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Mount Stirling Road

WAUnclassified road30.2 km68 segments
2.4Sports
7.1Safety
30.2 kmTotal length
68Segments
68Grey spot segments
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Mount Stirling Road is a 30 km sealed road in Western Australia, Australia. It scores 4.5/10 for motorcycles with straight corners and rough surface.

Map showing location of Mount Stirling Road

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Vehicle scores
2.4/10
SPTSportsSealed roads, curviness, mountain passes
4.5/10
MOTMotoTight bends, switchbacks, technical roads
4.0/10
EVEVSmooth surface, sealed roads, range-friendly
4.4/10
4WD4WDGravel access, off-road suitability
2.6/10
VANCaravanSmooth sealed, gentle grades, no steep passes
Segment quality distribution
Sports score - 68 segments
Excellent (8+)1%Good (6-8)13%Fair (4-6)28%Poor (<4)57%

Sports score IQR: 2.2 - 5.3

Surface
Surface coverage
Sealed41%Unsealed59%
Score breakdown
Median component scores across all segments
Surface
3.0
Median surface quality. Smooth sealed asphalt scores 10. Chipseal 8. Gravel 5.
Curviness
0.0
Median curviness. Higher scores mean more bends per kilometre.
Speed
4.0
Speed limit suitability. Sweet spot is 60-110 km/h.
Road classUnclassified road
8.0
Road classification. Motorways score zero. Tertiary roads score 9.
Traffic
9.0
Estimated traffic density. Lower traffic = higher score.
Elevation
4.0
Elevation change per kilometre. More climbing = higher score.
Road intel
Grey spots68 of 68 segments
Segments where curvature is tighter than the posted speed limit. Geometry alone flags these as higher risk, no crash history required.
Wet riskModerate
Average wet sensitivity across segments, based on surface, drainage, gradient and local rainfall.
Night riskPresent
Visibility at night across the road, weighted by lighting, tree canopy density and curves.
Wind exposureModerate
Average wind exposure across segments, based on measured wind speed, terrain and shelter. Relevant for motorcycles and caravans.
Sun glarePresent
East-west segments exposed to sunrise and sunset glare, adjusted for tree cover.
Crash history
Aggregated across all 68 segments
68
Grey spots

Crash record linkage not yet available for WA. Grey spots are segments where curvature geometry mismatches the posted speed limit - these are flagged regardless of crash history.

Road environment
Geometry and climate-derived risk indicators
Wet road exposure42%
Night driving risk40%
Wind exposure48%
Sun glare risk71%
Wildlife strike risk11%

Risk values derived from road geometry, orientation, weather station data, and satellite canopy cover. 0 = minimal risk, 1 = maximum risk.

Segments
Top 68 segments by sports score
IDSurfaceLengthSportsMotoEV
#98845794Asphalt0.44 km8.68.58.4#98781386Asphalt0.36 km7.67.57.5#98845804Asphalt0.60 km7.57.47.4#98845809Asphalt0.28 km6.96.87.0#98845799Asphalt0.50 km6.96.76.9#98845805Asphalt0.50 km6.86.66.7#98845810Asphalt0.21 km6.76.67.0#98845808Asphalt0.43 km6.46.26.5#98781393Asphalt0.40 km6.46.26.7#98845793Asphalt0.04 km6.46.06.8#98781389Asphalt0.43 km5.95.76.2#98781387Asphalt0.40 km5.95.76.1#98781388Asphalt0.41 km5.95.76.3#98781392Asphalt0.41 km5.85.66.0#116178223Asphalt0.43 km5.65.35.9#98781391Asphalt0.41 km5.45.15.7#98781390Asphalt0.44 km5.35.15.7#98781394Asphalt0.49 km5.35.05.9#98845796Asphalt0.56 km5.25.05.8#116178224Asphalt0.22 km5.14.85.5#98845801Asphalt0.36 km5.04.75.4#98845797Asphalt0.62 km5.04.75.4#98845802Asphalt0.50 km5.04.75.4#98845806Asphalt0.50 km4.84.55.1#98845800Asphalt0.50 km4.84.55.1#98845803Asphalt0.39 km4.84.55.1#98845798Asphalt0.36 km4.84.55.1#98845795Asphalt0.50 km4.84.55.1#98845807Asphalt0.32 km4.84.55.1#98782200Unpaved0.37 km2.46.04.0#98782229Unpaved0.50 km2.46.04.0#98782218Unpaved0.65 km2.44.84.0#98782220Unpaved0.14 km2.45.34.0#98782221Unpaved0.08 km2.44.14.0#98782223Unpaved0.65 km2.45.64.0#98782225Unpaved0.65 km2.45.14.0#98782195Unpaved0.50 km2.46.04.0#98782219Unpaved0.29 km2.44.74.0#98782227Unpaved0.50 km2.45.54.0#98782226Unpaved0.20 km2.45.64.0#98782228Unpaved0.50 km2.23.53.8#98782194Unpaved0.50 km2.23.53.8#98782205Unpaved0.50 km2.23.53.8#98782207Unpaved0.55 km2.23.53.8#98782209Unpaved0.50 km2.23.53.8#98782211Unpaved0.47 km2.23.53.8#98782222Unpaved0.06 km2.23.53.8#98782224Unpaved0.50 km2.23.53.8#98782197Unpaved0.50 km2.23.53.8#98782192Unpaved0.50 km2.23.53.8#98782191Unpaved0.50 km2.23.53.8#98782201Unpaved0.50 km2.23.53.8#98782193Unpaved0.50 km2.23.53.8#98782199Unpaved0.50 km2.23.53.8#98782203Unpaved0.50 km2.13.33.5#98782202Unpaved0.50 km2.13.33.5#98782212Unpaved0.50 km2.13.33.5#98782196Unpaved0.50 km2.13.33.5#98782210Unpaved0.62 km2.13.33.5#98782208Unpaved0.50 km2.13.33.5#98782204Unpaved0.40 km2.13.33.5#98782206Unpaved0.50 km2.13.33.5#98782217Unpaved0.50 km2.13.33.5#98782216Unpaved0.50 km2.13.33.5#98782215Unpaved0.55 km2.13.33.5#98782214Unpaved0.50 km2.13.33.5#98782198Unpaved0.50 km2.13.33.5#98782213Unpaved0.50 km2.13.33.5
API reference
Road aggregate data via the Contour API
GET/api/v1/roads/mount-stirling-road-waRoad aggregate - scores, stats, risk profile, activity, segment list
GET/api/v1/roads/search?q=Mount%20Stirling%20Road&state=WASearch roads by name

Councils & Government

This road is part of WA's road network. Contour scores every road in Australia for surface condition, curviness, grey spot classification, and 4WD track passability. If your organisation manages this road or promotes tourism in the region, this data is available via API.

Enquire about council data access →
Frequently asked questions
How long is Mount Stirling Road?+

Mount Stirling Road is approximately 30 km long. At typical touring speeds, expect around 1 hour of driving end to end, excluding stops.

Is Mount Stirling Road sealed?+

Yes. Mount Stirling Road is fully sealed for its entire length.

Is Mount Stirling Road good for motorcycles?+

It is passable. Mount Stirling Road scores 4.5/10 for motorcycles. Consider it a connector rather than a destination ride.

Can I drive Mount Stirling Road in a caravan?+

Not recommended. Mount Stirling Road scores 2.6/10 for caravans due to geometry, surface or gradient. Consider an alternative route if towing.

Are there any dangerous sections on Mount Stirling Road?+

Contour has identified 68 grey spots on Mount Stirling Road - sections where the road geometry does not match the posted speed limit. Take extra care in wet or low-visibility conditions.

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Road data last updated: 24 April 2026. Scores are based on road geometry, surface, and traffic data. Always drive to conditions and follow local road rules.

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