Allyn, WA truck route planning & crash data
Plan safer truck routes in Allyn: commercial truck and garbage truck crashes in Allyn and Mason County, dangerous roads, seasonality and route safety data for fleets. Patterns use Mason County numbers.
Where fatal truck crashes happened
Risk scorecard
Key findings
Snapshot
Crashes by month
Garbage trucks vs all trucks
2 of 135 truck crashes since 2015.
Deadliest roads
How Mason County compares with Washington
Mason County against Washington and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Mason County stands out
Full comparison
| Measure (2015–2025) | Mason County | Washington | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 16.5 | 25.8 | 49.7 | 36% below the state |
| Deaths per 100 crashes | 8.7 | 3.4 | 3.4 | 2.6× the state |
| Injuries per crash | 0.25 | 0.18 | 0.49 | 1.4× the state |
| Garbage-truck share | 1.6% | 2.2% | 2.3% | 27% below the state |
| On snow, slush or ice | 8.7% | 9.7% | 6.2% | 10% below the state |
| Morning rush (6–10 am) | 29.4% | 24.8% | 23.7% | 1.2× the state |
| In rain, sleet or snow | 20.6% | 20.2% | 13.8% | same |
| Winter months (Nov–Mar) | 45.2% | 43.8% | 41.9% | same |
| After dark | 17.5% | 25.2% | 24.8% | 31% below the state |
Mason County has lower values than Washington for crashes per 100k residents / yr, garbage-truck share and on snow, slush or ice. It runs above Washington on deaths per 100 crashes, injuries per crash and morning rush (6–10 am).
Mason County at a glance: 8.7 deaths per 100 truck crashes, vs 3.4 in Washington.
Overview
Since 2015, 135 crashes involving commercial trucks have been reported in Mason County. They injured 34 people and killed 11.
Across the years with complete reporting, that is roughly one truck crash every 32 days.
Allyn had 0 reported truck crashes since 2015, too few for reliable patterns, so the charts and findings on this page use Mason County numbers.
When crashes happen
Truck crashes peak in October (13.3% of the year) and are lowest in May (3.7%).
Winter months (Nov–Mar) carry 45.2% of truck crashes, vs 43.8% for Washington.
More truck crashes happen at 11 am–12 pm than at any other hour (11.1%).
Snow, slush or ice was on the road in 8.7% of truck crashes, compared with 9.7% in Washington.
Where crashes happen
CR-NE Belfair Tahuya Rd leads within 10 miles of Allyn with 2 fatal crashes involving a large truck since 2015. After it: CR-118TH Ave Nw (1), CR-E North Island Dr (1) and CR-E Pickering Rd (1).
Garbage & waste trucks
Garbage and refuse trucks were involved in 2 crashes, 1.5% of the total, against 2.2% across Washington.
Route planning tips for Allyn fleets
- Build extra time into October routes: it has the most truck crashes here.
- Check whether your routes use CR-NE Belfair Tahuya Rd, the road with the most fatal truck crashes in this area.
- 29.4% of truck crashes happen between 6 and 10 am, above Washington; consider earlier or later starts where possible.
- 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 Mason County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| CR-NE Belfair Tahuya Rd | 2 |
| CR-118TH Ave Nw | 1 |
| CR-E North Island Dr | 1 |
| CR-E Pickering Rd | 1 |
| CR-KEY Peninsula Hwy Nw | 1 |
| SR-3 | 1 |
| SR-300 | 1 |
| SR-302 | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Mason County) |
|---|---|
| Sr-101*329.00 | 3 |
| Sr-101*341.43 | 3 |
| Johns Prairie Rd Blk 1300 | 2 |
| Sr-101*319.70 | 2 |
| Sr-101*327.00 | 2 |
| Sr-101*332.00 | 2 |
| Sr-101*335.00 | 2 |
| Sr-101*340.00 | 2 |
Allyn at a glance
| Land area | 1.6 sq mi |
| Median household income (ZIP 98524) | $99,483 |
| Median home value (ZIP 98524) | $526,060 |
Waste facilities and haulers nearby
Historical data: truck crashes in Mason 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 | 9 | — | 0.6 |
| 2000s | 9 | -2% | 1.0 |
| 2010s | 11 | +20% | 0.9 |
| 2020s | 12 | +16% | 1.6 |
In the 1990s about 9 truck crashes a year were reported; in the 2020s, about 12. Reporting coverage also changed between these periods. NHTSA counts 0.8 fatal large-truck crashes a year in 2016–19 and 1.6 a year in 2020–24.
Nearby places
Questions fleets ask about Allyn
How common are truck crashes in Allyn?
Since 2015, 135 crashes involving commercial trucks were reported in Mason County (34 injured, 11 killed).
Which road has the most fatal truck crashes in Allyn?
Since 2015, CR-NE Belfair Tahuya Rd has had the most fatal large-truck crashes within 10 miles of Allyn: 2.
When do most truck crashes happen in Allyn?
October has the most truck crashes in Mason County, 13.3% of the yearly total.
How many garbage truck crashes are there in Allyn?
Garbage trucks were involved in 2 reported crashes in Mason County since 2015 (1.5% of truck crashes).
What is the truck crash rate in Allyn compared with Washington?
The yearly rate is 16.5 truck crashes per 100,000 residents in Mason County, vs 25.8 for Washington.
How can I plan a safer truck route in Allyn?
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.