Mad River, CA truck route planning & crash data
Plan safer truck routes in Mad River: commercial truck and garbage truck crashes in Mad River and Trinity County, dangerous roads, seasonality and route safety data for fleets. Patterns use Trinity County numbers.
Where fatal truck crashes happened
Risk scorecard
Key findings
Snapshot
Crashes by month
Garbage trucks vs all trucks
2 of 173 truck crashes since 2015.
Deadliest roads
How Trinity County compares with California
Trinity County against California and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Trinity County stands out
Full comparison
| Measure (2015–2025) | Trinity County | California | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 98.8 | 33.2 | 49.7 | 3.0× the state |
| Deaths per 100 crashes | 1.8 | 3.6 | 3.4 | 50% below the state |
| Injuries per crash | 0.34 | 0.44 | 0.49 | 23% below the state |
| Garbage-truck share | 1.2% | 1.6% | 2.3% | 28% below the state |
| On snow, slush or ice | 5.3% | 0.9% | 6.2% | 5.7× the state |
| Morning rush (6–10 am) | 30.0% | 23.5% | 23.7% | 1.3× the state |
| In rain, sleet or snow | 8.8% | 6.5% | 13.8% | 1.4× the state |
| Winter months (Nov–Mar) | 34.1% | 40.2% | 41.9% | 15% below the state |
| After dark | 15.9% | 29.1% | 24.8% | 45% below the state |
Compared with California, Trinity County is lower on deaths per 100 crashes, injuries per crash and garbage-truck share. It stands out for higher crashes per 100k residents / yr, on snow, slush or ice and morning rush (6–10 am).
What stands out in Trinity County: 5.3% on snowy, slushy or icy roads, against 0.9% across California.
Overview
Trinity County has recorded 173 truck crashes since 2015, with 61 people injured and 3 killed.
That averages about one truck crash every 24 days in fully reported years.
With 0 truck crashes reported in Mad River since 2015, this page uses Trinity County numbers for its patterns and comparisons.
When crashes happen
Truck crashes peak in June (16.8% of the year) and are lowest in February (4.6%).
November through March accounts for 34.1% of truck crashes here, compared with 40.2% in California.
The busiest hour is 9–10 am, with 11.6% of truck crashes.
5.3% of truck crashes here happened on snow, slush or ice, against 0.9% across California.
Where crashes happen
Since 2015, fatal crashes with a large truck within 10 miles of Mad River happened on SR-36 (1); no road leads clearly.
Garbage & waste trucks
2 crashes involved a garbage or refuse truck, a 1.2% share (California: 1.6%).
Route planning tips for Mad River fleets
- Review driver schedules for June, the month with the most truck crashes.
- Morning starts matter: 30.0% of truck crashes fall between 6 and 10 am, higher than California.
- Icy and snowy roads show up in 5.3% of truck crashes here, more than California; schedule winter checks early.
- Paste your stops into the free Route Planner to see the risk score, safer alternatives and low bridges.
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 Trinity County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| SR-36 | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Trinity County) |
|---|---|
| SR-299 | 4 |
| Rt 299 / 0.2 Miles West Of Wilson Mountain Road | 2 |
| Rt299/.3M E Grass Valley Creek | 2 |
| Rt299/1.3M E Trinity Dam Bl | 2 |
| Rt36/6.4M E Rt3 | 2 |
| Sr3/110Ft N Mpm3-Tri-15.71 | 2 |
| Brady Rd/88Ft W Rt3 | 1 |
| Ca299/400Ft W Prairie Creek Rd | 1 |
Mad River at a glance
| Land area | 35.2 sq mi |
| Median household income (ZIP 95552) | $77,796 |
Waste facilities and haulers nearby
Historical data: truck crashes in Trinity 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 | — | — | 0.5 |
| 2000s | 12 | — | 0.6 |
| 2010s | 12 | +3% | 0.2 |
| 2020s | 15 | +21% | 0.6 |
In the 2000s about 12 truck crashes a year were reported; in the 2020s, about 15. Reporting coverage also changed between these periods. Fatal large-truck crashes: 0.0 a year in 2016–19, 0.6 a year in 2020–24.
Nearby places
Questions fleets ask about Mad River
How many truck crashes happen in Mad River?
Trinity County has had 173 reported truck crashes since 2015, injuring 61 people and killing 3.
Which month has the most truck crashes in Mad River?
Truck crashes in Trinity County peak in June, with 16.8% of the year's crashes.
How many garbage truck accidents happen in Mad River?
Since 2015, Trinity County has reported 2 garbage-truck crashes, or 1.2% of its truck crashes.
How do truck crashes in Mad River compare with California?
The yearly rate is 98.8 truck crashes per 100,000 residents in Trinity County, vs 33.2 for California.
How can I plan a safer truck route in Mad River?
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.