Sapphire Street Climb
- long (3.3 km)
- 2.0 mi
- long (3.3 km)
- of climbing (172 m)
- 564 ft
- of climbing (172 m)
- average grade
- 5.3%
- average grade
- steepest 500 m
- 6.5%
- steepest 500 m
Elevation profile
From 1,601 ft at the bottom to 2,165 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 Sapphire Street this week
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Is it safe to bike up Sapphire Street?
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. The records here are also incomplete: most reports along it are filed under Upland, where only 55% of reported bike crashes have a map location, so the numbers here are too low. What the records show: no bike crashes were reported along the climb from 2021–2025.
Common questions about Sapphire Street
- How long and steep is the Sapphire Street climb?
- 2.0 miles (3.3 km) at 5.3% on average, climbing 564 ft (172 m) from 1,601 ft to 2,165 ft. The steepest half kilometre averages 6.5%. That makes it a Category 3 climb.
- Where does the climb start and finish?
- It starts at 34.13264, -117.62521, where Sapphire Street leaves 19th Street, and tops out at Almond Street at 34.16201, -117.62553.
- Is Sapphire Street 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
- Beryl StreetCat 3 · 3.3 mi at 4.3% · 755 ft · starts 1.2 mi away
- Carnelian StreetCat 3 · 3.6 mi at 4.5% · 863 ft · starts 1.7 mi away
- Amethyst AvenueCat 3 · 2.8 mi at 5% · 738 ft · starts 1.7 mi away
- North Mountain AvenueCat 3 · 3.7 mi at 3.3% · 653 ft · starts 2.7 mi away
- Haven Avenue near Rancho CucamongaCat 2 · 3.3 mi at 7.5% · 1,322 ft · starts 2.8 mi away
- Hellman AvenueCat 3 · 4.5 mi at 3.5% · 823 ft · starts 2.9 mi away
- North Euclid Avenue from South Euclid Avenue near UplandCat 3 · 3.9 mi at 3.3% · 679 ft · starts 3.0 mi away
- North Euclid Avenue from South Euclid Avenue near UplandCat 3 · 4.6 mi at 4.1% · 997 ft · starts 3.1 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.