Public Works

Welcome to Snohomish County Public Works

COVID-19 Response Alert
With the emergency closure of the County Administration Building on March 17, 2020, the public is urged to perform any Snohomish County Public Works business over the phone or through email.

Staff is monitoring email several times daily and will respond as promptly as possible. Please call our office during business hours of 8 a.m. to 5 p.m. for up to date information and specific instructions on how to submit permit applications electronically. As the situation changes, we will attempt to keep this page updated.

Changes at Solid Waste facilities


Snohomish County Public Works has made service changes to all of its Solid Waste facilities in compliance with Governor Jay Inslee's "Stay at Home, Stay Safe" order during the current pandemic. Please visit the Solid Waste web page for updates and detailed information.

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.