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Statistics:

• Length: 39 km
• Northern Terminus: Lady Ruthven Dr (unnumbered), Outer Harbor
• Southern Terminus: North East Road (A10) & Grand Junction Rd (unnumbered) at Holden Hill
• Suburbs, Towns & Localities along route: Outer Harbor, Semaphore, Port Adelaide, Wingfield, Gepps Cross and Holden Hill

Route Numbering:

• Current: A16

• Former:
• Road Authority Internal Classification: 05280 (Port Adelaide to Holden Hill), 05800 (Outer Harbor to Birkenhead), 05815 (Birkenhead to Semaphore), 05818 (Semaphore to Ethelton), 05824 (Ethelton to Port Adelaide) and 05865 (Birkenhead) 1

General Information:

A16 is a major arterial route that connects the harbour and Port Adelaide area to the northern metropolitan area.

Part of Grand Junction Road is funded by Auslink and classified as part of what used to be known as the National Highway network. That section runs from Hampstead Road at Northfield and travels to South Road at Regency Park. Grand Junction Road was originally known as Junction Road, acquiring its current name from a small settlement that contained a school and an inn and was known as the Grand Junction from at least 1850. The settlement lay at the intersection of the main roads to Adelaide, Port Adelaide and the northern towns of the Adelaide plains. 2

Major routes that intersect or connect with A16 include:

• Port Road (A7), Alberton
• North-South Motorway (M2), Wingfield
• Cavan Road and Churchill Road (A22), Kilburn
• Main North Road (A20), Gepps Cross
• Port Wakefield Road (A1), Gepps Cross
• Hampstead Road (A17), Northfield
• North East Road (A10), Holden Hill

History:

• May 2005: Upgrade of the traffic signals at the intersection of Grand Junction Road, Churchill Road and Cavan Road, Kilburn. Also modification of the existing left-turn slip lane on Churchill Road. The upgrade also included modifications of the existing left-turn slip lane on Grand Junction Road for motorists turning left on to Churchill Road. 3
• November 2005: Grand Junction Road proclaimed as a limited access road at Regency Park. 4
• 2006: Installation of traffic signals and widened and protected turning lanes at the intersection of Victoria Road and Wills Street. 5
• 2007: As part of the Port River Expressway project, works begin on a dedicated left-hand turning lane at the south east corner of the intersection of Wills Street and Victoria Road to allow free flow for heavy vehicles. And works begin at the intersection of Victoria Road, Nelson Street, Semaphore Road and Elder Road to realign, reconstruct and add signals to connect the Port Centre to the Port River Expressway. The southern end of Victoria Road became a service road. Nelson Street was also extended to meet the new alignment of Victoria Road, creating a second signalised intersection between Nelson Street, Victoria Road and the Port River Expressway. 6
• January 2012: Piers constructed for South Road Superway bridge over Grand Junction Road. 7
• 2013: Work starts on interchange with South Road Superway and Grand Junction Road. 8
• April 2015: Works to improve right-turn lanes at the intersection of North East Road and Grand Junction Road started. The works included extending the right-turn lanes on both North East Road and Grand Junction Road, and upgrading the traffic signals to fully control right-turn movements. 9
• April 2017: Work commences on safety upgrades to the Victoria Road intersection with Strathfield Terrace, Largs North. Work included: installation of a raised concrete seagull island on Victoria Road preventing movements from Strathfield Terrace across Victoria Road (both eastbound and westbound), installation of a Pedestrian Actuated Crossing immediately south of the Victoria Road intersection with Strathfield Terrace, to assist pedestrians in crossing Victoria Road, vehicle movements being restricted to left-in and left-out at Strathfield Terrace (east), with all other vehicle movements into and out of Strathfield Terrace (west) unchanged, two U-turn provisions on Victoria Road to the north and south of the intersection with Strathfield Terrace plus odifications to signage and line marking and installation of new street lighting. 10

Outer Harbor to Holden Hill			Holden Hill To Outer harbor
Preview:	Description:		Preview:	Description:
	Advance Directional Sign: AD sign on Grand Junction Rd (A16) at Gepps Cross approaching Main North Rd (A1 and A20) and Port Wakefield Rd (A1), December 2003. Image © Michael Greenslade			Advance Directional Sign: Westbound AD sign on Grand Junction Road at Northfield, approaching the intersection with Hampstead Road and Briens Road, December 2003. Image © Michael Greenslade
	Advance Directional Sign: AD sign on Grand Jct Rd (A16) at Northfield approaching Hampstead Rd (A17) and Briens Rd, December 2003. Image © Michael Greenslade			Advance Directional Sign: Westbound AD sign approaching the 5 way intersection with Port Wakefield Road (A1), Main North Road (A20 / A1). October 2004. Image © Darrin Smith
				Advance Directional Sign: Northbound AD sign on Prospect Rd at Blair Athol, approaching Grand Junction Rd (A16). February 2019. Image © Todd Milton
				Advance Directional Sign: AD sign South Rd (formerly A13) at Regency Park, December 2003. Image © Michael Greenslade

1 Location SA Map Viewer
2 John H Lewis publication, "Enfield and the Northern Villages"
3 Transport SA
4 South Australian Attorney General's Department
5 Government of South Australia, Department for Transport, Energy & Infrastructure, Port River Expressway, Community Update, June 2006
6 Government of South Australia, Department for Transport, Energy & Infrastructure, Port River Expressway, Community Update, March 2007
7 Government of South Australia, Department of Planning, Transport & Infrastructure, News, South Road Superway - Construction update, Jan 2012, 01 Feb 2012
8 Government of South Australia, Department of Planning, Transport & Infrastructure, Detours around Grand Junction Rd and South Rd, 31 Jul 2013
9 Government of South Australia, Department of Planning, Transport & Infrastructure, News, Major intersection upgrade, 29 Apr 2015
10 Government of South Australia, Department of Planning, Transport & Infrastructure, News, Safety improvements at Victoria Road, Largs North, 31 Mar 2017

Last updated: 01-Dec-2020 0:50

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