Construction Update

PROGRESS THROUGH AUGUSTJULY

Over the last month, work has involved pavement construction, bridge upgrades, service locations,protections, and various retaining walls. The daytime safe work zones arewere extended overnight on Wednesday 29 July, with the median safe work zone now in place between Hill Road and the Pahurehure Inlet.

 Hill Road to the Takanini Interchange:

• Asphalt operations were completed inIn the median area between Alfriston Road and the Takanini Interchange.Interchange, the lower (granular) pavement layers were laid.
• Earthworks and drainage installation were completed incontinued along the median and continued along the southbound shoulder of the motorway. This included shaping of the new open channels (also(as known as swales) which help treat stormwater as it runs off the motorway.
• Installation of slip-form concrete barriers began inBetween Hill Road and Alfriston Road, old median barriers, grass, and topsoil were removed to enable the median.construction of new pavement layers.

 Takanini Interchange to Pahurehure Inlet:

• Temporary guard railing was installed onDrainage installation continued along the southbound shoulder of the northbound motorway to create a safe work zone.motorway. This included shaping of the new open channels (as known as swales) which help treat stormwater as it runs off the motorway.
• Bulk earthworks continued to shape the area for the new pavement and drainage.

 Other Areas:

• On the Papakura Bridge, just north of the railway line, ongoing substructure work continued.
• Work continued to excavate and soil nail the abutments under bridges crossing the railway line and along the southbound off-ramp towards Spartan Road.
• Work continued on the placement of precast retaining wall panels and the reinforcing cage for the northern abutment of the Spartan Road Bridge.
• Continued offsite precasting components for retaining walls, noise walls, and bridges.

WORK BEING UNDERTAKEN IN SEPTEMBERAUGUST

Over the next month, we will continue working in the median and shoulders between Hill Road and the Pahurehure Inlet. We will also continue working to widen the motorway bridges over the Papakura Stream, and the KiwiRail Lines. Service investigations will continue for futureLines. In the office, long term planning is underway for future work areas to be established, including works around major utilities such as gas, water, and power main lines. Work this month includes:

 Hill Road to the Takanini Interchange:

• In the median, base layers will be laid to form the new pavement between Hill Road and Alfriston Road.
• Asphalt operations will commence in the median between Hill Road and Alfriston Road.
• Installation of slip-form concrete barriers will continue in the median.
• Earthworks and drainage installation will continue along the median and southbound shoulder of the motorway. This includeswill include shaping of the new open channels (also(as known as swales) which help treat stormwater as it runs off the motorway.
• Asphalt operations will commence in the median area between Alfriston Road and the Takanini Interchange.
• Slip-forming concrete barriers will follow immediately after asphalting operations.

 Other Areas:

• On the Papakura Stream bridge,Bridge, just north of the railway line, substructure work and retaining wall construction is ongoing.
• We will continue offsite precasting components for noise walls, retaining walls, and bridges.
• Work continueswill continue on the placement of precast retaining wall panels nearest the Spartan Road Bridge.
• Across the project, long term environmental controls are being installed to maintain water quality during construction.

It is important that motorists keep to the 80 km/h speed limit past our work areas. There will be ongoing truck and project vehicle movements accessing the shoulder and the median work sites. Keeping both motorists and our team members as safe as possible is imperative and we need everyone's help to do this.

As always, we will be doing our best to minimise effects of these works on motorists as much as we can. We thank you for your patience as we work to improve journey reliability and safety along the Southern Corridor.