2017 Marin County Unit Strategic Fire Plan & Community Wildfire
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2017 Marin County Unit Strategic Fire Plan & Community Wildfire Protection Plan (CWPP) MCFD Unit Strategic Fire Plan Christie Neill 5/15/2019 ● ● ● Plan Amendments Plan Amendments Table 1. Plan Amendments. Page Numbers Updated Date Section Updated Description of Update Updated By 4/18/18 Appendix A Minor update to project list CNeill updates to projects and 5/20/19 Appendix A & C 72 & 78 CNeill accomplishments Updates to unit goals & 5/20/19 Appendix B 76 CNeill objectives ● ● ● iii ● ● ● Contents Contents 1. Unit Overview ..................................................................................................................................................................... 8 1.1 Fire Agencies, Capabilities, and Preparedness ........................................................................................... 9 1.2 Agency Coordination ........................................................................................................................................ 14 1.3 Population and Housing .................................................................................................................................. 16 1.3.1 Population Flux .................................................................................................................................... 17 1.4 Land Ownership .................................................................................................................................................. 17 1.5 Natural Resources .............................................................................................................................................. 18 1.5.1 Biodiversity ............................................................................................................................................ 18 1.5.2 Watersheds and Water Districts .................................................................................................... 19 1.6 Marin County’s Wildland Urban Interface ................................................................................................ 20 1.7 Roads and Streets ............................................................................................................................................... 22 2. Fire Environment ...................................................................................................................... 22 2.1 Weather .................................................................................................................................................................. 23 2.2 Vegetation and Fuels Characteristics .......................................................................................................... 25 2.2.1 Vegetation Diseases and Infestations ......................................................................................... 28 2.3 Topography ........................................................................................................................................................... 30 2.4 Fire History ............................................................................................................................................................ 30 2.5 Ignition History .................................................................................................................................................... 32 3. Collaboration ............................................................................................................................. 34 3.1 FIRESafe MARIN .................................................................................................................................................. 35 3.2 Fire Agencies ........................................................................................................................................................ 35 3.3 Land Management Agencies ......................................................................................................................... 36 3.4 California Forest and Rangeland Priority Landscapes .......................................................................... 37 4. Hazard, Asset, Risk Assessment Approach ........................................................................ 39 4.1 Assets at Risk ........................................................................................................................................................ 39 4.1.1 Areas of Concern ................................................................................................................................ 42 4.1.2 Fire Roads and Fuelbreak Networks ............................................................................................ 42 4.2 Risk Assessment Approach ............................................................................................................................. 43 4.2.1 Step 1: Prepare Community Base Map and Areas of Concern .......................................... 45 4.2.2 Step 2: Prepare Vegetation and Fuel Model Data .................................................................. 45 4.2.3 Step 3: Acquire Local Weather and Fuel Moisture Data ...................................................... 45 4.2.4 Step 4: Prepare a Population Density Map ............................................................................... 47 4.2.5 Step 5: Perform Fire Behavior Modeling .................................................................................... 47 4.2.6 Step 6: Develop Composite Maps ................................................................................................ 49 4.2.7 Step 7: Develop Rankings for Areas of Concern ..................................................................... 49 5. Modeling Results ...................................................................................................................... 50 ● ● ● iv ● ● ● Contents 5.1 Average Fire Season Modeling Results ...................................................................................................... 50 5.2 Extreme Fire Conditions Modeling Results ............................................................................................... 54 5.3 Discussion of Findings ...................................................................................................................................... 58 6. Pre-Fire Management Strategies and Tactics .................................................................... 60 6.1 Building Codes and Standards ...................................................................................................................... 60 6.2 Hazardous Fuel Reduction .............................................................................................................................. 61 6.3 Information and Education ............................................................................................................................. 62 6.3.1 Information ........................................................................................................................................... 62 6.3.2 Education and Outreach .................................................................................................................. 62 6.4 Fire Detection Cameras .................................................................................................................................... 63 7. Structural Ignitability .............................................................................................................. 64 7.1 Opportunities to Reduce Structure Ignitability ....................................................................................... 65 7.1.1 Increase Education about Structural Ignitability and Defensible Space ........................ 65 7.1.2 Inventory Structures with Shake and Shingle Roofing ......................................................... 66 7.1.3 Uniform Adoption of WUI Ordinance ......................................................................................... 67 7.2 Structure Ignitability Efforts Currently in Place ....................................................................................... 67 8. Recommendations ................................................................................................................... 69 8.1 Plan Recommendations ................................................................................................................................... 69 8.1.1 Continue to identify and evaluate wildland fire hazards ..................................................... 69 8.1.2 Articulate and Promote the Concept of Land Use Planning Related to Fire Risk ...... 70 8.1.3 Support and continue to participate in the collaborative development and implementation of wildland fire protection plans ................................................................. 70 8.1.4 Increase awareness, knowledge, and actions implemented by individuals and communities to reduce human loss and property damage from wildland fires ........ 71 8.1.5 Integrate fire and fuels management practices ...................................................................... 72 Appendix A: Identified Pre-Fire Projects .................................................................................. 73 Appendix B: Unit Goals and Objectives .................................................................................... 76 Appendix C: Unit Report on Accomplishments ......................................................................