Lyman, WY truck route planning & crash data
Plan safer truck routes in Lyman: commercial truck and garbage truck crashes, 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
1 of 226 truck crashes since 2015.
Deadliest roads
How Lyman compares with Wyoming
Lyman against Wyoming and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Lyman stands out
Full comparison
| Measure (2015–2025) | Lyman | Wyoming | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 896.2 | 187.2 | 49.7 | 4.8× the state |
| Deaths per 100 crashes | 1.4 | 4.5 | 3.4 | 69% below the state |
| Injuries per crash | 0.43 | 0.43 | 0.49 | same |
| Garbage-truck share | 0.5% | 0.4% | 2.3% | 1.1× the state |
| On snow, slush or ice | 62.0% | 45.1% | 6.2% | 1.4× the state |
| Morning rush (6–10 am) | 26.9% | 23.4% | 23.7% | 1.1× the state |
| In rain, sleet or snow | 26.4% | 25.0% | 13.8% | same |
| Winter months (Nov–Mar) | 70.4% | 59.3% | 41.9% | 1.2× the state |
| After dark | 35.6% | 32.8% | 24.8% | 1.1× the state |
Compared with Wyoming, Lyman is lower on deaths per 100 crashes. Where it is higher: crashes per 100k residents / yr, garbage-truck share and on snow, slush or ice.
What stands out in Lyman: December 20.8% of truck crashes happen in December, more than any other month.
Overview
Police reported 226 crashes involving commercial trucks in Lyman since 2015: 95 people were injured and 3 were killed.
That averages about one truck crash every 19 days in fully reported years.
When crashes happen
December has the most truck crashes, 20.8% of the yearly total, while May has the fewest (2.7%).
Winter months (Nov–Mar) carry 70.4% of truck crashes, vs 59.3% for Wyoming.
The busiest hour is 7–8 am, with 10.6% of truck crashes.
62.0% of truck crashes here happened on snow, slush or ice, against 45.1% across Wyoming.
Where crashes happen
I-80 leads within 10 miles of Lyman with 5 fatal crashes involving a large truck since 2015.
Garbage & waste trucks
1 crash involved a garbage or refuse truck, a 0.4% share (Wyoming: 0.4%).
Route planning tips for Lyman fleets
- Build extra time into December routes: it has the most truck crashes here.
- Look at alternatives to I-80 at busy times: it leads this area in fatal truck crashes.
- 26.9% of truck crashes happen between 6 and 10 am, above Wyoming; consider earlier or later starts where possible.
- With 62.0% of truck crashes on snow, slush or ice (above Wyoming), plan winter equipment checks early.
- 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 Lyman
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| I-80 | 5 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Lyman) |
|---|---|
| I-80 Mp 52.24 | 8 |
| I-80 Mp 52 | 8 |
| I-80 Mp 48.33 | 7 |
| I-80 Mp 51.8 | 5 |
| I-80 Mp 52.47 | 4 |
| I-80 Mp 52.43 | 4 |
| I-80 Mp 50.1 | 3 |
| I-80 Mp 45.90 | 3 |
Lyman at a glance
| Population | 2,191 |
| Land area | 1.6 sq mi |
| Density | 1,394 per sq mi |
| Median household income (ZIP 82937) | $98,000 |
| Median home value (ZIP 82937) | $252,289 |
Waste facilities and haulers nearby
Historical data: truck crashes in Lyman 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 | 20 | — | 1.7 |
| 2000s | 14 | -32% | 1.1 |
| 2010s | 17 | +22% | 1.0 |
| 2020s | 19 | +14% | 1.0 |
From the 1990s to the 2020s, yearly reported truck crashes went from 20 to 19. Some of the change may reflect how crashes were reported. Fatal crashes involving a large truck averaged 1.5 a year in 2016–19 and 1.0 a year in 2020–24.
Nearby places
Questions fleets ask about Lyman
How many truck accidents are there in Lyman?
Since 2015, 226 crashes involving commercial trucks were reported in Lyman (95 injured, 3 killed).
Where do fatal truck crashes happen most in Lyman?
I-80 had 5 fatal crashes involving a large truck within 10 miles of Lyman since 2015, more than any other road.
When do most truck crashes happen in Lyman?
The worst month is December: 20.8% of truck crashes in Lyman happen then.
Are garbage truck crashes common in Lyman?
1 crash involving garbage or refuse trucks have been reported in Lyman since 2015, 0.4% of all truck crashes.
How does Lyman compare with Wyoming for truck crashes?
Lyman records 896.2 truck crashes per 100,000 residents a year, against 187.2 across Wyoming.
How can I plan a safer truck route in Lyman?
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.