 1, 3, 4, and 8 of the Snohomish County Engineering Design and Development Standards (EDDS). On January 8, 2021, the DPW, pursuant to SCC 30.82.040 (Rulemaking), is adopting the amendments to Chapters 1, 3, 4, and 8 of the EDDS with an effective date of January 8, 2021.
Request for County Council Review
Pursuant to 30.82.065 SCC interested persons may request a review of the adopted rules by the County Council within 120 days of rule adoption. A request for Council review should be emailed to the Snohomish County Council at or mailed to the Snohomish County Council at 3000 Rockefeller Ave M/S 609, Everett, WA 98201. Please copy Ryan Peterson at to council review request emails, or send a copy of council review request letters to Ryan Peterson at 3000 Rockefeller Ave M/S 607, Everett, WA 98201.

Current EDDS Edition (effective Jan. 8, 2021)

Previous EDDS Editions

Helpful Forms & Information

The following links are provided to useful forms and information:

Interim EDDS Administrative Interpretations

Pursuant to EDDS Section 1-04, the county engineer has the authority to approve Administrative Interpretations of the EDDS.

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