Lewiston Turnpike Road Climb from Deadwood Road
- long (9.8 km)
- 6.1 mi
- long (9.8 km)
- of climbing (659 m)
- 2,162 ft
- of climbing (659 m)
- average grade
- 6.7%
- average grade
- steepest 500 m
- 11.7%
- steepest 500 m
Elevation profile
From 1,808 ft at the bottom to 3,970 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 Lewiston Turnpike Road this week
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Is it safe to bike up Lewiston Turnpike 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 Lewiston Turnpike Road
- How long and steep is the Lewiston Turnpike Road from Deadwood Road climb?
- 6.1 miles (9.8 km) at 6.7% on average, climbing 2,162 ft (659 m) from 1,808 ft to 3,970 ft. The steepest half kilometre averages 11.7%. That makes it a Category 1 climb.
- Where does the climb start and finish?
- It starts at 40.70796, -122.80814, where Lewiston Turnpike Road leaves Deadwood Road, and tops out on the road at 40.6944, -122.74328.
- Is Lewiston Turnpike 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
- Deadwood Road from Lewiston Turnpike RoadCat 1 · dirt · 7.4 mi at 5.7% · 2,221 ft · starts 0.1 mi away
- Trinity Dam Boulevard from Rush Creek RoadCat 3 · 4.4 mi at 3.9% · 915 ft · starts 0.7 mi away
- Oak Ranch DriveCat 3 · 1.3 mi at 9.6% · 663 ft · starts 3.0 mi away
- Poker Bar RoadCat 3 · 2.4 mi at 4.8% · 610 ft · starts 4.4 mi away
- Hoadley Peaks RoadCat 3 · 1.6 mi at 6.6% · 577 ft · starts 4.4 mi away
- Trinity Dam Boulevard near Shasta LakeCat 2 · 5.6 mi at 3.8% · 1,138 ft · starts 4.7 mi away
- Union Hill RoadCat 3 · 1.7 mi at 8.2% · 735 ft · starts 5.7 mi away
- East County Line Road from Eureka WayCat 2 · 3.4 mi at 10% · 1,775 ft · starts 6.3 mi away
Places to ride to nearby
Found from OpenStreetMap roads and USGS 3DEP elevation; ranked on shape only. Category 1: 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.