Lewiston, ID truck route planning & crash data
Plan safer truck routes in Lewiston: commercial truck and garbage truck crashes in Lewiston and Nez Perce County, dangerous roads, seasonality and route safety data for fleets. Patterns use Nez Perce County numbers.
Where fatal truck crashes happened
Risk scorecard
Key findings
Snapshot
Crashes by month
Garbage trucks vs all trucks
4 of 178 truck crashes since 2015.
Deadliest roads
How Nez Perce County compares with Idaho
Nez Perce County against Idaho and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Nez Perce County stands out
Full comparison
| Measure (2015–2025) | Nez Perce County | Idaho | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 35.9 | 37.4 | 49.7 | same |
| Deaths per 100 crashes | 7.7 | 6.1 | 3.4 | 1.3× the state |
| Injuries per crash | 0.54 | 0.55 | 0.49 | same |
| Garbage-truck share | 2.4% | 1.6% | 2.3% | 1.5× the state |
| On snow, slush or ice | 5.9% | 16.0% | 6.2% | 63% below the state |
| Morning rush (6–10 am) | 27.8% | 23.0% | 23.7% | 1.2× the state |
| In rain, sleet or snow | 10.7% | 10.2% | 13.8% | same |
| Winter months (Nov–Mar) | 34.9% | 40.9% | 41.9% | 15% below the state |
| After dark | 13.6% | 22.8% | 24.8% | 40% below the state |
Nez Perce County has lower values than Idaho for on snow, slush or ice, winter months (nov–mar) and after dark. Where it is higher: deaths per 100 crashes, garbage-truck share and morning rush (6–10 am).
What stands out in Nez Perce County: July worst month: 14.0% of truck crashes, vs 8.3% in an average month.
Overview
Since 2015, 178 crashes involving commercial trucks have been reported in Nez Perce County. They injured 97 people and killed 15.
Across the years with complete reporting, that is roughly one truck crash every 24 days.
With 123 truck crashes reported in Lewiston since 2015, this page uses Nez Perce County numbers for its patterns and comparisons.
When crashes happen
The worst month is July with 14.0% of truck crashes; the quietest is March at 4.5%.
November through March accounts for 34.9% of truck crashes here, compared with 40.9% in Idaho.
The busiest hour is 2–3 pm, with 10.7% of truck crashes.
Snow, slush or ice was on the road in 5.9% of truck crashes, compared with 16.0% in Idaho.
Where crashes happen
The deadliest road for trucks within 10 miles of Lewiston is US-95, with 3 fatal large-truck crashes since 2015. After it: Bryden Canyon Rd (1), CR-WILMA Dr (1) and Leevee Bypass Rd (1).
Garbage & waste trucks
Garbage and refuse trucks were involved in 4 crashes, 2.2% of the total, against 1.6% across Idaho.
Route planning tips for Lewiston fleets
- Build extra time into July routes: it has the most truck crashes here.
- Check whether your routes use US-95, the road with the most fatal truck crashes in this area.
- The morning rush (6–10 am) holds 27.8% of truck crashes here, more than Idaho; adjust start times where you can.
- 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 Nez Perce County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| US-95 | 3 |
| Bryden Canyon Rd | 1 |
| CR-WILMA Dr | 1 |
| Leevee Bypass Rd | 1 |
| SR-128 | 1 |
| SR-129 | 1 |
| US-195 | 1 |
| Waha Rd | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Nez Perce County) |
|---|---|
| US-95 | 73 |
| US-12 | 36 |
| Sh 128 | 5 |
| Main | 5 |
| Mill | 4 |
| Mill Rd | 4 |
| Southwick | 4 |
| Tammany Creek | 3 |
Lewiston at a glance
| Population | 34,693 |
| Land area | 17.5 sq mi |
| Density | 1,977 per sq mi |
| Median household income (ZIP 83540) | $62,963 |
| Median home value (ZIP 83540) | $203,350 |
Waste facilities and haulers nearby
Historical data: truck crashes in Nez Perce 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 | 5 | — | 1.3 |
| 2000s | 15 | +194% | 1.0 |
| 2010s | 13 | -10% | 0.6 |
| 2020s | 15 | +12% | 1.6 |
From the 1990s to the 2020s, yearly reported truck crashes went from 5 to 15. Some of the change may reflect how crashes were reported. NHTSA counts 1.0 fatal large-truck crashes a year in 2016–19 and 1.6 a year in 2020–24.
Nearby places
Questions fleets ask about Lewiston
How many truck accidents are there in Lewiston?
Nez Perce County has had 178 reported truck crashes since 2015, injuring 97 people and killing 15.
Which road has the most fatal truck crashes in Lewiston?
NHTSA data shows US-95 with 3 fatal large-truck crashes within 10 miles of Lewiston since 2015, the highest of any road.
What is the worst month for truck crashes in Lewiston?
July has the most truck crashes in Nez Perce County, 14.0% of the yearly total.
How many garbage truck crashes are there in Lewiston?
4 crashes involving garbage or refuse trucks have been reported in Nez Perce County since 2015, 2.2% of all truck crashes.
How do truck crashes in Lewiston compare with Idaho?
The yearly rate is 35.9 truck crashes per 100,000 residents in Nez Perce County, vs 37.4 for Idaho.
How can I plan a safer truck route in Lewiston?
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.