Warrington Road Climb
- long (2.6 km)
- 1.6 mi
- long (2.6 km)
- of climbing (247 m)
- 810 ft
- of climbing (247 m)
- average grade
- 9.4%
- average grade
- steepest 500 m
- 15.1%
- steepest 500 m
Elevation profile
From 174 ft at the bottom to 984 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 Warrington Road this week
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Is it safe to bike up Warrington 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 Warrington Road
- How long and steep is the Warrington Road climb?
- 1.6 miles (2.6 km) at 9.4% on average, climbing 810 ft (247 m) from 174 ft to 984 ft. The steepest half kilometre averages 15.1%. That makes it a Category 3 climb.
- Where does the climb start and finish?
- It starts at 38.38056, -122.68335, where Warrington Road leaves Petaluma Hill Road, and ends where the road ends at 38.38445, -122.66596.
- Is Warrington 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
- Crane Canyon RoadCat 3 · 1.6 mi at 6.8% · 568 ft · starts 1.6 mi away
- Sonoma Mountain Road from Batesole DriveCat 3 · 4.2 mi at 3.1% · 676 ft · starts 3.1 mi away
- Lichau RoadCat 2 · 3.8 mi at 7.1% · 1,421 ft · starts 3.6 mi away
- Los Alamos Road from Melita RoadCat 2 · 4.0 mi at 6.5% · 1,381 ft · starts 5.8 mi away
- White Oak DriveCat 3 · 1.7 mi at 6.4% · 587 ft · starts 5.9 mi away
- Calistoga Road from Firestone PlaceCat 3 · 2.8 mi at 4.3% · 643 ft · starts 5.9 mi away
- Sonoma Mtn RoadCat 3 · 1.0 mi at 12.7% · 669 ft · starts 6.0 mi away
- Fountaingrove Parkway from Montecito BoulevardCat 3 · 2.1 mi at 5.6% · 627 ft · starts 6.3 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.