Karangahape CRL CLG May 2020

Karangahape Station CLG Presentation 26 May 2020

CLG Agenda 5:00 Welcome, Simon Mitchell (Community Manager) 5:05 Project overview, Jonathan Hill (Station Manager) 5:10 Presentations • Mercury Lane overview, Melissa Lu (Site Engineer) • Tunnels, Cam Butcher (Construction Manager, mined tunnels) • Sustainability, Jenny Spence (Sustainability Advisor) • Beresford Square overview, Manu De Silva (Project Engineer) • Development Response, Arash Barzin (Development Response Manager) 6:00 Questions & answers, Simon Mitchell

Project Overview Jonathan Hill Station Manager

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2/06/2020

Beresford Square

Mercury Lane

Mercury Lane May 2020 – September 2020 • Noise enclosure construction (purple) • Installation of diaphragm walls (green), the station’s external walls.

Beresford Square July 2020 – August 2020 • Installation of plunge columns, providing temporary support for floors and super structure.

Mercury Lane September 2020 – October 2020 • Installation of plunge columns, providing temporary support for floors and super structure • Mined tunnels started.

Beresford Square August 2020 – January 2021 • Installation of diaphragm walls (green), the station’s external walls.

Mercury Lane October 2020 – December 2021 • Excavation and construction of station floor and rock beneath.

Beresford Square January 2021 – January 2022 • Excavation and construction of station floor and rock beneath.

Mercury Lane January 2022 – March 2023 • • • •

Bottom up construction of lower floors Completion of floor columns and walls for station structure Above ground structure Start to station fit-out.

2/06/2020

Beresford Square January 2022 – March 2023 • Bottom up floor construction • Completion of floor columns and walls for station structure • Start to station fit-out.

Mercury Lane March 2023 – 2024 • Noise enclosure and temporary shaft removal • Station fit-out complete • Urban realm complete.

2/06/2020

Beresford Square March 2023 – 2024 • Station fit-out complete • Urban realm complete.

Mercury Lane Overview Melissa Lu Site Engineer

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Mercury Lane January

March

February

May

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Mercury Lane

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Mercury Lane Mechanically Stabilised Earthworks

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Mercury Lane

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Mercury Lane

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Mercury Lane Bentonite plant

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Tunnels Cam Butcher Construction Manager, Mined Tunnels

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Mined Tunnels

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A5 (AD2) A3 (AD1)

A4 (AD3)

A2 (AD1) A1 (AD2)

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MC20

MC30 Current Adit A1 profile (Stage A)

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Cut vertical sump in centre of face.

Move machine forward to minimum boom extension.

Vertical sump

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Sustainability Jenny Spence Sustainability Advisor

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Sustainability objective

To set the benchmark for designing, building and operating sustainable infrastructure in New Zealand.

Sustainability, Environmental and Kaitiakitanga: to optimise the footprint of the CRL during construction and over the Project's operational life, achieving an "Excellent" IS rating and delivering positive and enduring socio-economic outcomes for the people of Auckland

through quality training, employment and development opportunities for targeted new entrants.

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Infrastructure Sustainably

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‘Excellent’ As-built rating for whole project

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New Zealand pilot – CRL version: • NZ criteria • incorporates Mana Whenua cultural values

Infrastructure Sustainability Council of Australia

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Why IS?

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Stretches us to strive for higher performance

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Independent verification

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Ensuring desired outcomes are achieved

Infrastructure Sustainability Council of Australia

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Minimum requirements

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Energy: 25% reduction in construction and operation phase

greenhouse gas emissions compared to base case •

Materials: 15% reduction in lifecycle impact

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Water use: 5% reduction over construction and operation

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Water discharges: Engagement with Mana Whenua, no increase in peak stormwater flows, improvement of receiving water environmental values.

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Minimum requirements •

Waste Targets for diversion from landfill: • 100% clean spoil • 90% C&D • 60% office Waste Resource Action Programme (WRAP) i. design for reuse and recovery; ii. design for off-site construction; iii. design for materials optimisation; iv. design for waste efficient procurement; and v. design for deconstruction and flexibility.

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How are we going to achieve this?

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Eliminating temporary works wherever

possible •

Concrete mix designs

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Efficient electrical equipment

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Maximise use of grid power

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Efficient water fittings and water reuse

Steel re-use savings

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Beresford Square Overview Manu De Silva Project Engineer, Beresford Square

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Guide wall and D-Wall Methodology • Road closure • Excavation for base of guidewall • Guidewall steel and concrete • Crane, Hydrofraise and other plant setup.

• Grab crane excavate inside guidewall and muckaway

• Hydrofraise begin Dwall inside guidewall: • Excavate and Bentonite infill • Steel cages installed • Concrete poured

• Repeat for next traffic stage.

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Guide wall and D-Walls Traffic Staging

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Three key stages that will repeat between Guidewall construction, to Dwall construction to Slab construction.

Each stage will last at least a month, as above will repeat for GW, DW and Slab construction.

Access to private vehicle entrances will be maintained throughout durations.

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Plunged Columns Traffic Management • Six columns in total.

• Installed sequentially within the road closure.

• Approximate duration 3 – 4 weeks, followed by D-Wall construction.

• Access to private vehicle entrances will be maintained throughout duration.

Plunged Columns Methodology • • •

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Six columns in total.

Installed sequentially within the road closure.

Approximate duration 3 – 4 weeks, followed by D-Wall construction.

Access to private vehicle entrances will be maintained throughout duration.

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Development & Response Arash Barzin Development Response Manager

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Indicative Beresford Square layout (still under development)

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CRL / Link Alliance – Information Points

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Beresford Square – Monster Valley Perspex hoarding (four concepts being developed)

Image under development

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Beresford Square / Hopetoun - Auckland Photography Festival 2020

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Indicative Mercury Lane hoarding layout (still under development)

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Mercury Lane – CRL Link Alliance branded hoarding

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Cross Street – mural artist - Ross Liew

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Canada Street - mural artist - Paul Walsh (concepts)

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Canada Street - mural artist - Paul Walsh (concepts)

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Canada Street - mural artist - Paul Walsh (concept #03)

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Canada Street - mural artist - Paul Walsh (concept #04)

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Canada Street - mural artist - Paul Walsh (concept #05)

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East street hoarding collaboration with TAUTAI artists

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Questions & Answers

Thank you

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