Dayton, WA truck route planning & crash data
Plan safer truck routes in Dayton: commercial truck and garbage truck crashes in Dayton and Columbia County, dangerous roads, seasonality and route safety data for fleets. Patterns use Columbia County numbers.
Where fatal truck crashes happened
Risk scorecard
Key findings
Snapshot
Crashes by month
Garbage trucks vs all trucks
1 of 36 truck crashes since 2015.
Deadliest roads
How Columbia County compares with Washington
Columbia County against Washington and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Columbia County stands out
Full comparison
| Measure (2015–2025) | Columbia County | Washington | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 79.1 | 25.8 | 49.7 | 3.1× the state |
| Deaths per 100 crashes | 2.9 | 3.4 | 3.4 | 15% below the state |
| Injuries per crash | 0.20 | 0.18 | 0.49 | 1.1× the state |
| Garbage-truck share | 2.9% | 2.2% | 2.3% | 1.3× the state |
| On snow, slush or ice | 8.6% | 9.7% | 6.2% | 12% below the state |
| Morning rush (6–10 am) | 28.6% | 24.8% | 23.7% | 1.2× the state |
| In rain, sleet or snow | 5.7% | 20.2% | 13.8% | 72% below the state |
| Winter months (Nov–Mar) | 25.7% | 43.8% | 41.9% | 41% below the state |
| After dark | 14.3% | 25.2% | 24.8% | 43% below the state |
Compared with Washington, Columbia County is lower on deaths per 100 crashes, on snow, slush or ice and in rain, sleet or snow. It runs above Washington on crashes per 100k residents / yr, injuries per crash and garbage-truck share.
Columbia County at a glance: August the month with the most truck crashes: 22.2% of the year's total.
Overview
Police reported 36 crashes involving commercial trucks in Columbia County since 2015: 8 people were injured and 1 were killed.
That averages about one truck crash every 115 days in fully reported years.
With 29 truck crashes reported in Dayton since 2015, this page uses Columbia County numbers for its patterns and comparisons.
When crashes happen
Truck crashes peak in August (22.2% of the year) and are lowest in January (2.8%).
November through March accounts for 25.7% of truck crashes here, compared with 43.8% in Washington.
More truck crashes happen at 7–8 am than at any other hour (13.9%).
Snow, slush or ice was on the road in 8.6% of truck crashes, compared with 9.7% in Washington.
Where crashes happen
Since 2015, fatal crashes with a large truck within 10 miles of Dayton happened on US-12 (1); no road leads clearly.
Garbage & waste trucks
1 crash involved a garbage or refuse truck, a 2.8% share (Washington: 2.2%).
Route planning tips for Dayton fleets
- Plan August schedules with more margin; it is the worst month for truck crashes in Columbia County.
- The morning rush (6–10 am) holds 28.6% of truck crashes here, more than Washington; adjust start times where you can.
- Check your own stops for crash hotspots and low bridges with the free Route Planner.
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 Columbia County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| US-12 | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Columbia County) |
|---|---|
| Sr-12*366.00 | 2 |
| Sr-12*377.00 | 2 |
| E Main St Blk 400 | 1 |
| Main St/Tucannon St | 1 |
| Payne Hollow/Harting Grade | 1 |
| Sr-12*360.00 | 1 |
| Sr-12*360.20 | 1 |
| Sr-12*361.10 | 1 |
Dayton at a glance
| Population | 2,471 |
| Land area | 1.4 sq mi |
| Density | 1,714 per sq mi |
| Median household income (ZIP 99328) | $72,756 |
| Median home value (ZIP 99328) | $270,659 |
Waste facilities and haulers nearby
Historical data: truck crashes in Columbia 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 | 3 | — | 0.2 |
| 2000s | 2 | -43% | 0.2 |
| 2010s | 4 | +129% | 0.1 |
| 2020s | 2 | -36% | 0.0 |
Reported truck crashes averaged 3 a year in the 1990s and 2 a year in the 2020s. Reporting practices changed over time, so part of any change can come from reporting. NHTSA counts 0.2 fatal large-truck crashes a year in 2016–19 and 0.0 a year in 2020–24.
Nearby places
Questions fleets ask about Dayton
How many truck crashes happen in Dayton?
Since 2015, 36 crashes involving commercial trucks were reported in Columbia County (8 injured, 1 killed).
When do most truck crashes happen in Dayton?
Truck crashes in Columbia County peak in August, with 22.2% of the year's crashes.
Are garbage truck crashes common in Dayton?
Since 2015, Columbia County has reported 1 garbage-truck crash, or 2.8% of its truck crashes.
How do truck crashes in Dayton compare with Washington?
Per 100,000 residents, Columbia County has 79.1 truck crashes a year; Washington has 25.8.
What is the best way to plan truck routes in Dayton?
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.