Permits

To apply for stormwater management plans, right of way permits, road approach permits, sewer permits, or special use or event permits, please apply online through the County permit portal by clicking the "Continue to the Permit Portal" button below.

Access the online permit system:

Continue to the Permit Portal

For more information about our permits and best management practices (BMP), see the PDF files below.

Stormwater Management Plans

  1. Dispersion Trench and Splash Block Detail and Conditions
  2. Drywell Detail and Conditions
  3. Construction and Erosion BMP
  4. Residential Driveway BMP
  5. Infiltration Trench Detail and Conditions
  6. Rain Garden Detail
  7. Rain Garden Handbook for Western Washington

Road Approach Permits

  1. Road Approach BMP

Right of Way Permits

  1. Right of Way BMP

Sewer Permits

  1. Sewer Permit Checklists (PDF)

For over-width over-weight and road vacation permits, please download the applications below, fill them out and return them to the County Public Works Department.

Over-Width, Over-Weight

  1. Over-Width, Over-Weight Permit (PDF)

Road Vacation

  1. Petition for vacation of a county road