Acalanes Ridge, CA truck route planning & crash data
Plan safer truck routes in Acalanes Ridge: commercial truck and garbage truck crashes in Acalanes Ridge and Contra Costa County, dangerous roads, seasonality and route safety data for fleets. Patterns use Contra Costa County numbers.
Where fatal truck crashes happened
Risk scorecard
Key findings
Snapshot
Crashes by month
Garbage trucks vs all trucks
3.3 deaths per 100 garbage-truck crashes vs 3.1 for all trucks.
Deadliest roads
How Contra Costa County compares with California
Contra Costa County against California and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Contra Costa County stands out
Full comparison
| Measure (2015–2025) | Contra Costa County | California | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 17.7 | 33.2 | 49.7 | 47% below the state |
| Deaths per 100 crashes | 3.1 | 3.6 | 3.4 | 14% below the state |
| Injuries per crash | 0.48 | 0.44 | 0.49 | 1.1× the state |
| Garbage-truck share | 2.6% | 1.6% | 2.3% | 1.6× the state |
| On snow, slush or ice | 0.1% | 0.9% | 6.2% | 86% below the state |
| Morning rush (6–10 am) | 26.3% | 23.5% | 23.7% | 1.1× the state |
| In rain, sleet or snow | 7.3% | 6.5% | 13.8% | 1.1× the state |
| Winter months (Nov–Mar) | 40.8% | 40.2% | 41.9% | same |
| After dark | 27.3% | 29.1% | 24.8% | same |
Contra Costa County sits below California on crashes per 100k residents / yr, deaths per 100 crashes and on snow, slush or ice. It runs above California on injuries per crash, garbage-truck share and morning rush (6–10 am).
The headline for Contra Costa County: 1 in 38 of truck crashes here involve garbage trucks: 2.6%, vs 1.6% in California.
Overview
Since 2015, 2,377 crashes involving commercial trucks have been reported in Contra Costa County. They injured 1,171 people and killed 73.
In complete reporting years that works out to about one truck crash every 2 days.
Acalanes Ridge had 0 reported truck crashes since 2015, too few for reliable patterns, so the charts and findings on this page use Contra Costa County numbers.
When crashes happen
Truck crashes peak in August (10.1% of the year) and are lowest in November (7.3%).
November through March accounts for 40.8% of truck crashes here, compared with 40.2% in California.
By time of day, 8–9 am stands out with 7.8% of truck crashes.
Snow, slush or ice was on the road in 0.1% of truck crashes, compared with 0.9% in California.
Where crashes happen
I-680 leads within 10 miles of Acalanes Ridge with 8 fatal crashes involving a large truck since 2015. It is followed by SR-4 (2), Clayton Rd (1) and Merriewood Dr (1).
Garbage & waste trucks
Garbage trucks account for 60 of the truck crashes here, or 2.5%, compared with 1.6% in California.
Garbage-truck crashes peak in February (15% of them).
Per 100 crashes, garbage trucks recorded 3.3 deaths compared with 3.1 for all trucks.
Route planning tips for Acalanes Ridge fleets
- Review driver schedules for August, the month with the most truck crashes.
- Look at alternatives to I-680 at busy times: it leads this area in fatal truck crashes.
- Waste haulers: February is the peak month for garbage-truck crashes in Contra Costa County.
- 26.3% of truck crashes happen between 6 and 10 am, above California; consider earlier or later starts where possible.
- 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 Contra Costa County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| I-680 | 8 |
| SR-4 | 2 |
| Clayton Rd | 1 |
| Merriewood Dr | 1 |
| Pacheco Blvd | 1 |
| Port Chicago Hwy | 1 |
| Reliez Valley Rd | 1 |
| SR-24 | 1 |
| SR-242 | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Contra Costa County) |
|---|---|
| SR-4 | 21 |
| I-680 | 14 |
| Sr-4 W/B | 8 |
| Sr-4 E/B | 5 |
| Richmond Pkwy/Pittsburg Av | 5 |
| Clayton Rd | 4 |
| I-80 | 4 |
| Sr160 Sb/1500Ft N Wilbur Av | 3 |
Acalanes Ridge at a glance
| Land area | 0.5 sq mi |
| Median household income (ZIP 94597) | $132,063 |
| Median home value (ZIP 94597) | $1,029,219 |
Waste facilities and haulers nearby
Historical data: truck crashes in Contra Costa 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 | — | — | 4.8 |
| 2000s | 123 | — | 4.4 |
| 2010s | 176 | +43% | 3.7 |
| 2020s | 207 | +17% | 6.2 |
In the 2000s about 123 truck crashes a year were reported; in the 2020s, about 207. Reporting coverage also changed between these periods. NHTSA counts 5.8 fatal large-truck crashes a year in 2016–19 and 6.2 a year in 2020–24.
Nearby places
Questions fleets ask about Acalanes Ridge
How many truck accidents are there in Acalanes Ridge?
2,377 truck crashes have been reported in Contra Costa County since 2015, with 73 deaths and 1,171 injuries.
What is the most dangerous road for trucks in Acalanes Ridge?
Since 2015, I-680 has had the most fatal large-truck crashes within 10 miles of Acalanes Ridge: 8.
What is the worst month for truck crashes in Acalanes Ridge?
The worst month is August: 10.1% of truck crashes in Contra Costa County happen then.
How many garbage truck crashes are there in Acalanes Ridge?
Garbage trucks were involved in 60 reported crashes in Contra Costa County since 2015 (2.5% of truck crashes).
How do truck crashes in Acalanes Ridge compare with California?
Contra Costa County records 17.7 truck crashes per 100,000 residents a year, against 33.2 across California.
How can I plan a safer truck route in Acalanes Ridge?
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.