St. Ann Highlands, CO truck route planning & crash data
Plan safer truck routes in St. Ann Highlands: commercial truck and garbage truck crashes in St. Ann Highlands and Boulder County, dangerous roads, seasonality and route safety data for fleets. Patterns use Boulder County numbers.
Where fatal truck crashes happened
Risk scorecard
Key findings
Snapshot
Crashes by month
Garbage trucks vs all trucks
4.5 deaths per 100 garbage-truck crashes vs 4.5 for all trucks.
Deadliest roads
How Boulder County compares with Colorado
Boulder County against Colorado and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Boulder County stands out
Full comparison
| Measure (2015–2025) | Boulder County | Colorado | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 14.6 | 32.6 | 49.7 | 55% below the state |
| Deaths per 100 crashes | 4.5 | 5.1 | 3.4 | 12% below the state |
| Injuries per crash | 0.36 | 0.32 | 0.49 | 1.1× the state |
| Garbage-truck share | 4.1% | 2.8% | 2.3% | 1.5× the state |
| On snow, slush or ice | 10.2% | 14.8% | 6.2% | 31% below the state |
| Morning rush (6–10 am) | 29.0% | 25.7% | 23.7% | 1.1× the state |
| In rain, sleet or snow | 10.0% | 13.2% | 13.8% | 24% below the state |
| Winter months (Nov–Mar) | 42.9% | 43.5% | 41.9% | same |
| After dark | 10.0% | 22.4% | 24.8% | 55% below the state |
Boulder County has lower values than Colorado for crashes per 100k residents / yr, deaths per 100 crashes and on snow, slush or ice. It stands out for higher injuries per crash, garbage-truck share and morning rush (6–10 am).
What stands out in Boulder County: 1 in 24 crashes involve a garbage truck (24 since 2015), vs 2.8% across Colorado.
Overview
Since 2015, 563 crashes involving commercial trucks have been reported in Boulder County. They injured 212 people and killed 24.
In complete reporting years that works out to about one truck crash every 8 days.
With 0 truck crashes reported in St. Ann Highlands since 2015, this page uses Boulder County numbers for its patterns and comparisons.
36% of truck crash reports in Boulder County since 2015 leave the city field blank; place counts include only reports that name the place.
When crashes happen
The worst month is June with 10.8% of truck crashes; the quietest is April at 5.9%.
The five winter months (November to March) hold 42.9% of truck crashes, against 43.5% across Colorado.
By time of day, 1–2 pm stands out with 11.0% of truck crashes.
Snow, slush or ice was on the road in 10.2% of truck crashes, compared with 14.8% in Colorado.
Where crashes happen
Fatal large-truck crashes within 10 miles of St. Ann Highlands since 2015 were spread across roads: CR-SUNSHINE Canyon Dr (1).
Garbage & waste trucks
Garbage trucks account for 24 of the truck crashes here, or 4.3%, compared with 2.8% in Colorado.
Garbage-truck crashes peak in August (17% of them).
Deaths per 100 garbage-truck crashes: 4.5, vs 4.5 for all truck crashes.
Route planning tips for St. Ann Highlands fleets
- Build extra time into June routes: it has the most truck crashes here.
- For residential and commercial waste routes, look again at August schedules: garbage-truck crashes peak then.
- Morning starts matter: 29.0% of truck crashes fall between 6 and 10 am, higher than Colorado.
- 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 Boulder County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| CR-SUNSHINE Canyon Dr | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Boulder County) |
|---|---|
| Hwy 287 At Mp 306 | 4 |
| Hwy 66 At Mp 37 | 4 |
| Ken Pratt Blvd At Bowen St | 3 |
| Hwy 66 At Mp 38 | 3 |
| Hwy 52 At Mp 6 | 3 |
| Hwy 36 At Mp 44 | 3 |
| Hwy 36 At Mp 42 | 3 |
| Hwy 36 At Mp 40 | 3 |
St. Ann Highlands at a glance
| Land area | 1.4 sq mi |
Waste facilities and haulers nearby
Historical data: truck crashes in Boulder 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 | 34 | — | 1.4 |
| 2000s | 46 | +36% | 1.9 |
| 2010s | 50 | +8% | 2.6 |
| 2020s | 44 | -13% | 1.4 |
Reported truck crashes averaged 34 a year in the 1990s and 44 a year in the 2020s. Reporting practices changed over time, so part of any change can come from reporting. Fatal large-truck crashes: 4.2 a year in 2016–19, 1.4 a year in 2020–24.
Nearby places
Questions fleets ask about St. Ann Highlands
How many truck crashes happen in St. Ann Highlands?
Boulder County has had 563 reported truck crashes since 2015, injuring 212 people and killing 24.
What is the worst month for truck crashes in St. Ann Highlands?
Truck crashes in Boulder County peak in June, with 10.8% of the year's crashes.
How many garbage truck crashes are there in St. Ann Highlands?
Garbage trucks were involved in 24 reported crashes in Boulder County since 2015 (4.3% of truck crashes).
What is the truck crash rate in St. Ann Highlands compared with Colorado?
Boulder County records 14.6 truck crashes per 100,000 residents a year, against 32.6 across Colorado.
How can I plan a safer truck route in St. Ann Highlands?
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.