Millboro, SD truck route planning & crash data
Plan safer truck routes in Millboro: commercial truck and garbage truck crashes in Millboro 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
No fatal large-truck crashes with a road name recorded here since 2015.
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 23.5% of truck crashes happen in October, more than any other month.
Overview
Since 2015, 34 crashes involving commercial trucks have been reported in Tripp County. They injured 10 people and killed 1.
Across the years with complete reporting, that is roughly one truck crash every 125 days.
With 0 truck crashes reported in Millboro since 2015, this page uses Tripp County numbers for its patterns and comparisons.
When crashes happen
The worst month is October with 23.5% of truck crashes; the quietest is February at 0.0%.
The five winter months (November to March) hold 40.6% of truck crashes, against 48.8% across South Dakota.
By time of day, 12–1 pm stands out with 11.8% of truck crashes.
Road surface: 18.8% 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 Millboro since 2015.
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 Millboro fleets
- Plan October schedules with more margin; it is the worst month for truck crashes in Tripp County.
- 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 Tripp 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 (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 |
Millboro at a glance
| Population | 24 |
| Land area | 34.9 sq mi |
| Density | 1 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. NHTSA counts 0.0 fatal large-truck crashes a year in 2016–19 and 0.6 a year in 2020–24.
Nearby places
Questions fleets ask about Millboro
How many truck crashes happen in Millboro?
34 truck crashes have been reported in Tripp County since 2015, with 1 deaths and 10 injuries.
Which month has the most truck crashes in Millboro?
October has the most truck crashes in Tripp County, 23.5% of the yearly total.
How many garbage truck crashes are there in Millboro?
Since 2015, Tripp County has reported 1 garbage-truck crash, or 2.9% of its truck crashes.
How does Millboro compare with South Dakota for truck crashes?
The yearly rate is 50.9 truck crashes per 100,000 residents in Tripp County, vs 42.0 for South Dakota.
How can I plan a safer truck route in Millboro?
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.