ZIP 92278 (Twentynine Palms, CA) truck route planning & crash data
Plan safer truck routes around ZIP 92278: commercial truck and garbage truck crashes here and in San Bernardino County, dangerous roads, seasonality and route safety data for fleets.
Where fatal truck crashes happened
Risk scorecard
Key findings
Snapshot
Crashes by month
Garbage trucks vs all trucks
2.8 deaths per 100 garbage-truck crashes vs 3.7 for all trucks.
Deadliest roads
How San Bernardino County compares with California
San Bernardino County against California and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where San Bernardino County stands out
Full comparison
| Measure (2015–2025) | San Bernardino County | California | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 66.4 | 33.2 | 49.7 | 2.0× the state |
| Deaths per 100 crashes | 3.7 | 3.6 | 3.4 | same |
| Injuries per crash | 0.42 | 0.44 | 0.49 | same |
| Garbage-truck share | 0.9% | 1.6% | 2.3% | 47% below the state |
| On snow, slush or ice | 0.6% | 0.9% | 6.2% | 39% below the state |
| Morning rush (6–10 am) | 19.9% | 23.5% | 23.7% | 15% below the state |
| In rain, sleet or snow | 5.4% | 6.5% | 13.8% | 17% below the state |
| Winter months (Nov–Mar) | 41.2% | 40.2% | 41.9% | same |
| After dark | 36.8% | 29.1% | 24.8% | 1.3× the state |
San Bernardino County sits below California on garbage-truck share, on snow, slush or ice and morning rush (6–10 am). It stands out for higher crashes per 100k residents / yr and after dark.
What stands out in San Bernardino County: 1 in 115 garbage-truck share of crashes is 0.9%, against 1.6% for California.
Overview
Since 2015, 16,987 crashes involving commercial trucks have been reported in San Bernardino County. They injured 7,216 people and killed 617.
In complete reporting years that works out to about 4 truck crashes a day.
When crashes happen
August has the most truck crashes, 9.1% of the yearly total, while November has the fewest (7.8%).
November through March accounts for 41.2% of truck crashes here, compared with 40.2% in California.
The busiest hour is 2–3 pm, with 5.4% of truck crashes.
0.6% of truck crashes here happened on snow, slush or ice, against 0.9% across California.
Where crashes happen
Roads with fatal crashes involving a large truck within 10 miles of ZIP 92278 since 2015: Adobe Rd (1), CR-LEAR Avenue (1) and SR-62 (1). No single road stands out.
Garbage & waste trucks
145 crashes involved a garbage or refuse truck, a 0.9% share (California: 1.6%).
Garbage-truck crashes peak in April (12% of them).
Deaths per 100 garbage-truck crashes: 2.8, vs 3.7 for all truck crashes.
Route planning tips for ZIP 92278 fleets
- Plan August schedules with more margin; it is the worst month for truck crashes in San Bernardino County.
- Waste haulers: April is the peak month for garbage-truck crashes in San Bernardino County.
- Check your own stops for crash hotspots and low bridges with the free Route Planner.
About the data
This report uses the FMCSA crash file (reported crashes of trucks over 10,000 lb) and NHTSA FARS (fatal crashes). It reports the numbers without guessing at reasons.
Truck crashes by year: all trucks vs garbage trucks
Seasonality: when trucks crash in San Bernardino County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| Adobe Rd | 1 |
| CR-LEAR Avenue | 1 |
| SR-62 | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (San Bernardino County) |
|---|---|
| I-15 | 67 |
| I-40 | 35 |
| I-10 W/B (San Bernardino Fwy) | 29 |
| I-10 E/B (San Bernardino Fwy) | 27 |
| Sr-60 E/B (Pomona Fwy) | 19 |
| I-10 | 16 |
| US-395 | 14 |
| I-15 N/B (Ontario Fwy) | 14 |
ZIP 92278 at a glance
| Population | 3,913 |
| Density | 3,849 per sq mi |
Waste facilities and haulers nearby
Historical data: truck crashes in San Bernardino 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 | 6 | — | 32.0 |
| 2000s | 850 | +14065% | 34.8 |
| 2010s | 1,161 | +37% | 30.6 |
| 2020s | 1,571 | +35% | 43.4 |
Reported truck crashes averaged 6 a year in the 1990s and 1,571 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 35.8 a year in 2016–19 and 43.4 a year in 2020–24.
Nearby ZIP codes
Questions fleets ask about ZIP 92278
How common are truck crashes in ZIP 92278?
San Bernardino County has had 16,987 reported truck crashes since 2015, injuring 7,216 people and killing 617.
What is the worst month for truck crashes in ZIP 92278?
Truck crashes in San Bernardino County peak in August, with 9.1% of the year's crashes.
Are garbage truck crashes common in ZIP 92278?
145 crashes involving garbage or refuse trucks have been reported in San Bernardino County since 2015, 0.9% of all truck crashes.
What is the truck crash rate in ZIP 92278 compared with California?
San Bernardino County records 66.4 truck crashes per 100,000 residents a year, against 33.2 across California.
What is the best way to plan truck routes in ZIP 92278?
Use the free Route Planner: enter your stops to get a risk score, safer alternatives and the low bridges on your route.
2026 is a partial year. Updated October 2026.