Land7227 studio 7 otara lakes 2014

OTARA LAKE + WATERWAYS UNITEC & NCUT PROPOSALS

CONTENTS

PUKEWAIRIKI: AUCKLAND’S CONNECTING HABITAT3

RESTORING NATURAL SYSTEMS15

A STRATEGIC APPROACH29

RECONNECTING THE COMMUNITY41

WATER TREATMENT53

RE-ENGAGE65

AXIS TO THE PACIFIC79

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1Pukewairiki: Auckland’s Connecting Habitat

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Pukewairiki: Auckland’s Connecting Habitat

Otara

Great Barrier Island

Large Patches

Small Patches

Corridors/Stepping Stones

Current Bird Connectivity

Native Forests of the Auckland Region + Bird Connectivity

The Patch-Corridor-Matrix classifies Auckland’s native

and exotic forests into patches according to Meurk &

Hall Patch-Corridor-Matrix model. The map illustrates

bird connectivity between the Waitakere Ranges, Great

Barrier Island and the Hununa Ranges, each patch

being a habitat for bird breeding and the corridors

acting as feeding spots or stepping stones between

patches. Each patch is categorised on area size, a

large patch is of 25 hectares or greater, a small patch is

between 5-25 hectares and a corridor/stepping stone

is an area of forest that may not be big enough to be

considered a patch but contributes to the connectivity

of birds between patches. The distance between the

two dominant patches within Auckland is growing,

Otara presents an opportunity to act as a significant

patch between these two ranges.

Potential Bird Connectivity

Stage One

Begin wetland plantingRecap the landfill and stabilise the subsiding land

Stage Two

Finish wetland revegitation

Rebuild the Marae

Construct footpath/ cycleways and wharf

Stage Three

Revegetation of all stream buffers

Revegetation of the crater and Highbrook side of the lake

Stage Four

Water quality will begin to stabilise

Increased fauna and habitat quality

10 years

5 years

3 years

First 18 months

Stage Five20 years

Fully established ecosystem and patch that contributes to Auckland’s ecology and bird connectivity

Possible removal of the weir for a fully healthy and functioning ecosystem

Phasing Plan

Master Plan.

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Existing Mangroves

BBQ Area

Wharf

Otara Lake Revegetation Buffer

Open Space/Parkland

Native Revegetation

Footpath/Cycleway

Landfill

Wetland Treatment

Weir

Perspectives

1:3000

Pukewairiki Crater and Ngati Otara Reserve: Auckland’s Connecting Habitat A

A

Silvereye - Silvereyes may occur in almost any wooded habitat, especially commercial orchards and urban parks and gardens.

Bellbird - Bellbirds live in native forest and regenerating forest, especially where there is diverse or dense vegetation

Oystercatcher – Oystercatchers use a wide variety of different coastal habitats. Most commonly sandy beaches, sand spits, shell banks, and rocky shorelines.

Tui - Tui prefer broadleaf forests below 1500 metres but will tolerate quite small remnant patches, regrowth, exotic plantations and well-vegetated suburbs.

Fantail - Fantails exhibit wide tastes in habitat; while the majority of species are found in rainforests fantails exist in most available habitats from deserts and mangrove forests to highly modified agricultural and urban environments.

Kereru - Kereru inhabit a wide variety of forest types: podocarp-broadleaf forest, beech forest, second growth native forest regenerating after logging, small forest remnants, and exotic plantations (especially those with a stream and native shrubs and trees). They also occur in farmland shelterbelts, urban parks, and rural and suburban gardens.

Wetlands – Submerged water plants, emergent water plants, surrounding trees and shrubs all play a number of roles in a wetland to contribute to water purification, flood control and shoreline stability. Wetlands also are considered the most biologically diverse of all ecosystems, serving as homes to a wide range of plant and animal life. Flora in a wetland such as toetoe, clubrush, flax, jointed twig rush, mahoe, nikau etc., provide a food source for native fauna, habitat for invertebrates and they also carry filtration capabilities.

Revegetation – By re-vegetating Ngati Otara Park it will help prevent further degradation of the land and water. Native vegetation provides shelter, feeding, breeding and roosting site for native animals. Using Flora such as Kauri and Kahikatea will reinstate and improve native vegetation, provide habitat, provide connectivity between remnant vegetation and improve the quality of the soils and creek.

Regenerated Flora and Fauna.Transect: Highbrook Drive-Otara Creek

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Res

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Key Stone Specie

Key Stone Specie

Key Stone SpecieKey Stone Species are symbols of diverse ecosystems and healthy bush vitalities. Auckland’s key stone species are tui’s and bellbird’s.

@ A1

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Master Plan.

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Existing Mangroves

BBQ Area

Wharf


Open Space/Parkland

Native Revegetation

Footpath/Cycleway

Landfill

Wetland Treatment

Weir

Perspectives

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Key Stone Specie

Key Stone Specie


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Master Plan.

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Existing Mangroves

BBQ Area

Wharf


Open Space/Parkland

Native Revegetation

Footpath/Cycleway

Landfill

Wetland Treatment

Weir

Perspectives

1:3000


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Key Stone Specie

Key Stone Specie


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Our design focuses restoring the native flora and fauna to Otara. This will consist of approximately 50 hectares of revegetating native bush to three key areas: Highbrook Park (Pukewairiki crater), Ngati Otara Park and the Contact Energy Site surrounding the lake. Through this revegetation of the site the natural ecological processes will begin to clean up the site while creating a native oasis of flora and fauna that not only benefits the community of Otara but all of Auckland. In addition, a network of walkways and cycle ways will be implemented throughout the design to provide an interactive experience of the patch. A series of wetlands and filtration devices will be installed in the upper estuary to catch the sediment in the runoff from the wider catchment. This will create an Otara that will service the future generations to come as a naturally beautiful, vibrant reserve, a reserve the community will be proud of and will be at the forefront of urban, ecological remediation design.

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NORTH CHINA UNIVERSITY OF TECHNOLOGY

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Individual Resume Group4

Name: Shuangyue Wang School: North China University of Technology Major: Landscape and Architecture E-mail: [email protected] Statement: My philosophy of life is work, I will reveal the mysteries of nature, for the benefit of mankind. Name: Jing Qin School: North China University of Technology Major: Landscape Architecture E-mail: [email protected] Statement: I love my major which I picked by myself because it can created beautiful view. People can get fun from our design. I also enjoy myself from the progress of design.

Name: Fengyi Wang School: North China University of Technology Major: Landscape Architecture E-mail: [email protected] Statement: I love the landscape architecture profession, I believe I can create a good landscape in the city, to the people living in the grey building in. When the draw when a tree in the drawings on me, as if I was for the city to create a green and happy. In life I love cooking, Food is indispensable to my life,Whenever I put different foods together to create a delicious, I feel that my life is full of hope.

Name: Yu Han Education School: North China University of Technology Major: Landscape architecture Statement: From the specialized knowledge which I have learned, I am interested in the following things: man and environment, plants and landscape. Name: Haoran Ni Education School: North China University of Technology Major: Landscape architecture

















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2Restoring Natural Systems

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OTARA ESTUARY

OPPORTUNITIESAccelerated return to recreation activities

Accelerated return to food source

Save rate payers millions of dollars in ongoing maintenance

Greatly improve upon current watershed management issuesNatural buffer between the land and ocean, absorbing floodwaters and storm surges

Improve water quality

Improve habitat and biodiversity

Contribute significantly to a healthier Otara Creek. Much of the sediments and pollutants are filtered out as the water flows through the wetlands.

CONSIDERATIONSWater Recreation Restricted to Tidal Flow

Altered Visual Amenity

RE-STORING NATURAL SYSTEMS

CATCHMENT AREA

SCALE 1:2500

Re-claimed Wetlands Mangroves Dredged Channel Tidal Flats Coastal Planting Re-Vegetated Planting Grassed Area Sports Field Marae

HIGH TIDE

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PHASE ONE

• Dredge main estuary channel.• Use dredged sediments new land along shoreline.

• Remove weir.• Plant salt-mash, wetlands species to stabilise earthworks, treating stormwater run-off and leachate from landfill.

PHASE TWO

• Cap landfill with mudcrete*. Lay dredged sediment mixed with soil on top of landfill capping. Plant with native grasses.

• Build path network and roads using mudcrete.

• Re-vegetate existing shoreline with native coastal plants.

*mudcrete is a material made from a combination of dredged contaminated silt and cement.

Tidal Mud Flats Saltmarsh Meadow Riparian Coastal Margin Existing Land

High Tide

Stormwater Discharge

Channel

Sarcocorina quinqueflora Avicennia marina Juncus acutus Apodasmia similis Plagianthus divaricatus Austroderia fulvida Cordyline australis Phormium tenax Melicytus ramiflorus Coprosma repens Leptospermum scoparium

Mertosideros excelsa

TuiKereruKingfisherLizardOyster catcherGodwitCrabsCats eye snailPacific OysterLittle black musselEel

Carex virgata

Constructed Wetland

FLORA AND FAUNA OPPORTUNITIESPHASE THREE

• Re-locate Marae to re-establish sense of place.

• Selectively re-vegetate sports field and eastern boundary.

• Re-introduce aquatic species for food source and improved water quality with native coastal plants.

OUTCOMESRe-claimed wetlands will help mitigate local existing and future pollution inflows.

Dredged sediment used onsite for land reclamation and combined with cement to create a stable building material (mudcrete). Significantly reducing the cost of disposal off site.

Dredged sediment mixed with cement forming mudcrete, permanently stabilises heavy metal contaminants preventing further environmental damage.

Re-establishing the estuary re-stores the natural processes, creating long term sustainability and reduced maintenance requirements. Ecological services, such as phytoremediation planting extract heavy metals and wetlands address stormwater.

Re-activating the estuary with natural tidal flushing, is the fastest and most efficient method of re-establishing contact with the water.

Adding value to the local and wider community, as part of a network that connects to surrounding parks and waterways.

Re-establishing the aesthetic heritage, spiritual and cultural values, by activating a natural functioning waterway.

PHASE ONE



PHASE TWO






High Tide


Channel




Carex virgata

Constructed Wetland












PHASE ONE



PHASE TWO






High Tide


Channel




Carex virgata

Constructed Wetland












PHASE ONE

• Dredge main estuary channel.• Use dredged sediments for new land along shoreline.• Remove weir.• Plant salt-marsh and wetland species to stabilise

earthworks, treat stormwater run-off and leachate from landfill.

PHASE TWO

• Cap landfill with mudcrete*. Lay dredged sediment mixed with soil on top of landfill capping and plant with native species.

• Build path network and roads using mudcrete. • Re-vegetate existing shoreline with native coastal plants.


PHASE THREE

• Relocate marae to establish a new sense of place. • Selectively re-vegetate sports fields and eastern

boundary.• Re-introduce aquatic species for food source and

improved water quality with native coastal plants.

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PHASE ONE



PHASE TWO






High Tide


Channel




Carex virgata

Constructed Wetland












PHASE ONE



PHASE TWO






High Tide


Channel




Carex virgata

Constructed Wetland












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We forget that the water cycle and the life cycle are one. JACQUES COUSTEAU

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By removing the weir and restoring the lake to the natural estuary processes through staged implementation, the waterway can become a place that is ecologically healthy and an asset for the local community.

Currently Otara Lake is polluted and unusable for the local community. A buildup of contaminated sediments has occurred because of the weir, and it was with this in mind that we approached the problem. By maintaining the weir and lake, remedying this situation will take considerable time and money, which will also require ongoing maintenance costs in the future for the community.

Dredged material from the lake is used to create wetlands for filtering polluted runoff as well as a connecting island to Highbrook. Dredged material is also kept and used onsite as a construction material in the form of mudcrete.

Contaminated land from the landfill is also capped with mudcrete in order to halt the leeching into the waterway, and planted with native vegetation. We also felt that it was very important to relocate the marae from this contaminated land to the rehabilitated coastal edge in order to create a sense of place and connection to the waterway.

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A STRATEGIC APPROACH3

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This map/plan is illustrative only and all informationshould be independently verified on site before takingany action.Copyright Auckland Council. Boundaryinformation from LINZ (Crown Copyright Reserved).Whilst due care has been taken, Auckland Councilgives no warranty as to the accuracy and completenessof any information on this map/plan and accepts noliability for any error, omission or use of the information.Height datum: Auckland 1946.

´Map Title

Created: Tuesday, 1 April 2014,2:04:46 p.m. Scale @ A3 1:100000

This map/plan is illustrative only and all informationshould be independently verified on site before takingany action.Copyright Auckland Council. Boundaryinformation from LINZ (Crown Copyright Reserved).Whilst due care has been taken, Auckland Councilgives no warranty as to the accuracy and completenessof any information on this map/plan and accepts noliability for any error, omission or use of the information.Height datum: Auckland 1946.

´Map Title

Created: Tuesday, 1 April 2014,10:56:57 p.m. Scale @ A3 1:8000

CBD NODE

GREENLANE NODE

ELLERSLIE NODE

SYLVIA PARK NODE

OTAHUHU NODE

POTENTIAL OTARA NODE

NODES OF INTENSIFICATION ALONG MOTORWAY MOTORWAY

LEGEND

LINEAR CITY PROPOSAL

HOUSING LOTS

LIGHT INDUSTRY

LEGEND

HEAVY INDUSTRY

GREEN HEART PROPOSAL

INTENSIFICATION TOWARDS COASTAL EDGE

WATERWAYS

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RESTRICTION OF LAKE PROPOSAL HOUSING INTENSIFICATION PROPOSAL

AREAS OF VEGETATION

HOUSING FOOTPRINT

OTARA CATCHMENT

DREDGED LAKE

GREEN HEART

STAGE 1 - BUILD UP OF DREDGED LAKE

GRADUAL RESTRICTION OF LAKE

STAGE 2 - PLANTING OF SALT MARSH

STAGE 3 - MANGROVE ACCUMULATION

DREDGED MATERIAL MOVED UPSTREAM

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WATERWAYS

OTARA CONTEXT

AUCKLANDS CONTEXT

A STRATEGIC APPROACH

- LOGAN CAIRNS, NICK REGAL, LOGAN PENNINGTON, MICHAEL SUN

Large housing allotments based aroundwaterways. We believe there is opportunities to recon�gure and intensify housing aroundthese zones. This will ultimately recon�gurehousing around the lake and waterways.

HOUSING LOTS

WATERWAYS

AREAS OF VEGETATION

HOUSING FOOTPRINT

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Southern Motorw

ay

Southern Motorw

ay

Bairds Road

Spri

ngs

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Great South Road

Allens Road

Pres

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Smales

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Tam

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Hellabys Road

Lady Ruby Dr

Huia Ro

Ormiston Roa

Road

Terraced Housing

Re-vegetation

Education

Local Centre

Estuary restriction

Coastal Walkway

Porous Road Edge

Scale 1:4500

Otara Master Plan

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GREEN HEART HOUSING DEVELOPMENT

KEY

1 - WE PROPOSE FOR THE EXISITNG LARGE SECTIONS TO REMAIN WITHIN THE GREEN HEART OF OTARA. THE UNITARY PLAN PROPOSES THIS AREA TO BECOME INTENSIFIED WITH SMALLER SECTION HOUSING. WE FEEL THESE LARGE SECTIONS SHOULD REMAIN INSIDE THE HEART OF OTARA TO HELP REDUCE THE IMPERMEABLE SURFACE AREA WITHIN THE CATCHMENT. THESE SECTIONS WILL ACT AREA FOR SOAKAGE THIS WILL HELP REDUCE THE EFFECTS OF RUN OFF ON THE LAKE AND DIMINISH THE CARRY ON EFFECTS TO THE LAKE.

2 - TREES WILL BE PLANTED DOWN THE MAIN STREETS OF OTARA. POROUS TREE PITS WILL ALLOW FOR RUN OFF TO BE FILTERED INTO THESE SECTIONS.

3 - POROUS LANES AND STREETS ESTABLISHED THROUGHOUT ADDITIONAL DEVELOPMENTS. THROUGH THE INTRODUCTION OF GREATER PERMEABLE SURFACE AREAS THIS SHALL ALLOW A LOWER IMPACT THROUHGOUT OUR URBAN DESIGN.

4 - SWALES/ RAINGARDENS AND BERMS ESTABLISHED THROUGHOUT THE GREEN HEART OF OTARA. PROMOTING OTARA AS A GREEN LOW IMPACTING URBAN ENVRIONMENT.

5 - REVEGETATION AROUND HOUSING BOUNDARIES.

GREEN HEART HOUSING AXONOMETRIC

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CONCEPTUAL PLAN

CONCEPTUAL SECTION

THIS IS A POSSIBLE LANDFILL INTERVENTION WHICH COULD BE APPLIED TO THE SITE. THIS IS A CONCEPTUALPLAN OF A RECREATIONAL SPACE AROUND OTARAS PASTLANDFILL. THE IDEA OF CAPPING THE CURRENT LANDFILLWITH A LARGE UNDERGROUND WALL TO CONTAIN THE LEACHATE FROM THE SPILLING INTO THE SURROUNDING WATERWAYSAND CASUING FURTHER DEGRADATION TO THELAKE. RE-VEGETATION OF THE LANDFILL SITE WILL HELP CAPTHE AREA AND PREVENT FURTHER SUBSIDENCE.PLANTING IN THIS AREA WILL ALSO HELP REDUCE CONTAMINANTS FROM THE LANDFILL THROUGH THE EFFECTS OF PHYTOREMEDIATION.

LANDFILL INTERVENTION

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HOUSING INTENSIFICATION

REVEGETATION

WATERWAYS

RECREATIONAL PATHWAY

PERSPECTIVE LOOKING EAST AT NGATI OTARA PARK

PERSPECTIVE - OTARA RD. HIGHBROOK CONNECTIONPERSPECTIVE - FROM HIGHBROOK TOWARDS OTARA

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Otara will become the green heart while the quality of the lake, occupations, housing and green networks increases.

We look to propose a green heart concept to Otara where we will intensify the coastal edges with terraced housing and creating an internal catchment where the large lot housing will remain and low impact urban design features will be installed as a filtering system to the lake.

We would like Otara to become a link in Auckland’s linear city where a new node of intensification on Bairds Road next to State Highway One will promote amenity and jobs to the area.

We propose to squeeze part of the lake by dredging the western part of the lake and placing the sediment on the northern and southern sides. The sediment will be planted to create wetlands and salt marshes as addition to the mangroves, to allow for filtration of the sediments enhancing water quality to create a healthier estuarine ecosystem.

A pedestrian bridge will be implemented in to the site where Otara road ends to complete the connection from Ngati Otara Park to Highbrook Park; the walkway will run around the circumference of the lake interlinking with our intensified housing.

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RECONNECTING THE COMMUNITY4

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We propose a three-part Masterplan that can be completed in stages throughout the next 30 years.

Stage One aims to reconnect the Otara community with its waterways by enhancing and restoring the health of the lake and surrounding ecology, through the use of bio-filtration and bio-remediation techniques. Additional to this, we proposed enhancing the existing pedestrian network by connecting the smaller community pockets to the main walkway, completing the shoreline circuit and bridging the estuary between Ngati Otara Park and Highbrook Park.

Stage Two involves creating a culture-driven platform for place-making through passive and reflective interventions such as the symbolic rebuilding of Te Puke o Tara mountain and more dynamic community spaces such as the Waka-Ama pontoon, Marae and new community events center.

In Stage Three we have integrated industry into our proposal as we believe it is, and will continue to be, an important part of the Otara community. The introduction of a bio-textile farming industry as well as the creation of a new business park will provide an economic boost to the area and become a large source of local employment. Additionally we propose the current Contact Energy holding pond to be refitted as a wetland to filter industrial runoff before it enters the lake.

Our proposal is driven by the desire to reconnect the Otara community with their waterway through nature, culture and industry.

OTARA LAKE + WATERWAYS

Group One: Dustyn O’Leary, Genevieve Mrost, Andrea Reid, Brendan Clemens

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Analysis of Otara

Creek status

For the design of pollution sources There are

three main plots, domestic water, industrial

water and suspended sediment.We can use

water purification systems and sludge

treatment systems combined approach to

solve the pollution problem.

Pollution analysis

Transportation AnalysisThe blue part of the design of the road block road simulation, it

can be seen surrounding the distribution of Otara Creekhas a

highway intersection slip road within the community aswell as a

number of available bikes and running several roads.

Water

Residential

Green system

Business

Industrial area

Hydro

Oat

Peas

New

Zealand

flax

Kauri Mangroves

Kiwi Apple

Grapes

Four-

winged

locust

Silver Fern Cattails

Wheat

Plant analysis

Landscape AnalysisFor the situation analysis and case, we consider the use of beads

style landscape design build approach for land planning.Thus

the separation of six district as landscape nodes，from the Maori

Cultural Plaza, educational propaganda Square upstream to

midstream planting parks, sports venues and distribution of

wetlands,then downstream design guru Peter Walker venue, wetlands,then downstream design guru Peter Walker venue,

constitute "since, bearing, transfer, together" the pearl, the last in

series with the greenway.

Vegetation Cover

1959

current

future

Industrial Land Use Residential area

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1996

current

Transition from industrial land, residential changes and changes in vegetation cover, we can see, Otara

region since the sixties of last century's rapid economic development, population increase year by year,

but the vegetation coverage has declined year by year.This shows that the employment pressure industrial

civilization huge impact on the ecological environment, and population expansion brought about by the

city, ecological pressures and sustainable development pressures.

Due to the decrease of vegetation coverage, it is inevitable to make the ecological balance of the area

has been damaged.Therefore, we in the ecological cycle during the theme of landscape restorationhas been damaged.Therefore, we in the ecological cycle during the theme of landscape restoration

design, advocated the formation of "Mussels - Mangrove - Wetlands "natural recovery type landscape.

Among them, the local native mussels as fruitful plants with good water purification and sewage treatment

capacity; mangrove wetlands are also planted in native species.Through this repair model, coupled beads

style landscape nodes, connected in series with each other and then greenways, eventually forming the

overall design.

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1996

current

future

BackgroundAuckland , New Zealand's largest city, the country's industrial,

commercial and economic and trade center.Auckland, North I

sland, New Zealand Auckland region, which has 56 islands, half

of inland towns, half of the seaside town of features makes it a

diversified water world.Auckland, New Zealand in 1841-1865

years second term capital (the former capital of Russell, later years second term capital (the former capital of Russell, later

moved the capital to present Wellington).The world's most

important multinational companies have offices in Auckland,

Auckland, New Zealand, indeed, "economically."Auckland is

New Zealand's foreign trade, tourism portal, is an important

road, rail and air transportation hub.Auckland is New Zealand's

largest and busiest commercial and financial center, and a

number of stock exchanges of New Zealand's largest bank number of stock exchanges of New Zealand's largest bank

headquarters is located here.

Green coverage analysisGreen dots indicate the Otara vegetation coverage ratio.As

can be seen from the figure, the upper reaches of the south

bank of green areas more widely distributed, high vegetation

density.However, downstream rivers and vegetation coverage

was significantly lower North Shore area.was significantly lower North Shore area.

OtaraNew Zealand

OaklandOakland

Otara

District Analysis

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1：3000

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1：3000

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1.4 mussel farming rendering

The region river silt accumulation is serious, affect the local river water quality.

So the first part of the water purification is the handling of silt. Through to measure

the depth of the river silt, xuan main channel in the deep zone has at least 175000

cubic meters of silt deposition in the lake. The silt and a large number of pollutants

at the same time, its main pollutants are "urban" metals, including copper, leand,

zinc, etc.

2.1 Silt situation2. Sludge treatment

silt reuse methodTradcage

Pavingvolcanic rock

siltDredge planting soil

4. Rainwater collection system

1.5 Mussels water composition

We learn from a few years ago "BIO FILTRATION CONNECTION" After this program, proposed the use of clean water

mussels that vision.

1.2 mussel purification process

1.1 mussel farming areas

1. Water mussels

2.2 The use of sludge

Asphalt Brick Plantation soil

To eat, bring

economic effect

Deible

To remove any contaminants

in water, and transformed

into organic fertilizer

purification

Water

Grow quickly, 18

months to mature

Breeding

New Zealand has a

unique local green

shell mussels

Specialty

the cause of clean

water mussel

farming

1.3 Select reason of mussel purification

b、The mangrove area status map

a、The area of mangrove buffer zone range

201019961959

3.2 Status of mangroves

3.1 Mangrove wetland areas

3. Mangrove wetlands purify water

Sludge treatment method:

1, can be used for short-term

dam construction, the flood

control storage;

2, mixed with volcanic rocks

in the manufacture of new

asphalt water imbibition; asphalt water imbibition;

3, fertile and rich nutrition, can

be used to do the plantation

soil.

3.3 Establishment of the mangrove wetland

Increase the species

diversity of the localExisting mangroves,

can reduce the cost

1、have sedimentation of suspended matter;

2、the enrichment of heavy metal absorption;

3、N, P and other nutrients purification of wastewater。

Animal

Purification

Save

3.4 The mangrove wetland purification system

O2Wind

Microbial

Bacteria

New Cells

New Cells

Sewage

Sediment

Biological residue

Permeability about water

O2 CO2、NH3

1、The external principle 2、the internal principle

3.5 The mangrove wetland intention figure

Detailing local

rainwater collection

system

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Typha garden design according to the local folk custom features to sail like

transformation, typha garden is located in the north river, adjacent to

industrial zone beautify the environment, purifying water, and can promote the

local residents and industrial activities closely, and cattails have higher

economic value.Believe that typha garden will be a unique scenery line

Design description:

3、typha garden design

The floor plan

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2

1 1

Crenata

Crassa

Australis

1-1

1:1000

Biological species

Senhousia

Plane surface figure

Crassipes Typha Mangrove Canna

1、Mangrove wetland floor plan

2-2

1:1000

After

Before

Wetland rendering

Plant species

Design description:

Mangrove wetland as the second downstream purification system along the river

near to purify water. The region has a lot of mangrove forest resources, to form

artificial mangrove wetland provides a good condition, also could the design

budget. Mangrove wetland is of great benefit to biodiversity at the same time,

can improve the local biological resources, realize the harmonious development

of man and nature.of man and nature.

Design descriptionPlantation near the local primary school, for the

local pupils fun plantation of mud from the river

silt, realized thereuse of sludge. There are all kinds

of plants and crops plantation, can beautify the

environment at the same time foreating

2、Botanical garden plan

1:500

1:500

N

1:3000

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Design Description

Otara Creek project design is based on the theme of the ecological cycle,

creating a natural river landscape restoration project type. There are multiple

nodes landscape along the river for water pollution, and ultimately a "pearl

chain" connected by greenways.Among them, the main design points mangrove

wetlands, plantations, cattails Park, Maori cultural plaza plots. Mangrove wetlands

purify the river, mud and cattails garden plantations silt from the river, so as to

achieve the purpose of recycling.achieve the purpose of recycling.

Botanical garden1

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4

Watercourse

Traffic routes

Mangroves border

Node

Maori culture square

Education ParkCattail Garden

N

1:5000

An aerial view Otara Creek

The element of Maori culture

1 2

3 4

The specification of Maori culture square In the traditional culture as the theme design of Maori culture plaza is the distribution function of

the square.Among them, joined the Maori culture elements in 1-4. From the entrance to the

layout, many a local flower flower beds, and 2.5 arc-shaped pool as one of the landscape visual

center, the square is the center of Maori culture and landscape landscape wall column, and

finally to both distributed function of the site as the end of "aesthetic rhythm, which play the".

Maori culture square aerial view

Maori culture square Plans1-4 Maori culture landscape pillars 5 pool 6 Flower bed 7 The entrance

Landscape wall and the pool intention

N

1:200

51

An aerial view Otara Creek

The element of Maori culture

1 2

3 4

The specification of Maori culture square In the traditional culture as the theme design of Maori culture plaza is the distribution function of

the square.Among them, joined the Maori culture elements in 1-4. From the entrance to the

layout, many a local flower flower beds, and 2.5 arc-shaped pool as one of the landscape visual

center, the square is the center of Maori culture and landscape landscape wall column, and

finally to both distributed function of the site as the end of "aesthetic rhythm, which play the".

Maori culture square aerial view

Maori culture square Plans1-4 Maori culture landscape pillars 5 pool 6 Flower bed 7 The entrance

Landscape wall and the pool intention

N

1:200

52

Otara Creek project design is based on the theme of the ecological cycle, creating a natural river landscape restoration project type. There are multiple nodes landscape along the river for water pollution, and ultimately a “pearl chain” connected by greenways.Among them, the main design points mangrove wetlands, plantations, cattails Park, Maori cultural plaza plots. Mangrove wetlands purify the river, mud and cattails garden plantations silt from the river, so as to achieve the purpose of recycling.

53

WATER TREATMENT 5

54

Otara

East Tamaki

Highbrook

ALLOCATION OF 3-STAGE WATER TREATMENT DEVICES

A. RETENTION PONDA retention pond is used to manage stormwater runoff to prevent flooding and downstream erosion, and improve water quality in an adjacent river, stream, lake or bay

B. SEDIMENT PONDA sediment pond is a temporary pond built on a construction site to capture eroded or disturbed soil that is washed off during rain storms, protect neighboring properties, and protect the water quality of a nearby stream, river, lake, wetland or bay.

C. WETLANDWetlands are defined as lands transitional between terrestrial and aquatic systems, where the water table is usually at or near the surface or the land is covered by shallow water. Wetlands are an important part of natural ecosystems, providing habitat, reducing downstream flooding, and improving water quality

A.

A.

A.

C.

B.

B.

WATER TREATMENT

RHIZOFILTRATION

55

1. REMEDIATING• Opening of weir to flush the lake’s water

• Dredging of the selected area to be performed to remove silt

• Silt obtained is planted (e.g. community involvment through planting events) on the banks to be treated through rhizofiltration

2. IMPLEMENTING• Immediate construction of floating pool to integrate community with the water

• Pedestrian connections to Highbrook and East Tamaki from Otara

• Introduce first series of floating wetland system as both a water treatment device and ecological expansion device • Implement the 3-stage water treatment network

3. SUSTAINING• Encourage the growth of the floating wetland population to promote biodiversity and ecological connections.

• Maintenance of devices to maximise productivity of water remediation

• Recycling silt collected within the sediment ponds for rhizofiltration, to ensure a fully closed-loop treatment circuit

Scale 1:2500

Ngati Otara Park

Highbrook

East Tamaki

MASTERPLAN

A

B

B’

A’

V

V

V

V

V

P1

P2

P3

P5

P4

56

P1

A

B

A’

B’

Scale 1:800

Scale 1:800

P2

P3

P4

P5

57

A

B

A’

B’

Scale 1:800

Scale 1:800

P2

P3

P4

P5

58

PROJECT BY:

Shayne Noronha

Riyasp Bhandari

Vaughan MacKenzie-Browne

59


60

61

62

63

64

NAME: Hsü Yingyu

REASEARCH INTERESTS:

city design, Vernacular landscape, tourism planning, Waterfront landscape

As you can see in the photo,I have a Samoye.It is lovely, but sometimes naughty.In spite of this,I’m still love him,take care of his diet,clean up his shit,just like he is my family.That’s what I have got to do,right?By the way,my English is so bad.If you can understand,it is really wronged you.:-D Allright，to the point，I hope we can cooperate well,and design this I’m not knowing why it is so.LOL For the horde!

Zi Wang

NAME: Hsü Yingyu

REASEARCH INTERESTS:

city design, Vernacular landscape, tourism planning, Waterfront landscape

As you can see in the photo,I have a Samoye.It is lovely, but sometimes naughty.In spite of this,I’m still love him,take care of his diet,clean up his shit,just like he is my family.That’s what I have got to do,right?By the way,my English is so bad.If you can understand,it is really wronged you.:-D Allright，to the point，I hope we can cooperate well,and design this I’m not knowing why it is so.LOL For the horde!

Zi Wang

Name:：Mengqi DOU Gender：female Age：21 (ps:I’m a Cancer~LOL) Major：Landscape Architecture E-mail：[email protected] Hobby ： Singing, playing video games, reading, hiking and all kinds of sports~

Name:：Wang Wanqing Gender：female Age：22 Major：Landscape Architecture E-mail：[email protected] Hobby：Japanese

Name:：Jiangxing Wu Gender：female Age：21 Major：Landscape Architecture E-mail：[email protected] Hobby：Swimming Dancing







65

RE-ENGAGE6

66

R E - E N G A G E

OF CATCHMENT RIPAIRIAN PLANTING

201552,294

COMMUNITY NETWORK

GREEN NETWORKEMPLOYMENTOPPORTUNITIES

FULL-TIME EMPLOYEES

2021313,766

145km

OF STREAM RIPAIRIAN PLANTING

20

ECOLOGY

CONNECTIONS

EMPLOYMENT

Planting along the streams and water edges to reduce runoff and the level of contaminants

Implement a pathway network to connect the suburbs of Highbrook, Flat Bush, East Tamaki and Otara

Employment generation through community involvement in the planting (local nurseries), construction and

maintenance phase

THE ŌTARA COMMUNITY PROJECT

SPRINGS R

D

TE IRIR

ANGI DR

CHAPEL RD

SIR B

ARRY CURTIS

PARK

TATE P

L

HAMIL

RD

BERRETT PL

WILL

IAM

S CRES

MAYFIE

LD PA

RK

OTARA C

REEK RESERVE

OTARA TO

WN C

ENTRE

JOHNSTO

NES RD

OTARA PA

RK BRID

GE

HIGHBROOK PA

RK

ARWEN P

L

ANTRIM C

RES

EAST TAM

AKI RD

EAST TA

MAKI

HIGHBROOK

FLAT

BUSH

25.5km

67

OF STREAM RIPAIRIAN PLANTING

THE ŌTARA COMMUNITY PROJECT

EAST TAMAKI RESERVE

SIR BARRY CURTIS PARK

ŌTARA CREEK RESERVE + MAYFIELD PARK

NGATI ŌTARA PARK

TAMAKI RIVEREAST TAMAKI

FLAT BUSH

ŌTARA

Ō TA R A C AT C H M E N T

Setting up local nurseries along the reserves like East Tamaki Reserve, Mayfrield Park, Otara Creek Reserve and Ngatai Otara Park on the pathway network not only speeds up the process but localizes employment opportunities.

68

A

B

C

key | 1.8000 @A1

re-vegetated stream corridor

secondary pathway network

Ō TA R A M A S T E R P L A N

proposed nursery locations

ŌTARA CREEK RESERVE + MAYFIELD PARK

NGATI ŌTARA PARK

A pathway network along the stream and connecting the nearby suburbs like Highbrook, East Tamaki and Flat Bush adds amenity value to the setting.

Taking a cue from the Orakei Marae, a nursery could be set up at the Ngati Otara Marae

Similar projects have been implemented in the Auckland region like Project Twin Streams for the rehabilitation of waterways along the Waitakere Ranges.

69

OTA

RA R

D

FRANKLYNE RD

LOVEGROVE CRES

TE IR

IRAN

GI D

RIVE

EAST TAMAKI RD

JOHNSTONES RD

HIGHBROOK PARK

BARRY CURTIS PARK

NGATI OTARA PARK

Restoration along Otara Creek/LakeSetting up nurseries along the way, at the Marae and reservesLeisure path along the Creek

Establishing connection to 10 streets

phase_ONE

OTA

RA R

D

FRANKLYNE

LOVEGROVE CRES

TE IR

IRAN

GI D

RIVE

EAST TAMAKI RD

AVER

TON

PL

JOHNSTONES RD

HIGHBROOK PARK

BARRY CURTIS PARK

NGATI OTARA PARK

BAIRDS RD

PUKEKIWIRIKI PL

SPRI

NGS

RD

phase_TWO

Connection to industryExtending the pathway to connect out to Highbrook and the Industrial Zone of East Tamaki Establishing connection to 20 streets

OTA

RA R

D

FRANKLYNE

LOVEGROVE CRES

TE IR

IRAN

GI D

RIVE

EAST TAMAKI RD

AVER

TON

PL

JOHNSTONES RD

HIGHBROOK PARK

BARRY CURTIS PARK

NGATI OTARA PARK

BAIRDS RD

PUKEKIWIRIKI PL

SPRI

NGS

RD

EAST TAMAKI RD

EAST TAMAKI RD

HAM

ILL

RD

BAIRDS RD

ANTRIM CRES

CLARKSON CRES

ALEX

ANDE

R CR

ES

HILL

S RD

phase_THREE

Creating an integrated amenity networkSetting a template for streets connecting to the walkway networkConnecting the residential areas to the main creek walkway through street

Establishing connection to 33 streets

PHASES

OTA

RA R

D

FRANKLYNE RD

LOVEGROVE CRES

HILL

S RD

TE IR

IRAN

GI D

RIVEEAST TAMAKI RD

AVER

TON

PL

JOHNSTONES RD

HIGHBROOK PARK

SIR BARRY CURTIS PARK

NGATI OTARA PARK

BAIRDS RD

PUKEKIWIRIKI PL

SPRI

NGS

RD

EAST TAMAKI RD

EAST TAMAKI RD

HAM

ILL

RD

BAIRDS RD

ANTRIM CRES

CLARKSON CRES

ALEX

ANDE

R CR

ES

key

15 minutes walk

10 minutes walk

walk start point

70

CONNECTIONA

Walkway and cycleway bidge connection from Ngati Otara Park (left) to Highbrook Park (right) to encourage alternative modes of transport

71

Get full cycle manBlur out the other side, let the nal layout decide that

RECREATIONC

The Otara Scenic Walkway long Ngati Otara Park

PLACE MAKINGB

Bridge view from Ngati Otara Park

72

The two main goals we aim to achieve through our project is the restoration of the degraded stream ecology in the Ōtara catchment and providing employment to the youth. Making

up to 58% of the total population, we recognized the youth as Ōtara’s biggest asset. Ōtara lake sits at the bottom of a massive catchment with over 72 kilometers of waterways

discharging straight into the lake, bringing with it all the contaminants and sediments from farms to residential and industrial zones. Looking at Ōtara creek, from Sir Barry Curtis Park to Highbrook Park as a test model, we aim to set a template for the entire catchment to

help reduce and over the years resolve the problem of the high level of water pollution. By mobilizing young people in the stream restoration project; The Re-engage Project, transfers

power to the community to kick-start a movement that will improve the environment, clean up the lake and provide the youth with necessary skills to become stewards of their

community.

R E - E N G A G ETHE ŌTARA COMMUNITY PROJECT

Natasha Iyer Oraphanh ChanthaphonhZara JawadiKevin Zhu

A Local Project with Regional Benefits

73


74

Education & Preparation1.Improve the education of children about the water pollution.2.The short-term objec2.The short-term objec-tive of the project is to provide the local resi-dents with the job oppor-tunities.3.Tree planting.

Regional radiation & Expansion1.Construction of land-scape node.2.Landscape nodes for the surrounding area and local people inprove the quality of life.3.Landscape nodes’ex-pansion radiation.

City radiation & Connection1.Oakland is a big city in 1.Oakland is a big city in the North Island of New Zealand and a populous city.Useing the expansion of the city improve the connection between cities.

Woods & Transplantation1.The growth of plants need a long period of time.2.Transplant trees to im2.Transplant trees to im-portant nodes or contam-inated area.3.Provide employment opportunities.

Connection & Radiation1.With the expantion of 1.With the expantion of the landscape inprove the connection of the poor and rich Strengthen the relationship between the poor areas and rich areas through the land-scape approach.scape approach.

Stage1 Stage2 Stage3 Stage4 Stage5

OTARA LAKE: RESERVE AND BREATH SITUATION & STRATEGY

PART 1

Current situationlight industrial Commercial office Power stationIndustrial areaPrimary schoolRefuse landfillRefuse landfill residential residential residential residential residential Function

Water platformMan-made landscape areaWetland landscape areaSports and resting areaBicycle trails areaBicycle trails exportsBicycle trails exportsBicycle trails areaHighbrook parkNgati Otara parkMayfield parkOtara Creek ReservePower stationRestidential areaRestidential areaIndustrial wetland areaWeateyard wetland

OTARA LAKE: RESERVE AND BREATH RESERVE & DESIGN

PART 2

Wildlife-forest, meadow, wetland, corridorsWaters-runnels, pools, irrigation heads, filters Humans-paths, roads, entries, walls, terraces, overlooks, platforms

Humans Waters Wildlife

75

OTARA LAKE: RESERVE AND BREATH RESERVE & DESIGN

PART 2

Wildlife-forest, meadow, wetland, corridorsWaters-runnels, pools, irrigation heads, filters Humans-paths, roads, entries, walls, terraces, overlooks, platforms

Humans Waters Wildlife

76

Sky

Water

Land

77

78

Introduction Otara lake restoration landscape design is in the North Island of New Zealand

South Oakland Otara lake. Otara lake was formed in 1968 and a perennial water

storage dams results, Otara Lake is about 50 hectares (ha) in area and receives

runoff from a catchment area of approximately 3,500 ha. The construction of the

weir and the subsequent changes in the flushing characteristics of the lake

has resulted in a number of significant changes in the lake environment. The

impoundment resulted in sedimentation within the lake, and the changes in the

tidal regime resulted in expansion of mangrove distribution with Otara Lake.

Copper, lead and zinc pollutants from light industry to directly or indirectly

lead to a decline in water quality of discharged water, land fill leachate

increased River pollution.The gap between rich and poor of local residents have

led to estrangement, rich region upstream to downstream water dumping causing

water of the poor areas getting worse.

Our design philosophy is to control pollution, improve water quality to

improve Otara lake environment, so as to provide comfort and convenience at the

same time to teach the local people to the lake with the local people,

preliminary planning in 50 years to let people get rid of the habit of

littering, having planting and love Forest Education for adolescent, narrowing

the wealth rub board psychological barriers, fundamentally eradicate local

environmental problems Otara.This design use the bike trails series "gem chain"

to connect the various landscape, places offer training place for people and to

enjoy the beautiful scenery.

79

AXIS TO THE PACIFIC 7

80

family typologies in otara compared to greater Auckland source:2006 census

ethnic groups in the manukau region including otara compared to greater auckland and new zealand as a whole

above: ethnicity in papatoetoe/otara ward as in 2013 census

existing open space networkŌtara already has quite a good area of open space, the issue however may be quality/useability (map inspired by the GIS work of Shayne Noronha)

connection: 500m to 1500 from town centre

Ōtara is a compact suburb, with less than 1500m from town to lake encompassing retail, education and housing. Hence it has the potential to be an extremely live-able, connected suburb (map inspired by the GIS of Shayne Noronha)

N

wahi tapu sites and view shafts from otaraApart from the link to Motutapu there are other significant wāhi tapu that should be referenced

The 2006 and 2013 census figures confirm Ōtara’s position since the 70’s as NZ’s most ethnically diverse, and youngest suburb, with over half the residents under 25 years. It is a culturally diverse area which demands solutions which take into account the cultural narrative of the area. While it is an easy target for media and others who wish to portray it as the Harlem of the south, even a handful of field trips have exposed us as a class to a strongly committed community. Recent initiatives have had marked success, including Garden to Table and the Ōtara Health Charitable Trust, while others such as the Glenn Family Foundation are also following. The demographic features combined with other possible future trends make this potentially an extremely influential area for Auckland in the years to come, while the high percentage of ownership of houses by Housing NZ means that larger scale interentions are possible with government assistance.

the otara demographic : The young ones!

Phytoremediation is a technology that utilizes plants to remove and degrade contaminants found in soil, groundwater, surface water and atmosphere. Plants have the potential to be useful in wastewater and soil cleanup, due to their ability to evapo-transpirate groundwater, and produce enzymes that help in the degradation of contaminants found in soil and water. Due to the high toxicity of leachate, phytoremediating plants would have to be used as a subsequent process in the treatment of toxins (Granley & Truong.2012)

Plants can also be used as a natural rhizomatic cap for a land fill. Through dense production of rhizomatic and capillary roots, hybrid poplar trees have the ability to provide a dense matting that prevents water from penetrating into the core of the land – fill. Natural caps have the po-tential to replace synthetic caps, by creating a “sponge and pump” system water is discouraged from penetrating the caps. ( Poplar technology)

These systems used in a combination of rain-garden/ swales and wetland interventions has the potential to provide a natural environment for cleansing of leachate but also provides habitat for local wildlife, improved aesthetics of the site, and reduced operational and maintenance costs. By creating a closed loop system that collects the leachate aswell as road runoff that is then applied to the capped landfill, any potential of leachates being deposited in the Otara Lake are prevented.

phytoremediation as a solution for otara

Dewatering• Mechanical• Geobag• Air Drying

Wetland Construction• Land Based• Floating Mats

Phytoremediation

Dredging• Cutter Suction• Barge Mounted Excavatorare some of the possible treatments

the catchmentThe total area of the Ōtara Creek catchment is 3,487 Ha. According to the Manuakau City District Scheme this is broken into 1363 Ha of Residential (including schools and reserves), 324 ha Industrial, 22 ha Commercial, with 750 Ha remaining for future development. Ōtara Lake is approimately 50ha in size, formed by the addition to the creek of the weir in 1968 (as above). The top of the weir is approximately at sea level; it is over topped around half tide each tidal cycle, allowing water to flow in and out of the lake. With the lake unable to fully flush out both sediment and additional leachates have severly affected the quality of the lake, leading to a loss in lifestyle for the residents -fishing and playing in the water are now a distant memory. Several subcatchments can effect the quality of the lake, predominately Flatbush, but including: Mayfield, Lorien, Glibert, Rongamai, Hillary, Power Station (Hell-bays), Spring (Leonard), Kerwin, Lovegrove, Ngati, Ōtara Stream, so any remedial measures potentially have to take into account a large area.

In 1968 the then NZED opened the Ōtāhuhu A Power Station. While this has been decom-missioned the Ōtāhuhu B is still in operation today. Ōtara Lake is a result of the weir used by this power station (or Contact Energy) to control their intage of water, used in the process. Contact cool the water, then once it has reached a certain temperature return it to the lake below the weir. The presence of the weir has led to silt build-up, mangrove growth and other side effects the community feel are undesirable. Contact Energy were signatories of the 1994 Accord, but as yet nothing has happened.

otahuhu B/ contact energy

81

family typologies in otara compared to greater Auckland source:2006 census

ethnic groups in the manukau region including otara compared to greater auckland and new zealand as a whole

above: ethnicity in papatoetoe/otara ward as in 2013 census

existing open space networkŌtara already has quite a good area of open space, the issue however may be quality/useability (map inspired by the GIS work of Shayne Noronha)

connection: 500m to 1500 from town centre

Ōtara is a compact suburb, with less than 1500m from town to lake encompassing retail, education and housing. Hence it has the potential to be an extremely live-able, connected suburb (map inspired by the GIS of Shayne Noronha)

N

wahi tapu sites and view shafts from otaraApart from the link to Motutapu there are other significant wāhi tapu that should be referenced

The 2006 and 2013 census figures confirm Ōtara’s position since the 70’s as NZ’s most ethnically diverse, and youngest suburb, with over half the residents under 25 years. It is a culturally diverse area which demands solutions which take into account the cultural narrative of the area. While it is an easy target for media and others who wish to portray it as the Harlem of the south, even a handful of field trips have exposed us as a class to a strongly committed community. Recent initiatives have had marked success, including Garden to Table and the Ōtara Health Charitable Trust, while others such as the Glenn Family Foundation are also following. The demographic features combined with other possible future trends make this potentially an extremely influential area for Auckland in the years to come, while the high percentage of ownership of houses by Housing NZ means that larger scale interentions are possible with government assistance.

the otara demographic : The young ones!

Phytoremediation is a technology that utilizes plants to remove and degrade contaminants found in soil, groundwater, surface water and atmosphere. Plants have the potential to be useful in wastewater and soil cleanup, due to their ability to evapo-transpirate groundwater, and produce enzymes that help in the degradation of contaminants found in soil and water. Due to the high toxicity of leachate, phytoremediating plants would have to be used as a subsequent process in the treatment of toxins (Granley & Truong.2012)

Plants can also be used as a natural rhizomatic cap for a land fill. Through dense production of rhizomatic and capillary roots, hybrid poplar trees have the ability to provide a dense matting that prevents water from penetrating into the core of the land – fill. Natural caps have the po-tential to replace synthetic caps, by creating a “sponge and pump” system water is discouraged from penetrating the caps. ( Poplar technology)

These systems used in a combination of rain-garden/ swales and wetland interventions has the potential to provide a natural environment for cleansing of leachate but also provides habitat for local wildlife, improved aesthetics of the site, and reduced operational and maintenance costs. By creating a closed loop system that collects the leachate aswell as road runoff that is then applied to the capped landfill, any potential of leachates being deposited in the Otara Lake are prevented.

phytoremediation as a solution for otara

Dewatering• Mechanical• Geobag• Air Drying

Wetland Construction• Land Based• Floating Mats

Phytoremediation

Dredging• Cutter Suction• Barge Mounted Excavatorare some of the possible treatments

the catchmentThe total area of the Ōtara Creek catchment is 3,487 Ha. According to the Manuakau City District Scheme this is broken into 1363 Ha of Residential (including schools and reserves), 324 ha Industrial, 22 ha Commercial, with 750 Ha remaining for future development. Ōtara Lake is approimately 50ha in size, formed by the addition to the creek of the weir in 1968 (as above). The top of the weir is approximately at sea level; it is over topped around half tide each tidal cycle, allowing water to flow in and out of the lake. With the lake unable to fully flush out both sediment and additional leachates have severly affected the quality of the lake, leading to a loss in lifestyle for the residents -fishing and playing in the water are now a distant memory. Several subcatchments can effect the quality of the lake, predominately Flatbush, but including: Mayfield, Lorien, Glibert, Rongamai, Hillary, Power Station (Hell-bays), Spring (Leonard), Kerwin, Lovegrove, Ngati, Ōtara Stream, so any remedial measures potentially have to take into account a large area.

In 1968 the then NZED opened the Ōtāhuhu A Power Station. While this has been decom-missioned the Ōtāhuhu B is still in operation today. Ōtara Lake is a result of the weir used by this power station (or Contact Energy) to control their intage of water, used in the process. Contact cool the water, then once it has reached a certain temperature return it to the lake below the weir. The presence of the weir has led to silt build-up, mangrove growth and other side effects the community feel are undesirable. Contact Energy were signatories of the 1994 Accord, but as yet nothing has happened.

otahuhu B/ contact energy

82

motutapu to otaraaxis to the pacific

connection

83

phases

1 2 3

masterplan

otara to m

otutapu

N

bb

c

1

2

A A.axis .cultural hub intensification

numbers and letter refer to perspectives and cross sections on following pages

84

3

Cross-section: New Pool at Ōtara Lake Cross Section: Floating plant mats provide Phytoremediation, Art Installation & reference axis on Ōtara Lake

x-sections

1

2

connection within otara: connection to the south pacific

new perspectives

85

1

2

connection within otara: connection to the south pacific

new perspectives

86

This study concentrated on the connection of Otara in South Auckland to Motutapu Island in the Waitemata Harbour and to the Pacific Islands: physically, culturally and historically. The idea of a new axis and Tamaki connection enabled us to create a strong sense of identity and a new focus for the community.

This new axis along Otara Road formed a strong link to Motutapu Island, long held wahi tapu site of the Ngai Tai Iwi. It reconnects the existing city centre to the Otara Lake. The new road intensifies the residential and commercial zones, reinforces cultural diversity and retains education and employment in the area. Ecological improvements will be made through a series of interventions employing phytoremediation to the restore the health of the waterways.

Re-appropriation Otahuhu Power Station A will serve as a new culture and arts centre that will raise the profile of Otara and bring valuable investment and interest to the area. By connecting Otara township and the lake to the Pacific, Otara will become the new ecological and cultural centre of South Auckland. This design will inspire the community and create a strong sense of identity and reinforce Otara’s cultural connections.

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88

89

90

91

Land7227 studio 7 otara lakes 2014

Documents

area of forest

regenerating forest

significant patch

aucklands native

beech forest

habitat quality

small forest remnants

small remnant patches