Porter, WI truck route planning & crash data
Plan safer truck routes in Porter: commercial truck and garbage truck crashes in Porter and Rock County, dangerous roads, seasonality and route safety data for fleets. Patterns use Rock County numbers.
Where fatal truck crashes happened
Risk scorecard
Key findings
Snapshot
Crashes by month
Garbage trucks vs all trucks
13 of 1,235 truck crashes since 2015.
Deadliest roads
How Rock County compares with Wisconsin
Rock County against Wisconsin and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Rock County stands out
Full comparison
| Measure (2015–2025) | Rock County | Wisconsin | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 64.5 | 42.6 | 49.7 | 1.5× the state |
| Deaths per 100 crashes | 3.2 | 3.4 | 3.4 | same |
| Injuries per crash | 0.58 | 0.46 | 0.49 | 1.3× the state |
| Garbage-truck share | 1.0% | 2.7% | 2.3% | 63% below the state |
| On snow, slush or ice | 16.3% | 13.4% | 6.2% | 1.2× the state |
| Morning rush (6–10 am) | 20.8% | 26.9% | 23.7% | 23% below the state |
| In rain, sleet or snow | 22.7% | 16.5% | 13.8% | 1.4× the state |
| Winter months (Nov–Mar) | 50.6% | 44.9% | 41.9% | 1.1× the state |
| After dark | 28.4% | 20.9% | 24.8% | 1.4× the state |
Compared with Wisconsin, Rock County is lower on garbage-truck share and morning rush (6–10 am). Where it is higher: crashes per 100k residents / yr, injuries per crash and on snow, slush or ice.
Rock County at a glance: January the month with the most truck crashes: 16.9% of the year's total.
Overview
Rock County has recorded 1,235 truck crashes since 2015, with 702 people injured and 38 killed.
In complete reporting years that works out to about one truck crash every 3 days.
With 9 truck crashes reported in Porter since 2015, this page uses Rock County numbers for its patterns and comparisons.
When crashes happen
January has the most truck crashes, 16.9% of the yearly total, while April has the fewest (5.3%).
November through March accounts for 50.6% of truck crashes here, compared with 44.9% in Wisconsin.
More truck crashes happen at 12–1 pm than at any other hour (11.4%).
16.3% of truck crashes here happened on snow, slush or ice, against 13.4% across Wisconsin.
Where crashes happen
Within this area, I-39 had the most fatal crashes involving a large truck since 2015 (3). It is followed by SR-11 (2), CR-B (1) and N River Rd (1).
Garbage & waste trucks
13 crashes involved a garbage or refuse truck, a 1.1% share (Wisconsin: 2.7%).
Route planning tips for Porter fleets
- Review driver schedules for January, the month with the most truck crashes.
- Look at alternatives to I-39 at busy times: it leads this area in fatal truck crashes.
- 16.3% of truck crashes were on snow, slush or ice, above Wisconsin; plan winter equipment checks before the season.
- Check your own stops for crash hotspots and low bridges with the free Route Planner.
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 Rock County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| I-39 | 3 |
| SR-11 | 2 |
| CR-B | 1 |
| N River Rd | 1 |
| US-14 | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Rock County) |
|---|---|
| I-039 | 549 |
| I-043 | 53 |
| Ush 014 | 46 |
| Sth 011 | 39 |
| SR-039 | 36 |
| Sth 081 | 35 |
| Ush 051 | 23 |
| Sth 059 | 20 |
Porter at a glance
| Population | 977 |
| Land area | 35.9 sq mi |
| Density | 27 per sq mi |
| Median household income (ZIP 53534) | $89,045 |
| Median home value (ZIP 53534) | $295,048 |
Waste facilities and haulers nearby
Historical data: truck crashes in Rock 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 | 82 | — | 2.4 |
| 2000s | 111 | +35% | 2.8 |
| 2010s | 99 | -11% | 3.0 |
| 2020s | 103 | +5% | 3.0 |
From the 1990s to the 2020s, yearly reported truck crashes went from 82 to 103. Some of the change may reflect how crashes were reported. Fatal crashes involving a large truck averaged 3.2 a year in 2016–19 and 3.0 a year in 2020–24.
Nearby places
Questions fleets ask about Porter
How common are truck crashes in Porter?
1,235 truck crashes have been reported in Rock County since 2015, with 38 deaths and 702 injuries.
What is the most dangerous road for trucks in Porter?
NHTSA data shows I-39 with 3 fatal large-truck crashes within 10 miles of Porter since 2015, the highest of any road.
What is the worst month for truck crashes in Porter?
January has the most truck crashes in Rock County, 16.9% of the yearly total.
Are garbage truck crashes common in Porter?
Garbage trucks were involved in 13 reported crashes in Rock County since 2015 (1.1% of truck crashes).
How do truck crashes in Porter compare with Wisconsin?
Rock County records 64.5 truck crashes per 100,000 residents a year, against 42.6 across Wisconsin.
How do I plan a garbage truck route in Porter?
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.