Whipple Ridge 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 Whipple Ridge Road climb?

2.1 miles (3.4 km) at 9.9% on average, climbing 1,089 ft (332 m) from 253 ft to 1,342 ft. The steepest half kilometre averages 14%. That makes it a Category 2 climb.

Where does the climb start and finish?

It starts at 39.0641, -123.43729, where Whipple Ridge Road leaves Philo School Road, and tops out at Clow Creek Road at 39.08341, -123.43436.

Is Whipple Ridge 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.

• Craig Mill RoadCat 3 · 1.6 mi at 7% · 581 ft · starts 1.4 mi away
• Philo Greenwood Road near UkiahCat 2 · 3.8 mi at 6.8% · 1,378 ft · starts 2.9 mi away
• Peachland RoadCat 3 · 3.2 mi at 5.8% · 988 ft · starts 3.3 mi away
• Redwood Ridge RoadCat 3 · 1.5 mi at 8.7% · 696 ft · starts 4.1 mi away
• Deer Meadows RoadCat 2 · 2.2 mi at 10.6% · 1,220 ft · starts 4.2 mi away
• Signal Ridge RoadCat 2 · 4.6 mi at 6.1% · 1,493 ft · starts 4.3 mi away
• Mountain View Road near Point ArenaCat 2 · 4.0 mi at 8.2% · 1,739 ft · starts 4.8 mi away
• Mountain View Road near Point ArenaCat 3 · 2.3 mi at 5.5% · 682 ft · starts 4.9 mi away