ZIP 48191 (Willis, MI) truck route planning & crash data
Plan safer truck routes around ZIP 48191: commercial truck and garbage truck crashes here and in Washtenaw County, dangerous roads, seasonality and route safety data for fleets.
Where fatal truck crashes happened
Risk scorecard
Key findings
Snapshot
Crashes by month
Garbage trucks vs all trucks
2.9 deaths per 100 garbage-truck crashes vs 2.0 for all trucks.
Deadliest roads
How Washtenaw County compares with Michigan
Washtenaw County against Michigan and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Washtenaw County stands out
Full comparison
| Measure (2015–2025) | Washtenaw County | Michigan | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 57.4 | 52.4 | 49.7 | 1.1× the state |
| Deaths per 100 crashes | 2.0 | 2.1 | 3.4 | same |
| Injuries per crash | 0.29 | 0.30 | 0.49 | same |
| Garbage-truck share | 2.9% | 3.2% | 2.3% | 11% below the state |
| On snow, slush or ice | 13.3% | 17.7% | 6.2% | 25% below the state |
| Morning rush (6–10 am) | 25.6% | 25.5% | 23.7% | same |
| In rain, sleet or snow | 22.7% | 21.9% | 13.8% | same |
| Winter months (Nov–Mar) | 40.6% | 44.4% | 41.9% | 8% below the state |
| After dark | 21.4% | 20.7% | 24.8% | same |
Compared with Michigan, Washtenaw County is lower on garbage-truck share, on snow, slush or ice and winter months (nov–mar). Where it is higher: crashes per 100k residents / yr.
ZIP 48191 at a glance: I-94 6 fatal truck crashes since 2015, more than any other road within 10 miles of ZIP 48191.
Overview
Washtenaw County has recorded 2,523 truck crashes since 2015, with 755 people injured and 49 killed.
Across the years with complete reporting, that is roughly one truck crash every 2 days.
When crashes happen
September has the most truck crashes, 9.9% of the yearly total, while March has the fewest (6.8%).
Winter months (Nov–Mar) carry 40.6% of truck crashes, vs 44.4% for Michigan.
The busiest hour is 8–9 am, with 8.7% of truck crashes.
Road surface: 13.3% of truck crashes were on snow, slush or ice (Michigan: 17.7%).
Where crashes happen
I-94 leads within 10 miles of ZIP 48191 with 6 fatal crashes involving a large truck since 2015. It is followed by US-23 (4), CR-BUTLER Rd (1) and CR-ELLSWORTH Rd (1).
Garbage & waste trucks
Garbage and refuse trucks were involved in 75 crashes, 3.0% of the total, against 3.2% across Michigan.
Garbage-truck crashes peak in March (16% of them).
Per 100 crashes, garbage trucks recorded 2.9 deaths compared with 2.0 for all trucks.
Route planning tips for ZIP 48191 fleets
- Plan September schedules with more margin; it is the worst month for truck crashes in Washtenaw County.
- Check whether your routes use I-94, the road with the most fatal truck crashes in this area.
- Garbage-truck crashes here peak in March; review collection routes for that month.
- Use the free Route Planner to score your route and spot low bridges before drivers head out.
About the data
This report uses the FMCSA crash file (reported crashes of trucks over 10,000 lb) and NHTSA FARS (fatal crashes). It reports the numbers without guessing at reasons.
Truck crashes by year: all trucks vs garbage trucks
Seasonality: when trucks crash in Washtenaw County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| I-94 | 6 |
| US-23 | 4 |
| CR-BUTLER Rd | 1 |
| CR-ELLSWORTH Rd | 1 |
| CR-I-94 Service Dr | 1 |
| CR-OAKVILLE Waltz Rd | 1 |
| CR-TUTTLE Hill Rd | 1 |
| CR-W Ecorse Rd | 1 |
| CR-WILLIS Rd | 1 |
| Oakville Waltz Rd | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Washtenaw County) |
|---|---|
| I-94 | 301 |
| US-23 | 242 |
| N Us 23 | 133 |
| Michigan | 133 |
| S Us 23 | 125 |
| Jackson | 33 |
| Main | 28 |
| State | 27 |
ZIP 48191 at a glance
| Population | 4,403 |
| Density | 106 per sq mi |
| Median household income | $102,833 |
| Median home value | $266,124 |
| Home ownership | 91% |
Waste facilities and haulers nearby
Historical data: truck crashes in Washtenaw 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 | 132 | — | 4.2 |
| 2000s | 166 | +26% | 4.0 |
| 2010s | 162 | -2% | 3.1 |
| 2020s | 214 | +32% | 2.8 |
In the 1990s about 132 truck crashes a year were reported; in the 2020s, about 214. Reporting coverage also changed between these periods. NHTSA counts 3.8 fatal large-truck crashes a year in 2016–19 and 2.8 a year in 2020–24.
Nearby ZIP codes
Questions fleets ask about ZIP 48191
How common are truck crashes in ZIP 48191?
Since 2015, 2,523 crashes involving commercial trucks were reported in Washtenaw County (755 injured, 49 killed).
What is the most dangerous road for trucks in ZIP 48191?
NHTSA data shows I-94 with 6 fatal large-truck crashes within 10 miles of ZIP 48191 since 2015, the highest of any road.
What is the worst month for truck crashes in ZIP 48191?
The worst month is September: 9.9% of truck crashes in Washtenaw County happen then.
Are garbage truck crashes common in ZIP 48191?
Since 2015, Washtenaw County has reported 75 garbage-truck crashes, or 3.0% of its truck crashes.
What is the truck crash rate in ZIP 48191 compared with Michigan?
The yearly rate is 57.4 truck crashes per 100,000 residents in Washtenaw County, vs 52.4 for Michigan.
How can I plan a safer truck route in ZIP 48191?
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.