Redwood Road Climb from 35th Avenue

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 Redwood Road from 35th Avenue climb?

1.6 miles (2.6 km) at 7.1% on average, climbing 600 ft (183 m) from 384 ft to 984 ft. The steepest half kilometre averages 12.2%. That makes it a Category 3 climb.

Where does the climb start and finish?

It starts at 37.79896, -122.19181, where Redwood Road leaves 35th Avenue, and tops out at Skyline Boulevard at 37.79939, -122.17087.

Is Redwood 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.

• Castle DriveCat 3 · 1.1 mi at 10.5% · 600 ft · starts 1.4 mi away
• Ascot DriveCat 3 · 1.5 mi at 10.1% · 791 ft · starts 1.5 mi away
• Shepherd Canyon RoadCat 3 · 1.8 mi at 6% · 577 ft · starts 1.9 mi away
• Snake RoadCat 3 · 1.9 mi at 6.7% · 659 ft · starts 2.0 mi away
• Colton BoulevardCat 3 · 1.3 mi at 8.7% · 614 ft · starts 2.4 mi away
• Thornhill DriveCat 3 · 1.8 mi at 6.6% · 614 ft · starts 2.7 mi away
• Pinehurst RoadCat 3 · 4.0 mi at 3.5% · 741 ft · starts 2.8 mi away
• Campus DriveCat 3 · 1.3 mi at 9.2% · 633 ft · starts 3.1 mi away