Fairfield, WI truck route planning & crash data
Plan safer truck routes in Fairfield: commercial truck and garbage truck crashes in Fairfield and Sauk County, dangerous roads, seasonality and route safety data for fleets. Patterns use Sauk County numbers.
Where fatal truck crashes happened
Risk scorecard
Key findings
Snapshot
Crashes by month
Garbage trucks vs all trucks
12 of 467 truck crashes since 2015.
Deadliest roads
How Sauk County compares with Wisconsin
Sauk County against Wisconsin and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Sauk County stands out
Full comparison
| Measure (2015–2025) | Sauk County | Wisconsin | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 60.3 | 42.6 | 49.7 | 1.4× the state |
| Deaths per 100 crashes | 4.8 | 3.4 | 3.4 | 1.4× the state |
| Injuries per crash | 0.42 | 0.46 | 0.49 | 9% below the state |
| Garbage-truck share | 2.7% | 2.7% | 2.3% | same |
| On snow, slush or ice | 15.4% | 13.4% | 6.2% | 1.2× the state |
| Morning rush (6–10 am) | 29.2% | 26.9% | 23.7% | 1.1× the state |
| In rain, sleet or snow | 19.3% | 16.5% | 13.8% | 1.2× the state |
| Winter months (Nov–Mar) | 48.1% | 44.9% | 41.9% | 1.1× the state |
| After dark | 25.4% | 20.9% | 24.8% | 1.2× the state |
Sauk County has lower values than Wisconsin for injuries per crash. Where it is higher: crashes per 100k residents / yr, deaths per 100 crashes and on snow, slush or ice.
Sauk County at a glance: January worst month: 13.9% of truck crashes, vs 8.3% in an average month.
Overview
Since 2015, 467 crashes involving commercial trucks have been reported in Sauk County. They injured 200 people and killed 23.
Across the years with complete reporting, that is roughly one truck crash every 9 days.
Fairfield had 77 reported truck crashes since 2015, too few for reliable patterns, so the charts and findings on this page use Sauk County numbers.
When crashes happen
January has the most truck crashes, 13.9% of the yearly total, while April has the fewest (6.0%).
The five winter months (November to March) hold 48.1% of truck crashes, against 44.9% across Wisconsin.
More truck crashes happen at 8–9 am than at any other hour (8.2%).
Snow, slush or ice was on the road in 15.4% of truck crashes, compared with 13.4% in Wisconsin.
Where crashes happen
The deadliest road for trucks within 10 miles of Fairfield is I-90, with 8 fatal large-truck crashes since 2015. Next come SR-33 (4), I-39 (3) and SR-23 (2).
Garbage & waste trucks
12 crashes involved a garbage or refuse truck, a 2.6% share (Wisconsin: 2.7%).
Route planning tips for Fairfield fleets
- Build extra time into January routes: it has the most truck crashes here.
- Check whether your routes use I-90, the road with the most fatal truck crashes in this area.
- The morning rush (6–10 am) holds 29.2% of truck crashes here, more than Wisconsin; adjust start times where you can.
- 15.4% of truck crashes were on snow, slush or ice, above Wisconsin; plan winter equipment checks before the season.
- Paste your stops into the free Route Planner to see the risk score, safer alternatives and low bridges.
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 Sauk County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| I-90 | 8 |
| SR-33 | 4 |
| I-39 | 3 |
| SR-23 | 2 |
| CR-CX | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Sauk County) |
|---|---|
| I-090 | 200 |
| Sth 023 | 38 |
| Ush 012 | 21 |
| Sth 033 | 18 |
| Ush 014 | 13 |
| SR-090 | 10 |
| Sth 060 | 9 |
| Sth 136 | 7 |
Fairfield at a glance
| Population | 1,064 |
| Land area | 33.4 sq mi |
| Density | 32 per sq mi |
| Median household income (ZIP 53913) | $74,629 |
| Median home value (ZIP 53913) | $230,340 |
Waste facilities and haulers nearby
Historical data: truck crashes in Sauk 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 | 38 | — | 1.7 |
| 2000s | 50 | +33% | 1.4 |
| 2010s | 39 | -23% | 1.1 |
| 2020s | 42 | +8% | 2.0 |
From the 1990s to the 2020s, yearly reported truck crashes went from 38 to 42. Some of the change may reflect how crashes were reported. Fatal large-truck crashes: 1.0 a year in 2016–19, 2.0 a year in 2020–24.
Nearby places
Questions fleets ask about Fairfield
How many truck crashes happen in Fairfield?
Sauk County has had 467 reported truck crashes since 2015, injuring 200 people and killing 23.
What is the most dangerous road for trucks in Fairfield?
Since 2015, I-90 has had the most fatal large-truck crashes within 10 miles of Fairfield: 8.
When do most truck crashes happen in Fairfield?
Truck crashes in Sauk County peak in January, with 13.9% of the year's crashes.
How many garbage truck crashes are there in Fairfield?
Garbage trucks were involved in 12 reported crashes in Sauk County since 2015 (2.6% of truck crashes).
What is the truck crash rate in Fairfield compared with Wisconsin?
Per 100,000 residents, Sauk County has 60.3 truck crashes a year; Wisconsin has 42.6.
What is the best way to plan truck routes in Fairfield?
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.