Tunkalilla Road

SAUnclassified road5.9 km13 segments

2.4Sports

6.3Safety

5.9 kmTotal length

13Segments

2Recorded crashes

11Grey spot segments

Tunkalilla Road is a 6 km unsealed road in South Australia, Australia. It scores 8.2/10 for 4WDs with highly technical corners and rough surface.

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Vehicle scores

2.4/10

SPTSportsSealed roads, curviness, mountain passes

6.0/10

MOTMotoTight bends, switchbacks, technical roads

4.0/10

EVEVSmooth surface, sealed roads, range-friendly

8.2/10

4WD4WDGravel access, off-road suitability

2.6/10

VANCaravanSmooth sealed, gentle grades, no steep passes

Segment quality distribution

Sports score - 13 segments

Poor (<4)100%

Sports score IQR: 2.4 - 2.4

Surface

Surface coverage

Unsealed100%

Score breakdown

Median component scores across all segments

Surface

3.0

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

Curviness

8.0

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

7.0

Elevation change per kilometre. More climbing = higher score.

Crash history

Aggregated across all 13 segments· 10 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 10 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

6.3/10 safety score - higher is safer

Wet road exposure74%

Night driving risk72%

Wind exposure57%

Sun glare risk52%

Wildlife strike risk12%

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

Segments

Top 13 segments by sports score

IDSurfaceLengthSportsMotoEV

#104144738Unpaved0.50 km2.46.04.0 #104144740Unpaved0.50 km2.46.04.0 #104144736Unpaved0.50 km2.46.04.0 #104144742Unpaved0.50 km2.46.04.0 #104144745Unpaved0.50 km2.46.04.0 #104144747Unpaved0.49 km2.46.04.0 #104144753Unpaved0.18 km2.46.04.0 #104144744Unpaved0.20 km2.46.04.0 #104144731Unpaved0.50 km2.46.04.0 #104144733Unpaved0.50 km2.46.04.0 #104144734Unpaved0.50 km2.46.04.0 #104144749Unpaved0.50 km2.46.04.0 #104144751Unpaved0.50 km2.46.04.0

API reference

Road aggregate data via the Contour API

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

GET/api/v1/roads/search?q=Tunkalilla%20Road&state=SASearch roads by name

Councils & Government

This road is part of SA'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 Tunkalilla Road?+

Tunkalilla Road is approximately 6 km long. At typical touring speeds, expect around 1 hour of driving end to end, excluding stops.

Is Tunkalilla Road sealed?+

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

Is Tunkalilla Road good for motorcycles?+

It is passable. Tunkalilla Road scores 6.0/10 for motorcycles. Consider it a connector rather than a destination ride.

Can I drive Tunkalilla Road in a caravan?+

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

Is Tunkalilla Road suitable for a 4WD?+

Yes. Tunkalilla Road scores 8.2/10 for 4WDs, with the right mix of surface and terrain character to be worth the trip.

Are there any dangerous sections on Tunkalilla Road?+

Contour has identified 11 grey spots on Tunkalilla 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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