Millbrook Road

WATertiary road17.3 km36 segments

3.9Sports

7.5Safety

17.3 kmTotal length

36Segments

2Recorded crashes

34Grey spot segments

Millbrook Road is a 17 km sealed tertiary route in Western Australia, Australia. It scores 6.9/10 for EVs with straight corners and excellent surface.

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Vehicle scores

3.9/10

SPTSportsSealed roads, curviness, mountain passes

5.8/10

MOTMotoTight bends, switchbacks, technical roads

6.9/10

EVEVSmooth surface, sealed roads, range-friendly

5.4/10

4WD4WDGravel access, off-road suitability

5.1/10

VANCaravanSmooth sealed, gentle grades, no steep passes

Segment quality distribution

Sports score - 36 segments

Fair (4-6)50%Poor (<4)50%

Sports score IQR: 3.3 - 5.1

Surface

Surface coverage

Sealed93%Unsealed7%

Score breakdown

Median component scores across all segments

Surface

10.0

Median surface quality. Smooth sealed asphalt scores 10. Chipseal 8. Gravel 5.

Curviness

1.0

Median curviness. Higher scores mean more bends per kilometre.

Speed

5.5

Speed limit suitability. Sweet spot is 60-110 km/h.

Road classTertiary road

9.0

Road classification. Motorways score zero. Tertiary roads score 9.

Traffic

9.0

Estimated traffic density. Lower traffic = higher score.

Elevation

7.0

Elevation change per kilometre. More climbing = higher score.

Road intel

Grey spots34 of 36 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 36 segments· 5 years of data

Total crashes

Fatalities

Serious injuries

Grey spots

Source: State crash data linked to road geometry. Grey spots are segments where curvature geometry mismatches the posted speed limit.

When is this road risky?

Crash conditions - share of recorded crashes by circumstance

Wet road crashes

Crashes that occurred in wet conditions

Night crashes

Crashes that occurred after dark

Based on 5 years of crash records linked to road geometry. Crash breakdown (night, wet, weekends): VIC data 2012-2024. Other states show aggregate counts only.

Road environment

Geometry and climate-derived risk indicators

Wet road exposure39%

Night driving risk52%

Wind exposure55%

Sun glare risk80%

Wildlife strike risk13%

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

Segments

Top 40 segments by sports score

IDSurfaceLengthSportsMotoEV

#98758430-0.64 km7.37.67.2 #98758432-0.48 km6.77.06.4 #98758434-0.12 km5.65.85.7 #98758435-0.12 km5.65.85.7 #98696319Asphalt0.65 km5.48.28.9 #98696321Asphalt0.56 km5.48.28.9 #98696322Asphalt0.48 km5.38.28.9 #98696314Asphalt0.65 km5.38.18.8 #98696316Asphalt0.65 km5.38.18.8 #98696311Asphalt0.65 km5.38.18.6 #98696318Asphalt0.31 km5.28.08.7 #98696326Asphalt0.40 km5.17.98.6 #98696329Asphalt0.38 km5.17.98.6 #98696313Asphalt0.65 km5.17.88.4 #98696328Asphalt0.50 km5.17.88.5 #98696325Asphalt0.48 km5.17.88.5 #98696323Asphalt0.50 km4.77.27.8 #98696315Asphalt0.65 km4.66.87.6 #98696301Asphalt0.65 km4.46.77.7 #98696302Asphalt0.50 km4.36.57.4 #98696295Asphalt0.50 km4.26.47.3 #98696317Asphalt0.22 km4.05.97.1 #98696312Asphalt0.64 km3.95.66.7 #98696320Asphalt0.05 km3.95.66.7 #98696294Asphalt0.50 km3.85.76.7 #98696324Asphalt0.29 km3.55.26.2 #98696327Asphalt0.29 km3.55.26.2 #98696297Asphalt0.39 km3.35.06.1 #98696309Asphalt0.50 km3.35.06.1 #98696306Asphalt0.50 km3.35.06.1 #98696305Asphalt0.50 km3.35.06.1 #98696298Asphalt0.50 km3.35.06.1 #98696299Asphalt0.50 km3.24.75.7 #98696310Asphalt0.50 km3.24.75.7 #98696308Asphalt0.31 km3.24.75.7 #98696307Asphalt0.50 km3.24.75.7 #98696303Asphalt0.50 km3.24.75.7 #98696300Asphalt0.50 km3.24.75.7 #98696296Asphalt0.50 km3.24.75.7 #98696304Asphalt0.50 km3.14.55.4

API reference

Road aggregate data via the Contour API

GET/api/v1/roads/millbrook-road-waRoad aggregate - scores, stats, risk profile, activity, segment list

GET/api/v1/roads/search?q=Millbrook%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 Millbrook Road?+

Millbrook Road is approximately 17 km long. At typical touring speeds, expect around 1 hour of driving end to end, excluding stops.

Is Millbrook Road sealed?+

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

Is Millbrook Road good for motorcycles?+

It is passable. Millbrook Road scores 5.8/10 for motorcycles. Consider it a connector rather than a destination ride.

Can I drive Millbrook Road in a caravan?+

With care. Millbrook Road scores 5.1/10 for caravans. Some sections may be tight or rough for a heavy tow.

Is Millbrook Road good for an EV?+

Yes. Millbrook Road scores 6.9/10 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 Millbrook Road?+

Contour has identified 34 grey spots on Millbrook 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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