Perchetti

Game of Floods

Redwood High School

Spring 2016

Community Development Agency

3501 Civic Center Drive, Suite 308

San Rafael, CA 94903

415 473 6269 T / 415 473 7880 F

marinslr.org

Collaboration: Sea-level Marin Adaptation Response Team (C-SMART)

GAME OF FLOODS

Marin County

Community Development Agency

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San Marin High School

Spring 2016

Youth Exploring Sea Level Rise Science (YESS)

King Tides and Community Planning

Slide 2

Youth Exploring Sea Level Rise Science (YESS)

King Tides and Community Planning

Slide 3

Adaptation Planning

Youth Exploring Sea Level Rise Science (YESS)

King Tides and Community Planning

Slide 4

Sea level rise models

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Youth Exploring Sea Level Rise Science (YESS)

King Tides and Community Planning

Slide 5

China Camp State Park, November 2015

Photo credit: Marin County CDA

Youth Exploring Sea Level Rise Science (YESS)

King Tides and Community Planning

Slide 6

Youth Exploring Sea Level Rise Science (YESS)

King Tides and Community Planning

Slide 7

Adaptation Measures

PROTECT

RETREAT

ACCOMMODATE

Famous adaptors throughout history…

Dutch levees

Noah’s ark

PROTECT

Flood wall & Pump station

Hard (Traditional) Engineering

Seawall/Revetment

Tidal gate

Traditional levee

Seawall

Westhoff  

Bulkhead seawall in Seadrift neighborhood  

Failed “razor dike,”

New Orleans (2005)

Levee

Flood wall &

Pump station

Tidal gate

PROTECT

Soft (Nature-based) Engineering

Horizontal levee

Wetland/ shoreline vegetation

Dune restoration & Beach maintenance

Offshore structure

Horizontal levee

Wetland/ shoreline vegetation

Campbell

Giacomini Wetland Restoration, 2008

Dune Restoration & Beach Maintenance

Building the “Zandmotor” using a side-caster, in addition to slurry pipes : 2011

Rotterdam, The Netherlands

The “sand engine,” hard at work widening beaches/dunes to the north and south.

Offshore structures

San Clemente artificial reef experiment  

Concrete 

Quarry rock 

ACCOMMODATE

Elevate buildings

New/elevate road

Floodproof development

Elevate buildings

Floodable �development

New/elevate road

Bolinas Lagoon

RETREAT

Retreat

Rebuild here

Post-storm prohibitions

Stricter land use zoning

Managed

Retreat

Post Storm Restrictions and Stricter Land Use Zoning

• No or restricted rebuilding after storms?
• Rolling easements
• Extra technical studies
• Use of stricter codes (FEMA V)

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Z

Costs $$$

Real World – costs are messy and depend on many factors

+ planning & engineering

+ permitting

+ maintenance & repair

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Game World – costs are simpler one-time costs and given to you per unit (i.e. mile or # of buildings)

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Judging criteria

• Assets (6 total): Diversity, feasibility, value
• Protection: Tally “long, medium, short”
• Impact: Tally “E” environmental impact
• Cost: Tally “$” economic cost

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Planning Commission (YOU) present adaptation plan to Board of Supervisors (US)

Schedule

• 11:20 – Break into groups, choose a Recorder

– Read scenario card

– Each person choose an asset (6 total)

– Fill out Planning Commissioner worksheet

• 11:35 – Share your strategies with group

– Finalize group adaptation plan, place stickers

– Recorder - tally impacts

• 11:50 – Report out to class, Board selects winner

– Evaluations

• 12:15 – Community Interview assignment

Community Interviews

• Collect important social science data about
• Experience with flooding
• Perceptions of SLR
• Preferred adaptation strategies
• Follow a data collection protocol
• Includes not-scary questions like:
• Are there places near you which already flood during storms or high tides?
• What do you know about sea level rise?
• Do you think climate change will get “solved”?  If so, how?
• Analyze results

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Photo Credit: Alejandro Palacios

Youth Exploring Sea Level Rise Science (YESS)

King Tides and Community Planning

Slide 35

Community Development Agency

3501 Civic Center Drive, Suite 308

San Rafael, CA 94903

415 473 6269 T / 415 473 7880 F

marinslr.org

WWW.MARINSLR.ORG