Snoqualmie Pass, WA truck route planning & crash data
Plan safer truck routes in Snoqualmie Pass: commercial truck and garbage truck crashes in Snoqualmie Pass and Kittitas County, dangerous roads, seasonality and route safety data for fleets. Patterns use Kittitas County numbers.
Where fatal truck crashes happened
Risk scorecard
Key findings
Snapshot
Crashes by month
Garbage trucks vs all trucks
5 of 1,375 truck crashes since 2015.
Deadliest roads
How Kittitas County compares with Washington
Kittitas County against Washington and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Kittitas County stands out
Full comparison
| Measure (2015–2025) | Kittitas County | Washington | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 248.4 | 25.8 | 49.7 | 9.6× the state |
| Deaths per 100 crashes | 2.0 | 3.4 | 3.4 | 41% below the state |
| Injuries per crash | 0.10 | 0.18 | 0.49 | 44% below the state |
| Garbage-truck share | 0.4% | 2.2% | 2.3% | 83% below the state |
| On snow, slush or ice | 35.2% | 9.7% | 6.2% | 3.6× the state |
| Morning rush (6–10 am) | 21.7% | 24.8% | 23.7% | 12% below the state |
| In rain, sleet or snow | 32.8% | 20.2% | 13.8% | 1.6× the state |
| Winter months (Nov–Mar) | 55.1% | 43.8% | 41.9% | 1.3× the state |
| After dark | 33.5% | 25.2% | 24.8% | 1.3× the state |
Compared with Washington, Kittitas County is lower on deaths per 100 crashes, injuries per crash and garbage-truck share. Where it is higher: crashes per 100k residents / yr, on snow, slush or ice and in rain, sleet or snow.
The headline for Kittitas County: 35.2% of truck crashes happened on snow, slush or ice, vs 9.7% in Washington.
Overview
Police reported 1,375 crashes involving commercial trucks in Kittitas County since 2015: 142 people were injured and 28 were killed.
In complete reporting years that works out to about one truck crash every 3 days.
Snoqualmie Pass had 0 reported truck crashes since 2015, too few for reliable patterns, so the charts and findings on this page use Kittitas County numbers.
When crashes happen
The worst month is December with 15.0% of truck crashes; the quietest is April at 5.0%.
November through March accounts for 55.1% of truck crashes here, compared with 43.8% in Washington.
The busiest hour is 5–6 am, with 6.8% of truck crashes.
Snow, slush or ice was on the road in 35.2% of truck crashes, compared with 9.7% in Washington.
Where crashes happen
The deadliest road for trucks within 10 miles of Snoqualmie Pass is I-90, with 5 fatal large-truck crashes since 2015.
Garbage & waste trucks
5 crashes involved a garbage or refuse truck, a 0.4% share (Washington: 2.2%).
Route planning tips for Snoqualmie Pass fleets
- Build extra time into December routes: it has the most truck crashes here.
- Where you can, review stops along I-90; it has the most fatal large-truck crashes nearby.
- With 35.2% of truck crashes on snow, slush or ice (above Washington), plan winter equipment checks early.
- Check your own stops for crash hotspots and low bridges with the free Route Planner.
About the data
This report uses the FMCSA crash file (reported crashes of trucks over 10,000 lb) and NHTSA FARS (fatal crashes). It reports the numbers without guessing at reasons.
Truck crashes by year: all trucks vs garbage trucks
Seasonality: when trucks crash in Kittitas County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| I-90 | 5 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Kittitas County) |
|---|---|
| Sr-10*103.60 | 5 |
| Sr-97*163.20 | 4 |
| I-90 Mp 114.90 | 3 |
| Sr-97*150.00 | 3 |
| Sr-97*153.00 | 3 |
| Sr-97*163.00 | 3 |
| Sr-97*165.00 | 3 |
| Canyon Rd Blk 7100 | 2 |
Snoqualmie Pass at a glance
| Land area | 2.9 sq mi |
| Median household income (ZIP 98068) | $100,096 |
Waste facilities and haulers nearby
Historical data: truck crashes in Kittitas County since the 1990s
Combines the FMCSA crash file (all reported truck crashes, real coverage from about 1990) with NHTSA FARS (fatal crashes involving a large truck, 1982–2024).
| Decade | Truck crashes / yr | Change | Fatal crashes / yr (FARS) |
|---|---|---|---|
| 1990s | 71 | — | 2.0 |
| 2000s | 72 | +2% | 1.5 |
| 2010s | 108 | +49% | 1.5 |
| 2020s | 119 | +11% | 1.6 |
Reported truck crashes averaged 71 a year in the 1990s and 119 a year in the 2020s. Reporting practices changed over time, so part of any change can come from reporting. NHTSA counts 2.8 fatal large-truck crashes a year in 2016–19 and 1.6 a year in 2020–24.
Nearby places
Questions fleets ask about Snoqualmie Pass
How many truck accidents are there in Snoqualmie Pass?
Since 2015, 1,375 crashes involving commercial trucks were reported in Kittitas County (142 injured, 28 killed).
What is the most dangerous road for trucks in Snoqualmie Pass?
NHTSA data shows I-90 with 5 fatal large-truck crashes within 10 miles of Snoqualmie Pass since 2015, the highest of any road.
What is the worst month for truck crashes in Snoqualmie Pass?
Truck crashes in Kittitas County peak in December, with 15.0% of the year's crashes.
How many garbage truck crashes are there in Snoqualmie Pass?
Garbage trucks were involved in 5 reported crashes in Kittitas County since 2015 (0.4% of truck crashes).
How do truck crashes in Snoqualmie Pass compare with Washington?
Per 100,000 residents, Kittitas County has 248.4 truck crashes a year; Washington has 25.8.
How do I plan a garbage truck route in Snoqualmie Pass?
The free Route Planner takes your stops and returns a route risk score, safer alternatives and low-bridge warnings.
2026 is a partial year. Updated October 2026.