City Rail Link Works at Britomart Station
Presentation to Britomart Community Liaison Group – 16 February 2022
Agenda • Intro – Nicole Lawton • C1 Close out – Mark Youngs • Britomart look ahead – Richard Jenkins • Q&A – All • Wider project – Olivia Cookson
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Introduction – C1 completion July 2016 – October 2021
Completed by contractor DSBJV
New temporary station accommodation Connects with Commercial Bay and C2 tunnels
Twin rail tunnels under the CPO and Lower Queen Street
New civic square “Te Komititanga” 3
Introduction – Britomart works look ahead • Late 2021 – project completion (approx. 2024)
• Delivered by CRL & contractors Link Alliance, KiwiRail and Martinus, in partnership with AT
• Below ground works in Britomart Station • Above ground works at Britomart Place & Tyler Streets
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Introduction – Meet the comms team • Nicole Lawton - CRL, Britomart Comms Lead • Michelle Parish – Link Alliance • Biljana Stanic – Martinus • Tammy Dickinson – KiwiRail • John Nottage – Auckland Transport
• • • •
Utilities CPO rooms Smoke curtain C7 rail systems
• • •
Track work Beam strengthening Tunnel work
• •
Station & passenger management Construction support
• •
Blocks of Lines Wider network
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Introduction – Communications overview • Community Liaison Group (CLG) – Meets
quarterly or more regularly as needed, minutes and presentations displayed online
• Britomart Newsletter – General communication, updates, surveys and notifications emailed monthly + displayed online
• Britomart Works Notifications – Official notice emailed 10 working days before disruptive worksas needed + displayed online
• Queries/Complaints received – Tracked and forwarded to relevant team for response
• Email: info@cityraillink.govt.nz • Phone: 0800 CRL TALK (275 8255) - option 1
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Introduction - CLG What is a Community Liaison Group (CLG)?
• Consultation and communication tool used by CRL across all four stations
• Meets quarterly, or more regularly as necessary • Interface between project and the public • Membership inc residents, property owners, businesses and interest groups in each area
• Project information sharing & awareness • Opportunity to monitor and give feedback on the effects of construction on project neighbours/stakeholders
• Formal process, minutes available online 7
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THANK YOU! • Over the next 30 years, AKL will grow by approx. 1million • We are maturing into a world class city, and it is not without growing pains, but the work happening across Auckland now will benefit us all in the future. 9
C1 Community Liaison Group (CLG) close out Mark Youngs – C1 Project Lead
C1 - Agenda • C1 – SPA Building detached from Glasshouse • C1 – Curved wall and Heritage Cabinets installed • C1 – Glasshouse reinstatement on Galway Street side • Auckland Council – Streetscape enhancement works • Auckland Council – Tyler St and Galway St
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C1 – SPA Building detached from Glasshouse
Temporary access to the platform removed including stair cases and glass bridge widenings. SPA building and Glasshouse building physically separated from one another. Lower Queen Street 12
C1 – Curved walls and Heritage Cabinets installed
Curved walls constructed, bluestone pavers installed and heritage elements installed. 13
C1 – Glasshouse reinstatement
Tyler Street side - access still available for ongoing construction contracts
Galway Street side – glass corner reinstated 14
C1 - Auckland Council streetscape enhancement works
Complete Dec 2020 Complete May 2021 Auckland Council Works Plaza Works Deferred
Lower Queen Street 15
C1 - Auckland Council, Tyler St and Galway St
Lower Queen Street
The north tunnel – breaking through to Britomart Station
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Britomart continuing works Richard Jenkins – CRL Ltd Principal Panner
Overview Further construction works are required for the City Rail Link (CRL) at Britomart Station:
• Changes to the track and platform layout to convert Britomart from a ‘terminating’ to a ‘through’ station – that can also accommodate longer trains and a greater number of trains per hour.
• Reconfiguration of underground equipment rooms and ‘back of house’ facilities, including upgrade of various systems.
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Overview • Most of the works will be underground, with construction effects such as noise being ‘contained’ in a way that does not affect neighbours at surface level.
• Wherever possible, larger deliveries of equipment and materials will take place by rail from Quay Park.
• Unavoidably, however, some of the works are required to be undertaken at surface level – particularly in Britomart Place.
• Some of the underground works also require
construction support facilities at surface level – including worker accommodation and delivery of equipment and materials.
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Works at eastern end of station The track layout at the eastern end of Britomart Station (where tracks enter the station from the tunnel) needs to be reconfigured. This will allow trains to enter Britomart at higher speed – enabling a greater number of trains to pass through the station per hour (operation of CRL is based on 24 trains per hour). This requires:
• Excavation within part of Britomart Place to strengthen roof of tunnel [surface level works] • Which then enables part of the underlying support wall in the tunnel throat to be relocated – providing space for track reconfiguration [underground works]
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Works at eastern end of station
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Works at eastern end of station Tunnel roof strengthening works require excavation and construction support area in eastern side of Britomart Place:
• Subject to property access issues being resolved, these works are programmed to commence in late April 2022 and will continue through to the beginning of 2023.
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Works at eastern end of station
To accommodate CRL, existing underground equipment rooms within Britomart Station also need to be reconfigured: • These works have already commenced, with delivery of equipment and materials via the north-eastern corner of the ‘Glasshouse’ in Tyler Street. • Commencing in 2022, part of the room reconfiguration works (‘eastern systems rooms’) will also require construction access from Britomart Place.
• The room reconfiguration works will be undertaken at the same time as the tunnel roof strengthening works so both these construction activities will need to occupy part of Britomart Place through to the beginning of 2023. 23
Works at eastern end of station
A combined site compound will be established on the eastern side of Britomart Place for both the tunnel roof strengthening and room reconfiguration works:
• Maintaining access to adjoining properties and business activities will be a priority. • Approvals are required from Auckland Council to undertake the combined works in Britomart Place – this will address the management of noise, access disruption and other construction related effects. • There will be further consultation with neighbours regarding the management of construction effects. 24
Works at western end of station
The ‘Station Plaza Accommodation’ (SPA) building will remain for another couple of years, so that the building and surrounding Station Plaza can be used as construction support for fit-out works in the CRL tunnels running west from the CPO building to Albert Street:
• Environment Court approval was granted for this in 2021, and some of you participated in the Court process. Strict conditions apply, including for example: o Activity must be completed by 20 December 2023.
o Controls to ensure construction traffic (including concrete delivery) does not affect safe and efficient operation of Tyler and Commerce Streets. 25
Works at western end of station To comply with fire regulations, a ‘smoke curtain’ needs to be installed within the western end of Britomart Station – physical barrier (glass panels in a steel frame) suspended from a roof beam above the bottom of the escalators. The curtain will trap smoke in the event of fire, allowing people to escape up through the Glasshouse without being overwhelmed by smoke.
• To install the smoke curtain, it will be necessary to deliver materials via the north-eastern corner of the Glasshouse in Tyler Street. • Works are programmed for April – October 2022, with delivery of materials from street level as required over this period. 26
Works at western end of station The two outside platforms at Britomart Station (Platform 1 on northern side and what will become Platform 4 on southern side) need to be extended at their western end to future-proof for longer 9-car trains. However, the concourse area at the western end of the platforms currently sits at a lower level and needs to be raised to achieve the longer platforms.
• Will require concrete delivery from construction support facility within Station Plaza (via Tyler Street), using same methodology as that identified for tunnel fit-out works. • Works currently programmed to be undertaken in stages from June 2022 – March 2023. 27
Works at western end of station Railway tracks within Britomart Station currently sit on ballast (gravel). For the two outside platforms (servicing what will become the ‘through’ lines for CRL) it is proposed to replace the ballast with concrete track slab prior to the opening of CRL.
• Will require concrete delivery from both Britomart Place and the construction support facility within Station Plaza (via Tyler Street). • As much concrete as practicable will be delivered from Britomart Place end. • Works currently programmed to be undertaken from January – June 2023 (but this could be brought forward to 2022), with concrete delivery in discrete stages over this period. Will only be possible to work on one track at a time to maintain station operations. 28
Questions
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Wider project update
Tunnel Boring Machine (TBM) • Dame Whina Cooper TBM completed its first of two tunnel drives in 2021
• Travelled 1.6 kilometres, 1051 segment rings
installed and 147,000 tonnes of spoil removed
• TBM being transported to Mt Eden to prepare for the second drive launch
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Aotea Station 2021 2021 • Underground excavation began in April • Underground excavation began in April • Above ground construction of entrance • building Above ground of entrance began inconstruction July. building began in July. • Breakthrough into the C2 tunnels • Breakthrough into the C2 tunnels 2022 2022 • Construction of the station platform level • Construction of the station platform level • Above ground streetscape and urban realm • works Above ground streetscape and urban realm works • Victoria Street entrance construction begins • Victoria Street entrance construction begins 32
Karangahape Station 2021
• Reached the deepest point in Mercury Lane • Completed excavation to B4 in Beresford Square • TBM broke through 23 metres underground and continued to Aotea Station
2022
• Completion of excavation for the station boxes and mined tunnels
• Above ground Mercury Lane station building to begin mid-2022
• Above ground station box in Beresford Square to begin towards end of year
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Mt Eden Station 2021
• Launched the TBM in May • Excavating more than 256 metres of mined tunnel – now completed
• Focus on heavily civil works joining existing networks with CRL
2022
• Preparing for the re-launch of the TBM • Utility works in Basque Park to be completed • Completion of pedestrian bridge at Porters Ave and road-over-rail bridge at Normanby Road
• Beginning of streetscape works and tree planting on Boston Road
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