Onaknoll Drive 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 Onaknoll Drive climb?

2.1 miles (3.3 km) at 7.1% on average, climbing 774 ft (236 m) from 1,516 ft to 2,290 ft. The steepest half kilometre averages 12.4%. That makes it a Category 3 climb.

Where does the climb start and finish?

It starts at 33.82354, -117.40604, where Onaknoll Drive leaves Ona Knoll Drive, and tops out on the road at 33.80369, -117.40005.

Is Onaknoll Drive 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.

• Ridgedale DriveCat 3 · 1.5 mi at 7.4% · 581 ft · starts 1.0 mi away
• Gavilan RoadCat 3 · 2.9 mi at 3.6% · 541 ft · starts 2.6 mi away
• Lakepointe Drive from Spring View CourtCat 3 · 1.4 mi at 8.3% · 620 ft · starts 4.0 mi away
• Van Buren BoulevardCat 3 · 3.6 mi at 3.2% · 604 ft · starts 5.4 mi away
• Cajalco RoadCat 3 · 4.5 mi at 3% · 702 ft · starts 5.8 mi away
• Bedford RoadHC · dirt · 6.1 mi at 8.6% · 2,756 ft · starts 5.9 mi away
• Indian Truck TrailCat 1 · dirt · 7.0 mi at 6.8% · 2,530 ft · starts 6.3 mi away
• La Sierra AvenueCat 3 · 4.6 mi at 3% · 722 ft · starts 6.8 mi away