Washington Freight and Goods Transportation System

WSDOT designates and updates the FGTS system every two years to comply with state legislative requirements (RCW 47.05.021 (4)). FGTS update is also used by Freight Mobility Strategic Investment Board (FMSIB) in designating strategic freight corridors and determining project eligibility for their investment program. This report also supports regional and statewide planning efforts and informs freight investment decisions.

Freight corridor classifications

The Freight and Goods Transportation System (FGTS) classifies truck, rail and waterway corridors by the amount of freight they carry.

      Truck corridors

• T-1: More than 10 million tons per year.
• T-2: 4 million to 10 million tons per year.
• T-3: 300,000 to 4 million tons per year.
• T-4: 100,000 to 300,000 tons per year.
• T-5: At least 20,000 tons in 60 days.

      Rail corridors

• R-1: More than 5 million tons per year.
• R-2: 1 million to 5 million tons per year.
• R-3: 500,000 to 1 million tons per year.
• R-4: 100,000 to 500,000 tons per year.
• R-5: Fewer than 100,000 tons per year.

      Waterway corridors

• W-1: More than 25 million tons per year.
• W-2: 10 million to 25 million tons per year.
• W-3: 5 million to 10 million tons per year.
• W-4: 2.5 million to 5 million tons per year.
• W-5: 0.9 million to 2.5 million tons per year.

2025 FGTS report and map 

The 2025 FGTS report was initially released in December 2025 and amended in April 2026 to include additional county data. The 2025 update results have been adopted by the FMSIB board.

The following products are available: 

• 2025 FGTS update report - amended (PDF 826KB): describes purpose and requirements, designation criteria, update approach, and final results.
• Appendices to the 2025 report - amended (PDF 18519KB): includes corridor maps and list, update process, and instructions for tonnage estimation.
   

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Interactive map to view FGTS corridors

FGTS updated schedule and process

WSDOT updates the FGTS designation every two years, in odd-numbered years. The next update will take place in 2027.   

FGTS truck corridors include state highways, city streets, and county roads. WSDOT coordinates with MPOs/RTPOs to request city truck route data, and coordinates with the County Road Administration Board (CRAB) to incorporate county road data.  A typical two-year schedule for FGTS data request, collection, and reporting consists of the following.

Freight and Goods Transportation System update schedule

WSDOT updates the Freight and Goods Transportation System (FGTS) every two years. The schedule below shows key activities for WSDOT, counties, regional planning organizations, cities and ports.

Even years: Prepare for data collection

• June through July: WSDOT prepares for the next year’s FGTS data request.
• August: WSDOT sends MPOs and RTPOs an early notice about the next year’s data request and reporting timeline.
• September through December: MPOs, RTPOs, cities and ports coordinate to plan for and begin collecting truck-volume data.

Odd years: Collect, review and publish data

      County road data

• January: WSDOT coordinates with the County Road Administration Board (CRAB) on county-road FGTS data reporting.
• January through April: Counties report county-road FGTS data through the CRAB GIS-MO system. County data are due in April.
• July: CRAB provides certified county-road data to WSDOT.

      City truck-route data

• January: WSDOT validates truck-weight data used to estimate truck tonnage.
• February: WSDOT sends data requests to MPOs and RTPOs.
• March through May: MPOs, RTPOs, cities and ports coordinate to complete data-request forms.
• June: MPOs and RTPOs submit completed regional data forms to WSDOT.

      WSDOT review and publication

• July through October: WSDOT reviews and validates the submitted data and integrates it with state-highway data.
• November: WSDOT submits strategic freight corridors to the Freight Mobility Strategic Investment Board (FMSIB) for adoption.
• December: WSDOT finalizes and publishes the FGTS data report and mapping tool.

What data will be requested for 2027 FGTS

WSDOT will request FGTS classification data (T-1 to T-5), and supporting truck volume and tonnage data from cities, ports, and MPO/RTPOs:

• T-1 and T-2 Corridors (routes carrying more than four million tons of freight annually): Truck volume data collected on or after January 1, 2023, is required. Data older than 2023 will not qualify for T-1/T-2 designation. This requirement also applies to any corridor with GAP status (corridors previously identified as T-1 or T-2 but lacking recent data to support a classification). 
• T-3 through T-5 corridors (routes carrying less than four million tons annually): Truck volume data collected on or after January 1, 2023, or later is recommended.

Resources

• FGTS truck tonnage estimation method: Shows how to estimate truck tonnage from truck traffic counts.
• WSDOT short count factoring guide: Provides suggested practice to local agencies for conducting and processing traffic count data. This recommends collecting a minimum of 48 hours of valid count data on weekdays, with 72 hours as ideal, and avoiding Friday noon through Sundays and holidays due to variable traffic patterns.
• Online interactive map application: Locate any FGTS corridors and view supporting truck volume and tonnage data through an interactive mapping tool.