North Harbor Boulevard Climb
- long (3.6 km)
- 2.3 mi
- long (3.6 km)
- of climbing (205 m)
- 673 ft
- of climbing (205 m)
- average grade
- 5.6%
- average grade
- steepest 500 m
- 13.5%
- steepest 500 m
Elevation profile
From 331 ft at the bottom to 1,004 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 North Harbor Boulevard this week
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Is it safe to bike up North Harbor Boulevard?
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 North Harbor Boulevard
- How long and steep is the North Harbor Boulevard climb?
- 2.3 miles (3.6 km) at 5.6% on average, climbing 673 ft (205 m) from 331 ft to 1,004 ft. The steepest half kilometre averages 13.5%. That makes it a Category 3 climb.
- Where does the climb start and finish?
- It starts at 33.93261, -117.93315, where North Harbor Boulevard leaves East La Habra Boulevard, and tops out at Vantage Pointe Drive at 33.95991, -117.91709.
- Is North Harbor Boulevard 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
- Punta del Este DriveCat 3 · 1.7 mi at 7.8% · 702 ft · starts 4.4 mi away
- Colima RoadCat 3 · 2.3 mi at 4.8% · 600 ft · starts 4.4 mi away
- East Oak Canyon DriveCat 3 · 1.1 mi at 9.5% · 531 ft · starts 5.8 mi away
- Turnbull Canyon Road from Shadybend DriveCat 3 · 3.6 mi at 4.3% · 827 ft · starts 6.1 mi away
- Lemon AvenueCat 3 · 2.4 mi at 5.1% · 656 ft · starts 7.0 mi away
- Turnbull Canyon Road from Beverly BoulevardCat 3 · 3.7 mi at 4.5% · 883 ft · starts 7.9 mi away
- Weir Canyon RoadCat 3 · 2.6 mi at 4.1% · 571 ft · starts 11 mi away
- Eucalyptus AvenueCat 3 · 2.7 mi at 4% · 568 ft · starts 12 mi away
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.