Janesville-Grade Climb
- long (8.1 km)
- 5.0 mi
- long (8.1 km)
- of climbing (577 m)
- 1,893 ft
- of climbing (577 m)
- average grade
- 7.1%
- average grade
- steepest 500 m
- 14%
- steepest 500 m
Elevation profile
From 4,167 ft at the bottom to 6,060 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 Janesville-Grade this week
Loading forecast…
Is it safe to bike up Janesville-Grade?
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 Janesville-Grade
- How long and steep is the Janesville-Grade climb?
- 5.0 miles (8.1 km) at 7.1% on average, climbing 1,893 ft (577 m) from 4,167 ft to 6,060 ft. The steepest half kilometre averages 14%. That makes it a Category 2 climb.
- Where does the climb start and finish?
- It starts at 40.29007, -120.50173, where Janesville-Grade leaves Main Street, and tops out on the road at 40.2405, -120.51678.
- Is Janesville-Grade 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
- Wray RoadCat 3 · 1.1 mi at 9.4% · 531 ft · starts 1.2 mi away
- Indians Road from Elysian Valley RoadCat 3 · 2.7 mi at 5.4% · 784 ft · starts 4.0 mi away
- Thunder Mountain RoadCat 3 · 2.0 mi at 7.2% · 774 ft · starts 5.2 mi away
- Diamond Mountain Motorway near SusanvilleCat 3 · 1.8 mi at 7.1% · 689 ft · starts 6.0 mi away
- Shane LaneCat 3 · 0.7 mi at 16.1% · 581 ft · starts 7.8 mi away
- Rice Canyon Road from Bible RoadCat 2 · 6.4 mi at 3.2% · 1,093 ft · starts 7.9 mi away
- Pierce Creek Motorway near SusanvilleCat 2 · 4.3 mi at 5.8% · 1,325 ft · starts 8.8 mi away
- Pierce Creek Motorway near SusanvilleCat 3 · 2.2 mi at 6% · 712 ft · starts 8.9 mi away
Found from OpenStreetMap roads and USGS 3DEP elevation; ranked on shape only. Category 2: 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.