Caledonia Township, Shiawassee County, MI truck route planning & crash data
Plan safer truck routes in Caledonia Township, Shiawassee County: commercial truck and garbage truck crashes in Caledonia Township, Shiawassee County and Shiawassee County, dangerous roads, seasonality and route safety data for fleets. Patterns use Shiawassee County numbers.
Where fatal truck crashes happened
Risk scorecard
Key findings
Snapshot
Crashes by month
Garbage trucks vs all trucks
13 of 473 truck crashes since 2015.
Deadliest roads
How Shiawassee County compares with Michigan
Shiawassee County against Michigan and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Shiawassee County stands out
Full comparison
| Measure (2015–2025) | Shiawassee County | Michigan | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 58.0 | 52.4 | 49.7 | 1.1× the state |
| Deaths per 100 crashes | 2.1 | 2.1 | 3.4 | same |
| Injuries per crash | 0.28 | 0.30 | 0.49 | same |
| Garbage-truck share | 2.8% | 3.2% | 2.3% | 14% below the state |
| On snow, slush or ice | 18.4% | 17.7% | 6.2% | same |
| Morning rush (6–10 am) | 27.2% | 25.5% | 23.7% | same |
| In rain, sleet or snow | 17.3% | 21.9% | 13.8% | 21% below the state |
| Winter months (Nov–Mar) | 41.7% | 44.4% | 41.9% | same |
| After dark | 24.6% | 20.7% | 24.8% | 1.2× the state |
Compared with Michigan, Shiawassee County is lower on garbage-truck share and in rain, sleet or snow. It stands out for higher crashes per 100k residents / yr and after dark.
What stands out in Caledonia Township, Shiawassee County: SR-21 deadliest road: 2 fatal truck crashes within 10 miles of Caledonia since 2015.
Overview
Shiawassee County has recorded 473 truck crashes since 2015, with 130 people injured and 10 killed.
That averages about one truck crash every 9 days in fully reported years.
Caledonia Township, Shiawassee County had 21 reported truck crashes since 2015, too few for reliable patterns, so the charts and findings on this page use Shiawassee County numbers.
When crashes happen
Truck crashes peak in January (10.8% of the year) and are lowest in April (4.9%).
November through March accounts for 41.7% of truck crashes here, compared with 44.4% in Michigan.
By time of day, 8–9 am stands out with 9.3% of truck crashes.
Road surface: 18.4% of truck crashes were on snow, slush or ice (Michigan: 17.7%).
Where crashes happen
SR-21 leads within 10 miles of Caledonia with 2 fatal crashes involving a large truck since 2015. After it: CR-HIBBARD Rd (1), SR-52 (1) and SR-71 (1).
Garbage & waste trucks
Garbage trucks account for 13 of the truck crashes here, or 2.7%, compared with 3.2% in Michigan.
Route planning tips for Caledonia Township, Shiawassee County fleets
- Build extra time into January routes: it has the most truck crashes here.
- Where you can, review stops along SR-21; it has the most fatal large-truck crashes nearby.
- 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 Shiawassee County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| SR-21 | 2 |
| CR-HIBBARD Rd | 1 |
| SR-52 | 1 |
| SR-71 | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Shiawassee County) |
|---|---|
| I-69 | 120 |
| Lansing | 16 |
| Main | 14 |
| Beard | 13 |
| Bath | 6 |
| Shiawassee | 5 |
| State | 5 |
| Bennington | 4 |
Caledonia Township, Shiawassee County at a glance
| Population | 4,322 |
| Land area | 31.1 sq mi |
| Density | 139 per sq mi |
| Median household income (ZIP 48817) | $55,194 |
| Median home value (ZIP 48817) | $174,770 |
Waste facilities and haulers nearby
Historical data: truck crashes in Shiawassee 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 | 32 | — | 1.6 |
| 2000s | 27 | -16% | 0.8 |
| 2010s | 25 | -8% | 0.5 |
| 2020s | 45 | +81% | 1.0 |
Reported truck crashes averaged 32 a year in the 1990s and 45 a year in the 2020s. Reporting practices changed over time, so part of any change can come from reporting. Fatal crashes involving a large truck averaged 0.8 a year in 2016–19 and 1.0 a year in 2020–24.
Nearby places
Questions fleets ask about Caledonia Township, Shiawassee County
How many truck accidents are there in Caledonia Township, Shiawassee County?
473 truck crashes have been reported in Shiawassee County since 2015, with 10 deaths and 130 injuries.
What is the most dangerous road for trucks in Caledonia Township, Shiawassee County?
NHTSA data shows SR-21 with 2 fatal large-truck crashes within 10 miles of Caledonia since 2015, the highest of any road.
When do most truck crashes happen in Caledonia Township, Shiawassee County?
The worst month is January: 10.8% of truck crashes in Shiawassee County happen then.
How many garbage truck accidents happen in Caledonia Township, Shiawassee County?
13 crashes involving garbage or refuse trucks have been reported in Shiawassee County since 2015, 2.7% of all truck crashes.
How do truck crashes in Caledonia Township, Shiawassee County compare with Michigan?
The yearly rate is 58.0 truck crashes per 100,000 residents in Shiawassee County, vs 52.4 for Michigan.
What is the best way to plan truck routes in Caledonia Township, Shiawassee County?
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.