Alta Sierra, Nevada County, CA truck route planning & crash data
Plan safer truck routes in Alta Sierra, Nevada County: commercial truck and garbage truck crashes in Alta Sierra, Nevada County and Nevada County, dangerous roads, seasonality and route safety data for fleets. Patterns use Nevada County numbers.
Where fatal truck crashes happened
Risk scorecard
Key findings
Snapshot
Crashes by month
Garbage trucks vs all trucks
7 of 919 truck crashes since 2015.
Deadliest roads
How Nevada County compares with California
Nevada County against California and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Nevada County stands out
Full comparison
| Measure (2015–2025) | Nevada County | California | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 78.9 | 33.2 | 49.7 | 2.4× the state |
| Deaths per 100 crashes | 1.7 | 3.6 | 3.4 | 53% below the state |
| Injuries per crash | 0.51 | 0.44 | 0.49 | 1.2× the state |
| Garbage-truck share | 0.6% | 1.6% | 2.3% | 66% below the state |
| On snow, slush or ice | 24.3% | 0.9% | 6.2% | 26.2× the state |
| Morning rush (6–10 am) | 20.7% | 23.5% | 23.7% | 12% below the state |
| In rain, sleet or snow | 39.9% | 6.5% | 13.8% | 6.1× the state |
| Winter months (Nov–Mar) | 44.0% | 40.2% | 41.9% | 1.1× the state |
| After dark | 29.5% | 29.1% | 24.8% | same |
Nevada County sits below California on deaths per 100 crashes, garbage-truck share and morning rush (6–10 am). It stands out for higher crashes per 100k residents / yr, injuries per crash and on snow, slush or ice.
Nevada County at a glance: 24.3% on snowy, slushy or icy roads, against 0.9% across California.
Overview
Police reported 919 crashes involving commercial trucks in Nevada County since 2015: 462 people were injured and 15 were killed.
That averages about one truck crash every 5 days in fully reported years.
Alta Sierra, Nevada County had 0 reported truck crashes since 2015, too few for reliable patterns, so the charts and findings on this page use Nevada County numbers.
When crashes happen
The worst month is September with 10.8% of truck crashes; the quietest is April at 6.1%.
The five winter months (November to March) hold 44.0% of truck crashes, against 40.2% across California.
By time of day, 3–4 pm stands out with 7.7% of truck crashes.
Road surface: 24.3% of truck crashes were on snow, slush or ice (California: 0.9%).
Where crashes happen
Roads with fatal crashes involving a large truck within 10 miles of Alta Sierra since 2015: I-80 (2), SR-49 (2) and SR-20 (1). No single road stands out.
Garbage & waste trucks
7 crashes involved a garbage or refuse truck, a 0.8% share (California: 1.6%).
Route planning tips for Alta Sierra, Nevada County fleets
- Build extra time into September routes: it has the most truck crashes here.
- 24.3% of truck crashes were on snow, slush or ice, above California; plan winter equipment checks before the season.
- 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 Nevada County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| I-80 | 2 |
| SR-49 | 2 |
| SR-20 | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Nevada County) |
|---|---|
| I-80 | 27 |
| SR-20 | 8 |
| Rt80 Eb/150Ft W Donner Pass Rd | 5 |
| Interstate 80 W/B | 4 |
| Rt80/.1M W Donner Lake Rd | 4 |
| Rt80/1.7M E Boreal Uc | 4 |
| Rt80/1500Ft E Donner Pass Rd | 4 |
| Rt80/1.5M W Floriston Rd | 3 |
Alta Sierra, Nevada County at a glance
| Land area | 8.3 sq mi |
| Median household income (ZIP 95949) | $98,181 |
| Median home value (ZIP 95949) | $551,423 |
Waste facilities and haulers nearby
Historical data: truck crashes in Nevada 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 | — | — | 1.2 |
| 2000s | 48 | — | 1.3 |
| 2010s | 65 | +34% | 0.8 |
| 2020s | 82 | +26% | 0.8 |
From the 2000s to the 2020s, yearly reported truck crashes went from 48 to 82. Some of the change may reflect how crashes were reported. NHTSA counts 0.8 fatal large-truck crashes a year in 2016–19 and 0.8 a year in 2020–24.
Nearby places
Questions fleets ask about Alta Sierra, Nevada County
How many truck accidents are there in Alta Sierra, Nevada County?
Nevada County has had 919 reported truck crashes since 2015, injuring 462 people and killing 15.
What is the worst month for truck crashes in Alta Sierra, Nevada County?
September has the most truck crashes in Nevada County, 10.8% of the yearly total.
How many garbage truck accidents happen in Alta Sierra, Nevada County?
Garbage trucks were involved in 7 reported crashes in Nevada County since 2015 (0.8% of truck crashes).
How does Alta Sierra, Nevada County compare with California for truck crashes?
Nevada County records 78.9 truck crashes per 100,000 residents a year, against 33.2 across California.
What is the best way to plan truck routes in Alta Sierra, Nevada County?
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.