ZIP 94582 (San Ramon, CA) truck route planning & crash data
Plan safer truck routes around ZIP 94582: commercial truck and garbage truck crashes here and in Contra Costa County, dangerous roads, seasonality and route safety data for fleets.
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 has lower values than California for 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 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.
Across the years with complete reporting, that is roughly one truck crash every 2 days.
When crashes happen
August has the most truck crashes, 10.1% of the yearly total, while November has the fewest (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, I-580 had the most fatal crashes involving a large truck since 2015 (10). It is followed by I-680 (8), Isabel-Stanley Connector (1) and SR-84 (1).
Garbage & waste trucks
Garbage and refuse trucks were involved in 60 crashes, 2.5% of the total, against 1.6% across California.
The most garbage-truck crashes happen in February (15%).
They recorded 3.3 deaths per 100 crashes, against 3.1 for all trucks.
Route planning tips for ZIP 94582 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-580; it has the most fatal large-truck crashes nearby.
- 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.
- Use the free Route Planner to score your route and spot low bridges before drivers head out.
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-580 | 10 |
| I-680 | 8 |
| Isabel-Stanley Connector | 1 |
| SR-84 | 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 |
ZIP 94582 at a glance
| Population | 47,424 |
| Density | 1,365 per sq mi |
| Median household income | $214,677 |
| Median home value | $1,631,280 |
| Home ownership | 70% |
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 large-truck crashes: 5.8 a year in 2016–19, 6.2 a year in 2020–24.
Nearby ZIP codes
Questions fleets ask about ZIP 94582
How common are truck crashes in ZIP 94582?
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 ZIP 94582?
NHTSA data shows I-580 with 10 fatal large-truck crashes within 10 miles of ZIP 94582 since 2015, the highest of any road.
What is the worst month for truck crashes in ZIP 94582?
Truck crashes in Contra Costa County peak in August, with 10.1% of the year's crashes.
Are garbage truck crashes common in ZIP 94582?
Garbage trucks were involved in 60 reported crashes in Contra Costa County since 2015 (2.5% of truck crashes).
How do truck crashes in ZIP 94582 compare with California?
The yearly rate is 17.7 truck crashes per 100,000 residents in Contra Costa County, vs 33.2 for California.
How can I plan a safer truck route in ZIP 94582?
The free Route Planner takes your stops and returns a route risk score, safer alternatives and low-bridge warnings.
2026 is a partial year. Updated October 2026.