Thayer, IL truck route planning & crash data
Plan safer truck routes in Thayer: commercial truck and garbage truck crashes in Thayer and Sangamon County, dangerous roads, seasonality and route safety data for fleets. Patterns use Sangamon County numbers.
Where fatal truck crashes happened
Risk scorecard
Key findings
Snapshot
Crashes by month
Garbage trucks vs all trucks
0.0 deaths per 100 garbage-truck crashes vs 2.4 for all trucks.
Deadliest roads
How Sangamon County compares with Illinois
Sangamon County against Illinois and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Sangamon County stands out
Full comparison
| Measure (2015–2025) | Sangamon County | Illinois | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 53.3 | 56.0 | 49.7 | same |
| Deaths per 100 crashes | 2.4 | 2.6 | 3.4 | 8% below the state |
| Injuries per crash | 0.49 | 0.50 | 0.49 | same |
| Garbage-truck share | 2.5% | 1.4% | 2.3% | 1.8× the state |
| On snow, slush or ice | 14.6% | 9.0% | 6.2% | 1.6× the state |
| Morning rush (6–10 am) | 25.0% | 24.3% | 23.7% | same |
| In rain, sleet or snow | 20.0% | 17.9% | 13.8% | 1.1× the state |
| Winter months (Nov–Mar) | 45.5% | 42.0% | 41.9% | 1.1× the state |
| After dark | 24.4% | 24.1% | 24.8% | same |
Sangamon County sits below Illinois on deaths per 100 crashes. It stands out for higher garbage-truck share, on snow, slush or ice and in rain, sleet or snow.
The headline for Sangamon County: 1 in 41 garbage-truck share of crashes is 2.5%, against 1.4% for Illinois.
Overview
Sangamon County has recorded 1,219 truck crashes since 2015, with 598 people injured and 31 killed.
That averages about one truck crash every 4 days in fully reported years.
Only 0 truck crashes were reported in Thayer since 2015; patterns below come from Sangamon County as a whole.
When crashes happen
February has the most truck crashes, 12.0% of the yearly total, while April has the fewest (5.8%).
November through March accounts for 45.5% of truck crashes here, compared with 42.0% in Illinois.
By time of day, 7–8 am stands out with 7.4% of truck crashes.
14.6% of truck crashes here happened on snow, slush or ice, against 9.0% across Illinois.
Where crashes happen
I-55 leads within 10 miles of Thayer with 9 fatal crashes involving a large truck since 2015. It is followed by SR-4 (2), SR-104 (1) and Studebaker Ave (1).
Garbage & waste trucks
28 crashes involved a garbage or refuse truck, a 2.3% share (Illinois: 1.4%).
Garbage-truck crashes peak in October (25% of them).
Deaths per 100 garbage-truck crashes: 0.0, vs 2.4 for all truck crashes.
Route planning tips for Thayer fleets
- Build extra time into February routes: it has the most truck crashes here.
- Look at alternatives to I-55 at busy times: it leads this area in fatal truck crashes.
- Garbage-truck crashes here peak in October; review collection routes for that month.
- 14.6% of truck crashes were on snow, slush or ice, above Illinois; plan winter equipment checks before the season.
- Check your own stops for crash hotspots and low bridges with the free Route Planner.
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 Sangamon County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| I-55 | 9 |
| SR-4 | 2 |
| SR-104 | 1 |
| Studebaker Ave | 1 |
| Ts-Macoupin County Line Rd | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Sangamon County) |
|---|---|
| I-55 | 454 |
| I-72 | 121 |
| Il-104 | 13 |
| Il-97 | 12 |
| Il-29 | 12 |
| I-055 | 11 |
| I-55 (Sb) | 10 |
| Veterans | 9 |
Thayer at a glance
| Population | 616 |
| Land area | 0.6 sq mi |
| Density | 1,010 per sq mi |
| Median household income (ZIP 62689) | $61,500 |
| Median home value (ZIP 62689) | $92,090 |
Waste facilities and haulers nearby
Historical data: truck crashes in Sangamon 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 | 37 | — | 1.8 |
| 2000s | 64 | +74% | 1.1 |
| 2010s | 92 | +44% | 1.9 |
| 2020s | 108 | +17% | 4.0 |
From the 1990s to the 2020s, yearly reported truck crashes went from 37 to 108. Some of the change may reflect how crashes were reported. NHTSA counts 2.0 fatal large-truck crashes a year in 2016–19 and 4.0 a year in 2020–24.
Nearby places
Questions fleets ask about Thayer
How many truck accidents are there in Thayer?
1,219 truck crashes have been reported in Sangamon County since 2015, with 31 deaths and 598 injuries.
What is the most dangerous road for trucks in Thayer?
NHTSA data shows I-55 with 9 fatal large-truck crashes within 10 miles of Thayer since 2015, the highest of any road.
What is the worst month for truck crashes in Thayer?
The worst month is February: 12.0% of truck crashes in Sangamon County happen then.
Are garbage truck crashes common in Thayer?
28 crashes involving garbage or refuse trucks have been reported in Sangamon County since 2015, 2.3% of all truck crashes.
What is the truck crash rate in Thayer compared with Illinois?
The yearly rate is 53.3 truck crashes per 100,000 residents in Sangamon County, vs 56.0 for Illinois.
How can I plan a safer truck route in Thayer?
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.