Smiley Boulevard Climb
- long (5.7 km)
- 3.6 mi
- long (5.7 km)
- of climbing (336 m)
- 1,102 ft
- of climbing (336 m)
- average grade
- 5.9%
- average grade
- steepest 500 m
- 10.6%
- steepest 500 m
Elevation profile
From 1,476 ft at the bottom to 2,579 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 Smiley Boulevard this week
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Is it safe to bike up Smiley 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. The records here are also incomplete: most reports along it are filed under Redlands, where only 4% 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 Smiley Boulevard
- How long and steep is the Smiley Boulevard climb?
- 3.6 miles (5.7 km) at 5.9% on average, climbing 1,102 ft (336 m) from 1,476 ft to 2,579 ft. The steepest half kilometre averages 10.6%. That makes it a Category 2 climb.
- Where does the climb start and finish?
- It starts at 34.01219, -117.18245, where Smiley Boulevard leaves San Timoteo Canyon Road, and tops out at Deerview Drive at 33.97771, -117.18587.
- Is Smiley Boulevard paved?
- Mostly: OpenStreetMap tags 75% of the climb as paved, and the rest as dirt or gravel.
- 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
- Detective Jeremiah MacKay Memorial HighwayHC · 26 mi at 3.7% · 5,118 ft · starts 4.3 mi away
- Avenue ECat 3 · 4.4 mi at 4.3% · 997 ft · starts 5.6 mi away
- Wildwood Canyon RoadCat 2 · 6.6 mi at 4.2% · 1,460 ft · starts 6.1 mi away
- Oak Glen Road from Yucaipa BoulevardCat 1 · 9.0 mi at 5.5% · 2,615 ft · starts 6.5 mi away
- Reche Canyon RoadCat 2 · 7.7 mi at 3.4% · 1,394 ft · starts 6.7 mi away
- Church StreetCat 3 · 1.8 mi at 5.7% · 535 ft · starts 6.8 mi away
- Cloverhill DriveCat 3 · 1.9 mi at 6.8% · 669 ft · starts 7.1 mi away
- Carter StreetCat 3 · 2.6 mi at 6% · 814 ft · starts 9.0 mi away
Bike crash hotspots nearby
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.