Castle Rock, WI truck route planning & crash data
Plan safer truck routes in Castle Rock: commercial truck and garbage truck crashes in Castle Rock and Grant County, dangerous roads, seasonality and route safety data for fleets. Patterns use Grant County numbers.
Where fatal truck crashes happened
Risk scorecard
Key findings
Snapshot
Crashes by month
Garbage trucks vs all trucks
8 of 304 truck crashes since 2015.
Deadliest roads
How Grant County compares with Wisconsin
Grant County against Wisconsin and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Grant County stands out
Full comparison
| Measure (2015–2025) | Grant County | Wisconsin | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 50.4 | 42.6 | 49.7 | 1.2× the state |
| Deaths per 100 crashes | 5.9 | 3.4 | 3.4 | 1.7× the state |
| Injuries per crash | 0.64 | 0.46 | 0.49 | 1.4× the state |
| Garbage-truck share | 2.4% | 2.7% | 2.3% | 12% below the state |
| On snow, slush or ice | 12.4% | 13.4% | 6.2% | 7% below the state |
| Morning rush (6–10 am) | 25.9% | 26.9% | 23.7% | same |
| In rain, sleet or snow | 16.2% | 16.5% | 13.8% | same |
| Winter months (Nov–Mar) | 45.9% | 44.9% | 41.9% | same |
| After dark | 25.5% | 20.9% | 24.8% | 1.2× the state |
Grant County sits below Wisconsin on garbage-truck share and on snow, slush or ice. It stands out for higher crashes per 100k residents / yr, deaths per 100 crashes and injuries per crash.
Grant County at a glance: 5.9 people killed per 100 truck crashes (Wisconsin: 3.4).
Overview
Since 2015, 304 crashes involving commercial trucks have been reported in Grant County. They injured 195 people and killed 17.
Across the years with complete reporting, that is roughly one truck crash every 14 days.
With 1 truck crash reported in Castle Rock since 2015, this page uses Grant County numbers for its patterns and comparisons.
When crashes happen
The worst month is January with 11.8% of truck crashes; the quietest is August at 5.6%.
November through March accounts for 45.9% of truck crashes here, compared with 44.9% in Wisconsin.
By time of day, 11 am–12 pm stands out with 10.2% of truck crashes.
Road surface: 12.4% of truck crashes were on snow, slush or ice (Wisconsin: 13.4%).
Where crashes happen
Within this area, US-18 had the most fatal crashes involving a large truck since 2015 (2). After it: CR-P (1), CR-T (1) and US-61 (1).
Garbage & waste trucks
Garbage trucks account for 8 of the truck crashes here, or 2.6%, compared with 2.7% in Wisconsin.
Route planning tips for Castle Rock fleets
- Build extra time into January routes: it has the most truck crashes here.
- Check whether your routes use US-18, the road with the most fatal truck crashes in this area.
- 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 Grant County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| US-18 | 2 |
| CR-P | 1 |
| CR-T | 1 |
| US-61 | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Grant County) |
|---|---|
| Ush 061 | 73 |
| Ush 151 | 42 |
| Ush 018 | 32 |
| Sth 080 | 17 |
| Sth 133 | 8 |
| Sth 011 | 6 |
| Sth 081 | 6 |
| Sth 129 | 6 |
Castle Rock at a glance
| Population | 248 |
| Land area | 35.8 sq mi |
| Density | 7 per sq mi |
| Median household income (ZIP 53543) | $77,031 |
| Median home value (ZIP 53543) | $221,653 |
Waste facilities and haulers nearby
Historical data: truck crashes in Grant 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 | 22 | — | 1.5 |
| 2000s | 25 | +13% | 1.0 |
| 2010s | 23 | -9% | 1.2 |
| 2020s | 28 | +24% | 1.4 |
From the 1990s to the 2020s, yearly reported truck crashes went from 22 to 28. Some of the change may reflect how crashes were reported. Fatal large-truck crashes: 1.5 a year in 2016–19, 1.4 a year in 2020–24.
Nearby places
Questions fleets ask about Castle Rock
How common are truck crashes in Castle Rock?
304 truck crashes have been reported in Grant County since 2015, with 17 deaths and 195 injuries.
Which road has the most fatal truck crashes in Castle Rock?
Since 2015, US-18 has had the most fatal large-truck crashes within 10 miles of Castle Rock: 2.
What is the worst month for truck crashes in Castle Rock?
The worst month is January: 11.8% of truck crashes in Grant County happen then.
How many garbage truck crashes are there in Castle Rock?
8 crashes involving garbage or refuse trucks have been reported in Grant County since 2015, 2.6% of all truck crashes.
What is the truck crash rate in Castle Rock compared with Wisconsin?
The yearly rate is 50.4 truck crashes per 100,000 residents in Grant County, vs 42.6 for Wisconsin.
How can I plan a safer truck route in Castle Rock?
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.