Superior, WY truck route planning & crash data
Plan safer truck routes in Superior: commercial truck and garbage truck crashes in Superior and Sweetwater County, dangerous roads, seasonality and route safety data for fleets. Patterns use Sweetwater County numbers.
Where fatal truck crashes happened
Risk scorecard
Key findings
Snapshot
Crashes by month
Garbage trucks vs all trucks
0 of 2,596 truck crashes since 2015.
Deadliest roads
How Sweetwater County compares with Wyoming
Sweetwater County against Wyoming and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Sweetwater County stands out
Full comparison
| Measure (2015–2025) | Sweetwater County | Wyoming | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 546.5 | 187.2 | 49.7 | 2.9× the state |
| Deaths per 100 crashes | 8.1 | 4.5 | 3.4 | 1.8× the state |
| Injuries per crash | 0.59 | 0.43 | 0.49 | 1.4× the state |
| Garbage-truck share | 0.0% | 0.4% | 2.3% | 100% below the state |
| On snow, slush or ice | 53.7% | 45.1% | 6.2% | 1.2× the state |
| Morning rush (6–10 am) | 23.1% | 23.4% | 23.7% | same |
| In rain, sleet or snow | 30.2% | 25.0% | 13.8% | 1.2× the state |
| Winter months (Nov–Mar) | 61.3% | 59.3% | 41.9% | same |
| After dark | 36.7% | 32.8% | 24.8% | 1.1× the state |
Sweetwater County has lower values than Wyoming for garbage-truck share. Where it is higher: crashes per 100k residents / yr, deaths per 100 crashes and injuries per crash.
The headline for Sweetwater County: 0 crashes involve a garbage truck (0 since 2015), vs 0.4% across Wyoming.
Overview
Police reported 2,596 crashes involving commercial trucks in Sweetwater County since 2015: 1,504 people were injured and 206 were killed.
Across the years with complete reporting, that is roughly one truck crash every 2 days.
With 165 truck crashes reported in Superior since 2015, this page uses Sweetwater County numbers for its patterns and comparisons.
When crashes happen
March has the most truck crashes, 14.6% of the yearly total, while May has the fewest (3.5%).
Winter months (Nov–Mar) carry 61.3% of truck crashes, vs 59.3% for Wyoming.
The busiest hour is 3–4 pm, with 8.4% of truck crashes.
53.7% of truck crashes here happened on snow, slush or ice, against 45.1% across Wyoming.
Where crashes happen
Fatal large-truck crashes within 10 miles of Superior since 2015 were spread across roads: I-80 (2).
Garbage & waste trucks
Since 2015, no garbage-truck crashes were reported for Sweetwater County.
Route planning tips for Superior fleets
- Plan March schedules with more margin; it is the worst month for truck crashes in Sweetwater County.
- 53.7% of truck crashes were on snow, slush or ice, above Wyoming; 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
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 Sweetwater County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| I-80 | 2 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Sweetwater County) |
|---|---|
| I-80 Mp 184.41 | 39 |
| I-80 Mp 72 | 12 |
| I-80 Mp 90.26 | 10 |
| I-80 Mp 142 | 9 |
| I-80 Mp 143 | 9 |
| I-80 Mp 156 | 8 |
| I-80 Mp 182.83 | 8 |
| I-80 Mp 85 | 8 |
Superior at a glance
| Population | 183 |
| Land area | 1.1 sq mi |
| Density | 164 per sq mi |
| Median household income (ZIP 82945) | $68,036 |
| Median home value (ZIP 82945) | $95,565 |
Waste facilities and haulers nearby
Historical data: truck crashes in Sweetwater 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 | 151 | — | 3.6 |
| 2000s | 220 | +46% | 4.4 |
| 2010s | 194 | -12% | 2.8 |
| 2020s | 245 | +27% | 5.2 |
From the 1990s to the 2020s, yearly reported truck crashes went from 151 to 245. Some of the change may reflect how crashes were reported. Fatal crashes involving a large truck averaged 4.2 a year in 2016–19 and 5.2 a year in 2020–24.
Nearby places
Questions fleets ask about Superior
How many truck accidents are there in Superior?
Sweetwater County has had 2,596 reported truck crashes since 2015, injuring 1,504 people and killing 206.
What is the worst month for truck crashes in Superior?
The worst month is March: 14.6% of truck crashes in Sweetwater County happen then.
How many garbage truck crashes are there in Superior?
Since 2015, Sweetwater County has reported 0 garbage-truck crashes, or 0.0% of its truck crashes.
How do truck crashes in Superior compare with Wyoming?
Sweetwater County records 546.5 truck crashes per 100,000 residents a year, against 187.2 across Wyoming.
What is the best way to plan truck routes in Superior?
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.