Snowflake, AZ truck route planning & crash data
Plan safer truck routes in Snowflake: commercial truck and garbage truck crashes in Snowflake and Navajo County, dangerous roads, seasonality and route safety data for fleets. Patterns use Navajo County numbers.
Where fatal truck crashes happened
Risk scorecard
Key findings
Snapshot
Crashes by month
Garbage trucks vs all trucks
4 of 971 truck crashes since 2015.
Deadliest roads
No fatal large-truck crashes with a road name recorded here since 2015.
How Navajo County compares with Arizona
Navajo County against Arizona and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Navajo County stands out
Full comparison
| Measure (2015–2025) | Navajo County | Arizona | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 73.6 | 35.9 | 49.7 | 2.1× the state |
| Deaths per 100 crashes | 9.4 | 5.2 | 3.4 | 1.8× the state |
| Injuries per crash | 0.22 | 0.19 | 0.49 | 1.2× the state |
| Garbage-truck share | 0.4% | 1.6% | 2.3% | 71% below the state |
| On snow, slush or ice | 6.3% | 3.2% | 6.2% | 2.0× the state |
| Morning rush (6–10 am) | 16.1% | 22.6% | 23.7% | 29% below the state |
| In rain, sleet or snow | 5.1% | 5.3% | 13.8% | same |
| Winter months (Nov–Mar) | 40.6% | 42.1% | 41.9% | same |
| After dark | 41.3% | 30.0% | 24.8% | 1.4× the state |
Compared with Arizona, Navajo County is lower on garbage-truck share and morning rush (6–10 am). It runs above Arizona on crashes per 100k residents / yr, deaths per 100 crashes and injuries per crash.
Navajo County at a glance: 6.3% share of truck crashes on snow, slush or ice (Arizona: 3.2%).
Overview
Navajo County has recorded 971 truck crashes since 2015, with 248 people injured and 87 killed.
That averages about one truck crash every 5 days in fully reported years.
With 13 truck crashes reported in Snowflake since 2015, this page uses Navajo County numbers for its patterns and comparisons.
When crashes happen
July has the most truck crashes, 10.3% of the yearly total, while April has the fewest (6.6%).
The five winter months (November to March) hold 40.6% of truck crashes, against 42.1% across Arizona.
The busiest hour is 2–3 pm, with 6.1% of truck crashes.
6.3% of truck crashes here happened on snow, slush or ice, against 3.2% across Arizona.
Where crashes happen
Since 2015, no fatal large-truck crashes with a location were recorded within 10 miles of Snowflake.
Garbage & waste trucks
Garbage trucks account for 4 of the truck crashes here, or 0.4%, compared with 1.6% in Arizona.
Route planning tips for Snowflake fleets
- Review driver schedules for July, the month with the most truck crashes.
- With 6.3% of truck crashes on snow, slush or ice (above Arizona), plan winter equipment checks early.
- Use the free Route Planner to score your route and spot low bridges before drivers head out.
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 Navajo County
By hour of day
Most dangerous roads for trucks
No fatal crashes involving a large truck with a road name were recorded within 10 miles since 2015.
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Navajo County) |
|---|---|
| I-40 Noncard@M257 | 11 |
| I-40 Noncard@M284 | 10 |
| I-40 Noncard@M255 | 9 |
| I-40 Noncard@M271 | 8 |
| I-40 Noncard@M288 | 7 |
| I-40 Noncard@M258 | 6 |
| I-40 Noncard@M279 | 6 |
| I-40 Noncard@M282 | 6 |
Snowflake at a glance
| Population | 6,736 |
| Land area | 33.7 sq mi |
| Density | 200 per sq mi |
| Median household income (ZIP 85937) | $69,702 |
| Median home value (ZIP 85937) | $269,309 |
Waste facilities and haulers nearby
Historical data: truck crashes in Navajo 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 | 12 | — | 2.7 |
| 2000s | 42 | +265% | 3.5 |
| 2010s | 36 | -14% | 2.3 |
| 2020s | 88 | +143% | 6.2 |
Reported truck crashes averaged 12 a year in the 1990s and 88 a year in the 2020s. Reporting practices changed over time, so part of any change can come from reporting. Fatal large-truck crashes: 2.8 a year in 2016–19, 6.2 a year in 2020–24.
Nearby places
Questions fleets ask about Snowflake
How many truck accidents are there in Snowflake?
Since 2015, 971 crashes involving commercial trucks were reported in Navajo County (248 injured, 87 killed).
What is the worst month for truck crashes in Snowflake?
The worst month is July: 10.3% of truck crashes in Navajo County happen then.
How many garbage truck crashes are there in Snowflake?
4 crashes involving garbage or refuse trucks have been reported in Navajo County since 2015, 0.4% of all truck crashes.
What is the truck crash rate in Snowflake compared with Arizona?
The yearly rate is 73.6 truck crashes per 100,000 residents in Navajo County, vs 35.9 for Arizona.
How can I plan a safer truck route in Snowflake?
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.