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SH1 Papakura to Drury

Construction update

5 September 2025



	STMS (Site Traffic Management Supervisor) Kareena leads the project’s day works Temporary Traffic Management (TTM) team. Our TTM teams work hard to minimise disruption to the public as much as possible while keeping our crews, road users and the community safe. Construction update \| He pānui Kia ora Spring is here and we are loving the improving weather. Read on for a picture-based update of progress across the project over the last month. Do get in touch if you have any queries about the works shown in this issue or any other aspect of the project – our contact details are shown at the end of this update.



	South of Drury Interchange Last month we completed all pavement construction works in the central median of the motorway south of Drury Interchange. This week, we started to lay asphalt in this area ahead of shifting the southbound motorway lanes onto it later this month. This traffic shift will create the working space we need on the eastern side of the motorway south of Drury to build new pavement for widening and realigning the motorway eastwards. The picture above shows milling (removing old asphalt) before new asphalt is laid.



	Drury Interchange At Drury Interchange, we have been working in all four triangles (gores) of the interchange between the motorway and the on and off-ramps. In August, our focus was on bulk earthworks in the northeastern gore, where we also completed driving sheet piles into the ground to support the southbound motorway lanes. We are now installing 'soil nails' to help support the lanes also, which we will continue working on throughout this month. When we have finished these, we will begin installing stone columns to retain the piles for the new motorway bridge over Great South Road.



	Flanagan Road At Flanagan Road, we are laying 1200mm watermain pipes (see above) underground behind the large retaining wall completed earlier this year so we can eventually realign the Waikato pipeline supplying around 30% of Auckland’s water. After we finish laying the new alignment of pipes (for a length of 370m), the watermain will be cutover from the old to the new alignment at the end of this year.



	SH22 / Great South Road On SH22, our crew are busy installing new underground services, including wastewater pipes, stormwater pipes and utility ducts for the new traffic lights. The picture above shows progress installing an underground dual rising wastewater main alongside SH22.



	Bremner Road at Ngaakooroa Stream With the temporary steel truss bridge over Ngaakooroa Stream completed last month, our team have been installing underground utility services ducts on the sides of Bremner Road and Victoria Street, and on the bridge itself (see pipes at left above). We will continue with underground utility services cutovers (switching from existing to new) and diversions this month as well as building the roading approaches either side of this temporary bridge.



	Slippery Creek / Otuuwairoa Stream On the southeastern side of Slippery Creek / Otuuwairoa Stream, we have continued installing ground improvement piles to strengthen the ground (see above) and also bridge piles for the new SH1 bridge. This month we will start installing ground improvement piles on the northeastern side of the creek also. Further north, work on a new noisewall has been progressing well. This week we began installing the noisewall piles and will continue this work throughout this month.

During the coming months, our project works include:

Continuing with construction of a small noisewall, north of Slippery Creek/Otuuwairoa Stream
Continuing earthworks either side of Slippery Creek in preparation for road widening and bridge building works
Beginning to build a new SH1 southbound bridge over Slippery Creek
Continuing our pavement building works in the central motorway median between Slippery Creek and Drury Interchange
Continuing earthworks in the triangle gore areas between the motorway and the Drury southbound off and on-ramps
Sheet piling in between the Drury southbound on-ramp and the middle new motorway bridge over the NIMT railway
Shifting SH1 southbound traffic onto the central median of the motorway between the Drury Interchange and the Quarry Road overbridge
Starting construction on the eastern side of the motorway between Drury Interchange and the Quarry Road overbridge
Continuing underground service investigations around Drury Interchange, including on the motorway, Great South Road, SH22, Bremner Road, Victoria Street and Mercer Street
Realigning the Victoria Street intersection with SH22 before installing traffic lights
Continuing to install underground services on Victoria Street, north of the Drury Sports Complex car park
Shifting Bremner Road traffic onto the new temporary steel truss bridge.

For further information regarding the project, please contact our team:

We thank you in advance for your patience during these important motorway upgrades.

Kind regards | Ngā mihi
The SH1 Papakura to Drury team