Troy Township, Day County, SD truck route planning & crash data
Plan safer truck routes in Troy Township, Day County: commercial truck and garbage truck crashes in Troy Township, Day County and Day County, dangerous roads, seasonality and route safety data for fleets. Patterns use Day County numbers.
Where fatal truck crashes happened
Risk scorecard
Key findings
Snapshot
Crashes by month
Garbage trucks vs all trucks
1 of 53 truck crashes since 2015.
Deadliest roads
No fatal large-truck crashes with a road name recorded here since 2015.
How Day County compares with South Dakota
Day County against South Dakota and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Day County stands out
Full comparison
| Measure (2015–2025) | Day County | South Dakota | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 80.7 | 42.0 | 49.7 | 1.9× the state |
| Deaths per 100 crashes | 2.1 | 5.2 | 3.4 | 60% below the state |
| Injuries per crash | 0.12 | 0.13 | 0.49 | 8% below the state |
| Garbage-truck share | 2.1% | 1.6% | 2.3% | 1.3× the state |
| On snow, slush or ice | 27.1% | 28.6% | 6.2% | same |
| Morning rush (6–10 am) | 22.9% | 22.2% | 23.7% | same |
| In rain, sleet or snow | 10.4% | 17.5% | 13.8% | 41% below the state |
| Winter months (Nov–Mar) | 35.4% | 48.8% | 41.9% | 27% below the state |
| After dark | 25.0% | 22.8% | 24.8% | 1.1× the state |
Day County has lower values than South Dakota for deaths per 100 crashes, injuries per crash and in rain, sleet or snow. It stands out for higher crashes per 100k residents / yr, garbage-truck share and after dark.
The headline for Day County: February 15.1% of truck crashes happen in February, more than any other month.
Overview
Day County has recorded 53 truck crashes since 2015, with 7 people injured and 2 killed.
Across the years with complete reporting, that is roughly one truck crash every 84 days.
With 0 truck crashes reported in Troy Township, Day County since 2015, this page uses Day County numbers for its patterns and comparisons.
When crashes happen
February has the most truck crashes, 15.1% of the yearly total, while November has the fewest (1.9%).
November through March accounts for 35.4% of truck crashes here, compared with 48.8% in South Dakota.
The busiest hour is 11 am–12 pm, with 13.2% of truck crashes.
Snow, slush or ice was on the road in 27.1% of truck crashes, compared with 28.6% in South Dakota.
Where crashes happen
No fatal crash involving a large truck has a recorded location within 10 miles of Troy since 2015.
Garbage & waste trucks
Garbage and refuse trucks were involved in 1 crash, 1.9% of the total, against 1.6% across South Dakota.
Route planning tips for Troy Township, Day County fleets
- Build extra time into February routes: it has the most truck crashes here.
- Paste your stops into the free Route Planner to see the risk score, safer alternatives and low bridges.
About the data
Sources: the FMCSA crash file for all reported truck crashes and NHTSA FARS for fatal crashes with a large truck. Every statement here comes straight from those numbers.
Truck crashes by year: all trucks vs garbage trucks
Seasonality: when trucks crash in Day 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 (Day County) |
|---|---|
| US-12 | 39 |
| Sd Hwy 25 | 4 |
| Ave | 1 |
| Main Street | 1 |
| Sd Hwy 27 | 1 |
Troy Township, Day County at a glance
| Population | 33 |
| Land area | 33.9 sq mi |
| Density | 1 per sq mi |
| Median household income (ZIP 57219) | $51,900 |
| Median home value (ZIP 57219) | $94,583 |
Waste facilities and haulers nearby
Historical data: truck crashes in Day 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 | 3 | — | 0.4 |
| 2000s | 3 | +7% | 0.1 |
| 2010s | 5 | +53% | 0.4 |
| 2020s | 5 | +5% | 0.2 |
Reported truck crashes averaged 3 a year in the 1990s and 5 a year in the 2020s. Reporting practices changed over time, so part of any change can come from reporting. Fatal large-truck crashes: 0.0 a year in 2016–19, 0.2 a year in 2020–24.
Nearby places
Questions fleets ask about Troy Township, Day County
How many truck crashes happen in Troy Township, Day County?
Since 2015, 53 crashes involving commercial trucks were reported in Day County (7 injured, 2 killed).
What is the worst month for truck crashes in Troy Township, Day County?
Truck crashes in Day County peak in February, with 15.1% of the year's crashes.
Are garbage truck crashes common in Troy Township, Day County?
1 crash involving garbage or refuse trucks have been reported in Day County since 2015, 1.9% of all truck crashes.
What is the truck crash rate in Troy Township, Day County compared with South Dakota?
Per 100,000 residents, Day County has 80.7 truck crashes a year; South Dakota has 42.0.
How can I plan a safer truck route in Troy Township, Day County?
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.