Sussex, WI truck route planning & crash data
Plan safer truck routes in Sussex: commercial truck and garbage truck crashes in Sussex and Waukesha County, dangerous roads, seasonality and route safety data for fleets. Patterns use Waukesha County numbers.
Where fatal truck crashes happened
Risk scorecard
Key findings
Snapshot
Crashes by month
Garbage trucks vs all trucks
1.9 deaths per 100 garbage-truck crashes vs 1.5 for all trucks.
Deadliest roads
How Waukesha County compares with Wisconsin
Waukesha County against Wisconsin and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Waukesha County stands out
Full comparison
| Measure (2015–2025) | Waukesha County | Wisconsin | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 31.5 | 42.6 | 49.7 | 26% below the state |
| Deaths per 100 crashes | 1.5 | 3.4 | 3.4 | 56% below the state |
| Injuries per crash | 0.41 | 0.46 | 0.49 | 11% below the state |
| Garbage-truck share | 3.7% | 2.7% | 2.3% | 1.4× the state |
| On snow, slush or ice | 7.1% | 13.4% | 6.2% | 47% below the state |
| Morning rush (6–10 am) | 30.0% | 26.9% | 23.7% | 1.1× the state |
| In rain, sleet or snow | 11.8% | 16.5% | 13.8% | 29% below the state |
| Winter months (Nov–Mar) | 40.2% | 44.9% | 41.9% | 11% below the state |
| After dark | 15.2% | 20.9% | 24.8% | 27% below the state |
Waukesha County sits below Wisconsin on crashes per 100k residents / yr, deaths per 100 crashes and injuries per crash. Where it is higher: garbage-truck share and morning rush (6–10 am).
Sussex at a glance: SR-175 deadliest road: 2 fatal truck crashes within 10 miles of Sussex since 2015.
Overview
Police reported 1,556 crashes involving commercial trucks in Waukesha County since 2015: 635 people were injured and 25 were killed.
That averages about one truck crash every 3 days in fully reported years.
Sussex had 25 reported truck crashes since 2015, too few for reliable patterns, so the charts and findings on this page use Waukesha County numbers.
When crashes happen
Truck crashes peak in September (10.3% of the year) and are lowest in March (5.2%).
Winter months (Nov–Mar) carry 40.2% of truck crashes, vs 44.9% for Wisconsin.
The busiest hour is 7–8 am, with 9.8% of truck crashes.
Road surface: 7.1% of truck crashes were on snow, slush or ice (Wisconsin: 13.4%).
Where crashes happen
Within this area, SR-175 had the most fatal crashes involving a large truck since 2015 (2). Next come CR-JJ (1), CR-K (1) and CR-M / Watertown Rd (1).
Garbage & waste trucks
Garbage trucks account for 58 of the truck crashes here, or 3.7%, compared with 2.7% in Wisconsin.
Their busiest month is May, with 12% of garbage-truck crashes.
Deaths per 100 garbage-truck crashes: 1.9, vs 1.5 for all truck crashes.
Route planning tips for Sussex fleets
- Review driver schedules for September, the month with the most truck crashes.
- Check whether your routes use SR-175, the road with the most fatal truck crashes in this area.
- Waste haulers: May is the peak month for garbage-truck crashes in Waukesha County.
- The morning rush (6–10 am) holds 30.0% of truck crashes here, more than Wisconsin; adjust start times where you can.
- 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 Waukesha County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| SR-175 | 2 |
| CR-JJ | 1 |
| CR-K | 1 |
| CR-M / Watertown Rd | 1 |
| CR-Q | 1 |
| CR-SR | 1 |
| Calhoun Rd | 1 |
| I-94 | 1 |
| Lisbon Rd N | 1 |
| SR-190 | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Waukesha County) |
|---|---|
| I-094 | 273 |
| I-041 | 73 |
| Cth F | 67 |
| I-043 | 56 |
| Cth O | 47 |
| Sth 164 | 40 |
| Sth 059 | 36 |
| Ush 018 | 34 |
Sussex at a glance
| Population | 12,607 |
| Land area | 8.4 sq mi |
| Density | 1,492 per sq mi |
| Median household income (ZIP 53089) | $120,875 |
| Median home value (ZIP 53089) | $424,153 |
Waste facilities and haulers nearby
Historical data: truck crashes in Waukesha 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 | 149 | — | 3.0 |
| 2000s | 170 | +14% | 2.4 |
| 2010s | 132 | -22% | 1.8 |
| 2020s | 122 | -8% | 2.4 |
In the 1990s about 149 truck crashes a year were reported; in the 2020s, about 122. Reporting coverage also changed between these periods. Fatal large-truck crashes: 1.8 a year in 2016–19, 2.4 a year in 2020–24.
Nearby places
Questions fleets ask about Sussex
How many truck accidents are there in Sussex?
1,556 truck crashes have been reported in Waukesha County since 2015, with 25 deaths and 635 injuries.
Which road has the most fatal truck crashes in Sussex?
Since 2015, SR-175 has had the most fatal large-truck crashes within 10 miles of Sussex: 2.
Which month has the most truck crashes in Sussex?
The worst month is September: 10.3% of truck crashes in Waukesha County happen then.
How many garbage truck crashes are there in Sussex?
Since 2015, Waukesha County has reported 58 garbage-truck crashes, or 3.7% of its truck crashes.
How do truck crashes in Sussex compare with Wisconsin?
Per 100,000 residents, Waukesha County has 31.5 truck crashes a year; Wisconsin has 42.6.
How do I plan a garbage truck route in Sussex?
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.