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Rising Tides, Urban Coasts and Natural Resources – Solution Room
9th National Summit on Coastal and Estuarine Restoration and ManagementDecember 10, 2018 Long Beach, CA
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Meet the FacilitatorsJuliette Finzi Hart, Ph.D. USGS [email protected]
Nick Sadrpour USC SeaGrant [email protected]
Phyllis Grifman USC SeaGrant [email protected]
Jeremy Smith Stanford University [email protected]
Jake Thickman Moffatt & Nichol [email protected]
Aaron Holloway Moffatt & Nichol [email protected]
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Objectives
• Alternative session format • Peer to peer solution exchange• Draw on multi-disciplinary expertise at conference• Promote creative thinking on complex issues
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Solution Room Format
Overview of typical coastal settings in Southern California
Organize into multi-disciplinary groups• Bluff-backed• Sandy beach & low-lying backshore
Identify challenges and propose solutionsDevelop adaptation pathways
Full room discussion
15 min
45 min
30 min
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Typical Coastal Settings of Southern CaliforniaOpen Coast - Bluff Backed Open Coast – Sandy Beach Estuarine – Developed
San Clemente, CA Venice Beach, CA Long Beach, CA
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Coastal Resources of San Clemente
High value real estate
LOSSAN Railroad
BeachesMarine Safety
Building
PierHard & Soft bottom habitat
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Coastal Hazards in San Clemente
Storm Waves Chronic Erosion
Storms in 1983 El Niño (OC Register) Erosion at North Beach, January 2017 (OC Register)
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Chronic Erosion + SLR = Coastal Squeeze
San Clemente, CA
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+0.8ft (25cm) Beach Loss
+3.3ft (100cm) Railroad
+4.9ft (150cm) Bluff Erosion
Storm erosionShoreline
SLR Thresholds:
CoSMoS Results:
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SLR Adaptation – difficult trade offs to consider
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Coastal Resources of Venice Beach
High value real estate
Beaches
Recreation Center
Hard & Soft bottom habitat
Boardwalk
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Coastal Hazards in Venice Beach
Storm related erosion damage Storm related flooding
Storms in 1983 El Niño
County lifeguard headquarters
1983 Flooding in Venice Beach at Washington Blvd (Fred Barthel)
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Sea Level Rise Hazards in Venice Beach
Beach erosion due to sea level rise
Low
er
High
er
Low lying topography at increased risk of floodingveniceupdate.com
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0
1000
2000
3000
4000
5000
6000
0 1.6 3.3 4.9 6.6 0 1.6 3.3 4.9 6.6
Inland Flooding Coastal 100yr Flooding
# of
Par
cels
Affe
cted
SLR ft
Residential Commerical Industrial Civic/Open Space
Parcel Analysis
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Group Discussion
15
• Organize into multi-discipline groups• Peer to peer exchange of ideas• Resources:
• Printed Maps• Laptop – OCOF / google earth• Facilitator
Final Discussion
16
• Review most interesting points of each discussion group• Any cross cutting themes?• Major challenges and solutions at each location
CoSMoS Flood Projections
Shoreline Change
Cliff retreat