Washington Township, Clark County, SD truck route planning & crash data
Plan safer truck routes in Washington Township, Clark County: commercial truck and garbage truck crashes in Washington Township, Clark County and Clark County, dangerous roads, seasonality and route safety data for fleets. Patterns use Clark County numbers.
Where fatal truck crashes happened
Risk scorecard
Key findings
Snapshot
Crashes by month
Garbage trucks vs all trucks
0 of 26 truck crashes since 2015.
Deadliest roads
How Clark County compares with South Dakota
Clark County against South Dakota and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Clark County stands out
Full comparison
| Measure (2015–2025) | Clark County | South Dakota | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 52.6 | 42.0 | 49.7 | 1.3× the state |
| Deaths per 100 crashes | 26.1 | 5.2 | 3.4 | 5.0× the state |
| Injuries per crash | 0.26 | 0.13 | 0.49 | 2.0× the state |
| Garbage-truck share | 0.0% | 1.6% | 2.3% | 100% below the state |
| On snow, slush or ice | 13.0% | 28.6% | 6.2% | 54% below the state |
| Morning rush (6–10 am) | 21.7% | 22.2% | 23.7% | same |
| In rain, sleet or snow | 8.7% | 17.5% | 13.8% | 50% below the state |
| Winter months (Nov–Mar) | 34.8% | 48.8% | 41.9% | 29% below the state |
| After dark | 17.4% | 22.8% | 24.8% | 24% below the state |
Clark County has lower values than South Dakota for garbage-truck share, on snow, slush or ice and in rain, sleet or snow. It stands out for higher crashes per 100k residents / yr, deaths per 100 crashes and injuries per crash.
What stands out in Clark County: 26.1 deaths per 100 truck crashes, vs 5.2 in South Dakota.
Overview
Since 2015, 26 crashes involving commercial trucks have been reported in Clark County. They injured 6 people and killed 7.
In complete reporting years that works out to about one truck crash every 175 days.
Only 0 truck crashes were reported in Washington Township, Clark County since 2015; patterns below come from Clark County as a whole.
When crashes happen
The worst month is October with 26.9% of truck crashes; the quietest is June at 0.0%.
The five winter months (November to March) hold 34.8% of truck crashes, against 48.8% across South Dakota.
The busiest hour is 9–10 am, with 15.4% of truck crashes.
Snow, slush or ice was on the road in 13.0% of truck crashes, compared with 28.6% in South Dakota.
Where crashes happen
Roads with fatal crashes involving a large truck within 10 miles of Washington since 2015: CR-200 St (1). No single road stands out.
Garbage & waste trucks
No crashes involving garbage or refuse trucks have been reported in Clark County since 2015.
Route planning tips for Washington Township, Clark County fleets
- Review driver schedules for October, the month with the most truck crashes.
- 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 Clark County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| CR-200 St | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Clark County) |
|---|---|
| US-212 | 8 |
| Sd Hwy 20 | 4 |
| Sd Hwy 25 | 4 |
| Ave | 3 |
| Sd Hwy 28 | 3 |
| 424Th Ave | 1 |
Washington Township, Clark County at a glance
| Population | 88 |
| Land area | 35.5 sq mi |
| Density | 2 per sq mi |
| Median household income (ZIP 57221) | $73,988 |
| Median home value (ZIP 57221) | $228,781 |
Historical data: truck crashes in Clark 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 | — | 0.3 |
| 2000s | 2 | +57% | 0.2 |
| 2010s | 3 | +23% | 0.1 |
| 2020s | 2 | -14% | 0.4 |
Reported truck crashes averaged 1 a year in the 1990s and 2 a year in the 2020s. Reporting practices changed over time, so part of any change can come from reporting. NHTSA counts 0.2 fatal large-truck crashes a year in 2016–19 and 0.4 a year in 2020–24.
Nearby places
Questions fleets ask about Washington Township, Clark County
How many truck accidents are there in Washington Township, Clark County?
26 truck crashes have been reported in Clark County since 2015, with 7 deaths and 6 injuries.
Which month has the most truck crashes in Washington Township, Clark County?
Truck crashes in Clark County peak in October, with 26.9% of the year's crashes.
How many garbage truck crashes are there in Washington Township, Clark County?
Garbage trucks were involved in 0 reported crashes in Clark County since 2015 (0.0% of truck crashes).
What is the truck crash rate in Washington Township, Clark County compared with South Dakota?
Per 100,000 residents, Clark County has 52.6 truck crashes a year; South Dakota has 42.0.
How can I plan a safer truck route in Washington Township, Clark County?
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.