San Gabriel Canyon Road (SR-39)
- mapped
- 28.9 mi
- mapped
- motorcycle crashes, 2021–2025
- 140
- motorcycle crashes, 2021–2025
- serious or fatal
- 49
- serious or fatal
- fatal
- 7
- fatal
Is San Gabriel Canyon Road (SR-39) safe to ride on a motorcycle?
We don't rate roads as safe or unsafe: crash counts can't say how risky a road is, and popular riding roads have more crashes partly because more people ride them. What the records show: 140 motorcycle crashes were reported along its 28.9 mapped miles from 2021–2025, 49 of them serious or fatal (7 fatal). 73% involved no other vehicle. What to watch for: Heavy weekend traffic to the river, cars parked along the shoulder, and rockfall. The road beyond Crystal Lake has been closed for decades.
This week's weather
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How riders crash here
73% of crashes here involve only the motorcycle, usually running wide or losing grip in a corner. Enter corners slower, look through the bend, and watch for gravel, sand and diesel.
Common questions about San Gabriel Canyon Road (SR-39)
- What is San Gabriel Canyon Road (SR-39) like to ride?
- Canyon road from Azusa up the San Gabriel River toward Crystal Lake.
- How long is San Gabriel Canyon Road (SR-39)?
- About 28.9 miles as mapped in OpenStreetMap, for the stretch we cover.
- Is San Gabriel Canyon Road (SR-39) open?
- Check Caltrans QuickMap (quickmap.dot.ca.gov) for closures, chain controls and roadwork before you go. Mountain roads close for snow, rockslides and fire, and some sections close every winter.
Other riding roads nearby
Crashes: motorcycle crashes reported within 60 m of the road, 2021–2025, from the California Crash Reporting System (CCRS). Road: © OpenStreetMap contributors. Weather: National Weather Service. Distances to other roads are between their middles, in a straight line. How the data works.