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Stoneman Road

WAUnclassified road11.7 km24 segments
3.8Sports
11.7 kmTotal length
24Segments
24Grey spot segments
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Stoneman Road is a 12 km sealed road in Western Australia, Australia. It scores 6.6/10 for EVs with straight corners and excellent surface.

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Vehicle scores
3.8/10
SPTSportsSealed roads, curviness, mountain passes
5.6/10
MOTMotoTight bends, switchbacks, technical roads
6.6/10
EVEVSmooth surface, sealed roads, range-friendly
5.0/10
4WD4WDGravel access, off-road suitability
5.0/10
VANCaravanSmooth sealed, gentle grades, no steep passes
Segment quality distribution
Sports score - 24 segments
Fair (4-6)38%Poor (<4)63%

Sports score IQR: 3.8 - 4.2

Surface
Surface coverage
Sealed100%
Score breakdown
Median component scores across all segments
Surface
10.0
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
10.0
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.
Crash history
Aggregated across all 24 segments
24
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
7.3/10 safety score - higher is safer
Wet road exposure38%
Night driving risk54%
Wind exposure49%
Sun glare risk85%
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 24 segments by sports score
IDSurfaceLengthSportsMotoEV
#99213357Asphalt0.54 km5.07.78.3#99213358Asphalt0.32 km5.07.78.3#99213348Asphalt0.65 km4.97.58.2#99213349Asphalt0.50 km4.67.07.8#99213340Asphalt0.50 km4.36.37.2#99213354Asphalt0.50 km4.36.37.1#99213350Asphalt0.65 km4.26.37.0#99213355Asphalt0.50 km4.26.27.0#99213346Asphalt0.22 km4.05.96.9#99213341Asphalt0.59 km4.05.87.0#99213344Asphalt0.45 km3.85.66.6#99213345Asphalt0.22 km3.85.66.6#99213335Asphalt0.50 km3.85.66.6#99213336Asphalt0.50 km3.85.66.6#99213337Asphalt0.50 km3.85.66.6#99213338Asphalt0.50 km3.85.66.6#99213342Asphalt0.50 km3.85.66.6#99213343Asphalt0.56 km3.85.66.6#99213352Asphalt0.58 km3.75.46.3#99213353Asphalt0.50 km3.75.46.3#99213351Asphalt0.44 km3.75.46.3#99213356Asphalt0.45 km3.75.46.3#99213347Asphalt0.50 km3.75.46.3#99213339Asphalt0.50 km3.75.46.3
API reference
Road aggregate data via the Contour API
GET/api/v1/roads/stoneman-road-waRoad aggregate - scores, stats, risk profile, activity, segment list
GET/api/v1/roads/search?q=Stoneman%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 Stoneman Road?+

Stoneman Road is approximately 12 km long. At typical touring speeds, expect around 1 hour of driving end to end, excluding stops.

Is Stoneman Road sealed?+

Yes. Stoneman Road is fully sealed for its entire length.

Is Stoneman Road good for motorcycles?+

It is passable. Stoneman Road scores 5.6/10 for motorcycles. Consider it a connector rather than a destination ride.

Can I drive Stoneman Road in a caravan?+

With care. Stoneman Road scores 5.0/10 for caravans. Some sections may be tight or rough for a heavy tow.

Is Stoneman Road good for an EV?+

Yes. Stoneman Road scores 6.6/10 for EVs. Regenerative braking on any elevation changes and smooth throttle control on the corners will both feel at home here.

Are there any dangerous sections on Stoneman Road?+

Contour has identified 24 grey spots on Stoneman 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: 23 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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