San Anselmo, CA truck route planning & crash data
Plan safer truck routes in San Anselmo: commercial truck and garbage truck crashes in San Anselmo and Marin County, dangerous roads, seasonality and route safety data for fleets. Patterns use Marin County numbers.
Where fatal truck crashes happened
Risk scorecard
Key findings
Snapshot
Crashes by month
Garbage trucks vs all trucks
21 of 487 truck crashes since 2015.
Deadliest roads
How Marin County compares with California
Marin County against California and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Marin County stands out
Full comparison
| Measure (2015–2025) | Marin County | California | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 16.3 | 33.2 | 49.7 | 51% below the state |
| Deaths per 100 crashes | 4.3 | 3.6 | 3.4 | 1.2× the state |
| Injuries per crash | 0.37 | 0.44 | 0.49 | 16% below the state |
| Garbage-truck share | 4.1% | 1.6% | 2.3% | 2.5× the state |
| On snow, slush or ice | 0.4% | 0.9% | 6.2% | 54% below the state |
| Morning rush (6–10 am) | 31.7% | 23.5% | 23.7% | 1.3× the state |
| In rain, sleet or snow | 8.7% | 6.5% | 13.8% | 1.3× the state |
| Winter months (Nov–Mar) | 43.4% | 40.2% | 41.9% | 1.1× the state |
| After dark | 16.3% | 29.1% | 24.8% | 44% below the state |
Compared with California, Marin County is lower on crashes per 100k residents / yr, injuries per crash and on snow, slush or ice. It runs above California on deaths per 100 crashes, garbage-truck share and morning rush (6–10 am).
What stands out in Marin County: 1 in 24 of truck crashes here involve garbage trucks: 4.1%, vs 1.6% in California.
Overview
Since 2015, 487 crashes involving commercial trucks have been reported in Marin County. They injured 182 people and killed 20.
That averages about one truck crash every 9 days in fully reported years.
With 4 truck crashes reported in San Anselmo since 2015, this page uses Marin County numbers for its patterns and comparisons.
When crashes happen
Truck crashes peak in May (10.1% of the year) and are lowest in April (5.7%).
The five winter months (November to March) hold 43.4% of truck crashes, against 40.2% across California.
The busiest hour is 8–9 am, with 11.7% of truck crashes.
0.4% of truck crashes here happened on snow, slush or ice, against 0.9% across California.
Where crashes happen
Within this area, US-101 had the most fatal crashes involving a large truck since 2015 (2). After it: 3rd St (1), CR-LUCAS Vly Rd (1) and Fourth St (1).
Garbage & waste trucks
Garbage trucks account for 21 of the truck crashes here, or 4.3%, compared with 1.6% in California.
The most garbage-truck crashes happen in December (19%).
Route planning tips for San Anselmo fleets
- Build extra time into May routes: it has the most truck crashes here.
- Where you can, review stops along US-101; it has the most fatal large-truck crashes nearby.
- Waste haulers: December is the peak month for garbage-truck crashes in Marin County.
- 31.7% 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
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 Marin County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| US-101 | 2 |
| 3rd St | 1 |
| CR-LUCAS Vly Rd | 1 |
| Fourth St | 1 |
| I-580 | 1 |
| I-80 | 1 |
| Loma Linda Ave | 1 |
| Los Ranchitos Rd | 1 |
| SR-1 | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Marin County) |
|---|---|
| Us-101 S/B | 9 |
| Bel Marin Keys Bl/Nave Dr | 2 |
| Caledonia St/Pine St | 2 |
| Chileno Valley Rd | 2 |
| N. Knoll Rd | 2 |
| Novato Bl/.4Mi W Of Copper Hill Wy | 2 |
| Rt101/.1M S Alameda Del Prado | 2 |
| Rt101/.1M S San Antonio Rd | 2 |
San Anselmo at a glance
| Population | 12,645 |
| Land area | 2.7 sq mi |
| Density | 4,727 per sq mi |
Waste facilities and haulers nearby
Historical data: truck crashes in Marin 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 | — | — | 1.2 |
| 2000s | 33 | — | 0.8 |
| 2010s | 43 | +29% | 0.8 |
| 2020s | 38 | -12% | 1.2 |
Reported truck crashes averaged 33 a year in the 2000s and 38 a year in the 2020s. Reporting practices changed over time, so part of any change can come from reporting. Fatal crashes involving a large truck averaged 1.2 a year in 2016–19 and 1.2 a year in 2020–24.
Nearby places
Questions fleets ask about San Anselmo
How common are truck crashes in San Anselmo?
Since 2015, 487 crashes involving commercial trucks were reported in Marin County (182 injured, 20 killed).
What is the most dangerous road for trucks in San Anselmo?
NHTSA data shows US-101 with 2 fatal large-truck crashes within 10 miles of San Anselmo since 2015, the highest of any road.
When do most truck crashes happen in San Anselmo?
The worst month is May: 10.1% of truck crashes in Marin County happen then.
Are garbage truck crashes common in San Anselmo?
Garbage trucks were involved in 21 reported crashes in Marin County since 2015 (4.3% of truck crashes).
What is the truck crash rate in San Anselmo compared with California?
Marin County records 16.3 truck crashes per 100,000 residents a year, against 33.2 across California.
How do I plan a garbage truck route in San Anselmo?
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.