Topanga Canyon Boulevard · SR 27
The canyon corridor from PCH through Topanga village to Mulholland Drive. Village traffic and roadworks interrupt the mountain sections.
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Repair and paving work can affect travel through Topanga. Check the work-zone restrictions before setting out. Check current access ↗ · Reviewed 2026-09-09
Road shape
- Length
- 11 mi
- Bends
- 56
- Switchbacks
- 14
- Bends per mile
- 5.1
- Turning per mile
- 553°
- Curviest rank
- 43of 94
Measured from the OpenStreetMap centreline at a 20 m sampling step — road shape only, not a safety or speed judgement. How bends are counted.
Elevation
- Total climb
- 1,930ft
- Climb per mile
- 175ft
- Highest point
- 1,497ft
- Steepest grade
- 7.3%
Sampled every 100 m from USGS 10 m elevation data, a public-domain federal dataset. Total climb counts vertical change in both directions, so it does not depend on which way you drive. How elevation is measured.
Speed limits
Varies
Unverified
Limits vary by section. Follow posted signs.
Limits vary by section. Follow posted signs.
Posted signs always govern. How speed evidence is handled.
Sources
Difficulty 2/3 (Winding) is our editorial rating of width, bends and sightlines; “Medium speed” describes character, not a target speed. Full method. Identified from:
- SR 27 Topanga Canyon Palisades repairs ↗
- “SR-27 pavement rehabilitation in Topanga Canyon restarts June 15, 2026” ↗
- OpenStreetMap road data ↗ (39 ways in this trace)
Reviewed 2026-09-09. The trace shows selected road sections, not a navigation route.