Stewart, SD truck route planning & crash data
Plan safer truck routes in Stewart: commercial truck and garbage truck crashes in Stewart and Tripp County, dangerous roads, seasonality and route safety data for fleets. Patterns use Tripp County numbers.
Where fatal truck crashes happened
Risk scorecard
Key findings
Snapshot
Crashes by month
Garbage trucks vs all trucks
1 of 34 truck crashes since 2015.
Deadliest roads
How Tripp County compares with South Dakota
Tripp County against South Dakota and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Tripp County stands out
Full comparison
| Measure (2015–2025) | Tripp County | South Dakota | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 50.9 | 42.0 | 49.7 | 1.2× the state |
| Deaths per 100 crashes | 3.1 | 5.2 | 3.4 | 40% below the state |
| Injuries per crash | 0.28 | 0.13 | 0.49 | 2.2× the state |
| Garbage-truck share | 3.1% | 1.6% | 2.3% | 1.9× the state |
| On snow, slush or ice | 18.8% | 28.6% | 6.2% | 35% below the state |
| Morning rush (6–10 am) | 12.5% | 22.2% | 23.7% | 44% below the state |
| In rain, sleet or snow | 12.5% | 17.5% | 13.8% | 29% below the state |
| Winter months (Nov–Mar) | 40.6% | 48.8% | 41.9% | 17% below the state |
| After dark | 18.8% | 22.8% | 24.8% | 18% below the state |
Tripp County sits below South Dakota on deaths per 100 crashes, on snow, slush or ice and morning rush (6–10 am). It runs above South Dakota on crashes per 100k residents / yr, injuries per crash and garbage-truck share.
What stands out in Tripp County: October the month with the most truck crashes: 23.5% of the year's total.
Overview
Tripp County has recorded 34 truck crashes since 2015, with 10 people injured and 1 killed.
That averages about one truck crash every 125 days in fully reported years.
Stewart had 0 reported truck crashes since 2015, too few for reliable patterns, so the charts and findings on this page use Tripp County numbers.
When crashes happen
October has the most truck crashes, 23.5% of the yearly total, while February has the fewest (0.0%).
Winter months (Nov–Mar) carry 40.6% of truck crashes, vs 48.8% for South Dakota.
By time of day, 12–1 pm stands out with 11.8% of truck crashes.
18.8% of truck crashes here happened on snow, slush or ice, against 28.6% across South Dakota.
Where crashes happen
Roads with fatal crashes involving a large truck within 10 miles of Stewart since 2015: US-18 (1). No single road stands out.
Garbage & waste trucks
Garbage trucks account for 1 of the truck crashes here, or 2.9%, compared with 1.6% in South Dakota.
Route planning tips for Stewart fleets
- Review driver schedules for October, the month with the most truck crashes.
- 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 Tripp County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| US-18 | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Tripp County) |
|---|---|
| Sd Hwy 44 | 8 |
| US-18 | 7 |
| Sd Hwy 49 | 4 |
| Ave | 2 |
| US-183 | 2 |
| SR-18 | 1 |
| Sd Hwy 53 | 1 |
| Us 18 Ef | 1 |
Stewart at a glance
| Population | 81 |
| Land area | 36.0 sq mi |
| Density | 2 per sq mi |
| Median household income (ZIP 57528) | $61,292 |
Waste facilities and haulers nearby
Historical data: truck crashes in Tripp 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 | — | 0.0 |
| 2000s | 3 | -20% | 0.3 |
| 2010s | 2 | -12% | 0.1 |
| 2020s | 3 | +45% | 0.6 |
From the 1990s to the 2020s, yearly reported truck crashes went from 3 to 3. Some of the change may reflect how crashes were reported. Fatal crashes involving a large truck averaged 0.0 a year in 2016–19 and 0.6 a year in 2020–24.
Nearby places
Questions fleets ask about Stewart
How many truck crashes happen in Stewart?
34 truck crashes have been reported in Tripp County since 2015, with 1 deaths and 10 injuries.
What is the worst month for truck crashes in Stewart?
October has the most truck crashes in Tripp County, 23.5% of the yearly total.
Are garbage truck crashes common in Stewart?
1 crash involving garbage or refuse trucks have been reported in Tripp County since 2015, 2.9% of all truck crashes.
What is the truck crash rate in Stewart compared with South Dakota?
Per 100,000 residents, Tripp County has 50.9 truck crashes a year; South Dakota has 42.0.
How can I plan a safer truck route in Stewart?
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.