Where It Happens
Search an address, filter by crash type, compare years, or enter your commute to see every crash hotspot along your route.
Map tiles blocked in this preview
This interactive map renders fully when deployed to GitHub Pages or opened locally. All crash data, markers, corridors, and tools are loaded — they just need a basemap.
username.github.io/repo-name
The Top 10 Crash Sites
Freeway interchanges and high-volume arterials dominate. Use the Metro dropdown on the map to switch between cities. Toggle "Per Vehicle" to see which intersections are most dangerous relative to how much traffic they carry.
The Calendar of Risk
Crash patterns shift by season, day, and hour. Late summer through October sees the highest volume, midweek days outpace weekends, and the evening commute is the most dangerous window across the metro.
Is the Metro Getting Safer?
Fatalities have trended down since the 2021 peak, but total crash volume keeps climbing.
One in Four Fatal Crashes Involves Impairment
Alcohol, marijuana, and other drugs were factors in 1,830 crashes across the five metro cities in 2024. While impairment accounts for about 6% of all crashes, it drives 26% of fatalities. Late-night hours are the most dangerous: between midnight and 3am, over 20% of all crashes involve a suspected impaired driver.
Speed Kills Disproportionately
Speed was a factor in 1,517 crashes across the metro in 2024, just 5% of the total, but it accounted for 30% of all fatalities. After dark, speed-related crashes spike sharply, mirroring the impaired driving curve. Aurora stands out: 42% of its traffic deaths involved speeding.
One in Four Drivers Flee the Scene
7,875 hit-and-run crashes across the metro in 2024 — 25.6% of all crashes. Denver’s rate is the worst at 30.7%. After midnight, over half of all Denver crashes are hit-and-runs. Nearly a third of pedestrian crashes involve a driver who fled.
Denver Promised Zero Deaths by 2030
In 2017, Denver adopted Vision Zero with a baseline of 51 fatalities and a goal of zero by 2030. Since then, fatalities have gone up, not down. The red zone shows the growing gap between the city's promise and reality.
The Most Vulnerable on Metro Streets
1,248 pedestrian crashes and 810 cyclist crashes across the metro in 2024. Over half of all crashes occurred away from intersections.
Crash Rates Across the Metro
65 crash intersections mapped across Denver, Aurora, Lakewood, Arvada, Westminster, Thornton, and unincorporated Adams/Arapahoe/Jefferson County. Use the Metro dropdown on the map to explore each city.
Where This Data Comes From
Every number on this page links back to a publicly available dataset.
CDOT Crash Data →
Highways Dataset →