Ngahura Bridge Design presentation

Fenton / Ngahura Street pedestrian bridge and urban realm

Agenda •

Construction update

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Urban realm design

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Traffic access and parking

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Fenton / Ngahura Street bridge design

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Questions and Answers

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North Auckland Line (NAL) Layout

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Reference Design vs Current Scheme – Fenton Street Landing

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Reference Design vs Current Scheme – Fenton Street Landing

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Reference Design vs Current Scheme – Ngahura Street Landing

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Reference Design vs Current Scheme – Ngahura Street Landing

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Spatial relationship with Maungawhau

Mana Whenua Engagement 8

MatÄ oho

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Vehicle Tracking – Fenton Street

Vehicle Tracking – Fenton Street – AT Rubbish 10.3m

Vehicle Tracking – Fenton Street – AT Rubbish 8.3m

The bridge serving the Fenton Street and Ngahura Street community – Piriti Anau 1 Design Concept Ngahura Street Apartments

2 Reference Design Comparison 3 Lifts and stairs 4 Designing for Privacy: Fenton Street Ngahura Street 5 Sun path Analysis 6 Incorporation of MÄ ori Narrative and Art Rail Corridor

Station R Apartments View looking top down Introduction

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Ngahura Street Apartments

Rail Corridor

Station R Apartments View looking top down 1 Design Concept - Shape

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Ngahura Street Apartments

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Current design

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Rail Corridor

Station R Apartments View looking top down 1 Design Concept – What does the bridge comprise of?

Reference design

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Reference design 2 Reference Design Comparison

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✓ Ensure the lifts are through lifts to carry bicycles ✓ Incorporate bicycle push ramps into the pedestrian stairways ✓ Minimise the loss of privacy on adjacent residential sites

Current Scheme: ✓ Lifts are fully accessible and accommodate a variety of mobility modes including bicycles ✓ Stairs incorporate cycle ramps ✓ Glazed Lifts incorporate privacy screening to Station R apartments ✓ Specially designed safety barriers are 1.8 m high throughout ✓ Privacy screening uses opaque glass where required ✓ Clear sight lines along the length of the bridge is maintained using translucent glass

Current design model 2 Reference Design Comparison

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Reference Design – View along Fenton Street 2 Reference Design Comparison

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Current Design – View along Fenton Street 2 Reference Design Comparison

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Reference Design – View along Ngahura Street 2 Reference Design Comparison

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Current Design – View along Ngahura Street 2 Reference Design Comparison

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Stairs and Lift

View facing lift on Ngahura Street 3 Lifts and stairs

• The lift allows a through passage from one end to the other • Lift sized for pedestrians cyclists and mobility scooters • Lift capacity for 26 persons • Lift fully glazed however the panels will have fitted manifestation to achieve a suitable level of privacy to the adjacent apartments • Fully glazed doors to maximise public safety as a crime prevention measure to ensure visibility of those using or waiting for the lifts • Frit design to have a specially commissioned artistic design motif based on the Mana Whenua narrative 31

View facing lift on Fenton Street 3 Lifts and stairs

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The Bridge Barrier comprises solid metal and solid glass panels

Emergency door height Proposed screening options on the bridge barriers will also address privacy concerns, while maintaining an acceptable level of safety and security for bridgeusers from a CPTED perspective

Minimum height

What is variable?

Opacity of the privacy screen outside lift entrance.

Height of the privacy screen outside the lift entrance

✓ ✓ ✓ ✓ ✓ ✓

Safety screening from electrification Safety protection from falling Privacy screening (opaque glass) Clear sight lines along the length of the bridge (translucent glass) 1.8 high (min) Art integration (frit pattern glass)

Inner barrier

Outer barrier

Barrier design

4 Designing for Privacy

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View on the bridge toward Maungawhau 4 Designing for Privacy – CPTED visibility along bridge

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View looking from Fenton Street lift toward Ngahura Street lift View on the bridge toward Maungawhau

4 Designing for Privacy – CPTED visibility along bridge

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Minimise the loss of privacy on adjacent residential sites: Station R

Station R

View from arrow: Lift enclosure

4 Designing for Privacy

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Minimise the loss of privacy on adjacent residential sites: Station R

Station R

View from arrow: Top floor shared space 4 Designing for Privacy

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Minimise the loss of privacy on adjacent residential sites: Station R

View from arrow: Top floor, nearest adjacency 4 Designing for Privacy

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Minimise the loss of privacy on adjacent residential sites: Station R

View from arrow: fourth floor, nearest adjacency

4 Designing for Privacy

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Minimise the loss of privacy on adjacent residential sites: Station R

View from arrow: third floor, nearest adjacency

4 Designing for Privacy

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Minimise the loss of privacy on adjacent residential sites: Station R

View from arrow: second floor, nearest adjacency

4 Designing for Privacy

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Minimise the loss of privacy on adjacent residential sites: Station R

View from arrow: first floor, nearest adjacency

4 Designing for Privacy

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Minimise the loss of privacy on adjacent residential sites: Station R

View from arrow: view showing the pier design holding up the bridge

4 Designing for Privacy

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Minimise the loss of privacy on adjacent residential sites: 3 Ngahura Street

View from arrow: Lift Enclosure

4 Designing for Privacy

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Minimise the loss of privacy on adjacent residential sites: 3 Ngahura Street

View from arrow: Top floor, nearest adjacency

4 Designing for Privacy

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Minimise the loss of privacy on adjacent residential sites: 3 Ngahura Street

View from arrow: Lower floor, nearest adjacency

4 Designing for Privacy

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Minimise the loss of privacy on adjacent residential sites: 3 Ngahura Street

View from arrow: Top floor, midway adjacency

4 Designing for Privacy

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Minimise the loss of privacy on adjacent residential sites: 3 Ngahura Street

View from arrow: Lower floor, midway adjacency

4 Designing for Privacy

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Summer 9 am

5 Sun path Analysis

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Summer 12 pm

5 Sun path Analysis

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Summer 5 pm

5 Sun path Analysis

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Winter 9 am

5 Sun path Analysis

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Winter 12 pm

5 Sun path Analysis

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Winter 5 pm

5 Sun path Analysis

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PIRITI ANAU 1 Form – a result of ergonomic design 2 Function – a result of safety in design

3 Narrative - robust and meaningful 4 Biophilia – respect for nature 5 Contextual - creation/ vulcanism 6 Site specific – engrained 7 Dynamic - sculptural

Synthesis of the form of the bridge

Current 3D model

6 Incorporation of Māori Narrative and Art

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Fenton Street Bridge Narrative Like the Porters Bridge design, the significance of Mataaoho to Maungawhau draws an interesting conceptual opportunity for the design of the Fenton Street bridge. The Fenton Street bridge design parameters are so that its functional A and B points create an organic curve form connecting Ngahura and Fenton Streets.

Conceptually, the fluid nature of the bridge’s elements as it curves, twists and pulls, reveals an opportunity to be likened to the flow of Mataaoho’s volcanic liquid state. Wedged in between an existing juxtaposition of residential and industrial buildings, the bridge is anchored from the ground as if the only way it could appear in place was if it erupted out of the soil itself.

This narrative serves an overarching link to the Porters Ave Bridge that looks at the change of state of the lava flow of Mataaoho to form Karā (basalt), a finegrained, dark charcoal-black stone that occurs when hot lava flow meets the earth’s surface or a mid-ocean ridge and is cooled.

The deity of Mataaoho becomes the protagonist of the Maungawhau precinct.

The new Maungawhau station at the centre, is the living source flowing out and connecting the dynamic fluid structure Fenton Street Bridge and on to Porters Ave Bridge. The Fenton bridge piers are anchors, raising the bridge deck to hold air space above the railway lines.

The metaphorical flow of Mataaoho occurs in the physical as the bridge creates a dual spatial and physical threshold that sees the constant ebb and flow under of unsuspecting commuters on the train.

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6 Incorporation of Māori Narrative and Art

Powerful eruption of lava, landscape change of state from solid rock to velvet flow of hot lava Concept model Natural arch bridge

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1 Artist’s Brief

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We would like to work with an artist to help further deepen this narrative and tell the story of Mataaoho for the wider context of Maungawhau and then help us in our conceptualising the liquid state of Mataaoho in the Fenton Street bridge design.

At present the final materiality of the lift shaft is glass and steel, with concrete piers. We’d be open to discussions with the artist about the colour palettes and materiality to reflect the narrative and the artistic expression of this.

Bridge balustrades and main span: colour and type of materiality in the mesh that ties into the wider narrative and expression of materiality. Surrounding landscape: the urban realm needs to link back and connect to Maungawhau, there’s opportunities to do this through furniture selection, wayfinding, and pavement selection.

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Axonometric showing the two key elements identified for art integration

Outputs required from Artists are: Design drawings and/or models sufficient to obtain approval from the Mana Whenua forum and CRLL. The detail of this will be discussed further at kanohi ki te kanohi hui, and an agreed scope document.

6 Incorporation of Māori Narrative and Art

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1 Artist’s Brief

7 PIRITI ANAU – CO-DESIGN WITH MANA WHENUA ARTIST

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1 Arai – Electrification screen and privacy screen

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2 Roau – Handrail and barrier

3 Ara kurupae – Deck and deck structure 4 Ararewa – Two glass enclosed lifts 5 Arapiki – Two access stairs

4 Axonometric showing the two key elements identified for art integration

6 Pou – Lighting columns along the bridge deck

5 Artist’s Designs

6 Incorporation of Māori Narrative and Art

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Preliminary sketches of lift enclosure

6 Incorporation of MÄ ori Narrative and Art

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6 Incorporation of MÄ ori Narrative and Art

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6 Incorporation of MÄ ori Narrative and Art

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6 Incorporation of MÄ ori Narrative and Art

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6 Incorporation of MÄ ori Narrative and Art

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6 Incorporation of MÄ ori Narrative and Art

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Preliminary sketches of lift enclosure

6 Incorporation of MÄ ori Narrative and Art

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Questions and Answers Feedback requested on: •

Proposed height of the privacy screens at the lift entrance

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Proposed opacity of the privacy screens at the lift entrance

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Opacity study 90% opaque

View facing lift on Fenton Street 67

Opacity study 90% opaque

View facing lift on Fenton Street 68

Opacity study 50% opaque

View facing lift on Fenton Street 69

Opacity study 50% opaque

View facing lift on Fenton Street 70

Opacity study 20% opaque

View facing lift on Fenton Street 71

Opacity study 20% opaque

View facing lift on Fenton Street 72