ZIP 59731 (Garrison, MT) truck route planning & crash data
Plan safer truck routes around ZIP 59731: commercial truck and garbage truck crashes here and in Powell County, 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 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 |
Compared with Montana, Powell County is lower 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).
Powell County at a glance: February worst month: 16.8% of truck crashes, vs 8.3% in an average month.
Overview
Since 2015, 191 crashes involving commercial trucks have been reported in Powell County. They injured 60 people and killed 9.
In complete reporting years that works out to about one truck crash every 22 days.
When crashes happen
February has the most truck crashes, 16.8% of the yearly total, while August has the fewest (2.1%).
November through March accounts for 65.0% of truck crashes here, compared with 54.3% in Montana.
More truck crashes happen at 8–9 am than at any other hour (7.3%).
Snow, slush or ice was on the road in 51.4% of truck crashes, compared with 39.4% in Montana.
Where crashes happen
Fatal large-truck crashes within 10 miles of ZIP 59731 since 2015 were spread across roads: I-90 (1).
Garbage & waste trucks
Garbage trucks account for 1 of the truck crashes here, or 0.5%, compared with 0.9% in Montana.
Route planning tips for ZIP 59731 fleets
- Plan February schedules with more margin; it is the worst month for truck crashes in Powell County.
- The morning rush (6–10 am) holds 25.1% of truck crashes here, more than Montana; adjust start times where you can.
- 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 |
ZIP 59731 at a glance
| Population | 198 |
| Density | 1 per sq mi |
| Median household income | $90,000 |
| Home ownership | 96% |
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 |
Reported truck crashes averaged 10 a year in the 2000s and 18 a year in the 2020s. Reporting practices changed over time, so part of any change can come from reporting. Fatal large-truck crashes: 0.2 a year in 2016–19, 0.4 a year in 2020–24.
Nearby ZIP codes
Questions fleets ask about ZIP 59731
How common are truck crashes in ZIP 59731?
191 truck crashes have been reported in Powell County since 2015, with 9 deaths and 60 injuries.
Which month has the most truck crashes in ZIP 59731?
February has the most truck crashes in Powell County, 16.8% of the yearly total.
How many garbage truck crashes are there in ZIP 59731?
Since 2015, Powell County has reported 1 garbage-truck crash, or 0.5% of its truck crashes.
How does ZIP 59731 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.
How can I plan a safer truck route in ZIP 59731?
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.