Fine Dutch Tradition: Depoldering Noordwaard

Transcription

1 Fine Dutch Tradition: Depoldering Noordwaard WSPÓŁCZESNA ARCHITEKTURA KRAJOBRAZU - TRENDY, TECHNOLOGIE I PRAKTYKA; edycja specjalna - Powódź. 14 października 2010, Warszawa (BUW) 14 th October, Warschau Poland with thanks to Gert-Jan Jobse

2 Content 1 The motive of Room for the river 2 Room for the river 3 Depoldering Noordwaard

3 1 Tulips, cheese...

4 1... and watermanagement

5 1 basin of river Rhine

6 1 NL underneath sealevel

7 1 NL land of levees Autoroutes: 2268 km Main levees: 2797 km

8 1 Levee breaches in the past

9 1 1995: almost a catastrophe

10 Room for the river Deltaplan closing the Zuiderzee 1 after a (almost) catastrophe 1995

11 1 heighten the dikes...?

12 1... or heighten the country?

13 1 different type of dikes

14 1 looking for a solution: the tension Optimizing engineering Creating More space playground design solution Accepting Inconvenience

15 1 Two scales: national and regional

16 1 Two scales: national and regional Water in the polder (inside the levees) reducing inconvenience for the people in polders hold, store, drain-away >regional project for each basinarea

17 1 Two scales: national and regional Water in the polder (inside the levees) reducing inconvenience for the people in polders hold, store, drain-away >regional project for each basinarea Water in the riverbed (outside the levees) increasing safety for the people in the polders >national project (Spatial key decision) Room for the river

18 1 the national working method Hold Store Drain-away Commision Watermanagement 21 th century

19 2 Room for the river

20 2 Room for the river policy break: first choice is not to heighten the levees

21 2 Room for the river policy break: first choice is not to heighten the levees Objectives: make it safe from floods and improve spatial quality

22 2 Room for the river policy break: first choice is not to heighten the levees Objectives: make it safe from floods and improve spatial quality Total budget 2.3 billion

23 2 Room for the river policy break: first choice is not to heighten the levees Objectives: make it safe from floods and improve spatial quality Total budget 2.3 billion Planning: Start 2007, completion 2015

24 2 Room for the river policy break: first choice is not to heighten the levees Objectives: make it safe from floods and improve spatial quality Total budget 2.3 billion Planning: Start 2007, completion 2015 Discharge capacity of the river Rhine after completion: 16,000 m 3 /sec (current 15,000 m 3 /sec, future view: 18,000 m 3 /sec).

25 2 not boxing, but judoing

26 2 inspiration from elsewhere Rivieren & inspiratie

27 2 39 Room for the rivier projects

28 2 How will the river be given room?

29 3 Noordwaard in the Dutch Delta Utrecht Rotterdam Dordrecht Gorinchem Noordwaard

30 3 Subjectives depoldering Noordwaard

31 3 Subjectives depoldering Noordwaard Surface area ±4000 hectare (diked area ±2000 hectare)

32 3 Subjectives depoldering Noordwaard Surface area ±4000 hectare (diked area ±2000 hectare) ±60 houses, 10 farmers

33 3 Subjectives depoldering Noordwaard Surface area ±4000 hectare (diked area ±2000 hectare) ±60 houses, 10 farmers 30 houses have to be removed, but people are allowed to stay in the Noordwaard

34 3 Subjectives depoldering Noordwaard Surface area ±4000 hectare (diked area ±2000 hectare) ±60 houses, 10 farmers 30 houses have to be removed, but people are allowed to stay in the Noordwaard Budget ± 300 million (± 150 million for real estate)

35 3 Subjectives depoldering Noordwaard Surface area ±4000 hectare (diked area ±2000 hectare) ±60 houses, 10 farmers 30 houses have to be removed, but people are allowed to stay in the Noordwaard Budget ± 300 million (± 150 million for real estate) Planning: Completion 2015

36 3 Subjectives depoldering Noordwaard Surface area ±4000 hectare (diked area ±2000 hectare) ±60 houses, 10 farmers 30 houses have to be removed, but people are allowed to stay in the Noordwaard Budget ± 300 million (± 150 million for real estate) Planning: Completion 2015 Lowering watertable river Merwede: 1.0 m local, 0.3 m near Gorinchem (about 10 kilometer upstream)

37 1 Noordwaard (present)

38 1 Noordwaard (present)

39 3 National Park Biesbosch Noordwaard

40 3 Noordwaard 1870

41 3 Noordwaard 1870

42 3 Biesbosch Bosch&Slabbers

43 3 Biesbosch Bosch&Slabbers

44 3 Biesbosch Bosch&Slabbers

45 3 Noordwaard (present)