News & Media Releases
A selection of media releases issued about the SH20-1 Manukau Extension project.
NZTA completes southern gateway to Auckland
6 January 2011
The NZ Transport Agency opened the SH20 Cavendish to Puhinui connecting road and westbound on-ramp in Manukau today (Wednesday 5 January), completing the new SH20-1 Manukau motorway - the southern gateway to Auckland.
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NZTA enters final stage of Manukau motorway construction
10 December 2010
The NZ Transport Agency is opening Wiri Station Road in Manukau on Saturday 11 December as it enters the final stage of construction, to complete the new SH20-1 Manukau Extension motorway project.
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Changes on Wiri Station Road from Labour Weekend
21 October 2010
The NZ Transport Agency is planning changes to Wiri Station Road in Manukau from Labour Weekend, to improve connections in the area as part of work to complete the new connection between the Southern (SH1) and Southwestern (SH20) Motorways.
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Improvements to ease motorway congestion at Manukau
13 October 2010
The NZ Transport Agency is planning a series of highway improvements, including ramp signalling, to ease congestion on the Southern Motorway where SH1 and the Southwestern Motorway merge at Manukau City.
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NZTA advice: plan ahead before schools return in Manukau
7 October 2010
Motorists are being advised by the NZ Transport Agency to avoid Roscommon Road in Manukau city when schools reopen on Monday 11 October and plan alternative routes to get their children to school in time for the start of the new term.
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NZTA advice to avoid busy commuter road
27 September 2010
The NZ Transport Agency is advising commuters to avoid Roscommon Road in Manukau City or risk long delays during the morning peak because of necessary changes to road layouts.
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Plan ahead for changes on new Manukau motorway
21 September 2010
The NZ Transport Agency is asking motorists to prepare for big changes in Manukau when the westbound lanes of the new SH20-1 Manukau Extension motorway open on Sunday 26 September.
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New motorway good news for Auckland and Rugby World Cup
28 August 2010
The NZ Transport Agency’s newest motorway, connecting the Southern [SH1] and Southwestern [SH20] Motorways at Manukau City, was officially opened today by the Minister of Transport, Hon Steven Joyce.
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Wheel along Manukau's newest motorway
23 August 2010
The NZ Transport Agency warmly invites cyclists to experience Manukau's newest motorway this Saturday the 28th of August from 1pm.
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Walk the new motorway in Manukau
18 August 2010
The NZ Transport Agency is holding a community open day on Saturday 28 August to preview the new SH20-1 Manukau Extension motorway, as part of the Western Ring Route. The public are invited to walk or cycle the new motorway before it is opened to traffic.
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NZTA opens important Manukau link
15 July 2010
The NZ Transport Agency celebrated the opening of Plunket Avenue Bridge today - the last of twelve bridges to be completed on the SH20-1 Manukau Extension project as part of the Western Ring Route.
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New Puhinui to Roscommon connecting road to open
6 July 2010
The NZ Transport Agency will open the new Puhinui to Roscommon connecting road in Manukau City on Thursday 8 July.
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New Manukau motorway to open this year
22 June 2010
A big change is planned for those travelling in and around Manukau when the NZ Transport Agency’s SH20-1 Manukau Extension motorway opens later this year.
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Plunket Avenue closed for bridge work
2 June 2010
The NZ Transport Agency advises that Plunket Avenue will be temporarily closed between Keith Hay Drive and Falcon Avenue for five weeks from Saturday 12 June. It will reopen on or before Sunday 18 July.
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Beams lifted into place on railway bridge
8 February 2010
24 beams were successfully lifted into place across the final two spans of the North Island Main Trunk Railway bridge overnight on Wednesday 3 and Thursday 4 February as part of the NZ Transport Agency's SH20-1 Manukau Extension project.
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SH1 closures at Redoubt Road
11 July 2009
As part of work on the SH20-SH1 Interchange, motorway closures will be in place around Redoubt Road on Monday 13 July. Please see the attached pdf for more details. For more information on the interchange, see Key Features.
Attached PDF (1.82 MB)
SH1 flyover
9 May 2009
On Sunday May 10 the Leighton Works team constructing NZ Transport Agency's SH20-SH1 Manukau Extension will be installing bridge beams across State Highway 1 for the SH1-SH20 flyover.
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Davies Avenue to close
2 March 2009
The NZ Transport Agency will close Davies Avenue between Putney Way and Wiri Station Road from Thursday 5 March as part of ongoing progress on the SH20-1 Manukau Extension project.
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Lambie Drive Bridge completes milestone on Manukau Extension
20 February 2009
The NZ Transport Agency celebrated completion of the first section of the new Lambie Drive bridge yesterday (Thursday 19 February) as part of its SH20-1 Manukau Extension project.
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New on-ramp opens 16 February at Redoubt Road
10 February 2009
The NZ Transport Agency will open a new on-ramp at Redoubt Road on Monday 16 February, as part of ongoing construction on the SH20-1 Manukau Extension Motorway.
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Temporary SH20 off-ramp to Puhinui Road opens Monday
29 January 2009
A temporary SH20 off-ramp to Puhinui Road will open at 5am on Monday 2 February, as part of construction on the NZ Transport Agency's SH20-1 Manukau Extension project.
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Second bridge opens on SH20-1 Manukau Extension project
12 December 2008
The NZ Transport Agency will open the second bridge on the SH20-1 Manukau Extension project to motorists on Tuesday 16 December.
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SH1 Great South Road northbound off-ramp Thursday 15 November - Friday 16 November
9 November 2007
SH20 Manukau Extension will provide a motorway connection between SH20 at Puhinui Interchange to SH1 at Manukau when finished. This update provides information on upcoming works on the project.
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Transit New Zealand begins construction on Manukau Extension Motorway Project
30 June 2006
The first ground was broken today on Transit New Zealand’s Manukau Extension in a sod turning ceremony marking the beginning of construction on the $210M motorway project which forms the southern end of the Western Ring Route.
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