Sunnyside Drive Climb
- long (2.0 km)
- 1.2 mi
- long (2.0 km)
- of climbing (164 m)
- 538 ft
- of climbing (164 m)
- average grade
- 8.2%
- average grade
- steepest 500 m
- 11.5%
- steepest 500 m
Elevation profile
From 121 ft at the bottom to 659 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 Sunnyside Drive this week
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Is it safe to bike up Sunnyside Drive?
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 Sunnyside Drive
- How long and steep is the Sunnyside Drive climb?
- 1.2 miles (2.0 km) at 8.2% on average, climbing 538 ft (164 m) from 121 ft to 659 ft. The steepest half kilometre averages 11.5%. That makes it a Category 3 climb.
- Where does the climb start and finish?
- It starts at 38.51296, -122.93475, where Sunnyside Drive leaves McPeak Road, and tops out on the road at 38.51161, -122.94196.
- Is Sunnyside Drive 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
- Marigold LaneCat 3 · 0.7 mi at 13.9% · 538 ft · starts 0.3 mi away
- Mount Jackson Resort RoadCat 2 · 4.4 mi at 6.5% · 1,516 ft · starts 1.6 mi away
- Sweetwater Springs Road near WindsorCat 3 · 3.7 mi at 5.1% · 1,007 ft · starts 2.1 mi away
- Mount Jackson Lookout RoadCat 3 · 1.1 mi at 10.6% · 584 ft · starts 2.9 mi away
- Armstrong Woods RoadCat 2 · 5.5 mi at 4.6% · 1,332 ft · starts 3.6 mi away
- Sweetwater Springs Road near HealdsburgCat 2 · 3.4 mi at 6.4% · 1,142 ft · starts 3.6 mi away
- Gabes Rock RoadCat 3 · 1.2 mi at 9.5% · 620 ft · starts 3.8 mi away
- Old Cazadero Road near HealdsburgCat 3 · 4.4 mi at 4.3% · 1,014 ft · starts 4.6 mi away
Places to ride to nearby
Bike crash hotspots nearby
Found from OpenStreetMap roads and USGS 3DEP elevation; ranked on shape only. Category 3: 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.