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Kittitas County I Snoqualmie Pass Comprehensive Safety Plan 30 <br />Collision Trends <br />Kittitas County & King County <br />Traffic fatalities and serious injuries on all roads in Kittitas Counry and King Counry have risen over the 1O-year period <br />trom zoT4to2o23,highlighting a growing safetyconcern, as illustrated in Figure 11and FigureL?! <br />Figure 11. KSI Collisions byYear in Kittitas Coun{ (2014 - 2023t- <br />Source: Washington State Traffic Safety Commission Crash DaIa,2Ot4-2O23. <br />4t 40 <br />38 <br />34 <br />31 <br />2074 2075 2076 2077 2078 2079 2020 2021 2022 2023 <br />Snoqualmie Pass <br />Collision data from 2}14to 2O23was <br />analyzed for local roads, SR 906, and che on- <br />and off-ramps of I-90 within the Snoqualmie <br />Pass area. Over this lO-year period, a total of <br />107 collisions were reported. <br />Of these, one collision was fatal and two resulted in <br />life-altering serious injuries (Figure 13). ln addition to <br />vehicle-only collisions, there were also collisions involving <br />pedestrians, bicyclists, and motorcyclists, also referred to as <br />vulnerable road users (Figure 14 and Figure 15). A significant <br />share of collisions-81 of the 107 (76%')-occurred on SR 906 <br />or the l-90 ramps. All three KSI collisions were vehicle-only <br />and took place on SR 906 or l-90 ramps (Figure 16). <br />Figure 72. KSI Collisions byYear in King County (2074 - 2023l. <br />Source: Washington State Traffic Safety Commission Crash Data,2074-2023. <br />924 <br />854 <br />763 <br />635 646 <br />597 657 634 <br />2014 2075 2076 2017 2018 2079 2020 2027 2022 202s <br />32 <br />6093155128 <br />Figure 13. Collisions byYear & InjuryType <br />in Snoqualmie Pass (2014 - 2023!, <br />Source: Fehr & Peers, 2025. <br />O Killed or Serious I Suspected Minor lnjury- lnjury (KSl) Collisions or Possible lnjury Collisions <br />ffi <br />Figure 14. Collisions by Road User <br />Type in Snoqualmie Pass (2014 - 20231 <br />Source: Fehr & Peers, 2025. <br />RoadLJser <br />T\rpe <br />1f' Property Damage <br />Only (PDO) Collisions <br />ffi Vehicle-only <br />Collisions * <br />1 <br />4 <br />hftr)s: /wtqc wa.govldashboards /f atalities-dashhoard/ accessed May 2025. <br />2074 207s 2015 2077 2078 2019 2020 2021 2022 2023 <br />G&Vulnerable Road <br />User Collisions