Ash Township, Clark County, SD truck route planning & crash data
Plan safer truck routes in Ash Township, Clark County: commercial truck and garbage truck crashes in Ash 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 runs above South Dakota on crashes per 100k residents / yr, deaths per 100 crashes and injuries per crash.
The headline for Clark County: 26.1 people killed per 100 truck crashes (South Dakota: 5.2).
Overview
Police reported 26 crashes involving commercial trucks in Clark County since 2015: 6 people were injured and 7 were killed.
In complete reporting years that works out to about one truck crash every 175 days.
Ash Township, Clark County had 0 reported truck crashes since 2015, too few for reliable patterns, so the charts and findings on this page use Clark County numbers.
When crashes happen
The worst month is October with 26.9% of truck crashes; the quietest is June at 0.0%.
November through March accounts for 34.8% of truck crashes here, compared with 48.8% in 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
Fatal large-truck crashes within 10 miles of Ash since 2015 were spread across roads: SR-20 (1).
Garbage & waste trucks
Since 2015, no garbage-truck crashes were reported for Clark County.
Route planning tips for Ash Township, Clark County fleets
- Review driver schedules for October, the month with the most truck crashes.
- Paste your stops into the free Route Planner to see the risk score, safer alternatives and low bridges.
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 Clark County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| SR-20 | 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 |
Ash Township, Clark County at a glance
| Population | 23 |
| Land area | 35.6 sq mi |
| Density | 1 per sq mi |
| Median household income (ZIP 57258) | $58,295 |
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 Ash Township, Clark County
How many truck accidents are there in Ash Township, Clark County?
Since 2015, 26 crashes involving commercial trucks were reported in Clark County (6 injured, 7 killed).
When do most truck crashes happen in Ash Township, Clark County?
October has the most truck crashes in Clark County, 26.9% of the yearly total.
Are garbage truck crashes common in Ash Township, Clark County?
Since 2015, Clark County has reported 0 garbage-truck crashes, or 0.0% of its truck crashes.
What is the truck crash rate in Ash 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.
What is the best way to plan truck routes in Ash 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.