West Line Street 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 West Line Street climb?

17 miles (27.0 km) at 5.5% on average, climbing 4,856 ft (1,480 m) from 4,285 ft to 9,140 ft. The steepest half kilometre averages 9.9%. That makes it a Hors catégorie climb.

Where does the climb start and finish?

It starts at 37.36131, -118.43369, where West Line Street leaves Grandview Drive, and tops out at Lake Sabrina Road at 37.21283, -118.61333.

Is West Line Street 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.

• Coyote Valley RoadHC · dirt · 11 mi at 8.5% · 5,164 ft · starts 1.2 mi away
• Bir RoadCat 3 · 2.4 mi at 6.6% · 830 ft · starts 1.7 mi away
• East Bishop Creek RoadCat 3 · 2.6 mi at 6.2% · 840 ft · starts 3.0 mi away
• Casa Diablo RoadHC · dirt · 20 mi at 3% · 3,241 ft · starts 4.2 mi away
• Buttermilk RoadHC · dirt · 8.6 mi at 6.1% · 2,759 ft · starts 4.9 mi away
• Silver Canyon RoadHC · dirt · 11 mi at 11.4% · 6,365 ft · starts 5.8 mi away
• Redding Canyon RoadCat 1 · dirt · 5.1 mi at 9.7% · 2,585 ft · starts 7.3 mi away
• Horton Creek RoadCat 3 · 1.7 mi at 6.3% · 577 ft · starts 8.1 mi away