ZIP 59636 (Fort Harrison, MT) truck route planning & crash data
Plan safer truck routes around ZIP 59636: commercial truck and garbage truck crashes here and in Lewis and Clark 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
2 of 228 truck crashes since 2015.
Deadliest roads
How Lewis and Clark County compares with Montana
Lewis and Clark County against Montana and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Lewis and Clark County stands out
Full comparison
| Measure (2015–2025) | Lewis and Clark County | Montana | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 24.9 | 64.3 | 49.7 | 61% below the state |
| Deaths per 100 crashes | 5.3 | 3.8 | 3.4 | 1.4× the state |
| Injuries per crash | 0.29 | 0.34 | 0.49 | 15% below the state |
| Garbage-truck share | 1.0% | 0.9% | 2.3% | same |
| On snow, slush or ice | 34.5% | 39.4% | 6.2% | 12% below the state |
| Morning rush (6–10 am) | 20.9% | 22.9% | 23.7% | 9% below the state |
| In rain, sleet or snow | 24.3% | 20.6% | 13.8% | 1.2× the state |
| Winter months (Nov–Mar) | 45.6% | 54.3% | 41.9% | 16% below the state |
| After dark | 20.9% | 30.8% | 24.8% | 32% below the state |
Lewis and Clark County has lower values than Montana for crashes per 100k residents / yr, injuries per crash and on snow, slush or ice. It runs above Montana on deaths per 100 crashes and in rain, sleet or snow.
ZIP 59636 at a glance: US-12 2 fatal truck crashes since 2015, more than any other road within 10 miles of ZIP 59636.
Overview
Lewis and Clark County has recorded 228 truck crashes since 2015, with 69 people injured and 12 killed.
Across the years with complete reporting, that is roughly one truck crash every 19 days.
When crashes happen
Truck crashes peak in October (13.2% of the year) and are lowest in May (3.9%).
November through March accounts for 45.6% of truck crashes here, compared with 54.3% in Montana.
More truck crashes happen at 1–2 pm than at any other hour (9.6%).
Snow, slush or ice was on the road in 34.5% of truck crashes, compared with 39.4% in Montana.
Where crashes happen
Within this area, US-12 had the most fatal crashes involving a large truck since 2015 (2). It is followed by Canyon Ferry Rd (1), I-15 (1) and N Rodney St (1).
Garbage & waste trucks
2 crashes involved a garbage or refuse truck, a 0.9% share (Montana: 0.9%).
Route planning tips for ZIP 59636 fleets
- Review driver schedules for October, the month with the most truck crashes.
- Where you can, review stops along US-12; it has the most fatal large-truck crashes nearby.
- 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 Lewis and Clark County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| US-12 | 2 |
| Canyon Ferry Rd | 1 |
| I-15 | 1 |
| N Rodney St | 1 |
| Sr-Green Meadow Dr | 1 |
| Ssr-453 Lincoln Rd | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Lewis and Clark County) |
|---|---|
| Mm 221.5 I-15 | 4 |
| Mm 213.0 I-15 | 3 |
| Mm221.6 I-15 | 2 |
| Canyon Ferry Rd\Custer Ave | 1 |
| E Us Highway 12 And Lola St | 1 |
| Mm 108.2 Mt Highway 200 | 1 |
| Mm 213.1 I-15 | 1 |
| Mm 213.1 I15 | 1 |
ZIP 59636 at a glance
| Population | 32 |
| Density | 4 per sq mi |
| Home ownership | 0% |
Waste facilities and haulers nearby
Historical data: truck crashes in Lewis and Clark 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 | — | — | 0.5 |
| 2000s | 18 | — | 0.5 |
| 2010s | 18 | +1% | 0.5 |
| 2020s | 18 | +0% | 1.2 |
From the 2000s to the 2020s, yearly reported truck crashes went from 18 to 18. Some of the change may reflect how crashes were reported. NHTSA counts 0.8 fatal large-truck crashes a year in 2016–19 and 1.2 a year in 2020–24.
Nearby ZIP codes
Questions fleets ask about ZIP 59636
How many truck accidents are there in ZIP 59636?
Since 2015, 228 crashes involving commercial trucks were reported in Lewis and Clark County (69 injured, 12 killed).
What is the most dangerous road for trucks in ZIP 59636?
Since 2015, US-12 has had the most fatal large-truck crashes within 10 miles of ZIP 59636: 2.
When do most truck crashes happen in ZIP 59636?
October has the most truck crashes in Lewis and Clark County, 13.2% of the yearly total.
Are garbage truck crashes common in ZIP 59636?
2 crashes involving garbage or refuse trucks have been reported in Lewis and Clark County since 2015, 0.9% of all truck crashes.
How does ZIP 59636 compare with Montana for truck crashes?
Lewis and Clark County records 24.9 truck crashes per 100,000 residents a year, against 64.3 across Montana.
What is the best way to plan truck routes in ZIP 59636?
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.