B-Line 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 B-Line climb?

2.7 miles (4.4 km) at 4.2% on average, climbing 604 ft (184 m) from 915 ft to 1,519 ft. The steepest half kilometre averages 9.8%. That makes it a Category 3 climb.

Where does the climb start and finish?

It starts at 41.40097, -123.98462, and tops out at Cal-Barrel Road at 41.37841, -123.98925.

Is B-Line 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.

• Redwood Highway near TrinidadCat 3 · 2.6 mi at 7% · 955 ft · starts 3.0 mi away
• Redwood Highway near TrinidadCat 2 · 5.7 mi at 4.9% · 1,480 ft · starts 5.3 mi away
• Johnson Road near TrinidadCat 2 · 5.2 mi at 7.2% · 1,988 ft · starts 7.2 mi away
• Bald Hills Road near TrinidadCat 1 · 9.6 mi at 4.8% · 2,431 ft · starts 7.6 mi away
• Orick Hill LaneCat 3 · 0.9 mi at 11.6% · 528 ft · starts 8.1 mi away
• Johnson Road near TrinidadCat 3 · 2.8 mi at 5.7% · 846 ft · starts 8.5 mi away
• South Red Mountain RoadCat 1 · dirt · 5.3 mi at 8% · 2,228 ft · starts 9.1 mi away
• Hancorne Ranch Road near TrinidadCat 2 · 3.6 mi at 8.8% · 1,690 ft · starts 9.2 mi away