Affton, MO truck route planning & crash data
Plan safer truck routes in Affton: commercial truck and garbage truck crashes in Affton and St. Louis County, dangerous roads, seasonality and route safety data for fleets. Patterns use St. Louis County numbers.
Where fatal truck crashes happened
Risk scorecard
Key findings
Snapshot
Crashes by month
Garbage trucks vs all trucks
1.0 deaths per 100 garbage-truck crashes vs 1.4 for all trucks.
Deadliest roads
How St. Louis County compares with Missouri
St. Louis County against Missouri and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where St. Louis County stands out
Full comparison
| Measure (2015–2025) | St. Louis County | Missouri | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 64.5 | 85.9 | 49.7 | 25% below the state |
| Deaths per 100 crashes | 1.4 | 2.7 | 3.4 | 48% below the state |
| Injuries per crash | 0.48 | 0.44 | 0.49 | 1.1× the state |
| Garbage-truck share | 2.9% | 2.2% | 2.3% | 1.3× the state |
| On snow, slush or ice | 4.0% | 7.2% | 6.2% | 44% below the state |
| Morning rush (6–10 am) | 25.9% | 22.8% | 23.7% | 1.1× the state |
| In rain, sleet or snow | 10.8% | 10.7% | 13.8% | same |
| Winter months (Nov–Mar) | 39.5% | 40.7% | 41.9% | same |
| After dark | 21.9% | 24.7% | 24.8% | 11% below the state |
Compared with Missouri, St. Louis County is lower 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).
What stands out in Affton: I-44 most fatal truck crashes within 10 miles of Affton: 14 since 2015.
Overview
Since 2015, 7,484 crashes involving commercial trucks have been reported in St. Louis County. They injured 3,619 people and killed 111.
Across the years with complete reporting, that is roughly 2 truck crashes every day.
Affton had 0 reported truck crashes since 2015, too few for reliable patterns, so the charts and findings on this page use St. Louis County numbers.
When crashes happen
Truck crashes peak in June (9.4% of the year) and are lowest in March (6.9%).
Winter months (Nov–Mar) carry 39.5% of truck crashes, vs 40.7% for Missouri.
More truck crashes happen at 3–4 pm than at any other hour (7.8%).
Road surface: 4.0% of truck crashes were on snow, slush or ice (Missouri: 7.2%).
Where crashes happen
Within this area, I-44 had the most fatal crashes involving a large truck since 2015 (14). Next come I-55 (8), I-270 (6) and SR-3 (5).
Garbage & waste trucks
214 crashes involved a garbage or refuse truck, a 2.9% share (Missouri: 2.2%).
Garbage-truck crashes peak in January (12% of them).
Deaths per 100 garbage-truck crashes: 1.0, vs 1.4 for all truck crashes.
Route planning tips for Affton fleets
- Plan June schedules with more margin; it is the worst month for truck crashes in St. Louis County.
- Check whether your routes use I-44, the road with the most fatal truck crashes in this area.
- Waste haulers: January is the peak month for garbage-truck crashes in St. Louis County.
- The morning rush (6–10 am) holds 25.9% of truck crashes here, more than Missouri; adjust start times where you can.
- Use the free Route Planner to score your route and spot low bridges before drivers head out.
About the data
This report uses the FMCSA crash file (reported crashes of trucks over 10,000 lb) and NHTSA FARS (fatal crashes). It reports the numbers without guessing at reasons.
Truck crashes by year: all trucks vs garbage trucks
Seasonality: when trucks crash in St. Louis County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| I-44 | 14 |
| I-55 | 8 |
| I-270 | 6 |
| SR-3 | 5 |
| I-255 | 3 |
| I-64 | 3 |
| 14th St | 1 |
| 4th St | 1 |
| Barton St | 1 |
| Broadway | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (St. Louis County) |
|---|---|
| Is 270 | 1,585 |
| Is 44 | 830 |
| Is 70 | 808 |
| Is 64 | 430 |
| Mo 141 | 233 |
| Is 55 | 211 |
| Is 170 | 170 |
| US-67 | 114 |
Affton at a glance
| Land area | 4.6 sq mi |
| Median household income (ZIP 63123) | $77,055 |
| Median home value (ZIP 63123) | $217,653 |
Waste facilities and haulers nearby
Historical data: truck crashes in St. Louis 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 | 422 | — | 6.5 |
| 2000s | 361 | -14% | 6.8 |
| 2010s | 469 | +30% | 5.4 |
| 2020s | 655 | +40% | 9.0 |
Reported truck crashes averaged 422 a year in the 1990s and 655 a year in the 2020s. Reporting practices changed over time, so part of any change can come from reporting. Fatal large-truck crashes: 5.8 a year in 2016–19, 9.0 a year in 2020–24.
Nearby places
Questions fleets ask about Affton
How many truck accidents are there in Affton?
St. Louis County has had 7,484 reported truck crashes since 2015, injuring 3,619 people and killing 111.
Where do fatal truck crashes happen most in Affton?
NHTSA data shows I-44 with 14 fatal large-truck crashes within 10 miles of Affton since 2015, the highest of any road.
When do most truck crashes happen in Affton?
Truck crashes in St. Louis County peak in June, with 9.4% of the year's crashes.
How many garbage truck accidents happen in Affton?
Since 2015, St. Louis County has reported 214 garbage-truck crashes, or 2.9% of its truck crashes.
How do truck crashes in Affton compare with Missouri?
Per 100,000 residents, St. Louis County has 64.5 truck crashes a year; Missouri has 85.9.
How do I plan a garbage truck route in Affton?
Paste your stops into the free CurbWaste Route Planner: it scores your route against fatal-crash locations, suggests safer alternatives and flags low bridges.
2026 is a partial year. Updated October 2026.