Examples of Integrated Urban Design with Sustainable Drainage Systems

Transcription

1 THE STORM WATER EXPERTS INGENIEURGESELLSCHAFT PROF. DR. SIEKER MBH SUDS training event Birmingham 14 October 2008 Examples of Integrated Urban Design with Sustainable Drainage Systems Dr. Heiko Sieker, IPS, Berlin, Germany SUDS Training event, Birmingham October 14 th 2008

2 Content New developments Residential areas - Rummelsburger Bucht, Berlin - Potsdamer Platz, Berlin Commercial areas - Hoppegarten - Plötzin Retrofitting Emscher-Catchment City of Potsdam Folie 2

3 Folie 3 Residential Area Rummelsburg

4 Folie 4 Rummelsburger Bucht

5 Folie 5 Rummelsburger Bucht

6 Folie 6 Private properties

7 Folie 7 Private properties

8 Folie 8 Private properties

9 Folie 9 Public space

10 Folie 10 Public space

11 Folie 11 Public space

12 Folie 12 Example: Potsdamer Platz

13 Potsdamer Platz,, Berlin Folie 13 Potsdamer Platz, Berlin

14 Potsdamer Platz,, Berlin Folie 14

15 Nuremberg, assurance company Green roof Folie 15 Fotos: Klaus König Open water area Rainwater harvesting for sprinkler

16 Nuremberg, assurance company Green roof Folie 16 Fotos: Klaus König Open water area Rainwater harvesting for sprinkler

17 Nuremberg, assurance company Green roof Folie 17 Fotos: Klaus König Open water area Rainwater harvesting for sprinkler

18 Nuremberg, assurance company Green roof Folie 18 Fotos: Klaus König Open water area Rainwater harvesting for sprinkler

19 Folie 19 Example: : Birkenstein

20 INNODRAIN Prinziple: Infiltration + Retention + Retention + Drainage Applicable in soils with low infiltration capacity (k f < 10-6 m/s) Activated soil layer (treatment of road runoff) Area demand: only 4 % of connected sealed surface! Side effect: slow down traffic More information: Folie 20

21 Folie 21 Example : INNODRAIN

22 Folie 22 Example : INNODRAIN

23 Folie 23 Example : INNODRAIN

24 Content New developments Residential areas - Rummelsburger Bucht, Berlin - Potsdamer Platz, Berlin Commercial areas - Hoppegarten - Plötzin Retrofitting Emscher-Catchment City of Potsdam Folie 24

25 Folie 25 Example: : Hoppegarten

26 Example Dahlwitz-Hoppegarten Total size: 160 hectare Paved area: 100 hectares Folie 26 Example: Hoppegarten

27 Example : Hoppegarten 100 Hectares!! Folie 27

28 Folie 28 Example: : Hoppegarten

29 Example: : Hoppegarten Folie 29 Fa. Schlei

30 Economical Aspects Calculation and comparison of costs Central solution (Storm sewer with retention pond) Decentral solution (Trough-trench-system as constructed) Variant central decentral Total cost 19 /m² 17 /m² Public part 16 /m² 5 /m² Private part 3 /m² 12 /m² Economical advantages Shift of investment into the future Flexibility: Providing retention as really needed Positive effect on compensation measures Folie 30

31 Example : Commercial Park Plötzin Folie 31

32 Example : Commercial Park Plötzin Folie 32

33 Content New developments Residential areas - Rummelsburger Bucht, Berlin - Potsdamer Platz, Berlin Commercial areas - Hoppegarten - Plötzin Retrofitting Emscher-Catchment City of Potsdam Folie 33

34 Example: Emscher Region Tributary of the river Rhine in Western Germany. Length: 84 km, Catchment area: 865 km² Densely populated: 2.3 million inhabitants Long tradition in steel industry and coal mining Folie 34

35 Folie 35 Subsidence caused by Mining

36 Folie 36 Subsidence caused by Mining

37 The Emscher System 865 km² catchment with 350 km of open courses 40 % of the catchment have to be drained 3 WWTPs 1 STP About 100 Pumping Stations Folie 37

38 Folie 38 The Emscher System

39 The Emscher System Folie 39

40 Emscher Rehabilitation Project Ceasing of mining activities in the 1980 s subsidence stopped some year later In 1990 s chance for rehabilitation was given Estimated project duration ~ 30 years Budget: ~ 4.5 Billion Measures Decentral WWTP Combined Sewers CSO and retention ponds River rehabilitation Folie 40

41 Folie 41 Emscher Rehabilitation Project

42 Folie 42 Problem of Flood Peaks

43 Problem of Flood Peaks m 3 /s Folie 43

44 "The Rainwater Route" Many pilot projects for USWM since the 1990 s Subsidized by Emschergenossenschaft and the Ministry of Environment of the Federal State Folie 44

45 "The Rainwater Route" Folie 45 Fotos: M. Kaiser

46 Stormwater Management Information System (SMIS) Pilot projects are good for demonstration......but effect on catchment level is small Catchment-wide investigation Folie 46

47 Potentials for Disconnection Legende Abkopplungspot bis 5 % 5-20 % % % % % Folie 47 Average Potential: ~ 18%

48 Project "15/15" Target 15% disconnection in 15 years Contract between Emschergenossenschaft, Federal State Ministry and 17 municipalities Storm Water Convention was signed in Oct Folie 48

49 Folie 49 Examples for disconnection

50 Folie 50 Disconnection in Essen

51 Folie 51 Disconnection in Essen

52 Folie 52 Disconnection in Essen

53 Folie 53 Welheimer Mark

54 Folie 54 Welheimer Mark

55 Folie 55 Example: Potsdam

56 Folie 56 Example: Potsdam

57 Integration of SUDS in Urban Planning Integration -> Finding synergy effects Integrate SUDS into (landscape) architecture (Example: Potsdamer Platz) Improve the local water-balance -> cooling effect Slow down traffic (Innodrain) Minimize impact on the environment Reduce costs for commercial developments (Hoppegarten) Stormwater management can be a driver for a transition process (Emscher region) Folie 57

58 Thank you for your attention Folie 58 Ingenieurgesellschaft Prof. Sieker mbh Hoppegarten, Germany