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(background) Matthew Cusick, Fiona’s Wave, 2005 PHILADELPHIA IS A COASTAL CITY PHILADELPHIA IS A COASTAL CITY Michael W. Tantala, P.E. Tantala Associates, LLC, Engineers and Architects (Karen M’Closkey and Keith VanDerSys) Waterfront Development in a Changing Climate “Philadelphia is a Coastal City”, Tantala, 2017.06.20

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Waterfront Development in a Changing Climate“Philadelphia is a Coastal City”, Tantala, 2017.06.20

(background) Matthew Cusick, Fiona’s Wave, 2005

PHILADELPHIAIS A

COASTAL CITYPHILADELPHIAIS A

COASTAL CITYMichael W. Tantala, P.E.Tantala Associates, LLC, Engineers and Architects

(Karen M’Closkey and Keith VanDerSys)

Waterfront Development in a Changing Climate“Philadelphia is a Coastal City”, Tantala, 2017.06.20

Waterfront Development in a Changing Climate“Philadelphia is a Coastal City”, Tantala, 2017.06.20

PHILADELPHIAIS A

COASTAL CITYPHILADELPHIAIS A

COASTAL CITY1. my work with resiliency in other areas

2. the hazard and Philadelphia

3. Penn studio : Testing the Waters : Philly Futures

(disaster, adaptation, or retreat)

Waterfront Development in a Changing Climate“Philadelphia is a Coastal City”, Tantala, 2017.06.20

On the Water | Palisade Bay(with Guy Nordenson, Catherine Seavitt, et al)

imagines a “soft infrastructure” for the New York/New Jersey Upper Bay

develops interconnected infrastructures and landscapes which rethink the thresholds of water, land and city

mitigates potential damage from storms, new ground for recreation, ecologies, agriculture and urban development

exhibition Rising Currents: Projects for New York’s Waterfront, at The Museum of Modern Art, New York

the U.S. Pavilion at the 12th Venice Architecture Biennale

Latrobe Prize

Waterfront Development in a Changing Climate“Philadelphia is a Coastal City”, Tantala, 2017.06.20

imagines a “soft infrastructure” for the New York/New Jersey Upper Bay

develops interconnected infrastructures and landscapes which rethink the thresholds of water, land and city

mitigates potential damage from storms but also provides new ground for recreation, ecologies, agriculture and urban development

“soft infrastructure” >

Waterfront Development in a Changing Climate“Philadelphia is a Coastal City”, Tantala, 2017.06.20

Structures of Coastal Resilience (SCR) Project

(with Guy Nordenson, Catherine Seavitt, et al)

study and proposeresilient designsfor urban coastal regions in the North Atlantic

part of Federal and USACE

Includes structural, nonstructural, and ‘natural and nature based features’ (NNBFs)

mapping of storm surge inundationwith and without interventions

Waterfront Development in a Changing Climate“Philadelphia is a Coastal City”, Tantala, 2017.06.20

d DELAWARE VALLEY

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1980-1999

TIME PERIOD

2050

38 cm

ESTIMATED LOCAL MEAN SEA LEVEL RISE

2080-2099

96cm

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Waterfront Development in a Changing Climate“Philadelphia is a Coastal City”, Tantala, 2017.06.20

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The three principles of attenuation* protection, and planning are central to the design approach and methodology that define the Structures of Coastal Resilience project.

The implications for flood resistant design are

clear and can be surimarized in three

principles :

Attenuation and d issipation of wave

energy offshore to reduce the demands on

barriers and evees or wetlands where they

exist or to building and structures where they

do not;

Protection with both flood structures and

bui ld ing code requirements knowing that

some flooding w ill inevitably occur;

Planning for controlled flooding through

urban and landscape flood plain

management and design.

Waterfront Development in a Changing Climate“Philadelphia is a Coastal City”, Tantala, 2017.06.20

Inundation Delineation: USGS Landsat images of Ohio/Mississippi River confluencebefore and during floods of 2011

work withremote sensingof floods

delineation of inundation, areas and volumes

water recederates

Waterfront Development in a Changing Climate“Philadelphia is a Coastal City”, Tantala, 2017.06.20

PHILADELPHIAIS A

COASTAL CITYPHILADELPHIAIS A

COASTAL CITY• (although it is 60 miles inland from the Atlantic Ocean)

• it sits within the Delaware Estuary

• it faces significant challenges from climate change

• the next 30 years: 10x tidal flooding events increase (19/yr to 200/yr)

Waterfront Development in a Changing Climate“Philadelphia is a Coastal City”, Tantala, 2017.06.20

• New Normals past designs were based on past climate conditions

• Changing Extremes more frequent and severe

snowiest winter, warmest summer, wettest day since 2010

• Rising Seas sea level rise raises levels in the Delaware & Schuylkill Rivers

increases depths and extent of flooding (storm surge)

sea level rise 0.11 in / yr since 1900, one foot in 100 years!

(source: Toward A Climate Ready PhiladelphiaCity of Philadelphia Mayor’s Office of Sustainability and ICF International)

Waterfront Development in a Changing Climate“Philadelphia is a Coastal City”, Tantala, 2017.06.20

• Temperature increases → Precipitation increases

• various models, assumptions and predictions

• RCP = Representative Concentration Pathway (emissions scenarios)

RCP8.5 RCP6.0 RCP4.5

No intervention Moderate More aggressive intervention

(business as usual)

temperaturevs

precipitation

(source: Toward A Climate Ready PhiladelphiaCity of Philadelphia Mayor’s Office of Sustainability and ICF International)

Waterfront Development in a Changing Climate“Philadelphia is a Coastal City”, Tantala, 2017.06.20

SLRfuture

projections

Phila observed over 100 yearsmean sea level rise (SLR)

(source: Toward A Climate Ready PhiladelphiaCity ofPhiladelphia Mayor’s Office of Sustainability and ICF International)

Waterfront Development in a Changing Climate“Philadelphia is a Coastal City”, Tantala, 2017.06.20

SLR(2’, 4’, 6’)

FEMA (100 year and 500 year evenst)

(source: Toward A Climate Ready PhiladelphiaCity of Philadelphia Mayor’s Office of Sustainability and ICF International)

Waterfront Development in a Changing Climate“Philadelphia is a Coastal City”, Tantala, 2017.06.20

SLR and STORM(CAT 1 + 2’, 4’, 6’)

SLR(2’, 4’, 6’)

(source: Toward A Climate Ready PhiladelphiaCity of Philadelphia Mayor’s Office of Sustainability and ICF International)

Waterfront Development in a Changing Climate“Philadelphia is a Coastal City”, Tantala, 2017.06.20

(source: Toward A Climate Ready PhiladelphiaCity of Philadelphia Mayor’s Office of Sustainability and ICF International)

Waterfront Development in a Changing Climate“Philadelphia is a Coastal City”, Tantala, 2017.06.20

(source: Toward A Climate Ready PhiladelphiaCity of Philadelphia Mayor’s Office of Sustainability and ICF International)

Waterfront Development in a Changing Climate“Philadelphia is a Coastal City”, Tantala, 2017.06.20

three scenarios—disaster, adaptation, or retreat

prioritize different ways of looking at the land-water transition zone

approaches for existing or proposed structures, infrastructures and land uses

Spring 2017 Architectural Studio

Waterfront Development in a Changing Climate“Philadelphia is a Coastal City”, Tantala, 2017.06.20

Spring 2017, Jihee Choi

Waterfront Development in a Changing Climate“Philadelphia is a Coastal City”, Tantala, 2017.06.20 Spring 2017, Jihee Choi

d DELAWARE VALLEY

t'J REGly~pc @PennDesign PLANNING COMMISSION

Risk Projection

Waterfront Development in a Changing Climate“Philadelphia is a Coastal City”, Tantala, 2017.06.20 Spring 2017, Jihee Choi

d DELAWARE VALLEY

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Simulation of Water Flow

Simulation of Storm

@PennDesign

Velocity

- Low - Mid

- High

Velocity

Low Mid

High

Waterfront Development in a Changing Climate“Philadelphia is a Coastal City”, Tantala, 2017.06.20 Spring 2017, Jihee Choi

d DELAWARE VALLEY

t'J REGly~pc @PennDesign PLANNI NG COMMISSION

Waterfront Development in a Changing Climate“Philadelphia is a Coastal City”, Tantala, 2017.06.20 Spring 2017, Jihee Choi

d DELAWARE VALLEY

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Sections A. Penn Treaty Park Wetland

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B. Penn Treaty Park WeUand 1 ................................................................... -!

C. Penn Treaty Park Wetland

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8-2. Berm Promenade Detailed Section A·2. Penn Treaty Park Detailed Section

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Waterfront Development in a Changing Climate“Philadelphia is a Coastal City”, Tantala, 2017.06.20 Spring 2017, Jihee Choi

d DELAWARE VALLEY

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Berm Promenade, Dry condition Penn Treaty Park Wetland, Low T'ocle -311

Waterfront Development in a Changing Climate“Philadelphia is a Coastal City”, Tantala, 2017.06.20

(background) Matthew Cusick, Fiona’s Wave, 2005

PHILADELPHIAIS A

COASTAL CITYPHILADELPHIAIS A

COASTAL CITYMichael W. Tantala, P.E.Tantala Associates, LLC, Engineers and Architects

(Karen M’Closkey and Keith VanDerSys)

Waterfront Development in a Changing Climate“Philadelphia is a Coastal City”, Tantala, 2017.06.20