Ada County, ID truck route planning & crash data
Plan safer truck routes in Ada County: commercial truck and garbage truck crashes, 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
9.1 deaths per 100 garbage-truck crashes vs 4.2 for all trucks.
Deadliest roads
How Ada County compares with Idaho
Ada County against Idaho and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Ada County stands out
Full comparison
| Measure (2015–2025) | Ada County | Idaho | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 16.0 | 37.4 | 49.7 | 57% below the state |
| Deaths per 100 crashes | 4.2 | 6.1 | 3.4 | 31% below the state |
| Injuries per crash | 0.47 | 0.55 | 0.49 | 15% below the state |
| Garbage-truck share | 2.3% | 1.6% | 2.3% | 1.5× the state |
| On snow, slush or ice | 8.1% | 16.0% | 6.2% | 49% below the state |
| Morning rush (6–10 am) | 23.9% | 23.0% | 23.7% | same |
| In rain, sleet or snow | 7.8% | 10.2% | 13.8% | 23% below the state |
| Winter months (Nov–Mar) | 41.6% | 40.9% | 41.9% | same |
| After dark | 21.3% | 22.8% | 24.8% | same |
Ada County sits below Idaho on crashes per 100k residents / yr, deaths per 100 crashes and injuries per crash. It runs above Idaho on garbage-truck share.
Ada County at a glance: 1 in 43 crashes involve a garbage truck (24 since 2015), vs 1.6% across Idaho.
Overview
Police reported 1,012 crashes involving commercial trucks in Ada County since 2015: 480 people were injured and 42 were killed.
That averages about one truck crash every 4 days in fully reported years.
When crashes happen
Truck crashes peak in September (9.9% of the year) and are lowest in November (6.4%).
The five winter months (November to March) hold 41.6% of truck crashes, against 40.9% across Idaho.
The busiest hour is 2–3 pm, with 8.4% of truck crashes.
8.1% of truck crashes here happened on snow, slush or ice, against 16.0% across Idaho.
Where crashes happen
Within this area, I-84 had the most fatal crashes involving a large truck since 2015 (9). After it: SR-55 (3), SR-16 (2) and SR-44 (2).
Garbage & waste trucks
Garbage trucks account for 24 of the truck crashes here, or 2.4%, compared with 1.6% in Idaho.
Their busiest month is October, with 21% of garbage-truck crashes.
Per 100 crashes, garbage trucks recorded 9.1 deaths compared with 4.2 for all trucks.
Route planning tips for Ada County fleets
- Review driver schedules for September, the month with the most truck crashes.
- Where you can, review stops along I-84; it has the most fatal large-truck crashes nearby.
- Waste haulers: October is the peak month for garbage-truck crashes in Ada County.
- 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 Ada County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (in Ada County) |
|---|---|
| I-84 | 9 |
| SR-55 | 3 |
| SR-16 | 2 |
| SR-44 | 2 |
| 16th St | 1 |
| Executive Dr | 1 |
| Gowen Rd | 1 |
| S Eagle Rd | 1 |
| S Federal Way | 1 |
| SR-21 | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Ada County) |
|---|---|
| I-84 | 309 |
| Eagle | 27 |
| Chinden | 25 |
| Sh 44 | 22 |
| Sh 16 | 22 |
| Franklin Rd | 18 |
| Franklin | 18 |
| Chinden Blvd | 16 |
Ada County at a glance
| Population | 535,799 |
| Land area | 1,052.2 sq mi |
| Density | 509 per sq mi |
| Median household income (ZIP average) | $92,782 |
Waste facilities and haulers nearby
Historical data: truck crashes in Ada 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 | 28 | — | 1.6 |
| 2000s | 93 | +235% | 2.8 |
| 2010s | 76 | -18% | 1.2 |
| 2020s | 82 | +9% | 2.4 |
Reported truck crashes averaged 28 a year in the 1990s and 82 a year in the 2020s. Reporting practices changed over time, so part of any change can come from reporting. NHTSA counts 2.2 fatal large-truck crashes a year in 2016–19 and 2.4 a year in 2020–24.
Cities, towns & communities in Ada County
ZIP codes in Ada County
Nearby counties
Questions fleets ask about Ada County
How common are truck crashes in Ada County?
Ada County has had 1,012 reported truck crashes since 2015, injuring 480 people and killing 42.
What is the most dangerous road for trucks in Ada County?
NHTSA data shows I-84 with 9 fatal large-truck crashes in Ada County since 2015, the highest of any road.
What is the worst month for truck crashes in Ada County?
September has the most truck crashes in Ada County, 9.9% of the yearly total.
Are garbage truck crashes common in Ada County?
Garbage trucks were involved in 24 reported crashes in Ada County since 2015 (2.4% of truck crashes).
How do truck crashes in Ada County compare with Idaho?
Per 100,000 residents, Ada County has 16.0 truck crashes a year; Idaho has 37.4.
How do I plan a garbage truck route in Ada County?
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.