Rio Oso, CA truck route planning & crash data
Plan safer truck routes in Rio Oso: commercial truck and garbage truck crashes in Rio Oso and Sutter County, dangerous roads, seasonality and route safety data for fleets. Patterns use Sutter County numbers.
Where fatal truck crashes happened
Risk scorecard
Key findings
Snapshot
Crashes by month
Garbage trucks vs all trucks
7 of 568 truck crashes since 2015.
Deadliest roads
How Sutter County compares with California
Sutter County against California and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Sutter County stands out
Full comparison
| Measure (2015–2025) | Sutter County | California | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 50.2 | 33.2 | 49.7 | 1.5× the state |
| Deaths per 100 crashes | 7.9 | 3.6 | 3.4 | 2.2× the state |
| Injuries per crash | 0.58 | 0.44 | 0.49 | 1.3× the state |
| Garbage-truck share | 1.3% | 1.6% | 2.3% | 21% below the state |
| On snow, slush or ice | 0.2% | 0.9% | 6.2% | 81% below the state |
| Morning rush (6–10 am) | 27.6% | 23.5% | 23.7% | 1.2× the state |
| In rain, sleet or snow | 5.7% | 6.5% | 13.8% | 12% below the state |
| Winter months (Nov–Mar) | 33.5% | 40.2% | 41.9% | 17% below the state |
| After dark | 23.0% | 29.1% | 24.8% | 21% below the state |
Sutter County sits below California on garbage-truck share, on snow, slush or ice and in rain, sleet or snow. It stands out for higher crashes per 100k residents / yr, deaths per 100 crashes and injuries per crash.
The headline for Sutter County: 7.9 people killed per 100 truck crashes (California: 3.6).
Overview
Police reported 568 crashes involving commercial trucks in Sutter County since 2015: 339 people were injured and 43 were killed.
That averages about one truck crash every 7 days in fully reported years.
Rio Oso had 0 reported truck crashes since 2015, too few for reliable patterns, so the charts and findings on this page use Sutter County numbers.
When crashes happen
The worst month is October with 13.7% of truck crashes; the quietest is February at 4.8%.
November through March accounts for 33.5% of truck crashes here, compared with 40.2% in California.
The busiest hour is 8–9 am, with 7.9% of truck crashes.
Road surface: 0.2% of truck crashes were on snow, slush or ice (California: 0.9%).
Where crashes happen
SR-99 leads within 10 miles of Rio Oso with 9 fatal crashes involving a large truck since 2015. After it: Forty Mile Road (1), I-80 (1) and SR-113 (1).
Garbage & waste trucks
Garbage trucks account for 7 of the truck crashes here, or 1.2%, compared with 1.6% in California.
Route planning tips for Rio Oso fleets
- Review driver schedules for October, the month with the most truck crashes.
- Check whether your routes use SR-99, the road with the most fatal truck crashes in this area.
- 27.6% of truck crashes happen between 6 and 10 am, above California; consider earlier or later starts where possible.
- Use the free Route Planner to score your route and spot low bridges before drivers head out.
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 Sutter County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| SR-99 | 9 |
| Forty Mile Road | 1 |
| I-80 | 1 |
| SR-113 | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Sutter County) |
|---|---|
| SR-99 | 12 |
| Sr-70 S/B | 3 |
| Rt99/Oswald Rd | 3 |
| Rt99/ Sankey Rd | 3 |
| Rt70/Striplin Rd | 3 |
| Rt20/Harter Pkwy | 3 |
| Riego Road | 3 |
| Bridge St/Shasta St | 2 |
Rio Oso at a glance
| Land area | 6.5 sq mi |
| Median household income (ZIP 95674) | $104,750 |
| Median home value (ZIP 95674) | $549,370 |
Waste facilities and haulers nearby
Historical data: truck crashes in Sutter 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 | — | — | 2.0 |
| 2000s | 27 | — | 2.3 |
| 2010s | 38 | +42% | 2.5 |
| 2020s | 50 | +32% | 3.0 |
In the 2000s about 27 truck crashes a year were reported; in the 2020s, about 50. Reporting coverage also changed between these periods. Fatal large-truck crashes: 3.8 a year in 2016–19, 3.0 a year in 2020–24.
Nearby places
Questions fleets ask about Rio Oso
How many truck accidents are there in Rio Oso?
568 truck crashes have been reported in Sutter County since 2015, with 43 deaths and 339 injuries.
Which road has the most fatal truck crashes in Rio Oso?
Since 2015, SR-99 has had the most fatal large-truck crashes within 10 miles of Rio Oso: 9.
What is the worst month for truck crashes in Rio Oso?
October has the most truck crashes in Sutter County, 13.7% of the yearly total.
Are garbage truck crashes common in Rio Oso?
7 crashes involving garbage or refuse trucks have been reported in Sutter County since 2015, 1.2% of all truck crashes.
What is the truck crash rate in Rio Oso compared with California?
The yearly rate is 50.2 truck crashes per 100,000 residents in Sutter County, vs 33.2 for California.
What is the best way to plan truck routes in Rio Oso?
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.