Multi-jurisdictional Multi-Hazard Mitigation Plan Development in San Diego

San Diego County

•  Population of 3.177 M in 2014

•  Projected population of 3.39 M by 2020

•  4,200 square miles of land area

18 Incorporated Cities

•  Oceanside •  Poway •  San Diego •  San Marcos •  Santee •  Solana Beach •  Vista

•  Carlsbad •  Chula Vista •  Coronado •  Del Mar •  El Cajon •  Encinitas •  Escondido •  Imperial

Beach •  La Mesa •  Lemon Grove •  National City

Other Interested Parties

•  Fire Districts •  Water Districts •  Port/Airport

Authority •  Native American

Tribes •  Others

Hazards in San Diego

•  Earthquakes •  Wild-fires •  Flooding •  Landslides •  Drought •  Tsunamis

•  Hazardous Materials •  Costal Storms/

Erosion •  Dam Failure •  Terrorism •  Extreme Heat

Climate Impacts

•  Annual temperatures expected to rise by 2 – 3o F by 2050.

•  Heat waves will increase in number and intensity

Climate Impacts

•  Sea Level Rise expected to be: –  1.56 inches to 11.76 inches by 2030 –  4.68 inches to 2 feet by 2050 –  16.56 inches to 53.48 inches by 2100

Climate Impacts

•  Precipitation – Number of rainy

days will decrease

– Average precipitation amounts will increase

Climate Impacts

Simulated Annual-Mean Soil Moisture, Western San Diego County

Droughts  become  50%  more  common  by  2050  

Source: Climate Change-Related Impacts in the San Diego Region by 2050, California Climate Change Center, August 2009

Hazard Mitigation Planning Working Group

•  18 Municipalities •  Fire Districts •  Water Districts •  San Diego Foundation/ICLEI •  Federal, State and local agencies

with mitigation responsibilities

…priorities and commitments will be adopted locally so local general-purpose governments need to be actively involved

Adding Climate Change

•  Discussed at initial WG Meeting •  Developed group consensus •  Briefed Unified Disaster Council •  ICLEI/San Diego Foundation

provided two Climate Change Workshops to illustrate current and potential future impacts

•  Stakeholder Workshop scheduled for next month

Impacts of Climate Change

•  Higher temperatures & shorter rainy season – Drier soils & vegetation = increased fire

risk. Longer, less predicable fire seasons

– Regions water sources may shrink 20% or more by 2050. Water demand expected to increase by 29%

Impacts of Climate Change

•  Heat waves, wildfires – Direct health exposure risk

•  Elderly, children, low-income residents, chronically ill

– Exacerbates air pollution – Increased demand for electricity leading

to potential brown-outs/black-outs

Impacts of Climate Change

•  Sea Level Rise: – Increasingly frequent extreme sea levels – Storm related flooding will occur more

often and reach farther inland – Increased beach and cliff erosion – Most vulnerable:

•  Stormwater, wastewater, shoreline parks, commercial facilities, ecosystems

Mitigation Strategy

•  Main components: – Goals – General guidelines for what we

want to achieve (broad policy-type statements)

– Objectives – Focuses on how to achieve goals

– Actions – Specific projects and activities designed to help achieve the goals

– Action Plan – Describes how mitigation actions will be implemented

Types of Mitigation Actions Used in San Diego

•  Structural solutions –  Retrofitting

unreinforced masonry structures

–  Flood control projects –  Improved drainage –  Building materials (i.e.,

Class A Roofs, etc.) –  Seismic upgrades –  Water storage upgrades –  Upgrade access for first

responder equipment

Types of Mitigation Actions Used in San Diego

•  Regulatory solutions –  Vegetation Management

•  Weed abatement regulations

–  Building/Fire Codes –  Fire Safety inspections –  Climate Action Plan –  Floodplain, Coastal Bluff Overlay

Zones –  Water Master Plans –  Upgrade water delivery systems

Types of Mitigation Actions Used in San Diego

San  Diego  River  Park  Founda2on  volunteers  plan2ng  na2ve  vegeta2on  

•  Non-structural solutions –  Acquire land for open space

development –  Manage open space preserves to

minimize fuel load –  Becoming “Tsunami Ready” or

“Storm Ready” –  Public/Private partnerships

San Diego County Hazard Mitigation Plan Hazard Mitigation Planning Process

San Diego County Hazard Mitigation

Work Group

Individual Municipalities

UDC

Final Draft Plan

Unified Disaster Council

Adoption at Local Level

San Diego County Board of Supervisors, City

Councils and Governing Boards

Risk Assessment is completed with input from municipalities.

The Work Group members supply input from municipalities to finalize the plan.

The final plan is forwarded to State OES/FEMA for review. Once conditional approval is received, plan is then adopted by all participating jurisdictions.

San Diego County Hazard Mitigation

Work Group Draft Plan

Individual Municipalities

San Diego County

•  Board of Supervisors/City Councils –  Initiate, authorize and support the hazard

mitigation planning process –  Adopt the Hazard Mitigation Plan

•  Unified Disaster Council –  Policy Making

•  Office of Emergency Services (OES) –  Project management –  Community liaison –  Meeting coordination and facilitation –  Active project support and involvement

Individual Jurisdictions

“Ground-truth” information and priorities from Hazard Mitigation Work Group including: ü Providing more detailed information for

potential loss estimation; and ü Identifying, recommending and approving

specific mitigation action items for their communities

Questions and Answers