BK 7210 scenario’s for the Rotterdam delta – ir. Anne Loes Nillesen

Bk7210 Urban analysis & design

Minor: Green Blue City 2013

Lecture 5 Scenario’s forthe Rotterdam delta Anne Loes Nillesen

1. Dike typology and flood protection stratagies slide 3-30

2. Case studies and design examples slide 31-59

3. Creative commons slide 60

BK 7210 scenario’s for the Rotterdam delta – ir. Anne Loes Nillesen

Contents of this lecture

- Dike typology

- Flood protection stratagies

- Open system- Closed system- Current system- Improved barrier system

- Balance between city and water

BK 7210 scenario’s for the Rotterdam delta – ir. Anne Loes Nillesen

1. Dike typology and flood protection stratagies

BK 7210 scenario’s for the Rotterdam delta – ir. Anne Loes Nillesen

The Rotterdam delta 1320

BK 7210 scenario’s for the Rotterdam delta – ir. Anne Loes Nillesen

Functions outer-dike area

BK 7210 scenario’s for the Rotterdam delta – ir. Anne Loes Nillesen

build dikehistorical24 mljE/km elevation

The length of the primary water barriers (the dike rings) in the Rijnmond and Drechtsteden is 516 km. A rise in mean high water (MHW) necessitates dike reinforcement. To make the effects clear we make first of all a distinction between unbuild and built dikes. The unbuild dikes have a length of 405 km and can be further broken down into grass dikes , park dikes, paved dikes and infra-dikes. The distinction between grass dikes and park dikes is the presence of plants and paths. Infra-dikes can be defined by serving as important regional roads.

The built dikes have a length of 111 km and can be broken down into one- and two-sided built dikes, office-dikes and dikes with historically valuable buildings. The latter category is determined by the presence of monuments and protected town- and cityscapes.

The qualitative distinction is also relevant for calculating the cost of dike reinforcement and elevation. Unbuild dikes can be more easily raised than built dikes. Raising both sides of built dikes with historic buildings -such as the Voorstraat in Dordrecht- required complex and expensive constructions. The costs shown here are civil charges as indicated in the Annex plus additional costs concerning urban interventions ( as included in the integration report).

Dike typology

build dikedual-sided36 mljE/km elevation

build dikeoffices24 mljE/km elevation

build dikedual-sided36 mljE/km elevation

BK 7210 scenario’s for the Rotterdam delta – ir. Anne Loes Nillesen

open grass dike6 mljE/km elevation

open paved dike12 mljE/km elevation

open infra-dike15 mljE/km elevation

build dike residential21 mljE/km elevation

build dikedual-sided36 mljE/km elevation

Dike typology

Dijken

Kering 1:100

Huidige waterkeringen

BK 7210 scenario’s for the Rotterdam delta – ir. Anne Loes Nillesen

Current water barrier

barrier 1:100

dike

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BK 7210 scenario’s for the Rotterdam delta – ir. Anne Loes Nillesen

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Dikes that do not comply in hight and threatend outer-dike areas with enforcing current situation 2010 and execution of the "Hoogwaterbescherm-ingsprogramma" (high water protection program) and measures from "Ruimte voor de rivier 2015" (Space for the river 2015).

WATER DEPTH [cm] CONSTRUCTION OUTER DIKE AREAresidentialindustryofficesrecreation

DIKESdikes thatdo not comply in hightdike rings

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paved dike

infra-dike

grass dike

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1 - 5050 - 100100 - 150150 - 200

200 - 250250 - 300300 - 350350 - 400

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BK 7210 scenario’s for the Rotterdam delta – ir. Anne Loes Nillesen

EPK 100RotterdamKNMI G+ 2100/Veerman 2050change of reoccurrence 1:1000

Dikes that do not comply in hight and threatend outer-dike areas with Veerman 2050 and execution of the "Hoogwaterbeschermingsprogramma" (high water protection program) and measures from "Ruimte voor de rivier 2015" (Space for the river 2015).

WATER DEPTH [cm] CONSTRUCTION OUTER DIKE AREAresidentialindustryofficesrecreation

DIKESdikes thatdo not comply in hightdike rings

build dike build dike build dike build dikeresidential dual sided historical offices

paved dike

infra-dike

grass dike

400 - 450450 - 500500 - 550550 - 600

1 - 5050 - 100100 - 150150 - 200

200 - 250250 - 300300 - 350350 - 400

september 15th 2011 - Anne Loes Nillesen 4 flood protection strategies

lardge scale

letting water in + additional flood

proofing

elevation

dikes or flood walls

barriers

local scale building scale

BK 7210 scenario’s for the Rotterdam delta – ir. Anne Loes Nillesen

regional scale local scale building scale

Flood protection strategies

letting water in +additional flood

proofing

elevation

dikes or floodwalls

barriers

diagrams by D.EFAC.TO

BK 7210 scenario’s for the Rotterdam delta – ir. Anne Loes Nillesen

Potential sollutions

Open system- no barrier- higher dikes

Closed system- barrier river and sea- additional higher dikes

Current system- sea barrier 1:100 (chance of breaching)- higher dikes

Improved barrier system- sea barrier 1:1000 (chance of breaching)- higher dikes

open (but protected by dikes)

B1 afsluitbaar

closed

B2 afsluitbaar

Open situatie- geen kering- hogere dijken

Gesloten situatie- kering rivier en zee- aanvullend hogere dijken

Huidige situatie- kering zee 1:100- hogere dijken

Verbeterde kering- kering zee 1:1000- hogere dijken

Mogelijke oplossingsrichtingen

diagrams by D.EFAC.TO

regionaal schaalniveau

Locaal niveau buitendijks

aanvullend dijken

aanleggen keringen

eventueel :aanvullende maatregelen

Afsluitbaar open zee + rivierzijdeVerbeterd afsluitbaar

BK 7210 scenario’s for the Rotterdam delta – ir. Anne Loes Nillesen

Improved barrier system regional scale

building barriers

additional dikes

local scale, outer dike areapossible:additional measures

diagrams by D.EFAC.TO

open (but protected by dikes)

B1 afsluitbaar

closed

B2 afsluitbaar

Huidige situatie- kering zee 1:100- hogere dijken

Haven- scheepvaart vaker barrière gesloten kering en bij hoog water mogelijk vaarverbod(betrouwbaarheid haven in geding)

- overstromingsrisico buitendijks gebied (inclusief milieuschade)

BK 7210 scenario’s for the Rotterdam delta – ir. Anne Loes Nillesen

open (but protected by dikes)

B1 afsluitbaar

closed

B2 afsluitbaar

Huidige situatie- kering zee 1:100- hogere dijken

Haven- scheepvaart vaker barrière gesloten kering en bij hoog water mogelijk vaarverbod(betrouwbaarheid haven in geding)

- overstromingsrisico buitendijks gebied (inclusief milieuschade)

Current system

- sea barrier 1:100 (chance of breaching)

- higher dikes

Harbor

- shipping traffic is hindered with closed barrier

- possible prohibition to sail during high tides

- reliability harbor in question

- flood risk outer dike areaincluding environmental damage

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BK 7210 scenario’s for the Rotterdam delta – ir. Anne Loes Nillesen

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open barrier Rijnmond

Flooding risk increases Elevating quay: prevention

regionaal schaalniveau

Locaal niveau buitendijks

aanvullend dijken

aanleggen keringen

eventueel :aanvullende maatregelen

Afsluitbaar open zee + rivierzijdeOpen

BK 7210 scenario’s for the Rotterdam delta – ir. Anne Loes Nillesen

Open system regional scale

local scale, outer dike areapossible:additional measures

open (but protected by dikes)

B1 afsluitbaar

closed

B2 afsluitbaar

Open situatie- geen kering- hogere dijken

Haven- scheepvaart vrije doorgang (maar bij extreem hoog water vaarverbod)

- meer overstromingsrisico buitendijks gebied (inclusief milieuschade)

- meer lokale dijken rondom haventerreinen

open (but protected by dikes)

B1 afsluitbaar

closed

B2 afsluitbaar

Open situatie- geen kering- hogere dijken

Haven- scheepvaart vrije doorgang (maar bij extreem hoog water vaarverbod)

- meer overstromingsrisico buitendijks gebied (inclusief milieuschade)

- meer lokale dijken rondom haventerreinen

BK 7210 scenario’s for the Rotterdam delta – ir. Anne Loes Nillesen

- no barrier

- higher dikes

Harbour

- shipping traffic has free passage

- possible prohibition to sail during extreme high tides

- local dikes in and around harbor area

- high flood risk outer dike areaincluding environmental damage

Open system

regionaal schaalniveau

Locaal niveau buitendijks

aanvullend dijken

aanleggen keringen

eventueel :aanvullende maatregelen

Afsluitbaar open zee + rivierzijdeGesloten

Buiten de keringen

BK 7210 scenario’s for the Rotterdam delta – ir. Anne Loes Nillesen

Closed system regional scale

building barriers

additional dikes

local scale, outer dike areapossible:additional measures

open (but protected by dikes)

B1 afsluitbaar

closed

B2 afsluitbaar

Gesloten situatie- kering rivier en zee- aanvullend hogere dijken

Haven- scheepvaart krijgt barrière gesloten kering maar alleen binnen de keringen

- overstromingsrisico buitendijks gebied (inclusief milieuschade)

- lokale dijken rondom haventerreinen

BK 7210 scenario’s for the Rotterdam delta – ir. Anne Loes Nillesen

open (but protected by dikes)

B1 afsluitbaar

closed

B2 afsluitbaar

Gesloten situatie- kering rivier en zee- aanvullend hogere dijken

Haven- scheepvaart krijgt barrière gesloten kering maar alleen binnen de keringen

- overstromingsrisico buitendijks gebied (inclusief milieuschade)

- lokale dijken rondom haventerreinen

- barrier river and sea

- additional higher dikes

Harbour

- shipping traffic is hindered with closed barrier,but only between the barriers

- no prohibition to sail during high tides

- more local dikes in and around harbor area

- flood risk outer dike areaincluding environmental damage

Closed system