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Alpine County Wildfire Risk Mitigation Plan Public Workshop #2 April 2020 ---PAGE BREAK--- Questions / Comments • For any immediate questions or concerns related to this Zoom workshop or online access, please contact: Zach Wood (530) 721-5003 [EMAIL REDACTED] • Questions or comments on the Wildfire Risk Mitigation Plan may also be emailed to Zach Wood throughout the presentation. A question answer session will occur at the end of the meeting. Verbal and typed questions can be submitted at that time through this meeting platform. ---PAGE BREAK--- Presentation Overview Project Background 01 02 Identifying Candidate Projects 03 Priority Projects 04 Next Steps 05 Question/Answer Session ---PAGE BREAK--- 01 Project Background ---PAGE BREAK--- Project Background • Approximately 67% of residential units in Alpine County are located in high or very high wildfire hazard severity zones • Fire trends across the West show longer fire season with larger fires • Wildfire Risk Mitigation Plan (WRMP) will build off existing fire hardening efforts in the county and expedite the process of implementing projects to protect communities Purpose and Need ---PAGE BREAK--- Project Background • Goal: Reduce wildfire risks and protect important resources throughout Alpine County. • Objectives: – Identify important resources and assets – Identify the high fire hazard areas – Define and prioritize projects Plan Goals & Objectives ---PAGE BREAK--- Project Background • February 2020 • Described purpose of WRMP • Presented areas of risk • Defined project treatment methods • Introduced project team and steering committee • Materials available on website Workshop 1 ---PAGE BREAK--- 02 Identifying Candidate Projects ---PAGE BREAK--- Candidate Projects • Data. Models show where high fire hazard areas occur and which resources and assets are at risk. • Local Knowledge. County members and steering committee identified recently completed projects in the County, as well as areas of particular concern based on their knowledge of fire response and evacuation procedures. Identify Candidate Projects ---PAGE BREAK--- Candidate Projects • Identified a roster of projects across Alpine County • Projects identified in: – Bear Valley – Grover Hot Springs/Shay Creek – Hung-A-Lel-Ti – Lake Alpine – Manzanita – Markleevillage – Mesa Vista – Turtle Rock Park Identify Candidate Projects ---PAGE BREAK--- Candidate Projects Data Analysis ---PAGE BREAK--- Alpine County Fire Hazards Mitigation Plan ---PAGE BREAK--- SYLLABUS • Modeling & Risk Assessment Recap • Project Development ---PAGE BREAK--- Integrated Hazard Landscape Weather Wildfire Simulatio n Burn Probability Fire Intensity (flamelengt h) • Integrated Hazard Integrated Hazard Modeling ---PAGE BREAK--- • Integrated Hazard ▪ Creates a single characteristic ▪ Easily mapped ▪ Scalable ▪ Straight forward Information Integrated Hazard Modeling Integrated Hazard 1:175,000 Lowest Middle High Highest Low Recent Fire Planning Areas ▪ Middle, Higher, and Highest ~ 50,000 acres ▪ 40 – 60 million $ Woodfords Markleeville Bear Valley Kirkwood Hung a Lel Ti ---PAGE BREAK--- • Likelihood = burn probability (Integrated Hazard) • Intensity = flame length (Integrated Hazard) • Susceptibility = High Valued Resource and Asset Analysis Wildfire Risk Assessment ---PAGE BREAK--- In coordination with the steering committee • Account and map High Valued Resources and Assets (HVRA) Residential Structures Education Facilities (Daycare/Schools/Colleges) Recreational Facilities - campgrounds, rv parks (non ski area) Business and Public Structures Places of Worship Non Habitable/Unknown Structures (barns/sheds) Health and Elder Care Facilities High Hazard Buildings Airport/Helibase Communication infrastructure (cell towers, microwave towers, etc) Potable water storage tanks); snow making infrastructure Major Evacuation corridors (ingress and egress routes) Minor Evacuation corridors (ingress and egress routes) Community Evacuation/Refuge/Safe Zones/Areas Cemeteries or significant resource buildings, areas Watersheds of special significance Wildland Urban Interface Defense Ski Area Terrain MARKLEEVILLE BEAR VALLEY ---PAGE BREAK--- In coordination with the steering committee • Account and map • Relative Importance survey • 8 Responses • Water district • USFS • Alpine County staff • CALFIRE • Fire Safe Council • Resident High Valued Resources and Assets (HVRA) HVRA Uniqueness/Rarity/Endemism Replaceability Safety/Critical Infrastructure Total Score Residential Structures 2.13 3.63 3.25 9.01 Education Facilities (Daycare/Schools/Colleges) 2.63 4.38 3.5 10.51 Recreational Facilities - campgrounds, rv parks (non ski area) 3.25 3.63 2.38 9.26 Business and Public Structures 2.63 4 4 10.63 Places of Worship 2.13 3.67 2.71 8.51 Non Habitable/Unknown Structures (barns/sheds) 1.71 2.57 1.71 5.99 Health and Elder Care Facilities 2.17 4 4.14 10.31 High Hazard Buildings 3 3.83 3.33 10.16 Airport/Helibase 2.57 3 4 9.57 communication infrastructure (cell towers, microwave towers, etc) 3.13 3.88 4.5 11.51 Potable water storage tanks); snow making infrastructure 3.13 4.13 4.5 11.76 Major Evacuation corridors (ingress and egress routes) 3.13 4 4.25 11.38 Minor Evacuation corridors (ingress and egress routes) 2.88 3.13 3.88 9.89 Community Evacuation/Refuge/Safe Zones/Areas 3.25 2.86 4.13 10.24 Cemeteries or significant resource buildings, areas 3.25 4.5 n/a 7.75 Watersheds of special significance 3.25 4 n/a 7.25 Wildland Urban Interface Defense 5.0 5.0 n/a 10.00 Ski Area Terrain 3.14 4 n/a 7.14 ---PAGE BREAK--- In coordination with the steering committee • Account and map • Relative Importance survey • Response Function survey • 6 Responses • USFS • Alpine County staff • CALFIRE • Resident High Valued Resources and Assets (HVRA) HVRA Flame Length 0-2ft Flame Length 2- 4ft Flame Length 4- 6ft Flame Length 6- 8ft Flame Length 8- 12ft Flame Length 12+ft Residential Structures neg 1.17 neg 2.17 neg 2.67 neg 3.00 neg 3.00 neg 3.00 Education Facilities (Daycare/Schools/Colleges) neg 1.17 neg 2.33 neg 2.67 neg 3.00 neg 3.00 neg 3.00 Recreational Facilities - campgrounds, rv parks (non ski area) neg 0.50 neg 1.50 neg 2.33 neg 2.83 neg 2.83 neg 2.83 Business and Public Structuresneg 1.17 neg 2.17 neg 2.50 neg 3.00 neg 3.00 neg 3.00 Places of Worship neg 1.17 neg 2.17 neg 2.67 neg 3.00 neg 3.00 neg 3.00 Non Habitable/Unknown Structures (barns/sheds) neg 0.67 neg 1.83 neg 2.50 neg 2.83 neg 2.83 neg 3.00 Health and Elder Care Facilities neg 1.33 neg 2.67 neg 2.67 neg 3.00 neg 3.00 neg 3.00 High Hazard Buildings neg 1.80 neg 2.40 neg 2.80 neg 3.00 neg 3.00 neg 3.00 Airport/Helibase 0.00 neg 0.67 neg 2.00 neg 2.83 neg 3.00 neg 3.00 communication infrastructure (cell towers, microwave towers, etc) neg 0.83 neg 1.83 neg 2.50 neg 2.83 neg 3.00 neg 3.00 Potable water storage tanks); snow making infrastructure neg 0.17 neg 1.33 neg 2.33 neg 2.83 neg 3.00 neg 3.00 Major Evacuation corridors (ingress and egress routes) pos 0.40 0.00 neg 1.40 neg 1.80 neg 2.40 neg 2.80 Minor Evacuation corridors (ingress and egress routes) pos 0.50 neg 0.17 neg 1.33 neg 1.83 neg 2.50 neg 2.83 Community Evacuation/Refuge/Safe Zones/Areas neg 0.17 neg 0.83 neg 1.83 neg 2.17 neg 2.50 neg 2.50 Cemeteries or significant resource buildings, areas neg 0.50 neg 1.33 neg 2.17 neg 2.67 neg 3.00 neg 3.00 Watersheds of special significance pos 2.50 pos 1.67 pos 0.67 neg 1.17 neg 2.17 neg 2.83 Wildland Urban Interface Defense pos 2.00 pos 1.33 neg 0.17 neg 1.00 neg 2.17 neg 2.67 Ski Area Terrain pos 1.50 pos 0.83 neg 0.50 neg 1.50 neg 2.33 neg 2.83 ---PAGE BREAK--- Wildfire Risk Calculate expected net value change (eNVC) at each pixel = Fire Risk Wildfire Risk 1:175,000 High Moderate Rx Opportunity High Very High Highest Moderate ---PAGE BREAK--- Wildfire Risk 1:24,000 High Very High Highest Moderate Rx Opportunity High Very High Highest Moderate Project Development • Validate • Field Knowledge • Remote Sensing SHAY CREEK MARKLEEVILLAGE MARKLEEVILLE ---PAGE BREAK--- Project Development Wildfire Risk 1:24,000 High Very High Highest Moderate Rx Opportunity High Very High Highest Moderate • Validate • Field Knowledge • Remote Sensing • Update • Recently completed work • Planned work USFS Treatments MARKLEEVILLAGE SHAY CREEK MARKLEEVILLE ---PAGE BREAK--- Project Development Projects 1:24,000 Grover Hot Springs Turtle Rock Park USFS Treatment Markleevillage • Validate • Field Knowledge • Remote Sensing • Update • Recently completed work • Planned work • Strategize • objectives • Achievable goals MARKLEEVILLAGE SHAY CREEK MARKLEEVILLE ---PAGE BREAK--- Project Development Owner 1:24,000 Multiple Owners County USFS Treatment Single Owner • Validate • Field Knowledge • Remote Sensing • Update • Recently completed work • Planned work • Strategize • objectives • Achievable goals • Delineate • By owner • By goal State Emergency Access Protection Defensible Space Community Protection ---PAGE BREAK--- Project Development • Validate • Field Knowledge • Remote Sensing • Update • Recently completed work • Planned work • Strategize • objectives • Achievable goals • Delineate • By owner • By goal • Prioritize • By risk Risk by Project Unit 1:24,000 High Very High Highest Moderate MARKLEEVILLAGE SHAY CREEK MARKLEEVILLE ---PAGE BREAK--- Project Development • Validate • Field Knowledge • Remote Sensing • Update • Recently completed work • Planned work • Strategize • objectives • Achievable goals • Delineate • By owner • By goal • Prioritize • By risk • County specific criteria Wildfire Risk 1:175,000 High Moderate MARKLEEVILLE BEAR VALLEY ---PAGE BREAK--- Alpine County Fire Hazards Mitigation Plan ---PAGE BREAK--- 03 Priority Projects ---PAGE BREAK--- Priority Projects • Steering committee prioritized projects considering: – Wildfire risk to HVRAs – Consistency with CWPP – Project size – Probability of success – Land ownership – Environmental approvals • Identified three priority projects Identify Priority Projects ---PAGE BREAK--- Priority Projects Size: 300 acres Goal: WUI protection Evacuation corridor projection Land Ownership: Private CWPP: Markleeville Priority 1, 3, and 4 Highest risk in Alpine County Markleevillage ---PAGE BREAK--- Priority Projects Size: 430 acres Goal: WUI protection Land Ownership: Private CWPP: Woodfords\Upper Manzanita Priority 1 Protection of Manzanita Community Manzanita ---PAGE BREAK--- Priority Projects Size: 130 acres Goal: WUI protection Defensible space Land ownership: Private CWPP: Bear Valley Priority 1, 2, 3 Community protection building on USFS, County, and resident work Bear Valley ---PAGE BREAK--- 04 Next Steps ---PAGE BREAK--- Next Steps For each project area: • Define fuel treatment methods and locations – Mechanical – Hand tools – Prescribed burn/Pile burn • Landowners will be consulted regarding treatment methods Project Definition ---PAGE BREAK--- Next Steps • Tribe outreach and consultation • Biological and cultural resource surveys • Impact Analysis • Publish draft environmental document Environmental Review ---PAGE BREAK--- Schedule Step Timing Second Public Workshop April 2020 Finalize WRMP Spring 2020 Conduct Environmental Studies and Review Spring – Fall 2020 Draft Initial Study/Mitigated Negative Declaration Winter 2021 Third Public Workshop Winter 2021 Final Initial Study/Mitigated Negative Declaration Spring 2021 Project website: http://www.alpinecountyca.gov/index.aspx?NID=504 Direct email questions to Zach Wood, Alpine County Planner: [EMAIL REDACTED] ---PAGE BREAK--- 05 Question & Answer ---PAGE BREAK--- Questions? Project website: http://www.alpinecountyca.gov/index.aspx ?NID=504 Direct questions to Zach Wood, Alpine County Planner: (530) 721-5003 [EMAIL REDACTED] Three methods for asking a question: 1. Type your question into the chat box. 2. Type your name into the chat box and we will call on you. 3. If calling in by phone, please type the last four digits of your phone number into the chat box and the host will unmute your audio to allow you to ask a question. Additional questions or comments can be provided to Zach Wood (contact to left).