Annual mileage and travel information
Statewide mileage and travel information based on public roadway data provided annually to the Federal Highway Administration (FHWA).
The following mileage and travel information is provided to WSDOT by agencies throughout the state to support federal reporting requirements via the Highway Performance Monitoring System (HPMS). HPMS is a national set of data that is used by FHWA to assess the condition, performance and safety of the nation’s highways.
2022 miles and daily vehicle miles traveled (DVMT) information
|
Jurisdiction Level |
Centerline Miles in Miles |
Lane Miles in Miles |
Daily Vehicle Miles Traveled (1,000s) |
Annual Vehicle Miles Traveled (Millions) |
Percent of VMT
|
|---|---|---|---|---|---|
|
State Total [1] |
7,052.32 |
18,717 |
93,664 |
34,187 |
58.5% |
|
(Interstate) |
(763.58) |
(4,064) |
(45,892) |
(16,751) |
(28.6%) |
|
City |
17,738.91 |
37,108 |
40,019 |
14,607 |
25.0% |
|
County |
39,129,63 |
78,512 |
24,321 |
8,877 |
15.2% |
|
Other [2] |
15,586.47 |
31,185 |
2,223 |
811 |
1.4% |
|
Total |
79,507.33 |
165,521 |
160,227 |
58,483 |
100% |
[1]Interstate figures are also included in the State total. [2]Other Jurisdictions include State Dept. of Natural Resources, State Parks, Other State, Port Districts, Indian, U.S. Forest, and National Parks.
State highway mileage data is from State Highway Log; other data is from HPMS reporting
Historic public roadway vehicle miles traveled
This report, similar to the graphic above, contains historical centerline mile, lane mile and VMT data by year (back through 2002) for all public roadways in the state.
Public roadway VMT (XLSX 117KB)
Historic state highway vehicle miles traveled
This report contains historical centerline mile and VMT data by year for all roadways under state jurisdiction.
State highway VMT (XLSX 6.59MB)
HPMS annual reports
Historic HPMS reported mileage (XLSX 12.1KB)
Miles and daily VMT (XLSX 13KB)
HPMS mileage and daily travel summary (XLSX 27KB)
HPMS miles and VMT by county (XLSX 19KB)
HPMS miles and VMT by county and functional classification (XLSX 62KB)
HPMS miles by functional classification and owner (XLSX 17KB)
HPMS VMT by functional classification and owner (XLSX 19KB)
Mileage report for other (non-WSDOT) agency roads (XLSX 17KB)
Travel activity by vehicle type (XLSX 14KB)
HPMS Miles and VMT by county, owner, and city (XLSX 67KB)
Short Count Factoring Guide
Short Count Factoring Guide (PDF 963KB): This guide provides a general overview of traffic counting programs, as well as a more detailed discussion of suggested practice in relation to short duration traffic count field and office techniques. The intent is to encourage high standards and uniform practices among local traffic counting programs within the State of Washington so that an accurate representation of traffic on our public roadways is available to all interested parties. It is an informational guide only and does not constitute a specification or a statement of required practice.
166,800 electric vehicle
registrations in Washington in 2023, up from 114,600 in 2022.
87 wetland compensation sites
actively monitored on 918 acres in 2023.
25,000 safe animal crossings
in the Snoqualmie Pass East Project area since 2014.