Garrison, MT truck route planning & crash data
Plan safer truck routes in Garrison: commercial truck and garbage truck crashes in Garrison and Powell County, dangerous roads, seasonality and route safety data for fleets. Patterns use Powell County numbers.
Where fatal truck crashes happened
Risk scorecard
Key findings
Snapshot
Crashes by month
Garbage trucks vs all trucks
1 of 191 truck crashes since 2015.
Deadliest roads
How Powell County compares with Montana
Powell County against Montana and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Powell County stands out
Full comparison
| Measure (2015–2025) | Powell County | Montana | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 233.7 | 64.3 | 49.7 | 3.6× the state |
| Deaths per 100 crashes | 3.3 | 3.8 | 3.4 | 13% below the state |
| Injuries per crash | 0.31 | 0.34 | 0.49 | 9% below the state |
| Garbage-truck share | 0.5% | 0.9% | 2.3% | 40% below the state |
| On snow, slush or ice | 51.4% | 39.4% | 6.2% | 1.3× the state |
| Morning rush (6–10 am) | 25.1% | 22.9% | 23.7% | 1.1× the state |
| In rain, sleet or snow | 23.5% | 20.6% | 13.8% | 1.1× the state |
| Winter months (Nov–Mar) | 65.0% | 54.3% | 41.9% | 1.2× the state |
| After dark | 45.9% | 30.8% | 24.8% | 1.5× the state |
Powell County sits below Montana on deaths per 100 crashes, injuries per crash and garbage-truck share. It runs above Montana on crashes per 100k residents / yr, on snow, slush or ice and morning rush (6–10 am).
What stands out in Powell County: February the month with the most truck crashes: 16.8% of the year's total.
Overview
Powell County has recorded 191 truck crashes since 2015, with 60 people injured and 9 killed.
Across the years with complete reporting, that is roughly one truck crash every 22 days.
Garrison had 0 reported truck crashes since 2015, too few for reliable patterns, so the charts and findings on this page use Powell County numbers.
91% of truck crash reports in Powell County since 2015 leave the city field blank; place counts include only reports that name the place.
When crashes happen
Truck crashes peak in February (16.8% of the year) and are lowest in August (2.1%).
Winter months (Nov–Mar) carry 65.0% of truck crashes, vs 54.3% for Montana.
The busiest hour is 8–9 am, with 7.3% of truck crashes.
51.4% of truck crashes here happened on snow, slush or ice, against 39.4% across Montana.
Where crashes happen
Since 2015, fatal crashes with a large truck within 10 miles of Garrison happened on I-90 (1); no road leads clearly.
Garbage & waste trucks
Garbage and refuse trucks were involved in 1 crash, 0.5% of the total, against 0.9% across Montana.
Route planning tips for Garrison fleets
- Plan February schedules with more margin; it is the worst month for truck crashes in Powell County.
- 25.1% of truck crashes happen between 6 and 10 am, above Montana; consider earlier or later starts where possible.
- With 51.4% of truck crashes on snow, slush or ice (above Montana), plan winter equipment checks early.
- Check your own stops for crash hotspots and low bridges with the free Route Planner.
About the data
Sources: the FMCSA crash file for all reported truck crashes and NHTSA FARS for fatal crashes with a large truck. Every statement here comes straight from those numbers.
Truck crashes by year: all trucks vs garbage trucks
Seasonality: when trucks crash in Powell County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| I-90 | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Powell County) |
|---|---|
| Mile 194.0 I-90 | 1 |
| Mm 117.1 I-90 | 1 |
| Mm 167.9 I90 | 1 |
| Mm 169.9 I-90W | 1 |
| Mm 172.1 I90E | 1 |
| Mm 179.5 I90 | 1 |
| Mm160.9 I-90 | 1 |
| Mm163.1 I90 | 1 |
Garrison at a glance
| Land area | 9.6 sq mi |
| Median household income (ZIP 59731) | $90,000 |
Waste facilities and haulers nearby
Historical data: truck crashes in Powell 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 | — | 0.2 |
| 2000s | 10 | +1920% | 0.7 |
| 2010s | 14 | +34% | 0.2 |
| 2020s | 18 | +31% | 0.4 |
From the 2000s to the 2020s, yearly reported truck crashes went from 10 to 18. Some of the change may reflect how crashes were reported. Fatal large-truck crashes: 0.2 a year in 2016–19, 0.4 a year in 2020–24.
Nearby places
Questions fleets ask about Garrison
How many truck crashes happen in Garrison?
191 truck crashes have been reported in Powell County since 2015, with 9 deaths and 60 injuries.
When do most truck crashes happen in Garrison?
The worst month is February: 16.8% of truck crashes in Powell County happen then.
How many garbage truck crashes are there in Garrison?
Since 2015, Powell County has reported 1 garbage-truck crash, or 0.5% of its truck crashes.
How does Garrison compare with Montana for truck crashes?
The yearly rate is 233.7 truck crashes per 100,000 residents in Powell County, vs 64.3 for Montana.
What is the best way to plan truck routes in Garrison?
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.