List of road routes in the Northern Territory


Road routes in the Northern Territory assist drivers navigating roads throughout the territory, by identifying important through-routes. The Northern Territory's National Highways are the main routes connecting Darwin to the adjacent states of Queensland, South Australia, and Western Australia. National Routes spur off the National Highways, and are other routes of national importance, while the remaining significant routes are designated as State Routes.
According to the New South Wales Roads and Maritime Services, the Northern Territory has begun converting their numbered routes to alphanumeric routes, with a "progressive replacement" scheme that sees alphanumeric route markers introduced only when signs are replaced.

National Highways and Routes

There are three national highways and three national routes in the Northern Territory.
RoutePlanned alphanumeric routeComponent roadsFromToLengthNotes

National Highway 1
A1		WA–NT border 743 km Continues east from Daly Waters as National Route 1

National Highway 1
A1		2,834 km Partially signed as alphanumeric route A1; spur section connecting to Darwin

National Highway 66
B66		Qld–NT border 754 km

National Highway 87
A87		SA–NT border 2,834 km

National Route 1
B1		Qld–NT border 380 km Continues north from Daly Waters as National Highway 1

National Route 80
C80		Victoria Highway ( south-east of Timber CreekBirdum

National Route 96
B96		Delamere, NTDuncan Road, Nicholson, WA

State Routes

State routes are numbered based on their position in the territory, generally increasing in number from south to north.
RouteComponent roadsPlanned Alphanumeric ReplacementFromToLengthNotes-

State Route 2		Larapinta Drive, Larapinta Drive, 156 km -

State Route 3		Lasseter HighwayWatarrka National Park161 km -

State Route 4		ErldundaUluru244 km -

State Route 4		UluruWA–NT border 189 km -

State Route 5		WA–NT border 1,035 km -

State Route 6		Watarrka National ParkAlice Springs325 km -

State Route 8		Arltunga Historical Reserve, 90 km -

State Route 11		375 km -

State Route 12		Qld–NT border -

State Route 14		Plenty Highway, Qld–NT border 561 km -

State Route 16		Lake Woods251 km -

State Route 20		MatarankaRoper Bar206 km -

State Route 21		209 km -

State Route 23		Adelaide RiverHayes Creek, 65 km

State Route 24		663 km -

State Route 28		Robin FallsWadeye-

State Route 30		Coomalie CreekBlackmore-

State Route 34		NoonamahCox Peninsula79.5 km Partially signed as alphanumeric route B34-

State Route 36		McMinns LagoonKakadu National Park-