Summit County, CO truck route planning & crash data
Plan safer truck routes in Summit 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
5 of 506 truck crashes since 2015.
Deadliest roads
How Summit County compares with Colorado
Summit County against Colorado and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Summit County stands out
Full comparison
| Measure (2015–2025) | Summit County | Colorado | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 144.2 | 32.6 | 49.7 | 4.4× the state |
| Deaths per 100 crashes | 3.9 | 5.1 | 3.4 | 24% below the state |
| Injuries per crash | 0.35 | 0.32 | 0.49 | 1.1× the state |
| Garbage-truck share | 1.0% | 2.8% | 2.3% | 63% below the state |
| On snow, slush or ice | 44.1% | 14.8% | 6.2% | 3.0× the state |
| Morning rush (6–10 am) | 23.7% | 25.7% | 23.7% | 8% below the state |
| In rain, sleet or snow | 33.7% | 13.2% | 13.8% | 2.6× the state |
| Winter months (Nov–Mar) | 49.8% | 43.5% | 41.9% | 1.1× the state |
| After dark | 27.1% | 22.4% | 24.8% | 1.2× the state |
Summit County has lower values than Colorado for deaths per 100 crashes, garbage-truck share and morning rush (6–10 am). Where it is higher: crashes per 100k residents / yr, injuries per crash and on snow, slush or ice.
The headline for Summit County: 44.1% share of truck crashes on snow, slush or ice (Colorado: 14.8%).
Overview
Summit County has recorded 506 truck crashes since 2015, with 175 people injured and 21 killed.
In complete reporting years that works out to about one truck crash every 8 days.
When crashes happen
February has the most truck crashes, 12.8% of the yearly total, while August has the fewest (4.7%).
November through March accounts for 49.8% of truck crashes here, compared with 43.5% in Colorado.
By time of day, 3–4 pm stands out with 8.5% of truck crashes.
44.1% of truck crashes here happened on snow, slush or ice, against 14.8% across Colorado.
Where crashes happen
I-70 leads in Summit County with 4 fatal crashes involving a large truck since 2015. After it: SR-9 (2), US-6 (2) and Bridge St (1).
Garbage & waste trucks
Garbage trucks account for 5 of the truck crashes here, or 1.0%, compared with 2.8% in Colorado.
Route planning tips for Summit County fleets
- Plan February schedules with more margin; it is the worst month for truck crashes in Summit County.
- Look at alternatives to I-70 at busy times: it leads this area in fatal truck crashes.
- 44.1% of truck crashes were on snow, slush or ice, above Colorado; plan winter equipment checks before the season.
- Use the free Route Planner to score your route and spot low bridges before drivers head out.
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 Summit County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (in Summit County) |
|---|---|
| I-70 | 4 |
| SR-9 | 2 |
| US-6 | 2 |
| Bridge St | 1 |
| CR-SWAN Mountain Rd | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Summit County) |
|---|---|
| I70 At Mp 213 | 16 |
| I 70 At Mp 208 | 12 |
| I 70 At Mp 207 | 12 |
| I70 At Mp 210 | 11 |
| I70 At Mp 208 | 11 |
| I 70 At Mp 212 | 7 |
| I70 At Mp 209 | 7 |
| I70 At Mp 205 | 6 |
Summit County at a glance
| Population | 30,882 |
| Land area | 608.3 sq mi |
| Density | 51 per sq mi |
| Median household income (ZIP average) | $108,585 |
Waste facilities and haulers nearby
Historical data: truck crashes in Summit 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 | 30 | — | 0.9 |
| 2000s | 43 | +42% | 0.9 |
| 2010s | 43 | +0% | 0.6 |
| 2020s | 46 | +8% | 0.8 |
In the 1990s about 30 truck crashes a year were reported; in the 2020s, about 46. Reporting coverage also changed between these periods. NHTSA counts 1.2 fatal large-truck crashes a year in 2016–19 and 0.8 a year in 2020–24.
Cities, towns & communities in Summit County
ZIP codes in Summit County
Nearby counties
Questions fleets ask about Summit County
How common are truck crashes in Summit County?
Since 2015, 506 crashes involving commercial trucks were reported in Summit County (175 injured, 21 killed).
Where do fatal truck crashes happen most in Summit County?
Since 2015, I-70 has had the most fatal large-truck crashes in Summit County: 4.
When do most truck crashes happen in Summit County?
The worst month is February: 12.8% of truck crashes in Summit County happen then.
How many garbage truck accidents happen in Summit County?
5 crashes involving garbage or refuse trucks have been reported in Summit County since 2015, 1.0% of all truck crashes.
How does Summit County compare with Colorado for truck crashes?
Summit County records 144.2 truck crashes per 100,000 residents a year, against 32.6 across Colorado.
How can I plan a safer truck route in Summit County?
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.