Summit, AZ truck route planning & crash data
Plan safer truck routes in Summit: commercial truck and garbage truck crashes in Summit and Pima County, dangerous roads, seasonality and route safety data for fleets. Patterns use Pima County numbers.
Where fatal truck crashes happened
Risk scorecard
Key findings
Snapshot
Crashes by month
Garbage trucks vs all trucks
9.8 deaths per 100 garbage-truck crashes vs 6.7 for all trucks.
Deadliest roads
How Pima County compares with Arizona
Pima County against Arizona and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Pima County stands out
Full comparison
| Measure (2015–2025) | Pima County | Arizona | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 18.5 | 35.9 | 49.7 | 48% below the state |
| Deaths per 100 crashes | 6.7 | 5.2 | 3.4 | 1.3× the state |
| Injuries per crash | 0.17 | 0.19 | 0.49 | 11% below the state |
| Garbage-truck share | 1.9% | 1.6% | 2.3% | 1.2× the state |
| On snow, slush or ice | 0.4% | 3.2% | 6.2% | 87% below the state |
| Morning rush (6–10 am) | 25.1% | 22.6% | 23.7% | 1.1× the state |
| In rain, sleet or snow | 4.9% | 5.3% | 13.8% | 8% below the state |
| Winter months (Nov–Mar) | 44.3% | 42.1% | 41.9% | same |
| After dark | 25.3% | 30.0% | 24.8% | 16% below the state |
Compared with Arizona, Pima County is lower on crashes per 100k residents / yr, injuries per crash and on snow, slush or ice. Where it is higher: deaths per 100 crashes, garbage-truck share and morning rush (6–10 am).
What stands out in Summit: 2.6× fatal truck crashes within 10 miles of Summit per year, 2020–24 vs 2016–19 (5.2 vs 2.0).
Overview
Police reported 2,337 crashes involving commercial trucks in Pima County since 2015: 429 people were injured and 151 were killed.
That averages about one truck crash every 2 days in fully reported years.
Summit had 0 reported truck crashes since 2015, too few for reliable patterns, so the charts and findings on this page use Pima County numbers.
When crashes happen
The worst month is February with 9.5% of truck crashes; the quietest is April at 7.4%.
Winter months (Nov–Mar) carry 44.3% of truck crashes, vs 42.1% for Arizona.
By time of day, 8–9 am stands out with 7.3% of truck crashes.
Snow, slush or ice was on the road in 0.4% of truck crashes, compared with 3.2% in Arizona.
Where crashes happen
The deadliest road for trucks within 10 miles of Summit is I-10, with 14 fatal large-truck crashes since 2015. After it: I-19 (4), Valencia Rd (4) and SR-19 (2).
Garbage & waste trucks
Garbage and refuse trucks were involved in 46 crashes, 2.0% of the total, against 1.6% across Arizona.
Garbage-truck crashes peak in April (17% of them).
Deaths per 100 garbage-truck crashes: 9.8, vs 6.7 for all truck crashes.
Route planning tips for Summit fleets
- Plan February schedules with more margin; it is the worst month for truck crashes in Pima County.
- Check whether your routes use I-10, the road with the most fatal truck crashes in this area.
- Garbage-truck crashes here peak in April; review collection routes for that month.
- The morning rush (6–10 am) holds 25.1% of truck crashes here, more than Arizona; adjust start times where you can.
- Check your own stops for crash hotspots and low bridges with the free Route Planner.
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 Pima County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| I-10 | 14 |
| I-19 | 4 |
| Valencia Rd | 4 |
| SR-19 | 2 |
| 36th St | 1 |
| Ajo Way | 1 |
| Benson Hwy | 1 |
| E Valencia Rd | 1 |
| Old Vail Rd | 1 |
| S Alvernon Way | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Pima County) |
|---|---|
| I-10 Noncard@M264 | 36 |
| I-10 Noncard@M262 | 24 |
| I-10 Noncard@M255 | 22 |
| I-10 Noncard@M253 | 19 |
| I-10 Noncard@M252 | 18 |
| I-10 Noncard@M257 | 15 |
| I-10 Noncard@M268 | 14 |
| I-10 Noncard@M267 | 12 |
Summit at a glance
| Land area | 3.7 sq mi |
| Median household income (ZIP 85756) | $72,490 |
| Median home value (ZIP 85756) | $217,120 |
Waste facilities and haulers nearby
Historical data: truck crashes in Pima 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 | — | 6.5 |
| 2000s | 173 | +494% | 7.4 |
| 2010s | 101 | -42% | 7.3 |
| 2020s | 199 | +97% | 12.4 |
Reported truck crashes averaged 29 a year in the 1990s and 199 a year in the 2020s. Reporting practices changed over time, so part of any change can come from reporting. Fatal crashes involving a large truck averaged 7.2 a year in 2016–19 and 12.4 a year in 2020–24.
Nearby places
Questions fleets ask about Summit
How many truck accidents are there in Summit?
Pima County has had 2,337 reported truck crashes since 2015, injuring 429 people and killing 151.
Where do fatal truck crashes happen most in Summit?
NHTSA data shows I-10 with 14 fatal large-truck crashes within 10 miles of Summit since 2015, the highest of any road.
What is the worst month for truck crashes in Summit?
Truck crashes in Pima County peak in February, with 9.5% of the year's crashes.
How many garbage truck accidents happen in Summit?
Since 2015, Pima County has reported 46 garbage-truck crashes, or 2.0% of its truck crashes.
How do truck crashes in Summit compare with Arizona?
The yearly rate is 18.5 truck crashes per 100,000 residents in Pima County, vs 35.9 for Arizona.
How can I plan a safer truck route in Summit?
Paste your stops into the free CurbWaste Route Planner: it scores your route against fatal-crash locations, suggests safer alternatives and flags low bridges.
2026 is a partial year. Updated October 2026.