West Slope, OR truck route planning & crash data
Plan safer truck routes in West Slope: commercial truck and garbage truck crashes in West Slope and Washington County, dangerous roads, seasonality and route safety data for fleets. Patterns use Washington 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 2.1 for all trucks.
Deadliest roads
How Washington County compares with Oregon
Washington County against Oregon and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Washington County stands out
Full comparison
| Measure (2015–2025) | Washington County | Oregon | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 20.6 | 41.0 | 49.7 | 50% below the state |
| Deaths per 100 crashes | 2.1 | 3.9 | 3.4 | 46% below the state |
| Injuries per crash | 0.32 | 0.35 | 0.49 | 9% below the state |
| Garbage-truck share | 3.5% | 2.0% | 2.3% | 1.8× the state |
| On snow, slush or ice | 2.6% | 13.3% | 6.2% | 80% below the state |
| Morning rush (6–10 am) | 27.0% | 24.2% | 23.7% | 1.1× the state |
| In rain, sleet or snow | 14.6% | 18.8% | 13.8% | 22% below the state |
| Winter months (Nov–Mar) | 38.9% | 45.1% | 41.9% | 14% below the state |
| After dark | 16.4% | 25.3% | 24.8% | 35% below the state |
Compared with Oregon, Washington County is lower on crashes per 100k residents / yr, deaths per 100 crashes and injuries per crash. Where it is higher: garbage-truck share and morning rush (6–10 am).
Washington County at a glance: 1 in 28 of truck crashes here involve garbage trucks: 3.5%, vs 2.0% in Oregon.
Overview
Since 2015, 1,473 crashes involving commercial trucks have been reported in Washington County. They injured 464 people and killed 29.
That averages about one truck crash every 3 days in fully reported years.
Only 0 truck crashes were reported in West Slope since 2015; patterns below come from Washington County as a whole.
When crashes happen
Truck crashes peak in September (10.2% of the year) and are lowest in February (6.4%).
The five winter months (November to March) hold 38.9% of truck crashes, against 45.1% across Oregon.
By time of day, 1–2 pm stands out with 8.9% of truck crashes.
Snow, slush or ice was on the road in 2.6% of truck crashes, compared with 13.3% in Oregon.
Where crashes happen
The deadliest road for trucks within 10 miles of West Slope is I-5, with 7 fatal large-truck crashes since 2015. It is followed by SR-99 (6), I-84 (3) and Ne Columbia Blvd (3).
Garbage & waste trucks
Garbage and refuse trucks were involved in 54 crashes, 3.7% of the total, against 2.0% across Oregon.
Their busiest month is May, with 17% of garbage-truck crashes.
They recorded 0.0 deaths per 100 crashes, against 2.1 for all trucks.
Route planning tips for West Slope fleets
- Review driver schedules for September, the month with the most truck crashes.
- Where you can, review stops along I-5; it has the most fatal large-truck crashes nearby.
- Garbage-truck crashes here peak in May; review collection routes for that month.
- 27.0% of truck crashes happen between 6 and 10 am, above Oregon; consider earlier or later starts where possible.
- Paste your stops into the free Route Planner to see the risk score, safer alternatives and low bridges.
About the data
Crash counts come from the FMCSA crash file (police-reported crashes involving trucks over 10,000 lb); fatal-crash locations come from NHTSA FARS. Text on this page states only what these numbers show.
Truck crashes by year: all trucks vs garbage trucks
Seasonality: when trucks crash in Washington County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| I-5 | 7 |
| SR-99 | 6 |
| I-84 | 3 |
| Ne Columbia Blvd | 3 |
| US-30 | 3 |
| SR-99W | 2 |
| US-26 | 2 |
| CR-JOHNSON Creek Blvd | 1 |
| I-205 | 1 |
| N Basin Ave | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Washington County) |
|---|---|
| I-5 .25 S Bridgeport Rd On Ramp | 6 |
| I-5 .07 N I-205 On Ramp | 5 |
| Hwy 47 & Maple St | 4 |
| I-5 .03 N I-205 Exit | 4 |
| I-5 .06 S I-205 On Ramp | 4 |
| I-5 .14 N Hwy 217 On Ramp | 4 |
| I-5 .21 S I-205 Exit | 4 |
| I-5 .25 N Nyberg Rd Exit | 4 |
West Slope at a glance
| Land area | 1.6 sq mi |
Waste facilities and haulers nearby
Historical data: truck crashes in Washington 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 | 41 | — | 2.0 |
| 2000s | 78 | +90% | 2.1 |
| 2010s | 115 | +47% | 1.8 |
| 2020s | 119 | +3% | 2.6 |
From the 1990s to the 2020s, yearly reported truck crashes went from 41 to 119. Some of the change may reflect how crashes were reported. Fatal crashes involving a large truck averaged 3.2 a year in 2016–19 and 2.6 a year in 2020–24.
Nearby places
Questions fleets ask about West Slope
How many truck crashes happen in West Slope?
1,473 truck crashes have been reported in Washington County since 2015, with 29 deaths and 464 injuries.
What is the most dangerous road for trucks in West Slope?
Since 2015, I-5 has had the most fatal large-truck crashes within 10 miles of West Slope: 7.
Which month has the most truck crashes in West Slope?
The worst month is September: 10.2% of truck crashes in Washington County happen then.
How many garbage truck crashes are there in West Slope?
Since 2015, Washington County has reported 54 garbage-truck crashes, or 3.7% of its truck crashes.
How does West Slope compare with Oregon for truck crashes?
Washington County records 20.6 truck crashes per 100,000 residents a year, against 41.0 across Oregon.
How do I plan a garbage truck route in West Slope?
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.