Upper Alligator Road

QLDResidential road4.6 km10 segments

6.1Sports

4.6 kmTotal length

10Segments

2Recorded crashes

8Grey spot segments

Upper Alligator Road is a 5 km unsealed residential street in Queensland, Australia. It scores 6.9/10 for 4WDs with highly technical corners and rough surface.

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Vehicle scores

6.1/10

SPTSportsSealed roads, curviness, mountain passes

6.4/10

MOTMotoTight bends, switchbacks, technical roads

5.9/10

EVEVSmooth surface, sealed roads, range-friendly

6.9/10

4WD4WDGravel access, off-road suitability

5.3/10

VANCaravanSmooth sealed, gentle grades, no steep passes

Segment quality distribution

Sports score - 10 segments

Good (6-8)70%Fair (4-6)20%Poor (<4)10%

Sports score IQR: 6.0 - 6.6

Surface

Surface coverage

Unsealed100%

Score breakdown

Median component scores across all segments

Surface

3.5

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

Curviness

10.0

Median curviness. Higher scores mean more bends per kilometre.

Speed

4.0

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

Road classResidential road

3.0

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

Traffic

7.0

Estimated traffic density. Lower traffic = higher score.

Elevation

7.0

Elevation change per kilometre. More climbing = higher score.

Crash history

Aggregated across all 10 segments· 24 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

50%

Night crashes

Crashes that occurred after dark

Based on 24 years of crash records linked to road geometry. Crash breakdown (night, wet, weekends): VIC data 2012-2024. Other states show aggregate counts only.

Road roughness

NAASRA roughness index - median across segments

3.27IRI m/km

Coverage: 10% of segments surveyed. Source: Queensland Department of Transport and Main Roads.

Segments

Top 10 segments by sports score

IDSurfaceLengthSportsMotoEV

#96491032-0.50 km6.67.06.5 #96491031-0.50 km6.67.06.5 #96491033-0.50 km6.67.06.5 #96491030-0.50 km6.67.06.5 #96491034-0.50 km6.16.45.9 #96491028-0.50 km6.16.45.9 #96491029-0.50 km6.16.45.9 #96491027-0.50 km6.06.25.6 #96491035-0.50 km5.96.25.8 #96491036-0.06 km3.13.13.2

API reference

Road aggregate data via the Contour API

GET/api/v1/roads/upper-alligator-road-qldRoad aggregate - scores, stats, risk profile, activity, segment list

GET/api/v1/roads/search?q=Upper%20Alligator%20Road&state=QLDSearch roads by name

Councils & Government

This road is part of QLD'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.

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Frequently asked questions

How long is Upper Alligator Road?+

Upper Alligator Road is approximately 5 km long. At typical touring speeds, expect around 1 hour of driving end to end, excluding stops.

Is Upper Alligator Road sealed?+

No. Upper Alligator Road is unsealed for its entire scored length. A vehicle suited to gravel or dirt is recommended.

Is Upper Alligator Road good for motorcycles?+

It rates well. Upper Alligator Road scores 6.4/10 for motorcycles, with enough character to be worth the trip for most riders.

Can I drive Upper Alligator Road in a caravan?+

With care. Upper Alligator Road scores 5.3/10 for caravans. Some sections may be tight or rough for a heavy tow.

Is Upper Alligator Road suitable for a 4WD?+

Yes. Upper Alligator Road scores 6.9/10 for 4WDs, with the right mix of surface and terrain character to be worth the trip.

Are there any dangerous sections on Upper Alligator Road?+

Contour has identified 8 grey spots on Upper Alligator 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: 16 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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