P4b 20120629 panels anna sobiech

dynamic shore of volkerak

Anna Sobiech landscape architecture

dynamic shore of volkerak VO L K E R A K ACC E S I B LE

F O R

P E D E S T R I A N

con ce pt

The Volkerak is the third largest fresh water body in the Netherlands, after the IJsselmeer and the Markermeer. It is located in the province of Zeeland.

It was originally an open transition area between river and sea. After the completion of the ‘Delta works’, in 1969, it was transformed into a freshwater lake with a more or less constant water level. Because of the extensive blooms of toxic cyanobacteria in summer, which form a danger to human and environmental health, the tourism and recreation develops really slow, despite its high land-, en visual qualities.

01

02

accessibility

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vertical and horizontal water circulation caused by high and low tide allows the sedimentation proccess to happen. It is expected to start around the basalt walls. As a result within the time the new islands will appear

poor quality of water

*

fresh watter

first step: closing and improving the existing basalt walls in order to get impermeable barrier. that would allow to keep the devision between water types

brakisch water salt water poor access to the water (Dintelse Gorzen)

03

private properties - areas are fenced - access to the lake is forbidden

project ‘Delta works’: dam system with different water types

04

landforms

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second step: opening the Philipsdam

existing flora and fauna

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water types devision: brakish water fresh water low tide following the closure of the Phillipsdam in 1987 the area was sweet and it attacked the mudflats and buntings on the banks of the Volkerak permanently dry. The bulk of this “new land” came as a nature reserve and gave a place for reach flora and fauna

shore defences:basalt walls along the shore and dikes - installed in the non-tidal lake, to protect the shore, shallow water areas and uncovered sandbanks and salt marshes from crumbling away

05

t i d es

n e xt

t o

t he

Philipsdam

high tide

an d Volker ak sdam western marshharrier

currently at the Volkerak there is a minimal water movement , about 2-3 cm. By opening the Philipsdam there could be a connection with the Notrth Sea. The statistics say that it will influence vertical water movement about 25 % regarding to the tides at the sea shore (f.ex. in Vlissingen). A new tidial lake would not olny have a new water dynamics but as well new sediment transport (morphodynamics). Consequently, high sandbanks, mud flats and salt marshes could happen as a new ecosystems with new flora and fauna

tw o

e nv i r o m ents

w i th

typ i c a l

r ep res e n tati v e

little tern

㻾㼍㼗㻌㼚㼛㼛㼞㼐 㻷㼞㼍㼙㼙㼑㼞㼟㼘㼡㼕㼦㼑㼚㻌㼣㼑㼟㼠

㻾㼍㼗㻌㼚㼛㼛㼞㼐

㼂㼛㼘㼗㼑㼞㼍㼗㻌㻳㼍㼘㼍㼠㼔㼑㼍

㻷㼞㼍㼙㼙㼑㼞㼟㼘㼡㼕㼦㼑㼚㻌㼣㼑㼟㼠

㼂㼛㼘㼗㼑㼞㼍㼗㻌㻳㼍㼘㼍㼠㼔㼑㼍

㻞㻜㻜 㻝㻡㻜 㻝㻜㻜 㻞㻜㻜

㻡㻜

㻝㻡㻜 㻝㻜㻜

㻜 㻙㻡㻜

㻡㻜

㻙㻝㻜㻜 㻙㻝㻡㻜

㻜 㻙㻡㻜

㼏㼙㻌㻺㻭㻼

㻙㻞㻜㻜

great spotted woodpecker

㻙㻝㻜㻜 㻙㻝㻡㻜 㻙㻞㻜㻜

㻞㻜㻜 㻝㻡㻜 㻝㻜㻜

㻞㻜㻜

㻡㻜

㻝㻡㻜 㻝㻜㻜

㻜 㻙㻡㻜

㻡㻜

㻙㻝㻜㻜 㻙㻝㻡㻜

㻜 㻙㻡㻜

㼏㼙㻌㻺㻭㻼

european stonechat sea lavender

sandwich_ tern

㻙㻞㻜㻜

㻙㻝㻜㻜 㻙㻝㻡㻜 㻙㻞㻜㻜

㻞㻜㻜 㻝㻡㻜 㻝㻜㻜

㻞㻜㻜

㻡㻜

㻝㻡㻜 㻝㻜㻜

㻜 㻙㻡㻜

㻡㻜

㻙㻝㻜㻜 㻙㻝㻡㻜

㻜 㻙㻡㻜

㼏㼙㻌㻺㻭㻼

㻙㻞㻜㻜

㻙㻝㻜㻜 㻙㻝㻡㻜

㻢㻦㻜㻜

㻡㻦㻜㻜

㻠㻦㻜㻜

㻟㻦㻜㻜

㻞㻦㻜㻜

㻝㻦㻜㻜

㻞㻠㻦㻜㻜

㻞㻟㻦㻜㻜

㻞㻞㻦㻜㻜

㻞㻝㻦㻜㻜

salicornia saltmarsh cordgrass

little egret highland cow

DYNAMIC SHORE OF VOLKERAK. ANNA SOBIECH Academy of Architecture Amsterdam

㻞㻜㻦㻜㻜

㻝㻥㻦㻜㻜

㻝㻤㻦㻜㻜

㻝㻣㻦㻜㻜

㻝㻢㻦㻜㻜

㻝㻡㻦㻜㻜

㻝㻠㻦㻜㻜

㻝㻟㻦㻜㻜

㻝㻞㻦㻜㻜

㻝㻝㻦㻜㻜

㻥㻦㻜㻜

㻝㻜㻦㻜㻜

㻤㻦㻜㻜

㻣㻦㻜㻜

㻢㻦㻜㻜

㻡㻦㻜㻜

㻠㻦㻜㻜

㻟㻦㻜㻜

㻞㻦㻜㻜

㻝㻦㻜㻜

㻞㻠㻦㻜㻜

㻞㻟㻦㻜㻜

㻞㻞㻦㻜㻜

㻞㻝㻦㻜㻜

㻞㻜㻦㻜㻜

㻝㻥㻦㻜㻜

㻝㻤㻦㻜㻜

㻝㻣㻦㻜㻜

㻝㻢㻦㻜㻜

㻝㻡㻦㻜㻜

㻝㻠㻦㻜㻜

㻝㻟㻦㻜㻜

㻝㻞㻦㻜㻜

㻝㻝㻦㻜㻜

㻥㻦㻜㻜

㻝㻜㻦㻜㻜

㻤㻦㻜㻜

㻣㻦㻜㻜

㻢㻦㻜㻜

㻢㻦㻜㻜

㻙㻞㻜㻜

eurasian spoonbill

fresh water - mud flates

oysters

brakish water - saline marshes

oyster catcher

s pe ci e s

m as ter

p l a n

A

A’

1: 250000

l e d en d

dam

dike

basalt wall

brakish water (depth 6-24m)

DYNAMIC SHORE OF VOLKERAK. ANNA SOBIECH Academy of Architecture Amsterdam

brakish water (depth 2-6m)

brakish water (depth 1-2m)

fresh water

new island (sedimentation process)

salt marshes

slikken mud flates

beach

ferry terminal

marina

bungalow development

watching tower with climbing wall

prog r a m m e sc h e m e

detaile d

plan

the landscape changes create a new layout for accomodation of the new programme.

The proposed activities are located near to the water edge and they are attached to the proposed walking trails

r ou te s

a n d

t i m i ng

sc heme

expanded shore of Volkerak - maximum space to explore while the low tide

im p re s s i o n _ h i gh

im p re s s i o n _ l o w

high tide walk low tide walk walk through natural reservats resting points with accomodation

ti de

ti de

DYNAMIC SHORE OF VOLKERAK. ANNA SOBIECH Academy of Architecture Amsterdam

le gend

dike

basalt wall

brakish water brakish water brakish water (depth 6-24m) (depth 2-6m) (depth 1-2m)

fresh water

new island salt (sedimentationmarshes process)

slikken mud flates

beach

ferry terminal

marina

bungalow development

watching tower with climbing wall