Imlay, SD truck route planning & crash data
Plan safer truck routes in Imlay: commercial truck and garbage truck crashes in Imlay 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. Where it is higher: garbage-truck share, in rain, sleet or snow and after dark.
Pennington County at a glance: 1 in 41 garbage-truck share of crashes is 2.4%, against 1.6% for South Dakota.
Overview
Since 2015, 399 crashes involving commercial trucks have been reported in Pennington County. They injured 38 people and killed 11.
Across the years with complete reporting, that is roughly one truck crash every 11 days.
With 0 truck crashes reported in Imlay since 2015, this page uses Pennington County numbers for its patterns and comparisons.
When crashes happen
Truck crashes peak in January (11.8% of the year) and are lowest in February (5.3%).
Winter months (Nov–Mar) carry 48.2% of truck crashes, vs 48.8% for 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
NHTSA lists no located fatal large-truck crashes within 10 miles of Imlay since 2015.
Garbage & waste trucks
Garbage trucks account for 10 of the truck crashes here, or 2.5%, compared with 1.6% in South Dakota.
Route planning tips for Imlay fleets
- Build extra time into January routes: it has the most truck crashes here.
- Check your own stops for crash hotspots and low bridges with the free Route Planner.
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 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 |
Imlay at a glance
| Population | 9 |
| Land area | 110.4 sq mi |
| Density | 0 per sq mi |
| Median household income (ZIP 57780) | $40,192 |
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. NHTSA counts 1.0 fatal large-truck crashes a year in 2016–19 and 1.0 a year in 2020–24.
Nearby places
Questions fleets ask about Imlay
How common are truck crashes in Imlay?
399 truck crashes have been reported in Pennington County since 2015, with 11 deaths and 38 injuries.
Which month has the most truck crashes in Imlay?
The worst month is January: 11.8% of truck crashes in Pennington County happen then.
Are garbage truck crashes common in Imlay?
Garbage trucks were involved in 10 reported crashes in Pennington County since 2015 (2.5% of truck crashes).
How do truck crashes in Imlay compare with South Dakota?
Pennington County records 29.1 truck crashes per 100,000 residents a year, against 42.0 across South Dakota.
What is the best way to plan truck routes in Imlay?
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.