Arroyo Grande, CA truck route planning & crash data
Plan safer truck routes in Arroyo Grande: commercial truck and garbage truck crashes in Arroyo Grande and San Luis Obispo County, dangerous roads, seasonality and route safety data for fleets. Patterns use San Luis Obispo County numbers.
Where fatal truck crashes happened
Risk scorecard
Key findings
Snapshot
Crashes by month
Garbage trucks vs all trucks
15 of 920 truck crashes since 2015.
Deadliest roads
How San Luis Obispo County compares with California
San Luis Obispo County against California and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where San Luis Obispo County stands out
Full comparison
| Measure (2015–2025) | San Luis Obispo County | California | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 28.4 | 33.2 | 49.7 | 14% below the state |
| Deaths per 100 crashes | 3.3 | 3.6 | 3.4 | 8% below the state |
| Injuries per crash | 0.40 | 0.44 | 0.49 | 9% below the state |
| Garbage-truck share | 1.6% | 1.6% | 2.3% | same |
| On snow, slush or ice | 0.3% | 0.9% | 6.2% | 63% below the state |
| Morning rush (6–10 am) | 24.7% | 23.5% | 23.7% | same |
| In rain, sleet or snow | 5.0% | 6.5% | 13.8% | 23% below the state |
| Winter months (Nov–Mar) | 36.1% | 40.2% | 41.9% | 10% below the state |
| After dark | 24.9% | 29.1% | 24.8% | 15% below the state |
San Luis Obispo County has lower values than California for crashes per 100k residents / yr, deaths per 100 crashes and injuries per crash.
The headline for Arroyo Grande: US-101 most fatal truck crashes within 10 miles of Arroyo Grande: 3 since 2015.
Overview
Police reported 920 crashes involving commercial trucks in San Luis Obispo County since 2015: 371 people were injured and 30 were killed.
Across the years with complete reporting, that is roughly one truck crash every 5 days.
With 32 truck crashes reported in Arroyo Grande since 2015, this page uses San Luis Obispo County numbers for its patterns and comparisons.
When crashes happen
Truck crashes peak in September (10.4% of the year) and are lowest in January (5.1%).
The five winter months (November to March) hold 36.1% of truck crashes, against 40.2% across California.
More truck crashes happen at 7–8 am than at any other hour (7.4%).
Snow, slush or ice was on the road in 0.3% of truck crashes, compared with 0.9% in California.
Where crashes happen
The deadliest road for trucks within 10 miles of Arroyo Grande is US-101, with 3 fatal large-truck crashes since 2015. After it: South Higuera St (1) and Trouville Ave (1).
Garbage & waste trucks
Garbage trucks account for 15 of the truck crashes here, or 1.6%, compared with 1.6% in California.
Route planning tips for Arroyo Grande fleets
- Plan September schedules with more margin; it is the worst month for truck crashes in San Luis Obispo County.
- Where you can, review stops along US-101; it has the most fatal large-truck crashes nearby.
- Paste your stops into the free Route Planner to see the risk score, safer alternatives and low bridges.
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 Luis Obispo County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| US-101 | 3 |
| South Higuera St | 1 |
| Trouville Ave | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (San Luis Obispo County) |
|---|---|
| US-101 | 15 |
| SR-1 | 8 |
| SR-46E | 5 |
| Rt101/Wellsona Rd | 4 |
| SR-41 | 3 |
| Rt46/4220Ft W Lucy Brown Rd | 3 |
| Rt166/4M E Alamo Creek Rd | 3 |
| Creston Rd | 2 |
Arroyo Grande at a glance
| Population | 18,249 |
| Land area | 5.9 sq mi |
| Density | 3,073 per sq mi |
Waste facilities and haulers nearby
Historical data: truck crashes in San Luis Obispo 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 | — | — | 3.2 |
| 2000s | 56 | — | 2.6 |
| 2010s | 72 | +28% | 2.6 |
| 2020s | 80 | +12% | 2.2 |
In the 2000s about 56 truck crashes a year were reported; in the 2020s, about 80. Reporting coverage also changed between these periods. NHTSA counts 3.2 fatal large-truck crashes a year in 2016–19 and 2.2 a year in 2020–24.
Nearby places
Questions fleets ask about Arroyo Grande
How many truck accidents are there in Arroyo Grande?
Since 2015, 920 crashes involving commercial trucks were reported in San Luis Obispo County (371 injured, 30 killed).
Which road has the most fatal truck crashes in Arroyo Grande?
NHTSA data shows US-101 with 3 fatal large-truck crashes within 10 miles of Arroyo Grande since 2015, the highest of any road.
What is the worst month for truck crashes in Arroyo Grande?
The worst month is September: 10.4% of truck crashes in San Luis Obispo County happen then.
How many garbage truck accidents happen in Arroyo Grande?
Since 2015, San Luis Obispo County has reported 15 garbage-truck crashes, or 1.6% of its truck crashes.
How does Arroyo Grande compare with California for truck crashes?
San Luis Obispo County records 28.4 truck crashes per 100,000 residents a year, against 33.2 across California.
What is the best way to plan truck routes in Arroyo Grande?
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.