ZIP 59602 (Helena, MT) truck route planning & crash data
Plan safer truck routes around ZIP 59602: 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.
The headline for ZIP 59602: US-12 2 fatal truck crashes since 2015, more than any other road within 10 miles of ZIP 59602.
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
October has the most truck crashes, 13.2% of the yearly total, while May has the fewest (3.9%).
Winter months (Nov–Mar) carry 45.6% of truck crashes, vs 54.3% for Montana.
More truck crashes happen at 1–2 pm than at any other hour (9.6%).
34.5% of truck crashes here happened on snow, slush or ice, against 39.4% across 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), Sr-Green Meadow Dr (1) and Ssr-453 Lincoln Rd (1).
Garbage & waste trucks
2 crashes involved a garbage or refuse truck, a 0.9% share (Montana: 0.9%).
Route planning tips for ZIP 59602 fleets
- Plan October schedules with more margin; it is the worst month for truck crashes in Lewis and Clark County.
- Where you can, review stops along US-12; it has the most fatal large-truck crashes nearby.
- Paste your stops into the free Route Planner to see the risk score, safer alternatives and low bridges.
About the data
Crash counts come from the FMCSA crash file (police-reported crashes involving trucks over 10,000 lb); fatal-crash locations come from NHTSA FARS. Text on this page states only what these numbers show.
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 |
| 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 59602 at a glance
| Population | 30,754 |
| Density | 23 per sq mi |
| Median household income | $92,985 |
| Median home value | $407,183 |
| Home ownership | 84% |
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 |
Reported truck crashes averaged 18 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 crashes involving a large truck averaged 0.8 a year in 2016–19 and 1.2 a year in 2020–24.
Nearby ZIP codes
Questions fleets ask about ZIP 59602
How common are truck crashes in ZIP 59602?
Lewis and Clark County has had 228 reported truck crashes since 2015, injuring 69 people and killing 12.
Which road has the most fatal truck crashes in ZIP 59602?
NHTSA data shows US-12 with 2 fatal large-truck crashes within 10 miles of ZIP 59602 since 2015, the highest of any road.
Which month has the most truck crashes in ZIP 59602?
The worst month is October: 13.2% of truck crashes in Lewis and Clark County happen then.
Are garbage truck crashes common in ZIP 59602?
2 crashes involving garbage or refuse trucks have been reported in Lewis and Clark County since 2015, 0.9% of all truck crashes.
How do truck crashes in ZIP 59602 compare with Montana?
The yearly rate is 24.9 truck crashes per 100,000 residents in Lewis and Clark County, vs 64.3 for Montana.
What is the best way to plan truck routes in ZIP 59602?
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.