Millbrook Colony, SD truck route planning & crash data
Plan safer truck routes in Millbrook Colony: commercial truck and garbage truck crashes in Millbrook Colony and Hanson County, dangerous roads, seasonality and route safety data for fleets. Patterns use Hanson County numbers.
Where fatal truck crashes happened
Risk scorecard
Key findings
Snapshot
Crashes by month
Garbage trucks vs all trucks
1 of 76 truck crashes since 2015.
Deadliest roads
How Hanson County compares with South Dakota
Hanson County against South Dakota and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Hanson County stands out
Full comparison
| Measure (2015–2025) | Hanson County | South Dakota | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 196.1 | 42.0 | 49.7 | 4.7× the state |
| Deaths per 100 crashes | 5.3 | 5.2 | 3.4 | same |
| Injuries per crash | 0.08 | 0.13 | 0.49 | 38% below the state |
| Garbage-truck share | 1.3% | 1.6% | 2.3% | 17% below the state |
| On snow, slush or ice | 41.3% | 28.6% | 6.2% | 1.4× the state |
| Morning rush (6–10 am) | 24.0% | 22.2% | 23.7% | 1.1× the state |
| In rain, sleet or snow | 17.3% | 17.5% | 13.8% | same |
| Winter months (Nov–Mar) | 57.3% | 48.8% | 41.9% | 1.2× the state |
| After dark | 32.0% | 22.8% | 24.8% | 1.4× the state |
Hanson County sits below South Dakota on injuries per crash and garbage-truck share. It runs above South Dakota on crashes per 100k residents / yr, on snow, slush or ice and morning rush (6–10 am).
What stands out in Hanson County: January 15.8% of truck crashes happen in January, more than any other month.
Overview
Hanson County has recorded 76 truck crashes since 2015, with 6 people injured and 4 killed.
Across the years with complete reporting, that is roughly one truck crash every 54 days.
With 0 truck crashes reported in Millbrook Colony since 2015, this page uses Hanson County numbers for its patterns and comparisons.
When crashes happen
January has the most truck crashes, 15.8% of the yearly total, while July has the fewest (3.9%).
The five winter months (November to March) hold 57.3% of truck crashes, against 48.8% across South Dakota.
By time of day, 3–4 pm stands out with 11.8% of truck crashes.
41.3% of truck crashes here happened on snow, slush or ice, against 28.6% across South Dakota.
Where crashes happen
The deadliest road for trucks within 10 miles of Millbrook Colony is I-90, with 3 fatal large-truck crashes since 2015. It is followed by SR-37 (2) and CR-247TH St (1).
Garbage & waste trucks
1 crash involved a garbage or refuse truck, a 1.3% share (South Dakota: 1.6%).
Route planning tips for Millbrook Colony fleets
- Build extra time into January routes: it has the most truck crashes here.
- Where you can, review stops along I-90; it has the most fatal large-truck crashes nearby.
- Morning starts matter: 24.0% of truck crashes fall between 6 and 10 am, higher than South Dakota.
- Icy and snowy roads show up in 41.3% of truck crashes here, more than South Dakota; schedule winter checks early.
- Use the free Route Planner to score your route and spot low bridges before drivers head out.
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 Hanson County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| I-90 | 3 |
| SR-37 | 2 |
| CR-247TH St | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Hanson County) |
|---|---|
| I-90 | 45 |
| Sd Hwy 38 | 8 |
| Sd Hwy 25 | 7 |
| Ave | 4 |
| Sd Hwy 42 | 4 |
| Sd Hwy 262 | 1 |
Millbrook Colony at a glance
| Land area | 0.2 sq mi |
| Median household income (ZIP 57311) | $103,839 |
| Median home value (ZIP 57311) | $178,824 |
Waste facilities and haulers nearby
Historical data: truck crashes in Hanson 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 | — | 0.2 |
| 2000s | 5 | +71% | 0.1 |
| 2010s | 7 | +42% | 0.6 |
| 2020s | 7 | +5% | 0.2 |
From the 1990s to the 2020s, yearly reported truck crashes went from 3 to 7. Some of the change may reflect how crashes were reported. Fatal large-truck crashes: 0.2 a year in 2016–19, 0.2 a year in 2020–24.
Nearby places
Questions fleets ask about Millbrook Colony
How many truck crashes happen in Millbrook Colony?
Hanson County has had 76 reported truck crashes since 2015, injuring 6 people and killing 4.
Where do fatal truck crashes happen most in Millbrook Colony?
Since 2015, I-90 has had the most fatal large-truck crashes within 10 miles of Millbrook Colony: 3.
What is the worst month for truck crashes in Millbrook Colony?
Truck crashes in Hanson County peak in January, with 15.8% of the year's crashes.
How many garbage truck crashes are there in Millbrook Colony?
Garbage trucks were involved in 1 reported crash in Hanson County since 2015 (1.3% of truck crashes).
How does Millbrook Colony compare with South Dakota for truck crashes?
The yearly rate is 196.1 truck crashes per 100,000 residents in Hanson County, vs 42.0 for South Dakota.
How do I plan a garbage truck route in Millbrook Colony?
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.