Columbia, CA truck route planning & crash data
Plan safer truck routes in Columbia: commercial truck and garbage truck crashes in Columbia and Calaveras County, dangerous roads, seasonality and route safety data for fleets. Patterns use Calaveras County numbers.
Where fatal truck crashes happened
Risk scorecard
Key findings
Snapshot
Crashes by month
Garbage trucks vs all trucks
7 of 194 truck crashes since 2015.
Deadliest roads
How Calaveras County compares with California
Calaveras County against California and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Calaveras County stands out
Full comparison
| Measure (2015–2025) | Calaveras County | California | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 35.4 | 33.2 | 49.7 | same |
| Deaths per 100 crashes | 7.2 | 3.6 | 3.4 | 2.0× the state |
| Injuries per crash | 0.43 | 0.44 | 0.49 | same |
| Garbage-truck share | 3.9% | 1.6% | 2.3% | 2.4× the state |
| On snow, slush or ice | 2.8% | 0.9% | 6.2% | 3.0× the state |
| Morning rush (6–10 am) | 31.5% | 23.5% | 23.7% | 1.3× the state |
| In rain, sleet or snow | 5.5% | 6.5% | 13.8% | 15% below the state |
| Winter months (Nov–Mar) | 34.2% | 40.2% | 41.9% | 15% below the state |
| After dark | 14.9% | 29.1% | 24.8% | 49% below the state |
Calaveras County sits below California on in rain, sleet or snow, winter months (nov–mar) and after dark. Where it is higher: deaths per 100 crashes, garbage-truck share and on snow, slush or ice.
Calaveras County at a glance: 2.8% on snowy, slushy or icy roads, against 0.9% across California.
Overview
Calaveras County has recorded 194 truck crashes since 2015, with 85 people injured and 13 killed.
Across the years with complete reporting, that is roughly one truck crash every 22 days.
With 0 truck crashes reported in Columbia since 2015, this page uses Calaveras County numbers for its patterns and comparisons.
When crashes happen
July has the most truck crashes, 12.4% of the yearly total, while March has the fewest (4.1%).
November through March accounts for 34.2% of truck crashes here, compared with 40.2% in California.
More truck crashes happen at 9–10 am than at any other hour (9.8%).
Snow, slush or ice was on the road in 2.8% of truck crashes, compared with 0.9% in California.
Where crashes happen
SR-108 leads within 10 miles of Columbia with 3 fatal crashes involving a large truck since 2015. After it: SR-49 (2) and SR-4 (1).
Garbage & waste trucks
7 crashes involved a garbage or refuse truck, a 3.6% share (California: 1.6%).
Route planning tips for Columbia fleets
- Plan July schedules with more margin; it is the worst month for truck crashes in Calaveras County.
- Look at alternatives to SR-108 at busy times: it leads this area in fatal truck crashes.
- Morning starts matter: 31.5% of truck crashes fall between 6 and 10 am, higher than California.
- 2.8% of truck crashes were on snow, slush or ice, above California; plan winter equipment checks before the season.
- Use the free Route Planner to score your route and spot low bridges before drivers head out.
About the data
Sources: the FMCSA crash file for all reported truck crashes and NHTSA FARS for fatal crashes with a large truck. Every statement here comes straight from those numbers.
Truck crashes by year: all trucks vs garbage trucks
Seasonality: when trucks crash in Calaveras County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| SR-108 | 3 |
| SR-49 | 2 |
| SR-4 | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Calaveras County) |
|---|---|
| SR-49 | 5 |
| Rt49/1.3M S Red Hill Rd | 3 |
| Mountain Ranch Rd/.4M E Rocky Rd | 2 |
| Rt12/Burson Rd | 2 |
| Rt26/ Rt49 | 2 |
| Rt26/Silver Rapids Rd | 2 |
| Rt49/Pool Station Rd | 2 |
| Sr4/.2M E Vallecito Rd | 2 |
Columbia at a glance
| Land area | 6.0 sq mi |
| Median household income (ZIP 95251) | $127,775 |
Waste facilities and haulers nearby
Historical data: truck crashes in Calaveras 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 | — | — | 0.3 |
| 2000s | 15 | — | 0.5 |
| 2010s | 14 | -6% | 1.1 |
| 2020s | 14 | +4% | 0.2 |
In the 2000s about 15 truck crashes a year were reported; in the 2020s, about 14. Reporting coverage also changed between these periods. NHTSA counts 2.2 fatal large-truck crashes a year in 2016–19 and 0.2 a year in 2020–24.
Nearby places
Questions fleets ask about Columbia
How many truck crashes happen in Columbia?
Since 2015, 194 crashes involving commercial trucks were reported in Calaveras County (85 injured, 13 killed).
Where do fatal truck crashes happen most in Columbia?
SR-108 had 3 fatal crashes involving a large truck within 10 miles of Columbia since 2015, more than any other road.
What is the worst month for truck crashes in Columbia?
Truck crashes in Calaveras County peak in July, with 12.4% of the year's crashes.
How many garbage truck crashes are there in Columbia?
7 crashes involving garbage or refuse trucks have been reported in Calaveras County since 2015, 3.6% of all truck crashes.
How do truck crashes in Columbia compare with California?
Calaveras County records 35.4 truck crashes per 100,000 residents a year, against 33.2 across California.
What is the best way to plan truck routes in Columbia?
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.