Four Corners, MT truck route planning & crash data
Plan safer truck routes in Four Corners: commercial truck and garbage truck crashes in Four Corners and Gallatin County, dangerous roads, seasonality and route safety data for fleets. Patterns use Gallatin County numbers.
Where fatal truck crashes happened
Risk scorecard
Key findings
Snapshot
Crashes by month
Garbage trucks vs all trucks
20 of 838 truck crashes since 2015.
Deadliest roads
How Gallatin County compares with Montana
Gallatin County against Montana and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Gallatin County stands out
Full comparison
| Measure (2015–2025) | Gallatin County | Montana | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 57.3 | 64.3 | 49.7 | 11% below the state |
| Deaths per 100 crashes | 3.2 | 3.8 | 3.4 | 16% below the state |
| Injuries per crash | 0.32 | 0.34 | 0.49 | same |
| Garbage-truck share | 2.2% | 0.9% | 2.3% | 2.4× the state |
| On snow, slush or ice | 42.2% | 39.4% | 6.2% | 1.1× the state |
| Morning rush (6–10 am) | 21.2% | 22.9% | 23.7% | 7% below the state |
| In rain, sleet or snow | 22.1% | 20.6% | 13.8% | 1.1× the state |
| Winter months (Nov–Mar) | 49.4% | 54.3% | 41.9% | 9% below the state |
| After dark | 28.1% | 30.8% | 24.8% | 9% below the state |
Gallatin County has lower values than Montana for crashes per 100k residents / yr, deaths per 100 crashes and morning rush (6–10 am). It runs above Montana on garbage-truck share, on snow, slush or ice and in rain, sleet or snow.
Gallatin County at a glance: 1 in 44 garbage-truck share of crashes is 2.2%, against 0.9% for Montana.
Overview
Gallatin County has recorded 838 truck crashes since 2015, with 263 people injured and 26 killed.
That averages about one truck crash every 5 days in fully reported years.
With 0 truck crashes reported in Four Corners since 2015, this page uses Gallatin County numbers for its patterns and comparisons.
90% of truck crash reports in Gallatin County since 2015 leave the city field blank; place counts include only reports that name the place.
When crashes happen
The worst month is February with 11.5% of truck crashes; the quietest is July at 5.7%.
Winter months (Nov–Mar) carry 49.4% of truck crashes, vs 54.3% for Montana.
The busiest hour is 10–11 am, with 8.6% of truck crashes.
42.2% of truck crashes here happened on snow, slush or ice, against 39.4% across Montana.
Where crashes happen
Within this area, I-90 had the most fatal crashes involving a large truck since 2015 (6). It is followed by CR-BAXTER Lane (2), US-191 (2) and SR-85 (1).
Garbage & waste trucks
Garbage trucks account for 20 of the truck crashes here, or 2.4%, compared with 0.9% in Montana.
The most garbage-truck crashes happen in December (20%).
Route planning tips for Four Corners fleets
- Plan February schedules with more margin; it is the worst month for truck crashes in Gallatin County.
- Check whether your routes use I-90, the road with the most fatal truck crashes in this area.
- Waste haulers: December is the peak month for garbage-truck crashes in Gallatin County.
- Icy and snowy roads show up in 42.2% of truck crashes here, more than Montana; schedule winter checks early.
- 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 Gallatin County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| I-90 | 6 |
| CR-BAXTER Lane | 2 |
| US-191 | 2 |
| SR-85 | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Gallatin County) |
|---|---|
| Mm5.9 Mt85 | 3 |
| Cameron Bridge Rd | 2 |
| I-90 | 2 |
| Mm313.9 I90E | 2 |
| Mm316.0 I90 | 2 |
| Mt85 (Jackrabbit Lane) | 2 |
| 63.8 Us-191 | 1 |
| E Main St | 1 |
Four Corners at a glance
| Land area | 10.8 sq mi |
Waste facilities and haulers nearby
Historical data: truck crashes in Gallatin 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 | 0 | — | 1.7 |
| 2000s | 44 | +13010% | 2.5 |
| 2010s | 44 | +2% | 1.1 |
| 2020s | 81 | +83% | 3.0 |
From the 2000s to the 2020s, yearly reported truck crashes went from 44 to 81. Some of the change may reflect how crashes were reported. NHTSA counts 1.8 fatal large-truck crashes a year in 2016–19 and 3.0 a year in 2020–24.
Nearby places
Questions fleets ask about Four Corners
How common are truck crashes in Four Corners?
Since 2015, 838 crashes involving commercial trucks were reported in Gallatin County (263 injured, 26 killed).
Which road has the most fatal truck crashes in Four Corners?
NHTSA data shows I-90 with 6 fatal large-truck crashes within 10 miles of Four Corners since 2015, the highest of any road.
When do most truck crashes happen in Four Corners?
The worst month is February: 11.5% of truck crashes in Gallatin County happen then.
How many garbage truck accidents happen in Four Corners?
Garbage trucks were involved in 20 reported crashes in Gallatin County since 2015 (2.4% of truck crashes).
What is the truck crash rate in Four Corners compared with Montana?
The yearly rate is 57.3 truck crashes per 100,000 residents in Gallatin County, vs 64.3 for Montana.
How do I plan a garbage truck route in Four Corners?
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.