Cornwall, SD truck route planning & crash data
Plan safer truck routes in Cornwall: commercial truck and garbage truck crashes in Cornwall and Spink County, dangerous roads, seasonality and route safety data for fleets. Patterns use Spink County numbers.
Where fatal truck crashes happened
Risk scorecard
Key findings
Snapshot
Crashes by month
Garbage trucks vs all trucks
1 of 47 truck crashes since 2015.
Deadliest roads
No fatal large-truck crashes with a road name recorded here since 2015.
How Spink County compares with South Dakota
Spink County against South Dakota and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Spink County stands out
Full comparison
| Measure (2015–2025) | Spink County | South Dakota | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 68.5 | 42.0 | 49.7 | 1.6× the state |
| Deaths per 100 crashes | 4.3 | 5.2 | 3.4 | 17% below the state |
| Injuries per crash | 0.33 | 0.13 | 0.49 | 2.5× the state |
| Garbage-truck share | 2.2% | 1.6% | 2.3% | 1.3× the state |
| On snow, slush or ice | 17.4% | 28.6% | 6.2% | 39% below the state |
| Morning rush (6–10 am) | 17.4% | 22.2% | 23.7% | 22% below the state |
| In rain, sleet or snow | 8.7% | 17.5% | 13.8% | 50% below the state |
| Winter months (Nov–Mar) | 45.6% | 48.8% | 41.9% | same |
| After dark | 17.4% | 22.8% | 24.8% | 24% below the state |
Spink County sits below South Dakota on deaths per 100 crashes, on snow, slush or ice and morning rush (6–10 am). It stands out for higher crashes per 100k residents / yr, injuries per crash and garbage-truck share.
The headline for Spink County: October 17.0% of truck crashes happen in October, more than any other month.
Overview
Police reported 47 crashes involving commercial trucks in Spink County since 2015: 15 people were injured and 2 were killed.
Across the years with complete reporting, that is roughly one truck crash every 87 days.
Cornwall had 0 reported truck crashes since 2015, too few for reliable patterns, so the charts and findings on this page use Spink County numbers.
When crashes happen
The worst month is October with 17.0% of truck crashes; the quietest is April at 2.1%.
The five winter months (November to March) hold 45.6% of truck crashes, against 48.8% across South Dakota.
More truck crashes happen at 1–2 pm than at any other hour (12.8%).
Road surface: 17.4% 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 Cornwall.
Garbage & waste trucks
1 crash involved a garbage or refuse truck, a 2.1% share (South Dakota: 1.6%).
Route planning tips for Cornwall 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
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 Spink 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 (Spink County) |
|---|---|
| US-281 | 18 |
| Sd Hwy 37 | 7 |
| US-212 | 6 |
| Sd Hwy 20 | 3 |
| Ave | 2 |
| Sd Hwy 26 | 2 |
| 183Rd St | 1 |
| 1St St | 1 |
Cornwall at a glance
| Population | 38 |
| Land area | 35.5 sq mi |
| Density | 1 per sq mi |
| Median household income (ZIP 57348) | $83,542 |
| Median home value (ZIP 57348) | $181,998 |
Waste facilities and haulers nearby
Historical data: truck crashes in Spink 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 | 5 | — | 0.2 |
| 2000s | 3 | -35% | 0.2 |
| 2010s | 6 | +71% | 0.2 |
| 2020s | 4 | -25% | 0.2 |
From the 1990s to the 2020s, yearly reported truck crashes went from 5 to 4. Some of the change may reflect how crashes were reported. NHTSA counts 0.0 fatal large-truck crashes a year in 2016–19 and 0.2 a year in 2020–24.
Nearby places
Questions fleets ask about Cornwall
How common are truck crashes in Cornwall?
Spink County has had 47 reported truck crashes since 2015, injuring 15 people and killing 2.
When do most truck crashes happen in Cornwall?
October has the most truck crashes in Spink County, 17.0% of the yearly total.
How many garbage truck crashes are there in Cornwall?
1 crash involving garbage or refuse trucks have been reported in Spink County since 2015, 2.1% of all truck crashes.
How do truck crashes in Cornwall compare with South Dakota?
Per 100,000 residents, Spink County has 68.5 truck crashes a year; South Dakota has 42.0.
What is the best way to plan truck routes in Cornwall?
Use the free Route Planner: enter your stops to get a risk score, safer alternatives and the low bridges on your route.
2026 is a partial year. Updated October 2026.