Grimes, CA truck route planning & crash data
Plan safer truck routes in Grimes: commercial truck and garbage truck crashes in Grimes and Colusa County, dangerous roads, seasonality and route safety data for fleets. Patterns use Colusa County numbers.
Where fatal truck crashes happened
Risk scorecard
Key findings
Snapshot
Crashes by month
Garbage trucks vs all trucks
3 of 393 truck crashes since 2015.
Deadliest roads
How Colusa County compares with California
Colusa County against California and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Colusa County stands out
Full comparison
| Measure (2015–2025) | Colusa County | California | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 157.3 | 33.2 | 49.7 | 4.7× the state |
| Deaths per 100 crashes | 5.5 | 3.6 | 3.4 | 1.5× the state |
| Injuries per crash | 0.34 | 0.44 | 0.49 | 23% below the state |
| Garbage-truck share | 0.8% | 1.6% | 2.3% | 52% below the state |
| On snow, slush or ice | 0.0% | 0.9% | 6.2% | 100% below the state |
| Morning rush (6–10 am) | 23.0% | 23.5% | 23.7% | same |
| In rain, sleet or snow | 4.2% | 6.5% | 13.8% | 36% below the state |
| Winter months (Nov–Mar) | 31.9% | 40.2% | 41.9% | 21% below the state |
| After dark | 30.6% | 29.1% | 24.8% | same |
Compared with California, Colusa County is lower on injuries per crash, garbage-truck share and on snow, slush or ice. Where it is higher: crashes per 100k residents / yr and deaths per 100 crashes.
What stands out in Colusa County: September 16.0% of truck crashes happen in September, more than any other month.
Overview
Colusa County has recorded 393 truck crashes since 2015, with 134 people injured and 21 killed.
That averages about one truck crash every 11 days in fully reported years.
With 0 truck crashes reported in Grimes since 2015, this page uses Colusa County numbers for its patterns and comparisons.
When crashes happen
September has the most truck crashes, 16.0% of the yearly total, while January has the fewest (5.3%).
Winter months (Nov–Mar) carry 31.9% of truck crashes, vs 40.2% for California.
By time of day, 7–8 am stands out with 8.7% of truck crashes.
Road surface: 0.0% of truck crashes were on snow, slush or ice (California: 0.9%).
Where crashes happen
SR-20 leads within 10 miles of Grimes with 5 fatal crashes involving a large truck since 2015. It is followed by Butte Slough Rd (1) and Reclamation Rd (1).
Garbage & waste trucks
Garbage trucks account for 3 of the truck crashes here, or 0.8%, compared with 1.6% in California.
Route planning tips for Grimes fleets
- Review driver schedules for September, the month with the most truck crashes.
- Where you can, review stops along SR-20; it has the most fatal large-truck crashes nearby.
- 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 Colusa County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| SR-20 | 5 |
| Butte Slough Rd | 1 |
| Reclamation Rd | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Colusa County) |
|---|---|
| Rt5/1000Ft N Greenbay Rd | 4 |
| SR-20 | 4 |
| Rt5 Nb/1.6M N Lurline Rd O/C | 3 |
| Rt 5/Rt 20 | 3 |
| Old Hwy 99W/1M N Hahn Rd | 3 |
| Lonestar Road | 2 |
| Old Hwy 99W/Myers Rd | 2 |
| Rt20/2.1M W Walnut Dr | 2 |
Grimes at a glance
| Land area | 2.3 sq mi |
Waste facilities and haulers nearby
Historical data: truck crashes in Colusa 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 | — | — | 0.8 |
| 2000s | 26 | — | 0.9 |
| 2010s | 29 | +11% | 1.4 |
| 2020s | 34 | +19% | 1.8 |
From the 2000s to the 2020s, yearly reported truck crashes went from 26 to 34. Some of the change may reflect how crashes were reported. Fatal crashes involving a large truck averaged 1.8 a year in 2016–19 and 1.8 a year in 2020–24.
Nearby places
Questions fleets ask about Grimes
How many truck accidents are there in Grimes?
Colusa County has had 393 reported truck crashes since 2015, injuring 134 people and killing 21.
Where do fatal truck crashes happen most in Grimes?
NHTSA data shows SR-20 with 5 fatal large-truck crashes within 10 miles of Grimes since 2015, the highest of any road.
What is the worst month for truck crashes in Grimes?
The worst month is September: 16.0% of truck crashes in Colusa County happen then.
Are garbage truck crashes common in Grimes?
3 crashes involving garbage or refuse trucks have been reported in Colusa County since 2015, 0.8% of all truck crashes.
How does Grimes compare with California for truck crashes?
The yearly rate is 157.3 truck crashes per 100,000 residents in Colusa County, vs 33.2 for California.
What is the best way to plan truck routes in Grimes?
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.