Alderpoint 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 Alderpoint Road climb?

9.8 miles (15.8 km) at 5.2% on average, climbing 2,680 ft (817 m) from 348 ft to 3,028 ft. The steepest half kilometre averages 11.6%. That makes it a Hors catégorie climb.

Where does the climb start and finish?

It starts at 40.17449, -123.59951, and tops out on the road at 40.10269, -123.68922.

Is Alderpoint 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.

• Alderpoint RoadCat 3 · 1.1 mi at 9.1% · 545 ft · starts 0.0 mi away
• Hoagland RoadCat 1 · 6.1 mi at 7.3% · 2,372 ft · starts 1.2 mi away
• Zenia Bluff RoadCat 1 · 8.4 mi at 5.1% · 2,264 ft · starts 2.2 mi away
• Ware Ranch RoadCat 2 · 3.3 mi at 10.1% · 1,745 ft · starts 3.0 mi away
• Stewart Ranch RoadCat 3 · 1.3 mi at 11.1% · 774 ft · starts 3.1 mi away
• Upper Willow RoadCat 3 · 1.0 mi at 15.5% · 814 ft · starts 3.1 mi away
• Alderpoint RoadCat 2 · 5.5 mi at 4.1% · 1,178 ft · starts 3.2 mi away
• Rancho Sequoia DriveCat 3 · 1.4 mi at 13.5% · 968 ft · starts 3.4 mi away