Oso, WA truck route planning & crash data
Plan safer truck routes in Oso: commercial truck and garbage truck crashes in Oso and Snohomish County, dangerous roads, seasonality and route safety data for fleets. Patterns use Snohomish County numbers.
Where fatal truck crashes happened
Risk scorecard
Key findings
Snapshot
Crashes by month
Garbage trucks vs all trucks
0.0 deaths per 100 garbage-truck crashes vs 3.7 for all trucks.
Deadliest roads
How Snohomish County compares with Washington
Snohomish County against Washington and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Snohomish County stands out
Full comparison
| Measure (2015–2025) | Snohomish County | Washington | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 14.4 | 25.8 | 49.7 | 44% below the state |
| Deaths per 100 crashes | 3.7 | 3.4 | 3.4 | 1.1× the state |
| Injuries per crash | 0.18 | 0.18 | 0.49 | same |
| Garbage-truck share | 3.3% | 2.2% | 2.3% | 1.5× the state |
| On snow, slush or ice | 3.1% | 9.7% | 6.2% | 68% below the state |
| Morning rush (6–10 am) | 25.0% | 24.8% | 23.7% | same |
| In rain, sleet or snow | 19.5% | 20.2% | 13.8% | same |
| Winter months (Nov–Mar) | 40.6% | 43.8% | 41.9% | 7% below the state |
| After dark | 20.6% | 25.2% | 24.8% | 18% below the state |
Snohomish County has lower values than Washington for crashes per 100k residents / yr, on snow, slush or ice and winter months (nov–mar). It stands out for higher deaths per 100 crashes and garbage-truck share.
Snohomish County at a glance: 1 in 30 garbage-truck share of crashes is 3.3%, against 2.2% for Washington.
Overview
Police reported 1,445 crashes involving commercial trucks in Snohomish County since 2015: 279 people were injured and 53 were killed.
Across the years with complete reporting, that is roughly one truck crash every 3 days.
Oso had 0 reported truck crashes since 2015, too few for reliable patterns, so the charts and findings on this page use Snohomish County numbers.
When crashes happen
The worst month is October with 9.8% of truck crashes; the quietest is March at 7.3%.
Winter months (Nov–Mar) carry 40.6% of truck crashes, vs 43.8% for Washington.
More truck crashes happen at 8–9 am than at any other hour (8.2%).
3.1% of truck crashes here happened on snow, slush or ice, against 9.7% across Washington.
Where crashes happen
Roads with fatal crashes involving a large truck within 10 miles of Oso since 2015: SR-530 (1). No single road stands out.
Garbage & waste trucks
Garbage trucks account for 48 of the truck crashes here, or 3.3%, compared with 2.2% in Washington.
Garbage-truck crashes peak in April (12% of them).
Deaths per 100 garbage-truck crashes: 0.0, vs 3.7 for all truck crashes.
Route planning tips for Oso fleets
- Review driver schedules for October, the month with the most truck crashes.
- Garbage-truck crashes here peak in April; review collection routes for that month.
- Use the free Route Planner to score your route and spot low bridges before drivers head out.
About the data
Sources: the FMCSA crash file for all reported truck crashes and NHTSA FARS for fatal crashes with a large truck. Every statement here comes straight from those numbers.
Truck crashes by year: all trucks vs garbage trucks
Seasonality: when trucks crash in Snohomish County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| SR-530 | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Snohomish County) |
|---|---|
| Sr-9*000.20 | 4 |
| 84Th St Ne Blk 12300 | 3 |
| Hardeson Rd/Shuksan Way | 3 |
| I-405 Mp 025.00 | 3 |
| Sr-2*001.00 | 3 |
| Sr-530*016.95 | 3 |
| Sr-530*019.71 | 3 |
| Sr-532*006.45 | 3 |
Oso at a glance
| Land area | 2.8 sq mi |
| Median household income (ZIP 98223) | $99,681 |
| Median home value (ZIP 98223) | $589,765 |
Waste facilities and haulers nearby
Historical data: truck crashes in Snohomish 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 | 78 | — | 4.2 |
| 2000s | 95 | +22% | 3.4 |
| 2010s | 111 | +17% | 2.2 |
| 2020s | 128 | +15% | 3.0 |
Reported truck crashes averaged 78 a year in the 1990s and 128 a year in the 2020s. Reporting practices changed over time, so part of any change can come from reporting. Fatal crashes involving a large truck averaged 4.0 a year in 2016–19 and 3.0 a year in 2020–24.
Nearby places
Questions fleets ask about Oso
How common are truck crashes in Oso?
Since 2015, 1,445 crashes involving commercial trucks were reported in Snohomish County (279 injured, 53 killed).
Which month has the most truck crashes in Oso?
Truck crashes in Snohomish County peak in October, with 9.8% of the year's crashes.
How many garbage truck crashes are there in Oso?
Garbage trucks were involved in 48 reported crashes in Snohomish County since 2015 (3.3% of truck crashes).
How does Oso compare with Washington for truck crashes?
The yearly rate is 14.4 truck crashes per 100,000 residents in Snohomish County, vs 25.8 for Washington.
What is the best way to plan truck routes in Oso?
Use the free Route Planner: enter your stops to get a risk score, safer alternatives and the low bridges on your route.
2026 is a partial year. Updated October 2026.