Mammoth, PA truck route planning & crash data
Plan safer truck routes in Mammoth: commercial truck and garbage truck crashes in Mammoth and Westmoreland County, dangerous roads, seasonality and route safety data for fleets. Patterns use Westmoreland County numbers.
Where fatal truck crashes happened
Risk scorecard
Key findings
Snapshot
Crashes by month
Garbage trucks vs all trucks
2.2 deaths per 100 garbage-truck crashes vs 2.5 for all trucks.
Deadliest roads
How Westmoreland County compares with Pennsylvania
Westmoreland County against Pennsylvania and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Westmoreland County stands out
Full comparison
| Measure (2015–2025) | Westmoreland County | Pennsylvania | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 58.7 | 57.2 | 49.7 | same |
| Deaths per 100 crashes | 2.5 | 2.6 | 3.4 | same |
| Injuries per crash | 0.42 | 0.47 | 0.49 | 11% below the state |
| Garbage-truck share | 4.0% | 3.6% | 2.3% | 1.1× the state |
| On snow, slush or ice | 8.3% | 9.1% | 6.2% | 9% below the state |
| Morning rush (6–10 am) | 24.1% | 24.5% | 23.7% | same |
| In rain, sleet or snow | 16.8% | 19.0% | 13.8% | 11% below the state |
| Winter months (Nov–Mar) | 41.5% | 42.7% | 41.9% | same |
| After dark | 23.9% | 24.2% | 24.8% | same |
Westmoreland County sits below Pennsylvania on injuries per crash, on snow, slush or ice and in rain, sleet or snow. Where it is higher: garbage-truck share.
What stands out in Westmoreland County: September is the peak month for garbage-truck crashes: 16% of them.
Overview
Police reported 2,418 crashes involving commercial trucks in Westmoreland County since 2015: 1,010 people were injured and 56 were killed.
Across the years with complete reporting, that is roughly one truck crash every 2 days.
Mammoth had 0 reported truck crashes since 2015, too few for reliable patterns, so the charts and findings on this page use Westmoreland County numbers.
When crashes happen
January has the most truck crashes, 9.9% of the yearly total, while March has the fewest (6.9%).
The five winter months (November to March) hold 41.5% of truck crashes, against 42.7% across Pennsylvania.
By time of day, 2–3 pm stands out with 7.9% of truck crashes.
8.3% of truck crashes here happened on snow, slush or ice, against 9.1% across Pennsylvania.
Where crashes happen
I-76 leads within 10 miles of Mammoth with 4 fatal crashes involving a large truck since 2015. After it: SR-31 (2), US-119 (2) and US-30 (2).
Garbage & waste trucks
Garbage trucks account for 91 of the truck crashes here, or 3.8%, compared with 3.6% in Pennsylvania.
Their busiest month is September, with 16% of garbage-truck crashes.
Deaths per 100 garbage-truck crashes: 2.2, vs 2.5 for all truck crashes.
Route planning tips for Mammoth fleets
- Review driver schedules for January, the month with the most truck crashes.
- Where you can, review stops along I-76; it has the most fatal large-truck crashes nearby.
- Waste haulers: September is the peak month for garbage-truck crashes in Westmoreland County.
- 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 Westmoreland County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| I-76 | 4 |
| SR-31 | 2 |
| US-119 | 2 |
| US-30 | 2 |
| SR-0031 | 1 |
| SR-0130 | 1 |
| SR-1042 | 1 |
| SR-982 | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Westmoreland County) |
|---|---|
| I-6000 | 518 |
| I-0070 | 348 |
| SR-0022 | 261 |
| SR-0030 | 192 |
| SR-0066 | 101 |
| SR-0119 | 85 |
| SR-0031 | 68 |
| SR-0051 | 48 |
Mammoth at a glance
| Land area | 2.0 sq mi |
Waste facilities and haulers nearby
Historical data: truck crashes in Westmoreland 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 | 193 | — | 5.5 |
| 2000s | 197 | +2% | 5.0 |
| 2010s | 170 | -14% | 4.8 |
| 2020s | 201 | +19% | 4.2 |
In the 1990s about 193 truck crashes a year were reported; in the 2020s, about 201. Reporting coverage also changed between these periods. Fatal crashes involving a large truck averaged 4.5 a year in 2016–19 and 4.2 a year in 2020–24.
Nearby places
Questions fleets ask about Mammoth
How many truck crashes happen in Mammoth?
2,418 truck crashes have been reported in Westmoreland County since 2015, with 56 deaths and 1,010 injuries.
What is the most dangerous road for trucks in Mammoth?
I-76 had 4 fatal crashes involving a large truck within 10 miles of Mammoth since 2015, more than any other road.
Which month has the most truck crashes in Mammoth?
Truck crashes in Westmoreland County peak in January, with 9.9% of the year's crashes.
Are garbage truck crashes common in Mammoth?
91 crashes involving garbage or refuse trucks have been reported in Westmoreland County since 2015, 3.8% of all truck crashes.
How does Mammoth compare with Pennsylvania for truck crashes?
Westmoreland County records 58.7 truck crashes per 100,000 residents a year, against 57.2 across Pennsylvania.
How can I plan a safer truck route in Mammoth?
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.