Friday Ridge Road Climb from Trinity Highway
- long (12.7 km)
- 7.9 mi
- long (12.7 km)
- of climbing (847 m)
- 2,779 ft
- of climbing (847 m)
- average grade
- 6.7%
- average grade
- steepest 500 m
- 19.3%
- steepest 500 m
Elevation profile
From 591 ft at the bottom to 3,369 ft at the top. Grades are averaged over each half kilometre, from USGS elevation data, so short ramps can be steeper than they show.
Weather at the top of Friday Ridge Road this week
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Is it safe to bike up Friday Ridge Road?
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.
Common questions about Friday Ridge Road
- How long and steep is the Friday Ridge Road from Trinity Highway climb?
- 7.9 miles (12.7 km) at 6.7% on average, climbing 2,779 ft (847 m) from 591 ft to 3,369 ft. The steepest half kilometre averages 19.3%. That makes it a Hors catégorie climb.
- Where does the climb start and finish?
- It starts at 40.8881, -123.60446, where Friday Ridge Road leaves Trinity Highway, and tops out on the road at 40.87939, -123.68119.
- Is Friday Ridge 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.
Other climbs nearby
- Salyer Loop RoadCat 3 · 1.8 mi at 6.4% · 597 ft · starts 1.0 mi away
- Salyer-Mad River RoadHC · 11 mi at 4.9% · 2,887 ft · starts 1.2 mi away
- Campbell Ridge RoadCat 3 · 1.8 mi at 9.9% · 951 ft · starts 1.3 mi away
- Gray Creek Road from South Fork RoadCat 1 · dirt · 4.9 mi at 8.8% · 2,280 ft · starts 2.3 mi away
- South Fork Road near Blue LakeCat 3 · 2.1 mi at 4.7% · 528 ft · starts 3.7 mi away
- Huckleberry Creek RoadHC · dirt · 4.9 mi at 11.1% · 2,887 ft · starts 3.8 mi away
- Trinity Highway from Willow RoadCat 1 · 9.8 mi at 4.2% · 2,195 ft · starts 3.9 mi away
- South Fork Road near Blue LakeCat 3 · 3.4 mi at 3.1% · 558 ft · starts 4.0 mi away
Found from OpenStreetMap roads and USGS 3DEP elevation; ranked on shape only. Hors catégorie: 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. Crashes: bike crashes reported within 100 ft of the climb, 2021–2025, from the California Crash Reporting System (CCRS), counted only where the report has map coordinates. Weather: National Weather Service. Access from OpenStreetMap tags; obey posted signs. How the data works.