Alderpoint Road Climb from Redwood Drive

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 from Redwood Drive climb?

7.8 miles (12.6 km) at 6.3% on average, climbing 2,595 ft (791 m) from 430 ft to 3,025 ft. The steepest half kilometre averages 15.2%. That makes it a Category 1 climb.

Where does the climb start and finish?

It starts at 40.10785, -123.79581, where Alderpoint Road leaves Redwood Drive, and tops out on the road at 40.10285, -123.69001.

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.

• Clark Road from Linda LaneCat 2 · 1.9 mi at 11.6% · 1,184 ft · starts 0.9 mi away
• Skyway RoadCat 2 · 2.3 mi at 10.4% · 1,273 ft · starts 1.1 mi away
• Old Briceland RoadCat 3 · 4.3 mi at 4.3% · 974 ft · starts 1.5 mi away
• Wood Ranch RoadCat 3 · 2.3 mi at 6.3% · 758 ft · starts 2.6 mi away
• Blue Rock RoadCat 3 · 1.7 mi at 9.2% · 823 ft · starts 2.6 mi away
• Sawmill RoadCat 3 · 2.3 mi at 6.9% · 850 ft · starts 2.8 mi away
• Red Rock RoadCat 3 · 2.5 mi at 7.7% · 1,007 ft · starts 2.9 mi away
• Sprowel Creek RoadCat 2 · 4.8 mi at 4.6% · 1,165 ft · starts 3.1 mi away