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Home My WebLink AboutSession11_Climate Change Is Now_Integrating Sea Level Rise and Coastal Threats into Planning for Beach ParksDavid Yamashita, County of Maui Kitty Courtney, TetraTech, Inc. Climate Change is Now Integrating SLR & Coastal Threats into Planning for Beach Parks in Maui County Climate Change is Now Integrating Sea Level Rise and Coastal Threats into Planning for Beach Parks in Maui County Hawaii Congress of Planning Officials September 2024/V1 Project Team Department of Parks and Recreation Karla Peters, Director (former) David Yamashita, Planner VI Planning Department Jennifer Maydan, Planner V (former) Office of Recovery Kaya Givensal, Intern (2019) Tetra Tech, Inc. Kitty Courtney, Project Manager Mike Donoho, Coastal Planner Cindy Rolli, Hazard Mitigation Mgr. Megan Brotherton, Outreach Specialist Gustavo Orozco, GIS Analyst UH Sea Grant Program Tara Owens, Coastal Processes and Hazards Specialist Wes Crile, Coastal Dune Restoration Specialist With assistance from Monitoring & EvaluationPoliciesImplementationVulnerability Assessment 2020 20242023 2025 > Problem Identification 2021-22 The Story Problem Identification Setting Coastal Issues Baldwin Beach Park State of Hawaii County of Maui Baldwin Beach Park Maui WEST Districts EAST HANA CENTRAL SOUTH Kihei Lahaina WailukuKaanapali Kanahā Beach Park ▪~ 160 parks & facilities ▪22 community centers ▪10 gymnasiums ▪22 playgrounds 64 BEACH PARKS 1 GOLF COURSE LAND & FACILITIES Baldwin Beach ParkHonoapiilani Hwy., Olowalu Baldwin Beach Park Honoapiilani Hwy., south of Lahaina Baldwin Beach ParkFront St., Lahaina Baldwin Beach ParkKaanapali Beach Club Baldwin Beach ParkKaanapali Beach Club Baldwin Beach Park August 2020 Baldwin Beach Park August 2024 Photo: Maui News by Heidi Sherman/Sept 2024 September 2024 Puamana Park Questions? What coastal issues are you experiencing? Vulnerability Assessment Methodology Web-based Application Results Assess park viability based on future access HIGH LOW MEDIUM Restore dunes and/or preserve wetlands Retreat/acquire land and relocate structures Fortify/raise shoreline revetment Maintain shoreline access only Maintain facilities/monitor conditions ADAPTATION POTENTIAL VULNERABILITY ASSESSMENT ADAPTATION STRATEGIES OVERVIEW OF THE METHODOLOGY Coastal Erosion Annual High Wave Flooding Passive Flooding SEA LEVEL RISE EXPOSURE AREA (SLXRA) WHAT MAKES UP THE SLXRA? ocean Assessment of near-term and medium-term exposure and impacts of sea level rise on park assets based on five indicators Vulnerability Assessment HIGH LOW Rating of each park’s potential for adaptation to sea level rise based on the assessment of future conditions MEDIUM Adaptation Potential Adaptation Strategies Assess park viability based on future access Adaptation strategies based on future conditions, adaptation potential, and other factors Retreat/acquire land and relocate structures Fortify/raise shoreline revetment Maintain shoreline access only Maintain facilities/monitor conditions Restore dunes and/or preserve wetlands Assess park viability based on future access HIGH LOW MEDIUM Restore dunes and/or preserve wetlands Retreat/acquire land and relocate structures Fortify/raise shoreline revetment Maintain shoreline access only Maintain facilities/monitor conditions ADAPTATION POTENTIAL VULNERABILITY ASSESSMENT ADAPTATION STRATEGIES Kanaha Beach Park Applying the methodology to a park Kanaha Beach ParkRegional Setting Kanahā Beach Park WASTEWATER TREATMENT PLANT County Environmental Management KAHULUI AIRPORT State Airports AMALA PLACE County Public Works WILDLIFE SANCTUARY State Land and Natural Resources KANAHĀ BEACH PARK County Parks and Recreation Assess park viability based on future access HIGH LOW ADAPTATION STRATEGIES Restore dunes and/or preserve wetlands Retreat/acquire land and relocate structures Fortify/raise shoreline revetment Maintain shoreline access only Maintain facilities/monitor conditions ADAPTATION POTENTIAL VULNERABILITY ASSESSMENT MEDIUM Sea Level Exposure Area –3.2’ (~2090)Kanahā Beach Park Park Access Kanahā Beach Park Beach Migration Kanahā Beach Park Timing Kanahā Beach Park Med Park Adaptation Potential Park has medium potential to withstand impacts of sea level rise based on five indicators of vulnerability Web-based Application Tool for Public and Department Staff High –14 parks Medium –39 parks Low –12 parks DRAFT POLICIES ADAPTATION POTENTIAL ADAPTATION POTENTIAL BY DISTRICT South Maui West Maui Central Maui East Maui Molokai High Medium Low Maintain facilities & monitor conditions Restore dunes/preserve wetlands Maintain shoreline access only Fortify/raise shoreline revetment Retreat/acquire land/relocate structures Assess park viability based on future access ADAPTATION STRATEGIES Questions? What methodologies/indicators are you using to assess vulnerability to sea level rise? Policy & Plan Development Draft Policies Regional Adaptation Planning Rapid Response Action Plans Key Takeaways Prioritize nature-based adaptation that restores coastal ecosystems and maintains ocean dependent uses. DRAFT POLICIES Limit construction of new facilities exposed to 3.2 feet of sea level rise. DRAFT POLICIES Pavilion Roller Rink Skatepark Batting CageTennis Courts Roller Rink Restrooms Protect public safety by removing park structures and features damaged or exposed by severe coastal flooding and storm events. DRAFT POLICIES Retain undeveloped park land outside hazard areas for future parks. DRAFT POLICIES DRAFT REGIONAL ADAPTATION APPROACH/STRATEGIES Adaptation Strategy 1: Maintain dunes and restore gaps along the shoreline region •Maintain existing park infrastructure •Reduce shoreline access pathways to reduce damage from foot traffic •Install dune educational signage installed to reinforce good practices •Install dune fencing to encourage passive dune restoration to fill gaps •Plant and maintain native dune vegetation •Augment sand for active dune restoration based on opportunistic availability of appropriate sand (dredging of Kihei Boat harbor) within the shoreline region Adaptation Strategy 2: Enable landward dune migration by relocating park infrastructure •Relocate park infrastructure including parking lots and restrooms outside the SLRXA-3.2 •Maintain and expand dunes where appropriate Adaptation Strategy 3: Enable landward dune migration by realigning South Kīhei Road •Realign South Kīhei Road exposed to SLRXA-3.2 •Expand and maintain dunes •Develop a low impact regional coastal trail Rapid Response plans –draft Developed Rapid Response Plans for Parks with Lowest Adaptation Potential (12 parks) Plan Components (4 pages/plan) 1.Triggers for Implementation 2.Project Context 3.Vulnerability Concerns: Previous Events, Flood Zone, Multi-hazard Threats 4.Adaptation Strategy 5.Proposed Scope and Sequence of Activities 6.Permit Pathway 7.Project Partners, Affected Groups, and Key Contacts 8.Project Cost Estimates and Funding Category Rapid Response plans –draft Rapid Response plans -draft Rapid Response plans -draft Project Partners, Affected Groups, and Key Contacts County Parks and Recreation Public Works Planning Department Emergency Management State DLNR OCCL Questions? What policies and strategies are you considering or developing? Implementation Dune Restoration Kama‘ole CIP Lower Paia Park before and after restoration actions Zone 4 -Baldwin Beach Park Dune Restoration Design HMGP Grant Proposal Collaborative Project among DPR –DEM Questions? What adaptation measures are you implementing? Monitoring & Evaluation Park Survey App 123Survey Tool Questions? What tools or methods are you using to monitor changing conditions? Insights & Priorities Not Just A Parks Problem Time to Plan & Budget Is Now Engage the Community 5 YEAR PRIORITIES Prepare adaptation plans and strategies for high-risk beach parks •Baldwin •Hoaloha 5 YEAR PRIORITIES Integrate adaptation strategies into capital improvement project (CIP) planning •Making decisions on investing in park infrastructure based on SLR vulnerability Identify structures that could be affected byhigh waves & coastal erosion •Developed 12 park preparedness plans 5 YEAR PRIORITIES Prepare and apply cultural protocols for inadvertent discoveries.hig waves & coastal erosion 5 YEAR PRIORITIES 5 YEAR PRIORITIES Coordinate with county and state agencies on adaptation planning •DEM/DPR proposal to FEMA to move park facilities and sewage transfer station County DEM State Highways County Parks County Public Works County Resiliency Office Dune Restoration Prioritize dune restoration/ landward migration where sand deposits are available Collaborative Management Engage County and State entities in developing and implementing adaptation strategies Public Safety Use aging/damaged park infrastructure as an opportunity for removing structures at risk to SLR and other hazards Park Infrastructure Allow only park infrastructure that supports ocean recreation and is located outside areas exposed to SLR and other hazards Regional Approach Where appropriate, develop shoreline management strategies adjacent to park boundaries especially in areas with dunes and beaches Natural & Cultural Resources Prioritize protection and restoration of natural and cultural resources Key Takeaways Link to App https://www.mauicounty.gov/BPVAStudy Mahalo Q + A App Backup Slides 82 EXTRA SLIDES Regional Shoreline Management https://storymaps.arcgis.com/storie s/e76bd1de3cfb45ccbc7f1eaab196 cdeb Planning Horizons and Triggers •Sea level rise time horizon •Frequency of high tide events •Major shoreline change event •Chronic shoreline erosion SLRXA-2.0 ~2050 SLRXA-3.2 ~2065 Baldwin Beach Park August 2006 August 2009 SLRXA-2.0 ~2050 SLRXA-3.2 ~2065 Mahalo From the Project Team Q + A Baldwin Beach Park COASTAL EVENTS ASSESSMENT BROAD STRATEGIES DETAILED STRATEGIES DUNE RESTORATION RAPID RESPONSE PLANS ▪Existing Situation ▪Methodology ▪Application ▪The App ▪Findings ▪Policies ▪Adaption Strategies ▪Rapid Response Plans ▪Dune Restoration Organization Organization Existing Situation Methodology Application The App Findings Policies Adaption Strategies Rapid Response Plans Dune Restoration ▪Existing Situation ▪Methodology ▪Application ▪The App ▪Findings ▪Policies ▪Adaption Strategies ▪Rapid Response Plans ▪Dune Restoration Organization WetlandsWetlands Kanahā Beach Park