Kennebec, SD truck route planning & crash data
Plan safer truck routes in Kennebec: commercial truck and garbage truck crashes in Kennebec and Lyman County, dangerous roads, seasonality and route safety data for fleets. Patterns use Lyman County numbers.
Where fatal truck crashes happened
Risk scorecard
Key findings
Snapshot
Crashes by month
Garbage trucks vs all trucks
0 of 139 truck crashes since 2015.
Deadliest roads
How Lyman County compares with South Dakota
Lyman County against South Dakota and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Lyman County stands out
Full comparison
| Measure (2015–2025) | Lyman County | South Dakota | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 320.1 | 42.0 | 49.7 | 7.6× the state |
| Deaths per 100 crashes | 5.3 | 5.2 | 3.4 | same |
| Injuries per crash | 0.12 | 0.13 | 0.49 | 8% below the state |
| Garbage-truck share | 0.0% | 1.6% | 2.3% | 100% below the state |
| On snow, slush or ice | 40.5% | 28.6% | 6.2% | 1.4× the state |
| Morning rush (6–10 am) | 19.1% | 22.2% | 23.7% | 14% below the state |
| In rain, sleet or snow | 24.4% | 17.5% | 13.8% | 1.4× the state |
| Winter months (Nov–Mar) | 55.7% | 48.8% | 41.9% | 1.1× the state |
| After dark | 35.1% | 22.8% | 24.8% | 1.5× the state |
Compared with South Dakota, Lyman County is lower on injuries per crash, garbage-truck share and morning rush (6–10 am). It stands out for higher crashes per 100k residents / yr, on snow, slush or ice and in rain, sleet or snow.
What stands out in Lyman County: January worst month: 20.1% of truck crashes, vs 8.3% in an average month.
Overview
Lyman County has recorded 139 truck crashes since 2015, with 25 people injured and 14 killed.
Across the years with complete reporting, that is roughly one truck crash every 31 days.
With 0 truck crashes reported in Kennebec since 2015, this page uses Lyman County numbers for its patterns and comparisons.
When crashes happen
The worst month is January with 20.1% of truck crashes; the quietest is February at 3.6%.
Winter months (Nov–Mar) carry 55.7% of truck crashes, vs 48.8% for South Dakota.
More truck crashes happen at 8–9 am than at any other hour (7.9%).
Snow, slush or ice was on the road in 40.5% 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 Kennebec since 2015: I-90 (2). No single road stands out.
Garbage & waste trucks
FMCSA lists no garbage-truck crashes in Lyman County since 2015.
Route planning tips for Kennebec fleets
- Plan January schedules with more margin; it is the worst month for truck crashes in Lyman County.
- 40.5% of truck crashes were on snow, slush or ice, above South Dakota; plan winter equipment checks before the season.
- Use the free Route Planner to score your route and spot low bridges before drivers head out.
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 Lyman County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| I-90 | 2 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Lyman County) |
|---|---|
| I-90 | 89 |
| Sd Hwy 47 | 22 |
| US-83 | 10 |
| Sd Hwy 248 | 3 |
| 0.169 Miles W Of 324 Ave | 2 |
| Ave | 2 |
| Sd Hwy 273 | 2 |
| US-183 | 2 |
Kennebec at a glance
| Population | 285 |
| Land area | 0.9 sq mi |
| Density | 334 per sq mi |
| Median household income (ZIP 57544) | $78,750 |
Historical data: truck crashes in Lyman 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 | 7 | — | 0.4 |
| 2000s | 8 | +19% | 0.2 |
| 2010s | 9 | +18% | 0.3 |
| 2020s | 14 | +47% | 0.4 |
From the 1990s to the 2020s, yearly reported truck crashes went from 7 to 14. Some of the change may reflect how crashes were reported. Fatal crashes involving a large truck averaged 0.5 a year in 2016–19 and 0.4 a year in 2020–24.
Nearby places
Questions fleets ask about Kennebec
How common are truck crashes in Kennebec?
139 truck crashes have been reported in Lyman County since 2015, with 14 deaths and 25 injuries.
When do most truck crashes happen in Kennebec?
The worst month is January: 20.1% of truck crashes in Lyman County happen then.
How many garbage truck accidents happen in Kennebec?
0 crashes involving garbage or refuse trucks have been reported in Lyman County since 2015, 0.0% of all truck crashes.
How do truck crashes in Kennebec compare with South Dakota?
Per 100,000 residents, Lyman County has 320.1 truck crashes a year; South Dakota has 42.0.
How can I plan a safer truck route in Kennebec?
The free Route Planner takes your stops and returns a route risk score, safer alternatives and low-bridge warnings.
2026 is a partial year. Updated October 2026.