Skip to main content

Sumac Road

TASUnclassified road55.4 km117 segmentsC218
2.4Sports
55.4 kmTotal length
117Segments
3Recorded crashes
116Grey spot segments
View on Discover MapGoogle Maps ↗

Sumac Road is a 55 km sealed road in Tasmania, Australia. It scores 8.4/10 for 4WDs with highly technical corners and rough surface.

7-day forecast

Write a story··Report an issue
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
8.4/10
4WD4WDGravel access, off-road suitability
2.6/10
VANCaravanSmooth sealed, gentle grades, no steep passes
Segment quality distribution
Sports score - 117 segments
Excellent (8+)31%Good (6-8)6%Poor (<4)63%

Sports score IQR: 2.4 - 8.8

Surface
Surface coverage
Sealed35%Unsealed65%
Score breakdown
Median component scores across all segments
Surface
3.0
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
7.0
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
9.0
Elevation change per kilometre. More climbing = higher score.
Crash history
Aggregated across all 117 segments· 28 years of data
3
Total crashes
0
Fatalities
0
Serious injuries
116
Grey spots
Last 5 years
1
Crashes (5yr)
0
Fatalities (5yr)
TAS avg: 0.483 crashes/km/yrThis road: 0.109▼ Below average

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

0%

Night crashes

Crashes that occurred after dark

33%

Based on 28 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
6.5/10 safety score - higher is safer
Wet road exposure66%
Night driving risk69%
Wind exposure61%
Sun glare risk65%
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 119 segments by sports score
IDSurfaceLengthSportsMotoEV
#108469148Paved0.48 km9.39.29.3#108469167Paved0.51 km9.39.29.3#108469174Paved0.47 km9.39.29.3#108469161Paved0.40 km9.39.29.3#108469150Paved0.35 km9.39.29.3#108469155Paved0.44 km9.39.29.3#108469173Paved0.65 km9.39.29.3#108451312Asphalt0.38 km9.39.29.3#108469159Paved0.65 km9.39.29.3#108469149Paved0.37 km9.29.19.2#108469160Paved0.38 km9.29.19.2#108469166Paved0.65 km9.29.19.2#108469176Paved0.52 km9.29.19.2#108469175Paved0.54 km9.29.19.2#108469157Paved0.46 km9.29.19.2#108469147Paved0.59 km9.29.19.2#108469151Paved0.53 km9.29.19.2#108469158Paved0.58 km9.29.19.2#108469172Paved0.35 km9.29.19.2#108469165Paved0.38 km9.29.19.2#108469162Paved0.41 km9.19.19.1#108469168Paved0.42 km9.19.09.1#108451313Asphalt0.63 km9.19.09.1#108554778Asphalt0.48 km9.19.09.1#108554780Asphalt0.32 km9.08.99.0#108469152Paved0.38 km9.08.99.1#108469154Paved0.61 km8.98.88.9#108469171Paved0.60 km8.98.88.9#108469177Paved0.62 km8.98.89.0#108469156Paved0.50 km8.88.78.7#108469164Paved0.43 km8.78.68.6#108469163Paved0.44 km8.68.58.6#108451314Asphalt0.43 km8.38.28.3#108554779Asphalt0.41 km8.38.18.3#108451316Asphalt0.63 km8.28.18.2#108469169Paved0.39 km8.28.18.2#108451317Asphalt0.40 km8.18.08.2#108451315Asphalt0.50 km8.18.08.2#108469153Paved0.11 km8.17.98.3#108451318Asphalt0.18 km8.07.78.1#108469170Paved0.59 km7.47.17.4#108469178Paved0.02 km7.37.07.8#108469179Paved0.04 km7.26.97.6#108451067Asphalt0.09 km6.86.47.3#108499576-0.03 km2.94.65.3#108451395Unpaved0.55 km2.46.04.0#108451384Unpaved0.54 km2.46.04.0#108451381Unpaved0.64 km2.46.04.0#108451378Unpaved0.54 km2.46.04.0#108451375Unpaved0.35 km2.46.04.0#108499552Unpaved0.63 km2.46.04.0#108499563Unpaved0.48 km2.46.04.0#108451374Unpaved0.65 km2.46.04.0#108499556Unpaved0.46 km2.46.04.0#108499559Unpaved0.65 km2.46.04.0#108451363Unpaved0.51 km2.46.04.0#108451358Unpaved0.65 km2.46.04.0#108451371Unpaved0.10 km2.45.84.0#108451392Unpaved0.56 km2.46.04.0#108451361Unpaved0.61 km2.46.04.0#108451364Unpaved0.36 km2.46.04.0#108451372Unpaved0.55 km2.46.04.0#108451360Unpaved0.37 km2.46.04.0#108451356Unpaved0.41 km2.46.04.0#108451353Unpaved0.55 km2.46.04.0#108451352Unpaved0.37 km2.46.04.0#108451351Unpaved0.65 km2.46.04.0#108451359Unpaved0.01 km2.45.74.0#108451355Unpaved0.37 km2.46.04.0#108451367Unpaved0.39 km2.45.64.0#108451368Unpaved0.65 km2.46.04.0#108451383Unpaved0.43 km2.46.04.0#108451386Unpaved0.45 km2.46.04.0#108451388Unpaved0.41 km2.46.04.0#108451397Unpaved0.48 km2.46.04.0#108451349Unpaved0.65 km2.46.04.0#108451396Unpaved0.46 km2.46.04.0#108451362Unpaved0.52 km2.46.04.0#108451382Unpaved0.38 km2.46.04.0#108451357Unpaved0.65 km2.46.04.0#108499554Unpaved0.65 km2.46.04.0#108451354Unpaved0.35 km2.46.04.0#108451366Unpaved0.43 km2.46.04.0#108451373Unpaved0.40 km2.46.04.0#108451377Unpaved0.65 km2.46.04.0#108499573Unpaved0.50 km2.46.04.0#108499571Unpaved0.42 km2.46.04.0#108499570Unpaved0.65 km2.46.04.0#108451370Unpaved0.56 km2.46.04.0#108451350Unpaved0.46 km2.46.04.0#108451380Unpaved0.38 km2.46.04.0#108451376Unpaved0.45 km2.46.04.0#108451379Unpaved0.53 km2.46.04.0#108451391Unpaved0.41 km2.46.04.0#108451394Unpaved0.51 km2.46.04.0#108499553Unpaved0.49 km2.46.04.0#108499575Unpaved0.01 km2.44.34.0#108451365Unpaved0.52 km2.46.04.0#108451369Unpaved0.57 km2.46.04.0#108451385Unpaved0.50 km2.46.04.0#108451387Unpaved0.48 km2.45.04.0#108451389Unpaved0.65 km2.46.04.0#108499551Unpaved0.57 km2.46.04.0#108499555Unpaved0.39 km2.46.04.0#108499557Unpaved0.35 km2.46.04.0#108499558Unpaved0.60 km2.46.04.0#108499560Unpaved0.65 km2.46.04.0#108499561Unpaved0.51 km2.46.04.0#108451390Unpaved0.42 km2.46.04.0#108499564Unpaved0.41 km2.46.04.0#108499565Unpaved0.55 km2.46.04.0#108499566Unpaved0.65 km2.46.04.0#108499567Unpaved0.65 km2.46.04.0#108499568Unpaved0.40 km2.46.04.0#108499569Unpaved0.60 km2.46.04.0#108499572Unpaved0.34 km2.46.04.0#108499574Unpaved0.50 km2.46.04.0#108499562Unpaved0.63 km2.46.04.0#108451393Unpaved0.38 km2.46.04.0
API reference
Road aggregate data via the Contour API
GET/api/v1/roads/sumac-road-tasRoad aggregate - scores, stats, risk profile, activity, segment list
GET/api/v1/roads/search?q=Sumac%20Road&state=TASSearch roads by name

Councils & Government

This road is part of TAS'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 Sumac Road?+

Sumac Road is approximately 55 km long. At typical touring speeds, expect around 1 hour of driving end to end, excluding stops.

Is Sumac Road sealed?+

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

Is Sumac Road good for motorcycles?+

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

Can I drive Sumac Road in a caravan?+

Not recommended. Sumac 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 Sumac Road?+

Contour has identified 116 grey spots on Sumac Road - sections where the road geometry does not match the posted speed limit. Take extra care in wet or low-visibility conditions.

Similar roads
Pitts Lane
Same state, 166 km away
3.9
RQS
Ironcliffe Road
Same state, 84 km away
3.9
RQS
Bluff Access Road
Same state, 110 km away
3.9
RQS
Touchstone Lane
Same state, 94 km away
3.9
RQS
Byards Road
Same state, 102 km away
3.9
RQS

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.

See how the world's best roads compare