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Port Road

South Australia
Port Road; South Australia
	Looking towards the Adelaide city centre from Port Road in Hindmarsh
Coordinates	34°55′20″S 138°35′14″E / 34.922112°S 138.587273°E (Southeast end); 34°50′40″S 138°30′19″E / 34.844337°S 138.505362°E (Northwest end);
General information
Type	Road
Location	Adelaide
Length	12.0 km (7.5 mi)
Route number(s)	R1 (2017–present); (through Thebarton); A7 (1998–present); (Hindmarsh–Port Adelaide);
Former; route number	A21 (1998–2017); (Adelaide–Thebarton)
Major junctions
Southeast end	North Terrace; West Terrace; Adelaide
	Park Terrace; North–South Motorway; East Avenue; Tapleys Hill Road; Grand Junction Road;
Northwest end	St Vincent Street; Port Adelaide, Adelaide
Location(s)
Region	Eastern Adelaide, Western Adelaide
Major suburbs	Thebarton, Hindmarsh, Beverley, Woodville, Albert Park, Cheltenham, Alberton

Port Road (and its northern section as Commercial Road through Port Adelaide) is a major road in Adelaide, South Australia connecting the Adelaide city centre with Port Adelaide.^[3] It is 12 km (7.5 mi) long, and is designated part of route R1 within central Adelaide, and beyond as route A7.

Route

Port Road starts at the north-western corner of the Adelaide city centre, at the intersection of North Terrace and West Terrace, and heads northwest, turning north at Thebarton to become part of the City Ring Route, before meeting Park Terrace at Hindmarsh and heading northwest again with its widened median, crossing the North-South Motorway and heading through the suburbs of Woodville and Cheltenham, before it turns northwards at Alberton to cross Grand Junction Road, changing name to Commercial Road and terminating not long afterwards in the centre of Port Adelaide.

History

The road includes a very wide median strip, giving a total width of approximately 70 metres. The original design was conceived soon after the establishment of Adelaide, was to accommodate a standard road and a canal, with the canal later replaced in the plans by a railway line.^[4] The canal and railway line were never created in the road allotment: the railway line when built in 1853 was built approximately 1 km to the east. Since the extension of the Glenelg tram line in 2009–10, 200 metres of median strip at the city end is occupied by tram lines.

In the 1968 Metropolitan Adelaide Transport Study (MATS plan) the road was destined to be upgraded to become the Port Freeway. The plan fell through, yet in 2005 the Government of South Australia announced a 600 m tunnel for South Road below Port Road and the railway line. The Torrens Road to River Torrens project to upgrade South Road to include a free-flowing road in a trench under Port Road and several other intersections started construction in 2015 and was completed by the end of 2018.^[5]^[6]

Some routes in Adelaide were renumbered in 2017. Port Road had been designated route A21 (city ring route) between West Terrace and Park Terrace. After the change, the West Terrace end is not numbered, and it bears route R1 (city ring route) between James Congdon Drive and Park Terrace.

Major intersections

LGA^[7]	Location^[1]^[8]	km^[1]	mi	Destinations	Notes
Adelaide	Adelaide	0.0	0.0	North Terrace (east) – Adelaide CBD West Terrace (south) – Adelaide CBD	Southeastern terminus of Port Road
Adelaide–West Torrens boundary	Thebarton–North Adelaide boundary	1.0	0.62	James Congdon Drive (R1 south) – Mile End, Keswick	Route R1 continues north along Port Road
River Torrens		2.0	1.2	Hindmarsh Bridge
Adelaide–Charles Sturt boundary	Hindmarsh–North Adelaide boundary	2.1	1.3	Park Terrace (R1 northeast) – North Adelaide, Medindie, Kent Town Adam Street (west) – West Hindmarsh	Route R1 continues northeast along Park Terrace Southeastern terminus of route A7
Charles Sturt	Hindmarsh–West Hindmarsh–Croydon tripoint	3.3	2.1	South Road, to North–South Motorway (M2) – Wingfield, Waterloo Corner
	Allenby Gardens–Beverley–West Croydon boundary	5.1	3.2	East Avenue (A14) – Underdale, Plympton, Darlington
	Beverley–Kilkenny–Woodville Park boundary	5.4	3.4	Kilkenny Road – Kilkenny
	Albert Park–Woodville South–Woodville boundary	7.7	4.8	Grange railway line
	Albert Park–Cheltenham–Woodville boundary	7.8	4.8	Cheltenham Parade (north) – Pennington West Lakes Boulevard (southwest) – West Lakes, Football Park
Charles Sturt–Port Adelaide Enfield boundary	Albert Park–Queenstown–Cheltenham boundary	9.0	5.6	Old Port Road
Port Adelaide Enfield	Queenstown–Alberton boundary	9.7	6.0	Tapleys Hill Road (A15) – Glenelg, Brighton, Port Noarlunga
	Alberton–Port Adelaide boundary	11.0	6.8	Grand Junction Road (A16) – Gepps Cross, Northfield, Hope Valley	Name change: Port Road (south), Commercial Road (north)
	Port Adelaide	11.4	7.1	Outer Harbor railway line
	Port Adelaide	12.0	7.5	St Vincent Street – Port Adelaide, New Port	Northwestern terminus of Commercial Road and route A7
Route transition