Carbine Creek: Reconstructing an Industrial Stream

Carbine Creek

Page 1

Carbine CreekReconstructing an Industrial Stream

Alex SmithID 1347248

[email protected]

Page 2

Site Location

Mt Wellington Industrial Area Bowden Road

Carbine Road to the Tamaki River

Page 3

Carbine CreekContents

2 - Site Location

The rational behind the design

5 - Case StudySweetbrook Stream Restoration, Staten Island New York

6 - Site Analysis

13 - Design DevelopmentInitial concepts and workings

16 - Final ConceptPlans and Sections

22 - Planting PlanAn introduction to some region wide issues

Page 4

The rationale behind the design

Marine and Aquatic Ecologies

contaminants, such as sediment, heavy metals and other

large quantities quickly, rather than slowly soaking through

To improve the ecological health and viability of the Tamaki estuary and its waterways, the

through must be better treated, it’s quality improved and it’s amounts reduced, something that has been known

Tamaki Estuary

Catchment

Waitakere

Ranges

Habitat

Hunua

Ranges

Habitat

Connecting “Bird Reserviors”

Terrestrial Ecology

poor connectivity of the isthmus landscape for native forest birds

continued viable populations birds must be able to move

However the Mt Wellington industrial area (the location

Storm Water, Streams, Catchments

More street trees and vegetation

along stream corridors may be

a option that could improve this

Carbine Creek

Page 5

Top:

Bottom: The completed restoration, with natural streambed and lush riparian

Case StudySweetbrook Stream Restoration, Staten Island New York

challenges that renovating an urban stream to state that even resembles the

Page 6

Site AnalysisIntroduction

Hamlins Hill Regional Park and the large Sylvia Park Shopping Mall and

Carbine Creek

Page 7

Site Analysis

Topography

-

History

The Sylvia Park region has been subject to industrial and commercial development since WW2, with the construction

appeared on the apparently recent Bowden Road, and since then the sections between them have been progressively

2008 1996 1956

Site AnalysisHydrology and Stormwater System

1:10,000

Pond to the where it disappears into a tunnel at the railway lines, with

Carbine Creek

Page 9

Photographic SurveyStream Environment

From Carbine Road to the Weir the stream runs

weir through a tidal channel (3) and empties into the

Site Analysis

LegendPopulation DensityPopDensity

0 - 8

9 - 18

19 - 27

28 - 41

42 - 74

Legend

No_Qual_12

HS_Qual

Uni_Qual

Other

Coast

LegendPopulation DensityPopDensity

0 - 8

9 - 18

19 - 27

28 - 41

42 - 74

Legend

No_Qual_12

HS_Qual

Uni_Qual

Other

Coast

LegendCoast

km_radius

Roads_cl

No_Qual_12

HS_Qual

Uni_Qual

Other

Census EarningsEarnings

0

1 - 20200

20201 - 27300

27301 - 34900

34901 - 48400

Census_extent

Legend

No_Qual_12

HS_Qual

Uni_Qual

Other


0

1 - 20200

20201 - 27300

27301 - 34900

34901 - 48400

LegendCoast

km_radius

Roads_cl

No_Qual_12

HS_Qual

Uni_Qual

Other


0

1 - 20200

20201 - 27300

27301 - 34900

34901 - 48400

Census_extent

Legend

No_Qual_12

HS_Qual

Uni_Qual

Other


0

1 - 20200

20201 - 27300

27301 - 34900

34901 - 48400

The site has been subject to industrial development since the

-

ness whose occupants activities (such as industrial processes

-

not seek a quality environment and no great amenity will be

to pressure to be converted to other land use types, such as

-

cation and income points to a population suited to the current

improvements made on the site must be designed around the

Population Density versus Level of Education

Individual Incomes versus Level of Education

Carbine CreekPhotographic SurveyStreet Environment

PAGE 11

amenity planting visible in these photos (3, 2, 1)

on the site, although one industrial owner

Page 12

Photographic SurveyIndustrial Sites

and distributors (1) and limited retail (5) scattered

new buildings, all being built or rebuilt since

Page 14

a reason to reinstate Carbine Creek would be

Tamaki Estuary edge, and connecting to this may

also aide pedestrian and cycling mobility through

Sylvia Park

Hamlins Hill

Tamaki Estuary

The Site

Proposed Coastal Walkway Possible Carbine Creek Walkway

Design DevelopmentInitial concepts

Surrounding Industry Surrounding Industry

to pass. They also shade the stream, reducing it’s water

stabilise the streambanks.

Rocky stream environment oxygenates and slows stream water, also providing

Stream banks allow for a

1.5m

Stream width and depth

habitat types

Stream width averages 4 m wide. Design is intended to incorporate the current

greater area.

Water permeable Gabion baskets and other hard landscaping form retaining walls where needed.

Carbine Creek

Page 15

Design DevelopmentConcepts and workings

Initial Retaining Wall Concept

Initial Retaining Wall and Seat Concept

Page 16

New Stream Centre line

A retaining wall that allowed people down to the

Far Right Top: How the walls could mesh with the

Far Right Bottom: An experiment with a meshing

Right Bottom: Experiment to determine the ramps

0

6

2

4

8

100 200 300

Elevation (m) Scale1?200

Distance, Scale 1/500

In order to match the streams current stream bed level, the recreated stream will -

Carbine Creek

Page 17

A

A’ B

B’

C

C’

C

D’

E’E

Carbine R

oad

Carbine R

oad

Timaru Place

Final ConceptPart 1- Stream Reconstruction

-

A

B

C

D Between Carbine Road and the diversion point the concrete stream bed

E

channel along the remaining concrete stream

F

baskets they allow water to pass through and

The Stream banks are planted with a variety

N

A

A

G

F

F

F

B

C

D

E

Region wide issues

C

D’

-

Cutting a channel into the concrete steam bed is also crucial as it provides a

-

-

supporting the stream bank, the stream bed is natural stone, not smooth cast

Carbine Creek

Page 19

Final ConceptStrategy Part 2

0

6

2

4

8

Elevation (m)

A-A’

0

6

2

4

8

Elevation (m)

B-B’

0

6

2

4

8

Elevation (m)

C-C’

Held in place by their massive weight, their wire mesh construction allows them

colonised over time by grasses and other plants, eventually becoming a stable

Baskets Foundations

ecologies it represents, the retaining walls will be constructed as to ramp

1:200

Region wide issues

D-D’

0

6

2

4

8Elevation (m)

E-E’

Restricted dimensions and buildings located very close to the stream cor-

-

ous stream edge carex species to provide visual interest and help to stabilise

Carbine Creek

Page 21

Additional street trees to supplement those already planted by council and

A. B.Permeable Paving could help divert stormwater into the ground,

-

C.

their design the will allow soakage into the ground or drain into a

Final ConceptStrategy Part 2: Street Environment

A

B C

Image: Copyright Firth

Page 22

Final ConceptStrategy Part 3: Private Property

solutions such as permeable paving are inappropriate, others solutions could

A

B

C

A. B.

Modular systems such as the one picture can reduce the space

C.

their design the will allow soakage into the ground or drain into a

Carbine Creek

Page 23

Carbine Creek

Planting Zone Schedules Soft Landscape Stream Edge Mix (SLM) Code Botanical

Name Common Name

Spacing Height % of Mix

PB Size Total

CV Carex virgata Small Swamp Sedge

0.5m ctrs 0.8m 30 3 75

CS Carex secta Purei 0.5m ctrs 1m 60 8 45

CA Cordyline australis

Cabbage Tree

n/a 8 10 3 6

Hard Landscape Stream Edge Mix (HLM) Code Botanical

Name Common Name


PB Size Total

CL Carex lessonia Ruatahi

0.5m ctrs 1m 60 3 105

CD Carex dissita Flat Leaved Sedge

0.5m ctrs clumped

1m 40 3 70

Transition Zone Stream Edge Mix (TZM) Code Botanical

Name Common Name


PB Size Total


0.5m ctrs 1m 30 3 26


0.5m ctrs clumped

1m 20 3 9


0.5m ctrs 0.8m 15 3 5



Cabbage Tree

n/a 8 5 3 3

Note: Species of the Hard mix are to gradually intersperse with those of the soft mix to form a gentle transition between the two.


Name Common Name


PB Size Total


0.5m ctrs 0.8m 30 3 75



Cabbage Tree

n/a 8 10 3 6


Name Common Name


PB Size Total


0.5m ctrs 1m 60 3 105


0.5m ctrs clumped

1m 40 3 70


Name Common Name


PB Size Total


0.5m ctrs 1m 30 3 26


0.5m ctrs clumped

1m 20 3 9


0.5m ctrs 0.8m 15 3 5



Cabbage Tree

n/a 8 5 3 3



Name Common Name


PB Size Total


0.5m ctrs 0.8m 30 3 75



Cabbage Tree

n/a 8 10 3 6


Name Common Name


PB Size Total


0.5m ctrs 1m 60 3 105


0.5m ctrs clumped

1m 40 3 70


Name Common Name


PB Size Total


0.5m ctrs 1m 30 3 26


0.5m ctrs clumped

1m 20 3 9


0.5m ctrs 0.8m 15 3 5



Cabbage Tree

n/a 8 5 3 3


Steam Bank Mix (SBaM)

Code Botanical Name

Common Name


PB Size Total

PC Phormium cookanium subsp. hookeri

Coastal Flax

1m ctrs clumped

1.5 m 65 8 2

CF Cortaderia fulvida

Toetoe 1m ctrs clumped

1.5 m 35 8 4

Site Boundary Mix (SBM) Code Botanical

Name Common Name


PB Size Total


Coastal Flax

1m ctrs clumped

1.5 m 40 8 90

SP Sophora prostrata Dwarf

Kowhai

1.5m 2m 5 28 3

HS Hebe stricta Koromiro

1 m clumped

1-2 m 30 12 67

CR Coprosma robusta

Karamu 1 m clumped

5 m 15 12 34


Cabbage Tree

1 m ctrs clumped

8 m 5 8 11

CD Rhopalostylis sapida

Nikau 1m ctrs clumped

5 m 5 18 11

Note: -Plants notes to be clumped are to be arranged in groups of 3 or more, interspersed with the other plants. -Hebe stricta is an attractor of insects -Coprosma Robusta produces copious amounts of fruit for birds. -Cordyline australis and Rhopalostylis sapida to be clumped in threes or more within other vegetation, but no closer than 3 m to eachother. Specimen Trees and Plants

Code Botanical Name

Common Name

Spacing Height PB Size Total Notes

CU Cyperus ustulatus

Giant umbrella sedge

1 m ctrs 1.5 m 3 12 Sharp edged leaves make this ideal for control of people.

PT Podocarpus totara

Totara 9 m 10 m 95 1

AE Alectryon excelsus

Titoki 6 m 8 m 95 2 For use as a specimen tree for Public Amenity. Provides food for birds

VL Vitex luciens Puriri 6 m 10 m 95 3 Specimen Tree, fast growing and year round food resource for native birds

ST Sophora tetraptera

Large Leaved Kowhai

4 m 8 m 18 1 Large Abundance of Flowers in Spring

Site Boundary Mix (SBM) Code Botanical

Name Common Name


PB Size Total


Coastal Flax

1m ctrs clumped

1.5 m 40 8 90

SP Sophora prostrata Dwarf

Kowhai

1.5m 2m 5 28 3

HS Hebe stricta Koromiro

1 m clumped

1-2 m 30 12 67

CR Coprosma robusta

Karamu 1 m clumped

5 m 15 12 34


Cabbage Tree

1 m ctrs clumped

8 m 5 8 11

CD Rhopalostylis sapida

Nikau 1m ctrs clumped

5 m 5 18 11

Note: -Plants notes to be clumped are to be arranged in groups of 3 or more, interspersed with the other plants. -Hebe stricta is an attractor of insects -Coprosma Robusta produces copious amounts of fruit for birds. -Cordyline australis and Rhopalostylis sapida to be clumped in threes or more within other vegetation, but no closer than 3 m to eachother. Specimen Trees and Plants

Code Botanical Name

Common Name

Spacing Height PB Size Total Notes

CU Cyperus ustulatus

Giant umbrella sedge

1 m ctrs 1.5 m 3 12 Sharp edged leaves make this ideal for control of people.

PT Podocarpus totara

Totara 9 m 10 m 95 1

AE Alectryon excelsus

Titoki 6 m 8 m 95 2 For use as a specimen tree for Public Amenity. Provides food for birds

VL Vitex luciens Puriri 6 m 10 m 95 3 Specimen Tree, fast growing and year round food resource for native birds

ST Sophora tetraptera

Large Leaved Kowhai

4 m 8 m 18 1 Large Abundance of Flowers in Spring

the ground letting water pass over them, preventing erosion by slowing the

Region wide issues

Page 24

N

Job Title

For

At#Street

#City

#Project Name

#Client

Drawn

Creation Date

Plot Date

Checked

#CAD Technician

3/11/11

#Architect

09/06/2010

ScaleDrawing Number

ALL DIMENSIONS TO BE VERIFIED ON SITE

Drawing Title

1:200102

planting plan

PT

VL

VL

ST

VL

AE

AE

TZM Mix

SLM Mix

SBM Mix

HLM Mix

12 CU

SBaM Mix

Grass

A

A’ B

B’

C

C’

C

D’

E’E

Carbine R

oad

Carbine R

oad

Timaru Place

N1:200

Documents

Carbine Creek: Reconstructing an Industrial Stream