Ash Township, Pennington County, SD truck route planning & crash data
Plan safer truck routes in Ash Township, Pennington County: commercial truck and garbage truck crashes in Ash Township, Pennington County and Pennington County, dangerous roads, seasonality and route safety data for fleets. Patterns use Pennington County numbers.
Where fatal truck crashes happened
Risk scorecard
Key findings
Snapshot
Crashes by month
Garbage trucks vs all trucks
10 of 399 truck crashes since 2015.
Deadliest roads
No fatal large-truck crashes with a road name recorded here since 2015.
How Pennington County compares with South Dakota
Pennington County against South Dakota and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Pennington County stands out
Full comparison
| Measure (2015–2025) | Pennington County | South Dakota | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 29.1 | 42.0 | 49.7 | 31% below the state |
| Deaths per 100 crashes | 3.0 | 5.2 | 3.4 | 42% below the state |
| Injuries per crash | 0.10 | 0.13 | 0.49 | 23% below the state |
| Garbage-truck share | 2.4% | 1.6% | 2.3% | 1.5× the state |
| On snow, slush or ice | 28.8% | 28.6% | 6.2% | same |
| Morning rush (6–10 am) | 21.0% | 22.2% | 23.7% | same |
| In rain, sleet or snow | 20.0% | 17.5% | 13.8% | 1.1× the state |
| Winter months (Nov–Mar) | 48.2% | 48.8% | 41.9% | same |
| After dark | 27.2% | 22.8% | 24.8% | 1.2× the state |
Pennington County has lower values than South Dakota for crashes per 100k residents / yr, deaths per 100 crashes and injuries per crash. It runs above South Dakota on garbage-truck share, in rain, sleet or snow and after dark.
What stands out in Pennington County: 1 in 41 garbage-truck share of crashes is 2.4%, against 1.6% for South Dakota.
Overview
Police reported 399 crashes involving commercial trucks in Pennington County since 2015: 38 people were injured and 11 were killed.
In complete reporting years that works out to about one truck crash every 11 days.
Only 0 truck crashes were reported in Ash Township, Pennington County since 2015; patterns below come from Pennington County as a whole.
When crashes happen
January has the most truck crashes, 11.8% of the yearly total, while February has the fewest (5.3%).
November through March accounts for 48.2% of truck crashes here, compared with 48.8% in South Dakota.
By time of day, 2–3 pm stands out with 8.8% of truck crashes.
Road surface: 28.8% of truck crashes were on snow, slush or ice (South Dakota: 28.6%).
Where crashes happen
Since 2015, no fatal large-truck crashes with a location were recorded within 10 miles of Ash.
Garbage & waste trucks
Garbage and refuse trucks were involved in 10 crashes, 2.5% of the total, against 1.6% across South Dakota.
Route planning tips for Ash Township, Pennington County fleets
- Plan January schedules with more margin; it is the worst month for truck crashes in Pennington County.
- 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 Pennington County
By hour of day
Most dangerous roads for trucks
No fatal crashes involving a large truck with a road name were recorded within 10 miles since 2015.
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Pennington County) |
|---|---|
| I-90 | 194 |
| US-16 | 39 |
| Sd Hwy 44 | 26 |
| Sd Hwy 79 | 16 |
| Ave | 7 |
| Sd Hwy 445 | 7 |
| Us Hwy 16 B | 5 |
| Cambell St | 4 |
Ash Township, Pennington County at a glance
| Population | 20 |
| Land area | 43.8 sq mi |
| Density | 0 per sq mi |
| Median household income (ZIP 57790) | $75,096 |
| Median home value (ZIP 57790) | $209,725 |
Waste facilities and haulers nearby
Historical data: truck crashes in Pennington 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 | 23 | — | 0.7 |
| 2000s | 24 | +2% | 1.0 |
| 2010s | 25 | +5% | 0.5 |
| 2020s | 42 | +67% | 1.0 |
From the 1990s to the 2020s, yearly reported truck crashes went from 23 to 42. Some of the change may reflect how crashes were reported. Fatal crashes involving a large truck averaged 1.0 a year in 2016–19 and 1.0 a year in 2020–24.
Nearby places
Questions fleets ask about Ash Township, Pennington County
How many truck crashes happen in Ash Township, Pennington County?
Pennington County has had 399 reported truck crashes since 2015, injuring 38 people and killing 11.
Which month has the most truck crashes in Ash Township, Pennington County?
January has the most truck crashes in Pennington County, 11.8% of the yearly total.
How many garbage truck accidents happen in Ash Township, Pennington County?
10 crashes involving garbage or refuse trucks have been reported in Pennington County since 2015, 2.5% of all truck crashes.
How do truck crashes in Ash Township, Pennington County compare with South Dakota?
Per 100,000 residents, Pennington County has 29.1 truck crashes a year; South Dakota has 42.0.
How do I plan a garbage truck route in Ash Township, Pennington 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.