Yosemite Valley, CA truck route planning & crash data
Plan safer truck routes in Yosemite Valley: commercial truck and garbage truck crashes in Yosemite Valley and Mariposa County, dangerous roads, seasonality and route safety data for fleets. Patterns use Mariposa County numbers.
Where fatal truck crashes happened
Risk scorecard
Key findings
Snapshot
Crashes by month
Garbage trucks vs all trucks
3 of 55 truck crashes since 2015.
Deadliest roads
No fatal large-truck crashes with a road name recorded here since 2015.
How Mariposa County compares with California
Mariposa County against California and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Mariposa County stands out
Full comparison
| Measure (2015–2025) | Mariposa County | California | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 26.7 | 33.2 | 49.7 | 20% below the state |
| Deaths per 100 crashes | 6.0 | 3.6 | 3.4 | 1.7× the state |
| Injuries per crash | 0.50 | 0.44 | 0.49 | 1.1× the state |
| Garbage-truck share | 6.0% | 1.6% | 2.3% | 3.7× the state |
| On snow, slush or ice | 6.0% | 0.9% | 6.2% | 6.5× the state |
| Morning rush (6–10 am) | 38.0% | 23.5% | 23.7% | 1.6× the state |
| In rain, sleet or snow | 6.0% | 6.5% | 13.8% | 8% below the state |
| Winter months (Nov–Mar) | 36.0% | 40.2% | 41.9% | 11% below the state |
| After dark | 16.0% | 29.1% | 24.8% | 45% below the state |
Compared with California, Mariposa County is lower on crashes per 100k residents / yr, in rain, sleet or snow and winter months (nov–mar). Where it is higher: deaths per 100 crashes, injuries per crash and garbage-truck share.
The headline for Mariposa County: 6.0% of truck crashes happened on snow, slush or ice, vs 0.9% in California.
Overview
Police reported 55 crashes involving commercial trucks in Mariposa County since 2015: 29 people were injured and 3 were killed.
In complete reporting years that works out to about one truck crash every 80 days.
Yosemite Valley had 0 reported truck crashes since 2015, too few for reliable patterns, so the charts and findings on this page use Mariposa County numbers.
When crashes happen
July has the most truck crashes, 14.5% of the yearly total, while February has the fewest (0.0%).
Winter months (Nov–Mar) carry 36.0% of truck crashes, vs 40.2% for California.
The busiest hour is 9–10 am, with 18.2% of truck crashes.
Snow, slush or ice was on the road in 6.0% of truck crashes, compared with 0.9% in California.
Where crashes happen
No fatal crash involving a large truck has a recorded location within 10 miles of Yosemite Valley since 2015.
Garbage & waste trucks
Garbage and refuse trucks were involved in 3 crashes, 5.5% of the total, against 1.6% across California.
Route planning tips for Yosemite Valley fleets
- Build extra time into July routes: it has the most truck crashes here.
- 38.0% of truck crashes happen between 6 and 10 am, above California; consider earlier or later starts where possible.
- With 6.0% of truck crashes on snow, slush or ice (above California), 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
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 Mariposa 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 (Mariposa County) |
|---|---|
| SR-140 | 3 |
| Rt49/255Ft S Of Stumpfield Mountain Rd | 2 |
| SR-49 | 2 |
| Bear Valley Rd/78Ft W Hunters Valley Rd | 1 |
| Greeley Hill Rd | 1 |
| Highway 140/450Ft W Martin Rd | 1 |
| Horseshoe Bend Rd/600Ft N Sr132 | 1 |
| Jerseydale Rd/.7M S Wild Dove Ln | 1 |
Yosemite Valley at a glance
| Land area | 2.1 sq mi |
| Median household income (ZIP 95389) | $51,500 |
| Median home value (ZIP 95389) | $1,322,295 |
Waste facilities and haulers nearby
Historical data: truck crashes in Mariposa 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 | — | — | 0.2 |
| 2000s | 5 | — | 0.1 |
| 2010s | 3 | -34% | 0.5 |
| 2020s | 5 | +52% | 0.2 |
Reported truck crashes averaged 5 a year in the 2000s and 5 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 0.8 a year in 2016–19 and 0.2 a year in 2020–24.
Nearby places
Questions fleets ask about Yosemite Valley
How many truck crashes happen in Yosemite Valley?
Since 2015, 55 crashes involving commercial trucks were reported in Mariposa County (29 injured, 3 killed).
When do most truck crashes happen in Yosemite Valley?
July has the most truck crashes in Mariposa County, 14.5% of the yearly total.
How many garbage truck crashes are there in Yosemite Valley?
Since 2015, Mariposa County has reported 3 garbage-truck crashes, or 5.5% of its truck crashes.
How do truck crashes in Yosemite Valley compare with California?
Mariposa County records 26.7 truck crashes per 100,000 residents a year, against 33.2 across California.
How do I plan a garbage truck route in Yosemite Valley?
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.