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

In addition, 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.

Contact us for questions or more information.

Maintenance Operations

• Adopt-a-Highway
• Litter control
• Give 'em a Brake
• Safety Rest Areas
• Vegetation management
• Winter driving
• Winter operations

Performance Measure

• Maintenance Accountability Process

Wildlife Management

• RRMP endangered species guidelines
• Reducing the risk of wildlife collisions
• Fish Passage

Fleet & Equipment

• Fleet & equipment information