Brentwood, CA truck route planning & crash data
Plan safer truck routes in Brentwood: commercial truck and garbage truck crashes in Brentwood 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 stands out for higher injuries per crash, garbage-truck share and morning rush (6–10 am).
Contra Costa County at a glance: 1 in 38 crashes involve a garbage truck (60 since 2015), vs 1.6% across 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.
That averages about one truck crash every 2 days in fully reported years.
With 37 truck crashes reported in Brentwood since 2015, this page uses Contra Costa County numbers for its patterns and comparisons.
When crashes happen
Truck crashes peak in August (10.1% of the year) and are lowest in November (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.
Road surface: 0.1% of truck crashes were on snow, slush or ice (California: 0.9%).
Where crashes happen
Within this area, SR-4 had the most fatal crashes involving a large truck since 2015 (12). Next come Vasco Rd (2), Byron Hwy (1) and CR-MARSH Creek Road (1).
Garbage & waste trucks
60 crashes involved a garbage or refuse truck, a 2.5% share (California: 1.6%).
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 Brentwood fleets
- Plan August schedules with more margin; it is the worst month for truck crashes in Contra Costa County.
- Check whether your routes use SR-4, the road with the most fatal truck crashes in this area.
- 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) |
|---|---|
| SR-4 | 12 |
| Vasco Rd | 2 |
| Byron Hwy | 1 |
| CR-MARSH Creek Road | 1 |
| CR-VASCO Rd | 1 |
| Neroly Rd | 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 |
Brentwood at a glance
| Population | 66,286 |
| Land area | 14.9 sq mi |
| Density | 4,459 per sq mi |
| Median household income (ZIP 94513) | $142,223 |
| Median home value (ZIP 94513) | $837,161 |
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. 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 Brentwood
How many truck accidents are there in Brentwood?
Contra Costa County has had 2,377 reported truck crashes since 2015, injuring 1,171 people and killing 73.
Where do fatal truck crashes happen most in Brentwood?
NHTSA data shows SR-4 with 12 fatal large-truck crashes within 10 miles of Brentwood since 2015, the highest of any road.
Which month has the most truck crashes in Brentwood?
August has the most truck crashes in Contra Costa County, 10.1% of the yearly total.
How many garbage truck crashes are there in Brentwood?
Garbage trucks were involved in 60 reported crashes in Contra Costa County since 2015 (2.5% of truck crashes).
How does Brentwood compare with California for truck crashes?
The yearly rate is 17.7 truck crashes per 100,000 residents in Contra Costa County, vs 33.2 for California.
How do I plan a garbage truck route in Brentwood?
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.