Shell Ridge, CA truck route planning & crash data
Plan safer truck routes in Shell Ridge: commercial truck and garbage truck crashes in Shell 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 |
Compared with California, Contra Costa County is lower on crashes per 100k residents / yr, deaths per 100 crashes and on snow, slush or ice. Where it is higher: injuries per crash, garbage-truck share and morning rush (6–10 am).
What stands out in Contra Costa County: 1 in 38 crashes involve a garbage truck (60 since 2015), vs 1.6% across California.
Overview
Police reported 2,377 crashes involving commercial trucks in Contra Costa County since 2015: 1,171 people were injured and 73 were killed.
Across the years with complete reporting, that is roughly one truck crash every 2 days.
With 0 truck crashes reported in Shell Ridge since 2015, this page uses Contra Costa County numbers for its patterns and comparisons.
When crashes happen
The worst month is August with 10.1% of truck crashes; the quietest is November at 7.3%.
The five winter months (November to March) hold 40.8% of truck crashes, against 40.2% across California.
The busiest hour is 8–9 am, 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
Within this area, I-680 had the most fatal crashes involving a large truck since 2015 (8). Next come SR-4 (2), Clayton Rd (1) and Merriewood Dr (1).
Garbage & waste trucks
60 crashes involved a garbage or refuse truck, a 2.5% share (California: 1.6%).
Their busiest month is February, with 15% of garbage-truck crashes.
Per 100 crashes, garbage trucks recorded 3.3 deaths compared with 3.1 for all trucks.
Route planning tips for Shell Ridge fleets
- Plan August schedules with more margin; it is the worst month for truck crashes in Contra Costa County.
- Where you can, review stops along I-680; it has the most fatal large-truck crashes nearby.
- Waste haulers: February is the peak month for garbage-truck crashes in Contra Costa County.
- Morning starts matter: 26.3% of truck crashes fall between 6 and 10 am, higher than California.
- 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 |
Shell Ridge at a glance
| Land area | 0.4 sq mi |
| Median household income (ZIP 94596) | $135,635 |
| Median home value (ZIP 94596) | $1,287,881 |
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 |
From the 2000s to the 2020s, yearly reported truck crashes went from 123 to 207. Some of the change may reflect how crashes were reported. Fatal crashes involving a large truck averaged 5.8 a year in 2016–19 and 6.2 a year in 2020–24.
Nearby places
Questions fleets ask about Shell Ridge
How many truck crashes happen in Shell Ridge?
Since 2015, 2,377 crashes involving commercial trucks were reported in Contra Costa County (1,171 injured, 73 killed).
Which road has the most fatal truck crashes in Shell Ridge?
Since 2015, I-680 has had the most fatal large-truck crashes within 10 miles of Shell Ridge: 8.
Which month has the most truck crashes in Shell Ridge?
August has the most truck crashes in Contra Costa County, 10.1% of the yearly total.
How many garbage truck crashes are there in Shell Ridge?
60 crashes involving garbage or refuse trucks have been reported in Contra Costa County since 2015, 2.5% of all truck crashes.
What is the truck crash rate in Shell Ridge compared 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 Shell 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.