Figures (6)  Tables (0)

    • Figure 1. 

      (a) Location of 2020 Labor Day wildfires in WA[31]. (b) Locations of Highways 97 and 155 within the 2020 Cold Springs Canyon wildfire[32]. (c) Locations of Highways 2, 17, and 172 within the 2020 Pearl Hill wildfire[33]. (d) Location of Highway 2 within the 2020 Whitney wildfire[33].

    • Figure 2. 

      (a) Location of 2020 Labor Day wildfires in OR[34]. (b) Location of Highway 224 within the 2020 Riverside wildfire[35]. (c) Location of Highway 22 within the 2020 Beachie Creek wild.fire[36]. (d) Location of Highway 22 within the 2020 Lionshead wildfire[37]. (e) Location of Highway 126 within the 2020 Holiday Farm wildfire[38]. (f) Location of Highway 138, within the 2020 Archie Creek wildfire[39].

    • Figure 3. 

      (a) Location of 2020 Labor Day wildfires in CA[40]. (b) Location of Highway 36 within the 2020 August Complex wildfire[41]. (c) Location of Highway 168 within the 2020 Creek wildfire[42]. (d) Location of Highway 162 within the 2020 North Complex wildfire[43]. (e) Location of Highway 130 within the 2020 SCU Lightning Complex wildfire[44]. (f) Location of Highways 16, 80, 121 and 128, within the 2020 LNU Lightning Complex wildfire[44].

    • Figure 4. 

      Historical megafires in Washington, Oregon, and California, 1845–2023.

    • Figure 5. 

      Historical causes of megafires by state, 1845–2023.

    • Figure 6. 

      Length of highway (km) per state vs estimated overall damage costs due to the 2020 Labor Day wildfires.