Public Works

COVID-19 Response Alert


With the emergency closure of the County Administration Building in March 2020, the public is urged to perform all Snohomish County Public Works business by phone or through email. Staff will respond as promptly as possible, 8 a.m. to 5 p.m., Monday through Friday.

 Topic  Email | Web Page  Phone
Solid Waste (facility hours, recycling, hazardous waste, etc.) Email | Web Page 425-388-3425
Surface Water Management (drainage, water quality, etc.) Email | Web Page 425-388-3464
Road Maintenance (potholes, vegetation control, sign damage, flooding) Email | Web Page 425-388-7500
Roads Central (construction projects, engineering projects, etc.)  Email | Web Page 425-388-7623
Road Records and Permits (right-of-way permits and survey documents) Email | Web Page 425-388-6453
Traffic Operations (traffic signals, signs and traffic calming devices) If signal is out, call 911. Email | Web Page
Comment Form
425-388-6420 
More ... see our Services/Contacts page and FAQs

Our Services to You


Public Works is the largest department in Snohomish County and responsible for many services that affect residents’ lives on a daily basis.

Those services are divided into three main categories:
  • Roads: Developing and maintaining roads, bridges, traffic, and the general transportation system within unincorporated Snohomish County. 
  • Solid Waste: Overseeing the disposal of solid waste (trash and recycling) within all of Snohomish County.
  • Surface Water: Managing and monitoring surface water including storm water drainage and flooding, as well as water quality in rivers, streams, lakes, and aquatic habitat.

The mission of the department is to enhance the quality of life for present and future generations.

The department is committed to serving all residents by adhering to the Title VI section of the Federal Civil Rights Act of 1964 and the Americans with Disability Act. Visit the Public Works ADA page for more information.

Visit the About Public Works page for more information on the department.