Safety: Example Schelde. The SIGMAPLAN 1977 Upgrade of safety level is necessary.

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Safety: Example Schelde

Transcript of Safety: Example Schelde. The SIGMAPLAN 1977 Upgrade of safety level is necessary.

Page 1: Safety: Example Schelde. The SIGMAPLAN 1977 Upgrade of safety level is necessary.

Safety: Example Schelde

Page 2: Safety: Example Schelde. The SIGMAPLAN 1977 Upgrade of safety level is necessary.

The SIGMAPLAN 1977

Page 3: Safety: Example Schelde. The SIGMAPLAN 1977 Upgrade of safety level is necessary.

Antwerpen : overschrijdingslijn hoogwaterstanden

3697223

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Terugkeerperiode (jaar)

Data 61-75 (Theuns) Data 71-90 (Claessens) Data 71-97 (Taverniers) Prognose (2050) Prognose (2100)

Upgrade of safety level is necessary

Page 4: Safety: Example Schelde. The SIGMAPLAN 1977 Upgrade of safety level is necessary.

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LIERTEMSE

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DUFFELITEGEM

SCHELLE

LOKEREN

VIERSEL

MECHELEN

WETTEREN

OOSTERLO

WERCHTER

ANTWERPEN

VILVOORDE

ZANDVLIET

DENDERMONDE

GROBBENDONK

The SIGMAPLAN 1977

a) Heithening and strengthening dikesb) aanleg gecontroleerde overstromingsgebiedenc) bouw stormvloedkering te Oosterweel

zone 1 : 11,00 m TAW

zone 2 : 8,35 m TAW

zone 3 : 8,00 m TAW

Page 5: Safety: Example Schelde. The SIGMAPLAN 1977 Upgrade of safety level is necessary.

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LOKEREN

VIERSEL

MECHELEN

WETTEREN

OOSTERLO

WERCHTER

ANTWERPEN

VILVOORDE

ZANDVLIET

DENDERMONDE

GROBBENDONK

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SCHELLE

LOKEREN

VIERSEL

MECHELEN

WETTEREN

OOSTERLO

WERCHTER

ANTWERPEN

VILVOORDE

ZANDVLIET

DENDERMONDE

GROBBENDONK

The SIGMAPLAN 1977

a) verhogen en verzwaren waterkeringenb) Construction of inundation areasc) bouw stormvloedkering te Oosterweel

KBR

Page 6: Safety: Example Schelde. The SIGMAPLAN 1977 Upgrade of safety level is necessary.

The SIGMAPLAN 1977

Zeeschelde

Durme

Tielrodebroek

Page 7: Safety: Example Schelde. The SIGMAPLAN 1977 Upgrade of safety level is necessary.

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DUFFELITEGEM

SCHELLE

LOKEREN

VIERSEL

MECHELEN

WETTEREN

OOSTERLO

WERCHTER

ANTWERPEN

VILVOORDE

ZANDVLIET

DENDERMONDE

GROBBENDONK

The SIGMAPLAN 1977

a) verhogen en verzwaren waterkeringenb) aanleg gecontroleerde overstromingsgebiedenc) Construction of stormsurge barrier at Oosterweel

KBR

Page 8: Safety: Example Schelde. The SIGMAPLAN 1977 Upgrade of safety level is necessary.

90 m 90 m

54 m 54 m 54 m

hefdeuren

segmentkleppen

120 m

The SIGMAPLAN 19772003 : 1.000.000.000 EUR

123 m

Page 9: Safety: Example Schelde. The SIGMAPLAN 1977 Upgrade of safety level is necessary.

Hoe het SIGMAPLAN actualiseren ?

Nete’s

Dijle

Zenne

RupelDurme

Zeeschelde

Page 10: Safety: Example Schelde. The SIGMAPLAN 1977 Upgrade of safety level is necessary.

effect GOG op HW

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afstand in km

as is

to be

GentVlissingen Hansweert Antwerpen Dendermonde

Page 11: Safety: Example Schelde. The SIGMAPLAN 1977 Upgrade of safety level is necessary.

Ecology: CRT

- Introducing estuarine ecosystem

- Tidal regime in area

- Two times a day!

Ring Dike Lowered FCA dike

FCA estuary

Outlet

polder

Concept FCA – CRT safety, ecology and a new ecosystem

Safety: FCA

- Lowered dike stretch

- Critical tides: whole storage capacity

- Only few times/year!

Ring Dike Lowered FCA dike

CRT estuary

Outlet

Inlet

polder

Page 12: Safety: Example Schelde. The SIGMAPLAN 1977 Upgrade of safety level is necessary.

Pilot project Lippenbroek

10 ha of tidal nature developping: May 2008

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Lippenbroek

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Introducing macrotidal regime

Reduction of high water level by 3 meter No reduction of spring – neap variation

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Lippenbroek 16-05-06

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Water quality: oxygen

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“reverse tidal pumping”

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spring neap mean

Page 17: Safety: Example Schelde. The SIGMAPLAN 1977 Upgrade of safety level is necessary.

Alternative disposal strategyAlternative disposal strategy