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Maintenance Operations Home

WSDOT Workers doing nighttime paving work along I-5 
Whenever possible, we schedule maintenance at night when there is less traffic. Remember to slow down and pay attention in work zones.

WSDOT Highway Maintenance oversees the day-to-day needs of maintaining our state's highway system including:

  • 20,679 highway lane miles (includes ramps, collectors and special use lanes)
  • more than 3,000 bridges
  • 1,100 traffic signal systems
  • 10 major mountain passes kept open all year
  • close to 50 safety rest areas

Also, WSDOT Highway Maintenance manages a large fleet of roadway maintenance vehicles and support equipment.

Our job is to maintain the highway infrastructure in good working order, keep people safe, and goods moving 24-hours-a-day, 365-days-a-year.