Public Open Houses December 9, 11, and 12, 2013 Tonight's Speaker - PowerPoint PPT Presentation

COOK COUNTY REGIONAL HAZARD MITIGATION PLAN Public Open Houses December 9, 11, and 12, 2013

Tonight's Speaker • Rob Flaner – Hazard Mitigation Plan Technical Lead, Tetra Tech, Inc. • Technical consultant to Cook County Department of Homeland Security and Emergency Management (DHSEM) • Former Federal Emergency Management Agency (FEMA) employee • Facilitated 30 successful mitigation planning efforts since 2003

What are we going to talk about? • What is Mitigation? • The Disaster Mitigation Act (DMA) of 2000 • Cook County’s response to the DMA • The plan development • The County Risk Assessment • Residents role in this open house

What is Mitigation? Preparedness Mitigation Response Recovery “Sustained action taken to reduce or eliminate long -term risk to life and property” (Prevention)

What is the Disaster Mitigation Act? • Federal legislation that establishes a pre-disaster hazard mitigation program and new requirements for the national post-disaster Hazard Mitigation Grant Program (HMGP) • Acts as the keyway to federal funding • Very simple Premise: No Plan, No Money!

Provisions of the DMA • Encourages and rewards local and state pre-disaster planning • Promotes sustainability • Seeks to strengthen statewide hazard mitigation through encouraging the integration of state and local planning • Results in faster more efficient allocation of funding and more effective risk reduction projects

So Why Plan?  Establish / maintain eligibility for grant funds  Preparedness: pro-active vs. reactive  Sustainability  Key element in emergency management  Can set the course for response and recovery to impacts from natural disasters  Requires commitment and support from both the political faction and your constituency

What is Required in a DMA Plan? According to Section 201.6, 44CFR, an approved plan must: • Engage the public through all phases of the p lan’s development • A review and incorporation of plans and programs that can support/enhance hazard mitigation • Assess risk to natural hazards that impact a planning area • Identify a plan maintenance strategy • Identify and prioritize actions

Multi-Jurisdictional Plan • Preferred format by FEMA • Identifies/creates the partnerships that enhance grant funding opportunities • For multi-jurisdictional plans, all partners must: – Participate in the process – Rank Risk – Perform a capability assessment – Identify/Prioritize jurisdiction specific actions

The Planning Partnership • Plan will cover approximately 115 Municipalities within Cook County • City of Chicago is a Stake-holder rather than a Planning Partner

The Work Plan • We will follow a 7- phase process modeled after FEMA’s Community Rating System (CRS) planning process • Develop templates directly specific to multi-jurisdictional HMPs • Two-volume approach for multi-jurisdictional plans – Volume I – Planning Area (Parent Plan) – Volume II – Jurisdictional Spec ific Annexes

Phase 1-Organize Resources • Organize Planning Partners • Steering Committee • Agency coordination • Program review Phase 3-Public Involvement Strategy • Survey/Questionnaire • Website • Press releases • Public meetings Phase 2-Risk Assessment • Data Acquisition/Format • Critical facilities • Natural hazards analysis • Non-natural hazards analysis • Scenarios Phase 4-Goals, Objectives and Actions • Mission Statement • Goals and Objectives • Alternatives analysis (mitigation catalog) • SWOO Phase 7-Plan Review/Adoption Phase 5-Plan Maintenance Strategy Phase 6-Write the plan • • HMP review tool Progress reporting • Jurisdictional Annex workshop • • Pre-adoption plan submittal Continuing public involvement • Write the plan • • Plan adoption 5-year update • Technical/format edit

Steering Committee • A 27 member Steering Committee is overseeing the plan update • Has multi-disciplined representation  Planning Partner representative(s)  Stakeholders (Business, academia , government)  State Agencies  Federal Agencies  Emergency Management • Has met 5 times since July • All meetings are open to the public

The Vision Statement • “Utilize the best available science and technology to identify risks and through partnerships identify sustainable cost-effective actions and strategies to mitigate the impacts and reduce vulnerabilities to natural hazards in order to protect the health, safety, welfare, and economy of the communities of Cook County.”

Goals and Objectives • The Steering Committee has identified 6 goals and 14 objectives that will help achieve the guiding principle • All of these planning components are linear • These are posted on the Hazard Mitigation Plan website

The Cook County Risk Assessment

What is Risk? Risk is defined as a function of:  Hazard • Source of potential danger or adverse condition  Exposure • Manmade or natural features that are exposed to the hazard  Vulnerability, and • Damage susceptibility of the exposed features  Capability • Regulatory capability • Technical capability • Financial capability

Risk Reduction To reduce Risk:  Manipulate the Hazard : • Structural flood control  Reduce Exposure : • Property acquisition  Reduce Vulnerability : • Retrofitting  Increase capability : • $, preparation, technical assistance, and planning

Development of the Cook County Risk Assessment 1. Hazard Locators (Soils, 5 floodplains, landslides) 2. Inventories (Buildings, roads, critical areas) 3. Exposure (Direct and Indirect) 4. Disaster Scenario (Vulnerability assessments) 5. Suggest Risk Reduction Measures 1

Risk Assessment Methodology  Assess hazard • Past events • Areas most affected • Frequency • Severity • Warning time for response  Determine Exposure  Assess Vulnerability • Loss Estimation

What is HAZUS? • HAZUS-MH is a powerful risk assessment methodology for analyzing potential losses from floods, hurricane winds, and earthquakes • HAZUS outputs include: • Number, location, types, and occupancy of vulnerable buildings • Actual or assessed values of the vulnerable buildings • Critical facilities • An estimate of losses per hazard • Debris accumulation

The Hazards of Concern Hazards :  Flood (Riverine/Urban)  Earthquakes  Tornados  Severe weather (Heat, Wind, Hail, Lightning)  Severe Winter Weather (Snow/Ice)  Drought  Dam/levee Failure  Other Hazards- (pandemic, nuclear power plants, evacuees from other counties moving into Cook County, power outages, and hazardous material incidents)  These other hazards will be profiled but not assessed (analyzed)

FLOODS • 13 Presidentially declared flood disasters since 1967 • Minor flooding annually • Major flooding every 3 to 5 years • Two types of flooding: – Riverine – Urban Drainage • Basis for risk assessment – FEMA – MWRD • Basement flooding will be assessed looking at historical damages

Earthquake The impact of an earthquake is largely a function of the following:  Ground Shaking (ground motion accelerations)  Liquefaction (soil stability)  Distance from the source of the quake

EQ Source-Faults • Fault — A fracture in the earth’s crust along which two blocks of the crust have slipped with respect to each other • There are faults traces within Cook County • Largest recorded event in Illinois was a 5.1 event in 1909 • Cook County has had 2 events (1911 and 1925)

Earthquake The Earthquake risk assessment has been developed using the following tools:  Shake maps that illustrate recorded ground motion potential in terms of “peak ground acceleration” (PGA)  We have used these shake maps to run 5 scenario events • 100 year probabilistic event • 500 year probabilistic event • 7.1 scenario event on the Wabash Fault • 1909 scenario event (7 miles southwest of Lemont)  Soils mapping illustrating soils characteristics

Earthquakes Earthquake risk has been assessed using the following methods: Probabilistic: – 100 year PGA (Peak Ground Acceleration)  40% chance in 50 years – 500 year PGA  10% chance in 50 years Method uses information from all historic earthquakes, plus geologically inferred earthquake sources (faults, locations, and magnitudes), and computes the probable ground shaking levels that may be experienced during a 100-year or 500-year recurrence period

Earthquake Mercalli Scale and Peak Ground Acceleration Comparison PERCEIVED POTENTIAL PEAK ACC MM SHAKING DAMAGE (%g) I - IV Weak - Light None .17% - 3.9% V Moderate Very Light 3.9%-9.2% VI Strong Light 9.2%-18% VII Very Strong Moderate 18%-34% VIII Severe Moderate/Heavy 35%-65% IX Violent Heavy 65%-124% X Extreme Very Heavy >124%

Liquefaction • Liquefaction : Liquefaction is the complete failure of soils, occurring when soils lose shear strength and flow horizontally; it is most likely to occur in fine grain sands and silts, which behave like viscous fluids when liquefaction occurs