CALIFORNIA COASTAL COMMISSION DRAFT SEA-LEVEL RISE POLICY .

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South Imperial Beach, TRNERR1CALIFORNIA COASTAL COMMISSIONDRAFT SEA-LEVEL RISE POLICY GUIDANCEAND INTRODUCTION TO ADAPTATION14 April 2015Santa Barbara-Ventura SLR Workshop

Overview of Presentation2 California Coastal Commission and Coastal Act Coastal Commission’s Draft Sea Level Rise Policy GuidancePlanning Guidance for Local Coastal ProgramsPermit Guidance for Coastal Development Permits Overview of some Options for Adaptation Next StepsCoastal Commission 4/14/2015

Contents of the Draft Document3Executive SummaryMain ReportChapter 1: IntroductionChapter 2: Guiding PrinciplesChapter 3: ScienceChapter 4: Guidance for LCPsChapter 5: Guidance for CDPsChapter 6: Additional ResearchChapter 7: Next StepsChapter 8: GlossaryAppendicesAppendix A: ScienceAppendix B: Coastal EngineeringAppendix C: Adaptation OptionsAppendix D: LCP ResourcesAppendix E: Other Agencies’ ProgramsAppendix F: Coastal Act PoliciesCoastal Commission4/14/2015

About the Draft Document4IT ISIT IS NOTDraftFinalDraft Guidance for addressing SeaLevel Rise in conformance with theCoastal ActNew regulationsComplement to other CommissionmaterialsReplacement for other CommissionmaterialsMulti-purpose guidance in which usersmay focus on particular chaptersMeant to be read cover to coverA list of sea-level rise adaptationoptions to choose fromA checklist of adaptation measureswhere all items have to beaccomplishedA living documentStaticCoastal Commission4/14/2015

Goals of the Document5 Address sea-level rise in CaliforniaCoastal Act: Minimize hazards and impacts tocoastal resources due to sea-level riseFulfill Strategic Plan item 3.1.1Surf scene, San Diego Nathan RupertCoastal Commission4/14/2015

Applications of Best Science6Local Coastal ProgramsLong-Range Development PlansPort Master PlansFederal ConsistencyCoastal Development PermitsCoastal Commission4/14/2015

7McGrath State Beach www.caopensapce.orgOxnard Beach Flickr user SurfingsandersOxnard Shores Mobile Home Park California Coastal Records ProjectOxnard Farm FieldsVisitor serving facilities, Oxnard mymotels.comPort of Hueneme portofhueneme.orgReliant Ormand Beach Generating Station California Coastal Records Project4/13/2015Ormand Beach Wetlands Sierra Club

Best Available Science on SLR8 National Research Council Report SLR Projections for California Most locations can use these projections without modificationHumboldt Bay & Eel River Sea Level Rise SLR is at faster rate than region North of Cape MendocinoModify projections to account for local vertical land motionCoastal Commission4/14/2015

Steps for Addressing SLR in LCPs1. Determine rangeof sea-level riseprojections relevantto LCP planningarea/segment96. Monitor andrevise as needed2. Identify potentialsea-level riseimpacts in LCPplanningarea/segment5. Develop orupdate LCP andcertify withCalifornia CoastalCommission3. Assess risks tocoastal resourcesand development inplanning area (i.e.identify problemareas)4. Identifyadaptationmeasures and LCPpolicy optionsCoastal Commission4/14/2015

Steps for Addressing SLR in CDPs1. Establish the projected sea-level rise rangefor the proposed project2. Determine how sea-level rise impacts mayconstrain the project site3. Determine how the project may impactcoastal resources over time, considering SLR4. Identify project design alternatives to bothavoid resource impacts and minimize risks tothe project5. Finalize project design and submit permitapplicationCoastal Commission4/14/2015

CDP Analysis of Sea-Level Rise11General Situations for considering sea-level rise: On or near a floodplain, beach, wetland, lagoon or estuaryExposed to wave impacts or wave runupProtected by levees, dikes, bulkheads, seawalls, etc.On an eroding coastal bluffReliant on shallow water well for water supplyCoastal dunes, Humboldt Bay Lesley EwingCoastal Commission4/14/2015

Step 1: Determine SLR Projections12Expected Outcomes: Appropriate Planning Timeframes Proposed project life Scenarios of SLR for use in analysisLevees along Wintersberg Channel, Huntington Beach Lesley EwingCoastal Commission4/14/2015

Step 1: Determine SLR Projections13Tomales Bay Wetland Restoration CA KingTides Initiative Jan 2012 Sarah AllenScenario Based Planning: A tool for developing science-baseddecisionmaking framework to address SLR uncertainty. Used to informdecision making refarging the range of impacts and vulnerabilities.(Adapted from NOAA 2010)Coastal Commission4/14/2015

Step 2: Identify SLR Impacts & Constraints14Hazard Analysis Types: Geologic StabilityErosionWaves and wave runupFlooding and inundationExpected Outcomes: Maps of site-specific hazards Areas that can safely supportdevelopment Regional-scale for planning,site-specific scale for projectsHighway 1 near Pescadero, San Mateo County Lesley EwingCoastal Commission4/14/2015

Step 3: Assess Impacts to Coastal Resources15Ocean Beach, SanFrancisco LesleyEwingCoastal Resources toConsider: Public access, beaches,recreation areas California Coastal Trail Wetlands, ESHA, otherhabitats Agricultural areas Cultural sites Coastal-dependent uses Critical infrastructure Coastal Highway 1 Existing and new developmentExpected Outcomes:SLR risks to coastal resources;map overlaying development andresource constraintsCoastal Commission4/14/2015

Vulnerability - Tools and Resources16LCP Sea Level Rise Grant Programadministered by OPC (awarded) City of Eureka City of Morro Bay LA Region Marin Sonoma County Monterey County City of Half Moon BayHumboldt Bay Shoreline Inventory,Mapping, and SLR VulnerabilityAssessmentOcean BeachMaster PlanCity of Santa Cruz ClimateChange Vulnerability AssessmentMonterey Bay SLRVulnerability StudyDeveloping Climate AdaptationStrategies for SLO CountySanta Barbara SLR VulnerabilityStudyAdapt LASan Diego SLRAdaptation StrategyCoastal Commission4/14/2015

Vulnerability - Tools and Resources17Humboldt Bay Shoreline Inventory,Mapping, and SLR VulnerabilityAssessmentOcean BeachMaster PlanCity of Santa Cruz ClimateChange Vulnerability AssessmentMonterey Bay SLRVulnerability StudyDeveloping Climate AdaptationStrategies for SLO CountyLCP Sea Level Rise Grant ProgramCCC LCP Grants(awarded)administeredby OPC(awarded) CountyofHumboldt City of EurekaCity ofof MorroArcataBay CityCountyof Marin LARegionCity of HMB MarinCity of Pacific SonomaCountyGroveCity of Goleta MontereyCounty CityofSantaBarbara City of Half MoonBay City of LA City of Hermosa Beach City of San Clemente City of Solana BeachSanta Barbara SLR VulnerabilityStudyAdapt LASan Diego SLRAdaptation StrategyCoastal Commission4/14/2015

Vulnerability - Tools and Resources18Humboldt Bay Shoreline Inventory,Mapping, and SLR VulnerabilityAssessmentOcean BeachMaster PlanCity of Santa Cruz ClimateChange Vulnerability AssessmentMonterey Bay SLRVulnerability StudyDeveloping Climate AdaptationStrategies for SLO CountyLCP Sea Level Rise Grant ProgramOPC Grants yGrants(awarded) CountyofHumboldt CityofEureka CityCityofofArcataArcata Cityof ofMorroBay Beach CountyCityHermosa ofMarin LARegionof Santa Barbara CityCounty of HMB Marin CityImperialBeachCity ofofPacificGrove SonomaCounty City17 ofothergrants were awardedGoleta MontereyCountythatoffundotherclimate-related CitySantaBarbara Cityof HalfMoon Bay related toeffortsnot specifically Cityof LAseaoflevelrise Beach CityHermosa City of San Clemente City of Solana BeachSanta Barbara SLR VulnerabilityStudyAdapt LASan Diego SLRAdaptation StrategyCoastal Commission4/14/2015

LCP Step 4: Identify LCP Adaptation Measures19Expected outcomes:Identification of necessary updates,list of applicable adaptationmeasures applicable, newimplementation policies/ordinancesTomales Bay Wetland Restoration CA King TidesInitiative Jan 2012 Sarah AllenCoastal Commission4/14/2015

CDP Step 4: Identify Project Alternatives20Surfers Point Managed Retreat Project, Ventura, CAExpected Outcomes: Project modifications andreexamination of impacts 1 project alternatives Possible adaptation optionsCoastal Commission4/14/2015

Sea-Level Rise Hazard Options Avoid Siting Development in Hazard AreasDesign for the Hazard (accommodation)Move Development Away from Hazards (retreat)Move Hazards Away from Development (soft protection)Build Barriers to Protect from Hazards (hard protection)ADAPTATIONHuman activities taken to limit the negative or takeadvantage of the positive effects of climatechangeCoastal Commission 4/14/2015

Avoid Siting Development in HazardAreas (Avoidance)Sometimes the Biggest Decision is the Decision to DO NOTHING

Avoidance Options Public Access and Recreation Coastal Habitats Agricultural Resources Water Quality Paleo/Archeological Resources Scenic Resources0 neutral; better; -- worse Fee Simple Acquisition Conservation Easements Present Use Tax Transfer of Development RightsCoastal Commission4/14/2015

Move Away from Hazards Public Access and Recreation Coastal Habitats0Agricultural Resources Water Quality0Paleo/Archeological Resources Scenic Resources0 neutral; better; -- worse Fee Simple Acquisition Conservation Easements Present Use Tax Transfer of Development Credit Removal/Relocation Managed Retreat Setbacks Rolling EasementsCoastal Commission4/14/2015

Removal/RelocationCoastal Commission4/14/2015

Removal/RelocationBEACH RECOVERYSTILLWELL HALLMonterey County, CAPhotos: Copyright (C) 2002-2005Kenneth & Gabrielle Adelman,California Coastal Records Project

Managed Retreat - ExampleSurfers Point, Ventura Shoreline ErosionProperty DamageDevelopment too close toShorelineLoss of Public AccessPolluted Run OffStructures Impede WatershedSedimentEstablished Surf Resource atRiver Delta

Managed Retreat Example Public Access and Recreation Coastal Habitats0Agricultural Resources Water Quality0Paleo/Archeological Resources Scenic Resources0 neutral; better; -- worse Managed Retreat of BikePath & ParkingReconfigure Parking toMaintain AccessVegetated buffers andPermeable Pavement forWater QualityCobble Berm for ShoreProtectionRestore Sediment Supplies

Move Hazards Away(Soft Protection) Public Access and Recreation /-Coastal Habitats Agricultural Resources /-Water Quality Paleo/Archeological Resources Scenic Resources0 neutral; better; -- worse Maintain or Restore Natural Sand SourcesBeneficial Reuse of SandImprove or Augment Sand SuppliesInnovative Sand SourcesRetain Sand at Specific LocationsInnovative Sand Retention EffortsCoastal Commission4/14/2015

Maintain or Restore NaturalSupplies of Sand to the CoastMatilija Dam, Ventura County, CASand Mining in San Juan Creek, CACoastal Commission4/14/2015

Beneficial Reuse of SandHarbor By-passing at Santa Cruz HarborPhoto Credit: California Coastal Records ProjectCoastal Commission4/14/2015

Beneficial Reuse of Beach SandSand Back-passing at East Beach, Long Beach, CAPhoto Credit: California Coastal Records ProjectCoastal Commission4/14/2015

Augment Sand Supplies Public Access and Recreation /-Coastal Habitats Agricultural Resources /-Water Quality0Paleo/Archeological Resources /-Scenic Resources0 neutral; better; -- worseOver 35 Million Cubicyards of Sand added toSanta Monica Bay Beachessince late 1930s

Augment Sand Supplies –Offshore Sand Supplies

Retaining Sand –Beach Berms-Public Access and Recreation-Coastal Habitats0Agricultural Resources-Water Quality0Paleo/Archeological Resources-Scenic Resources0 neutral; better; -- worseBerm Building/Beach Scraping

Retaining Sand - Groins Public Access and Recreation /-Coastal Habitats0Agricultural Resources /-Water Quality0Paleo/Archeological Resources /-Scenic Resources0 neutral; better; -- worseWill Rogers Beach with GroinsPhoto Credit: California Coastal Records Project

Retaining Sand - Breakwaters197919721989Venice BreakwaterPhoto Credit: California Coastal Records Project2004

Retaining Sand – Dune NourishmentBeach DunesStinson Beach and Ocean BeachPhoto Credit: California Coastal Records Project

Retaining Sand – Artificial HeadlandsLaguna BeachPhoto Credit: California Coastal Records Project

Retaining Sand – Augment DeltasTopanga Creek (top) andSan Mateo Creek (right)Photo Credit: California Coastal Records Project

Innovative Retaining StructuresArtificial Seaweed,Multi-purposeReefs, ConcreteUnit Reefs, FloatingBreakwaters

Protective Barriers –Hard Protection-Public Access and Recreation-Coastal Habitats0Agricultural Resources /-Water Quality Paleo/Archeological Resources-Scenic Resources0 neutral; better; -- worseVertical Seawalls

Barriers to Protect DevelopmentRevetments,Gabions,Multiple designsCoastal Commission4/14/2015

LCP Steps 5 & 6: Finalize LCP44Step 5 expected outcomes:Certified/updated LCP with policiesand land use designations thataddress sea-level rise and therelated hazardsStep 6 expected outcomes:Image by California Coastal CommissionPlan to monitor the LCP planningarea for SLR and other impacts;revisions when conditions change orscience is updatedCoastal Commission4/14/2015

CDP Step 5: Finalize Application45Expected Outcomes: Analysis of sea-level rise concernsfor inclusion in a CDP application Combine with other applicationitems for a complete submittalPacifica State Beach, Linda Mar Area, Pacifica, CACoastal Commission4/14/2015

How is California addressing sea-level rise?46 Statewide efforts 2014Safeguarding California Plan (update to 2009 Plan) General Plan Guidelines (2015 Update in progress) OES State Hazard Mitigation Plan (update in progress) OPC: 2013 State SLR Guidance 2012 Adaptation Planning Guide CCC, OPC and Climate Ready Grants California Coastal Commission efforts LocalCoastal Programs & Coastal Development Permits Strategic Plan Draft SLR Policy GuidanceCoastal Commission4/14/2015

Next Steps47Outreach To date: 120-day comment period3 webinars14 in-person meetingsDistrict office meetings350 peopleNext Steps: Revised Draft to Commission Trainings and symposia Grant support for localgovernments Targeted interest groupsCoastal Commission4/14/2015

Thank you for your attention48California Coastal Commission,Draft Sea Level Rise Policy ance.htmlLesley Ewing, Ph.D., P.E.lewing@coastal.ca.gov415-904-5291There will be time to deal with climatechange . But there will not be abetter time. There will only be worsetimes.”David Remnick, No More Magical Thinking,New Yorker, 19Nov2012.Coastal Commission4/14/2015

QuestionsCalifornia Coastal Commission,Draft Sea Level Rise Policy ance.htmlLesley Ewing, Ph.D., sionCommissionCoastal4/14/2015

AND INTRODUCTION TO ADAPTATION South Imperial Beach, TRNERR . Overview of Presentation Coastal Commission 4/14/2015 2 California Coastal Commission and Coastal Act Coastal Commission’s Draft Sea Level Rise Policy Guidance . SLR is at faster rate than region North of Cape Mendocino .

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