Potosi, MO truck route planning & crash data
Plan safer truck routes in Potosi: commercial truck and garbage truck crashes in Potosi and Washington County, dangerous roads, seasonality and route safety data for fleets. Patterns use Washington County numbers.
Where fatal truck crashes happened
Risk scorecard
Key findings
Snapshot
Crashes by month
Garbage trucks vs all trucks
5 of 191 truck crashes since 2015.
Deadliest roads
How Washington County compares with Missouri
Washington County against Missouri and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Washington County stands out
Full comparison
| Measure (2015–2025) | Washington County | Missouri | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 69.8 | 85.9 | 49.7 | 19% below the state |
| Deaths per 100 crashes | 6.6 | 2.7 | 3.4 | 2.4× the state |
| Injuries per crash | 0.80 | 0.44 | 0.49 | 1.8× the state |
| Garbage-truck share | 2.2% | 2.2% | 2.3% | same |
| On snow, slush or ice | 1.7% | 7.2% | 6.2% | 77% below the state |
| Morning rush (6–10 am) | 24.3% | 22.8% | 23.7% | same |
| In rain, sleet or snow | 2.8% | 10.7% | 13.8% | 74% below the state |
| Winter months (Nov–Mar) | 33.1% | 40.7% | 41.9% | 18% below the state |
| After dark | 14.9% | 24.7% | 24.8% | 40% below the state |
Washington County has lower values than Missouri for crashes per 100k residents / yr, on snow, slush or ice and in rain, sleet or snow. It stands out for higher deaths per 100 crashes and injuries per crash.
The headline for Washington County: 6.6 deaths for every 100 truck crashes, against 2.7 across Missouri.
Overview
Washington County has recorded 191 truck crashes since 2015, with 151 people injured and 12 killed.
That averages about one truck crash every 22 days in fully reported years.
Only 20 truck crashes were reported in Potosi since 2015; patterns below come from Washington County as a whole.
When crashes happen
The worst month is May with 15.2% of truck crashes; the quietest is January at 4.2%.
Winter months (Nov–Mar) carry 33.1% of truck crashes, vs 40.7% for Missouri.
By time of day, 11 am–12 pm stands out with 11.0% of truck crashes.
1.7% of truck crashes here happened on snow, slush or ice, against 7.2% across Missouri.
Where crashes happen
Within this area, SR-21 had the most fatal crashes involving a large truck since 2015 (4). It is followed by SR-8 (3) and SR-47 (1).
Garbage & waste trucks
Garbage trucks account for 5 of the truck crashes here, or 2.6%, compared with 2.2% in Missouri.
Route planning tips for Potosi fleets
- Build extra time into May routes: it has the most truck crashes here.
- Where you can, review stops along SR-21; it has the most fatal large-truck crashes nearby.
- Paste your stops into the free Route Planner to see the risk score, safer alternatives and low bridges.
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 Washington County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| SR-21 | 4 |
| SR-8 | 3 |
| SR-47 | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Washington County) |
|---|---|
| Mo 21 | 52 |
| Mo 8 | 47 |
| Mo 185 | 17 |
| Mo 47 | 14 |
| Rt C | 6 |
| Rt A | 6 |
| Rt F | 4 |
| Rt P | 4 |
Potosi at a glance
| Population | 2,549 |
| Land area | 2.3 sq mi |
| Density | 1,095 per sq mi |
| Median household income (ZIP 63660) | $51,410 |
| Median home value (ZIP 63660) | $130,784 |
Waste facilities and haulers nearby
Historical data: truck crashes in Washington 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 | 14 | — | 0.9 |
| 2000s | 10 | -23% | 0.9 |
| 2010s | 12 | +16% | 0.5 |
| 2020s | 16 | +33% | 0.8 |
Reported truck crashes averaged 14 a year in the 1990s and 16 a year in the 2020s. Reporting practices changed over time, so part of any change can come from reporting. NHTSA counts 0.8 fatal large-truck crashes a year in 2016–19 and 0.8 a year in 2020–24.
Nearby places
Questions fleets ask about Potosi
How many truck crashes happen in Potosi?
191 truck crashes have been reported in Washington County since 2015, with 12 deaths and 151 injuries.
Where do fatal truck crashes happen most in Potosi?
NHTSA data shows SR-21 with 4 fatal large-truck crashes within 10 miles of Potosi since 2015, the highest of any road.
When do most truck crashes happen in Potosi?
May has the most truck crashes in Washington County, 15.2% of the yearly total.
How many garbage truck crashes are there in Potosi?
Garbage trucks were involved in 5 reported crashes in Washington County since 2015 (2.6% of truck crashes).
How does Potosi compare with Missouri for truck crashes?
The yearly rate is 69.8 truck crashes per 100,000 residents in Washington County, vs 85.9 for Missouri.
How do I plan a garbage truck route in Potosi?
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.