Mammoth, AZ truck route planning & crash data
Plan safer truck routes in Mammoth: commercial truck and garbage truck crashes in Mammoth and Pinal County, dangerous roads, seasonality and route safety data for fleets. Patterns use Pinal County numbers.
Where fatal truck crashes happened
Risk scorecard
Key findings
Snapshot
Crashes by month
Garbage trucks vs all trucks
3.8 deaths per 100 garbage-truck crashes vs 6.9 for all trucks.
Deadliest roads
How Pinal County compares with Arizona
Pinal County against Arizona and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Pinal County stands out
Full comparison
| Measure (2015–2025) | Pinal County | Arizona | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 34.0 | 35.9 | 49.7 | same |
| Deaths per 100 crashes | 6.9 | 5.2 | 3.4 | 1.3× the state |
| Injuries per crash | 0.25 | 0.19 | 0.49 | 1.3× the state |
| Garbage-truck share | 1.4% | 1.6% | 2.3% | 14% below the state |
| On snow, slush or ice | 0.2% | 3.2% | 6.2% | 95% below the state |
| Morning rush (6–10 am) | 20.7% | 22.6% | 23.7% | 8% below the state |
| In rain, sleet or snow | 3.6% | 5.3% | 13.8% | 31% below the state |
| Winter months (Nov–Mar) | 43.6% | 42.1% | 41.9% | same |
| After dark | 29.3% | 30.0% | 24.8% | same |
Compared with Arizona, Pinal County is lower on garbage-truck share, on snow, slush or ice and morning rush (6–10 am). Where it is higher: deaths per 100 crashes and injuries per crash.
The headline for Pinal County: 0.2% share of truck crashes on snow, slush or ice (Arizona: 3.2%).
Overview
Since 2015, 2,060 crashes involving commercial trucks have been reported in Pinal County. They injured 550 people and killed 136.
Across the years with complete reporting, that is roughly one truck crash every 2 days.
Only 0 truck crashes were reported in Mammoth since 2015; patterns below come from Pinal County as a whole.
When crashes happen
January has the most truck crashes, 10.0% of the yearly total, while November has the fewest (7.0%).
Winter months (Nov–Mar) carry 43.6% of truck crashes, vs 42.1% for Arizona.
By time of day, 11 am–12 pm stands out with 6.8% of truck crashes.
0.2% of truck crashes here happened on snow, slush or ice, against 3.2% across Arizona.
Where crashes happen
Since 2015, fatal crashes with a large truck within 10 miles of Mammoth happened on SR-77 (2); no road leads clearly.
Garbage & waste trucks
Garbage and refuse trucks were involved in 28 crashes, 1.4% of the total, against 1.6% across Arizona.
Their busiest month is March, with 14% of garbage-truck crashes.
Per 100 crashes, garbage trucks recorded 3.8 deaths compared with 6.9 for all trucks.
Route planning tips for Mammoth fleets
- Plan January schedules with more margin; it is the worst month for truck crashes in Pinal County.
- For residential and commercial waste routes, look again at March schedules: garbage-truck crashes peak then.
- 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 Pinal County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| SR-77 | 2 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Pinal County) |
|---|---|
| I-10 Noncard@M182 | 14 |
| I-10 Noncard@M177 | 14 |
| I-10 Noncard@M181 | 12 |
| I-10 Noncard@M179 | 12 |
| I-8 Exit 178 A-Ramp@M178A | 11 |
| I-10 Noncard@M203 | 9 |
| I-10 Noncard@M194 | 9 |
| I-10 Noncard@M185 | 9 |
Mammoth at a glance
| Population | 1,181 |
| Land area | 26.3 sq mi |
| Density | 45 per sq mi |
| Median household income (ZIP 85623) | $68,541 |
| Median home value (ZIP 85623) | $429,619 |
Waste facilities and haulers nearby
Historical data: truck crashes in Pinal 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 | 29 | — | 5.6 |
| 2000s | 102 | +250% | 9.5 |
| 2010s | 80 | -21% | 6.7 |
| 2020s | 187 | +132% | 9.2 |
Reported truck crashes averaged 29 a year in the 1990s and 187 a year in the 2020s. Reporting practices changed over time, so part of any change can come from reporting. Fatal large-truck crashes: 8.0 a year in 2016–19, 9.2 a year in 2020–24.
Nearby places
Questions fleets ask about Mammoth
How common are truck crashes in Mammoth?
Pinal County has had 2,060 reported truck crashes since 2015, injuring 550 people and killing 136.
What is the worst month for truck crashes in Mammoth?
Truck crashes in Pinal County peak in January, with 10.0% of the year's crashes.
How many garbage truck crashes are there in Mammoth?
Garbage trucks were involved in 28 reported crashes in Pinal County since 2015 (1.4% of truck crashes).
How does Mammoth compare with Arizona for truck crashes?
The yearly rate is 34.0 truck crashes per 100,000 residents in Pinal County, vs 35.9 for Arizona.
What is the best way to plan truck routes in Mammoth?
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.