ZIP 48189 (Whitmore Lake, MI) truck route planning & crash data
Plan safer truck routes around ZIP 48189: 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 |
Washtenaw County has lower values than Michigan for garbage-truck share, on snow, slush or ice and winter months (nov–mar). It runs above Michigan on crashes per 100k residents / yr.
What stands out in ZIP 48189: US-23 5 fatal truck crashes since 2015, more than any other road within 10 miles of ZIP 48189.
Overview
Police reported 2,523 crashes involving commercial trucks in Washtenaw County since 2015: 755 people were injured and 49 were killed.
In complete reporting years that works out to about 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%).
The five winter months (November to March) hold 40.6% of truck crashes, against 44.4% across Michigan.
More truck crashes happen at 8–9 am than at any other hour (8.7%).
Snow, slush or ice was on the road in 13.3% of truck crashes, compared with 17.7% in Michigan.
Where crashes happen
US-23 leads within 10 miles of ZIP 48189 with 5 fatal crashes involving a large truck since 2015. After it: I-94 (4), SR-14 (2) and CR-JOY Rd (1).
Garbage & waste trucks
75 crashes involved a garbage or refuse truck, a 3.0% share (Michigan: 3.2%).
Their busiest month is March, with 16% of garbage-truck crashes.
They recorded 2.9 deaths per 100 crashes, against 2.0 for all trucks.
Route planning tips for ZIP 48189 fleets
- Review driver schedules for September, the month with the most truck crashes.
- Check whether your routes use US-23, the road with the most fatal truck crashes in this area.
- For residential and commercial waste routes, look again at March schedules: garbage-truck crashes peak then.
- Paste your stops into the free Route Planner to see the risk score, safer alternatives and low bridges.
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 Washtenaw County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| US-23 | 5 |
| I-94 | 4 |
| SR-14 | 2 |
| CR-JOY Rd | 1 |
| CR-MILFORD Rd | 1 |
| CR-PONTIAC Trail | 1 |
| CR-TUTHILL Rd | 1 |
| CR-W Grand River Ave | 1 |
| Currie Rd | 1 |
| I-96 | 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 48189 at a glance
| Population | 13,893 |
| Density | 157 per sq mi |
| Median household income | $87,145 |
| Median home value | $315,278 |
| Home ownership | 79% |
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. Fatal large-truck crashes: 3.8 a year in 2016–19, 2.8 a year in 2020–24.
Nearby ZIP codes
Questions fleets ask about ZIP 48189
How common are truck crashes in ZIP 48189?
Since 2015, 2,523 crashes involving commercial trucks were reported in Washtenaw County (755 injured, 49 killed).
Where do fatal truck crashes happen most in ZIP 48189?
NHTSA data shows US-23 with 5 fatal large-truck crashes within 10 miles of ZIP 48189 since 2015, the highest of any road.
Which month has the most truck crashes in ZIP 48189?
The worst month is September: 9.9% of truck crashes in Washtenaw County happen then.
Are garbage truck crashes common in ZIP 48189?
Garbage trucks were involved in 75 reported crashes in Washtenaw County since 2015 (3.0% of truck crashes).
How do truck crashes in ZIP 48189 compare with Michigan?
Washtenaw County records 57.4 truck crashes per 100,000 residents a year, against 52.4 across Michigan.
What is the best way to plan truck routes in ZIP 48189?
Use the free Route Planner: enter your stops to get a risk score, safer alternatives and the low bridges on your route.
2026 is a partial year. Updated October 2026.