Merrimac, WI truck route planning & crash data
Plan safer truck routes in Merrimac: commercial truck and garbage truck crashes in Merrimac 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 |
Compared with Wisconsin, Sauk County is lower on injuries per crash. It runs above Wisconsin on crashes per 100k residents / yr, deaths per 100 crashes and on snow, slush or ice.
The headline for Sauk County: January 13.9% of truck crashes happen in January, more than any other month.
Overview
Police reported 467 crashes involving commercial trucks in Sauk County since 2015: 200 people were injured and 23 were killed.
In complete reporting years that works out to about one truck crash every 9 days.
Only 12 truck crashes were reported in Merrimac since 2015; patterns below come from Sauk County as a whole.
When crashes happen
The worst month is January with 13.9% of truck crashes; the quietest is April at 6.0%.
November through March accounts for 48.1% of truck crashes here, compared with 44.9% in Wisconsin.
More truck crashes happen at 8–9 am than at any other hour (8.2%).
15.4% of truck crashes here happened on snow, slush or ice, against 13.4% across Wisconsin.
Where crashes happen
The deadliest road for trucks within 10 miles of Merrimac is SR-33, with 2 fatal large-truck crashes since 2015. It is followed by CR-CS (1), I-39 (1) and SR-60 (1).
Garbage & waste trucks
12 crashes involved a garbage or refuse truck, a 2.6% share (Wisconsin: 2.7%).
Route planning tips for Merrimac fleets
- Review driver schedules for January, the month with the most truck crashes.
- Check whether your routes use SR-33, the road with the most fatal truck crashes in this area.
- 29.2% of truck crashes happen between 6 and 10 am, above Wisconsin; consider earlier or later starts where possible.
- Icy and snowy roads show up in 15.4% of truck crashes here, more than Wisconsin; schedule winter checks early.
- 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) |
|---|---|
| SR-33 | 2 |
| CR-CS | 1 |
| I-39 | 1 |
| SR-60 | 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 |
Merrimac at a glance
| Population | 526 |
| Land area | 0.8 sq mi |
| Density | 639 per sq mi |
| Median household income (ZIP 53561) | $91,103 |
| Median home value (ZIP 53561) | $428,463 |
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 |
Reported truck crashes averaged 38 a year in the 1990s and 42 a year in the 2020s. Reporting practices changed over time, so part of any change can come from reporting. NHTSA counts 1.0 fatal large-truck crashes a year in 2016–19 and 2.0 a year in 2020–24.
Nearby places
Questions fleets ask about Merrimac
How many truck crashes happen in Merrimac?
Sauk County has had 467 reported truck crashes since 2015, injuring 200 people and killing 23.
Which road has the most fatal truck crashes in Merrimac?
SR-33 had 2 fatal crashes involving a large truck within 10 miles of Merrimac since 2015, more than any other road.
Which month has the most truck crashes in Merrimac?
January has the most truck crashes in Sauk County, 13.9% of the yearly total.
How many garbage truck accidents happen in Merrimac?
12 crashes involving garbage or refuse trucks have been reported in Sauk County since 2015, 2.6% of all truck crashes.
How do truck crashes in Merrimac compare with Wisconsin?
The yearly rate is 60.3 truck crashes per 100,000 residents in Sauk County, vs 42.6 for Wisconsin.
How do I plan a garbage truck route in Merrimac?
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.