Colima Road Climb

We don't rate roads as safe or unsafe: crash counts can't say how risky a ride is, and roads people like to ride draw more riders, so they see more crashes. What the records show: no bike crashes were reported along the climb from 2021–2025.

How long and steep is the Colima Road climb?

2.3 miles (3.8 km) at 4.8% on average, climbing 600 ft (183 m) from 233 ft to 833 ft. The steepest half kilometre averages 12.7%. That makes it a Category 3 climb.

Where does the climb start and finish?

It starts at 33.94589, -118.00885, where Colima Road leaves Hayward Street, and tops out on the road at 33.97251, -117.98929.

Is Colima Road paved?

Yes, by its OpenStreetMap tags.

How is the category worked out?

From the climb's shape only: length in metres × average grade (%) of 16,000 or more for Cat 3, 32,000 for Cat 2, 64,000 for Cat 1 and 80,000 for HC. It describes how hard the climb is, not traffic or crashes.

Where does this data come from?

The climb is found from OpenStreetMap roads and USGS 3DEP elevation (every climb, not a list of famous ones). Access is from OpenStreetMap tags; gates and closures change, so obey posted signs. Crash counts are police reports in the California Crash Reporting System (CCRS) on data.ca.gov, counted where their map location is within 100 ft of the climb. The forecast is from the National Weather Service.

• Turnbull Canyon Road from Beverly BoulevardCat 3 · 3.7 mi at 4.5% · 883 ft · starts 4.0 mi away
• East Oak Canyon DriveCat 3 · 1.1 mi at 9.5% · 531 ft · starts 4.0 mi away
• North Harbor BoulevardCat 3 · 2.3 mi at 5.6% · 673 ft · starts 4.4 mi away
• Punta del Este DriveCat 3 · 1.7 mi at 7.8% · 702 ft · starts 4.5 mi away
• Turnbull Canyon Road from Shadybend DriveCat 3 · 3.6 mi at 4.3% · 827 ft · starts 5.0 mi away
• Lemon AvenueCat 3 · 2.4 mi at 5.1% · 656 ft · starts 9.6 mi away
• Hastings Ranch DriveCat 3 · 1.8 mi at 6.4% · 591 ft · starts 15 mi away
• Sierra Madre Villa AvenueCat 3 · 2.0 mi at 5.9% · 617 ft · starts 15 mi away