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Hazard Mitigation Public Meeting #2


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Presentation from second public meeting for New Orleans S&WB Hazard Mitigation Plan.

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Hazard Mitigation Public Meeting #2

  1. 1. USDA: NRCC Photo Gallery Hazard Mitigation Plan Public Meeting #2 March 10th, 2010
  2. 2. Agenda  Introduction Paul G. Seldes, Lambert Engineers, LLC  About the Sewerage and Water Board of New Orleans  What is Hazard Mitigation?  Hazard Mitigation Plan Overview  Hazard Assessments  Vulnerability Assessments  Mitigation Projects  Updating and Monitoring the Plan  Continued Public Involvement  Plan Adoption and Next Steps  Summary  Public Comments  Wrap-Up
  3. 3. Team Introductions  Sewerage and Water Board  Marcia St. Martin, Executive Director  Robert Miller, Deputy Director  Emergency Management Operations  Jason Higginbotham  Tom Miller  Environmental Affairs Division  Gordon Austin  Harvey Stern  Community and Intergovernmental Relations  Robert Jackson  Risk Management  Ike Cameron  Lambert Engineers  Paul Seldes, FPEM, CHS-III - Hazard Mitigation Consultant & Project Manager  Dennis Lambert, PE  Rich Campanella, GIS Specialist  Infinity Engineering Consultants  Michael Leitzinger  GOHSEP  Shenetia Henderson-McGee
  4. 4. About The Sewerage and Water Board of New Orleans The Sewerage and Water Board (S&WB) has been serving citizens and protecting the environment since 1899. Originally formed to combat disease by providing safe drinking water and eliminating the health hazards of open sewer ditches, today the S&WB continues its mission using 21st century technology. The Sewerage and Water Board of New Orleans consists of the Mayor, the two at-large council members of the City Council, one district councilman selected by the Council, two members of the Board of Liquidation, City Debt, and seven citizen members appointed by the Mayor, in accordance with the law, for overlapping terms of 9 years. The S&WB is divided into 3 main areas: Water, Sewerage and Drainage; serving 101,833 residential customers, 4,503 multi-residential customers, 12,350 commercial customers and 40 industrial customers for a customer base of 118,726
  5. 5. Water
  6. 6. Sewer
  7. 7. Drainage
  8. 8. Hazard Mitigation 80% of New Orleans Flooded
  9. 9. What is ―Hazard Mitigation‖?  Any sustained measures undertaken to reduce or eliminate the risks posed by natural and/or manmade hazards on a place and its population.  Hazard Mitigation Plan: A plan to reduce a jurisdiction’s risk and exposure to disasters  Local governments must have a local hazard mitigation plan to apply for certain federal grant programs
  10. 10. What is ―Hazard Mitigation‖? Hazard mitigation measures can include structural projects…
  11. 11. What is ―Hazard Mitigation‖? … non-structural projects …
  12. 12. What is ―Hazard Mitigation‖? …regulatory and policy practices…
  13. 13. What is ―Hazard Mitigation‖? …training and educational programs…
  14. 14. What is a Hazard Mitigation Plan? It all boils down to two basic questions: 1.What hazards present the greatest risk to the jurisdiction and its citizens? 2.What are the most effective ways to reduce those risks?
  15. 15. Regulatory Requirements  44 CFR 201 – Code of Federal Regulations  The Stafford Act - Robert T. Stafford Disaster Relief and Emergency Assistance Act of 1988 (amended by DMA 2000)  44 CFR 201.6 details the requirements for local hazard mitigation plans  Local plans must be submitted to State (GOHSEP) and FEMA for approval.  44.CFR.201 requires the plan be updated every 5 years  More information on HMGP available at  The State of Louisiana Hazard Mitigation Plan:
  16. 16. The goal is to mitigate the losses from identified hazards.
  17. 17. Why does the Sewerage and Water Board need a plan?  The purpose of this project is to develop a Local Hazard Mitigation Plan (LHMP) that complies with the HMGP (Hazard Mitigation Grant Program) and 44.CFR.201.6 and classifies the Sewerage andWater Board of New Orleans as a single, local jurisdiction.  As a single, local jurisdiction with a LHMP, the S&WB can be a direct applicant to the State for various FEMA grant funding programs and reimbursements.
  18. 18. Planning Process Overview  There is a lot of jargon that is used to describe the planning process. We’ll try to be jargon free.  This graphic shows the process recommended by FEMA. We’ll go thru this step-by-step.
  19. 19. Hazard Mitigation Simplified 4 Phase Process Organize Resources Implement the Assess Hazards Plan & Monitor & Risks Progress Develop a Mitigation Plan
  20. 20. How is the Plan Structured?  Introduction and process  Identification of hazards and threats from natural or manmade sources  Assessment of risks to populations, property, economies  Critical Facility Data  Assessment of capability for hazard mitigation  Action plans to reduce risk  Plan Implementation and Maintenance
  21. 21. Phase 1 – Organize Resources  Assess Community Support  Build the Planning Team  Engage the Public*  Organize resources and process
  22. 22. S&WB Differences  The S&WB service networks (water, sewer, drainage) are critical facilities  Hazards impact the S&WB differently than they impact the City of New Orleans  We seek to identify and mitigate the ―systemic‖ impact that represents a risk to public health, safety and service delivery.
  23. 23. Phase 2 – Assess Risks  Risk assessment answers the fundamental question that fuels the natural hazard mitigation planning process: "What would happen if a natural hazard event occurred in this area?"  Risk assessment is the process of measuring the potential loss of life, personal injury, economic injury, and property damage resulting from natural hazards by assessing the vulnerability of people, buildings, and infrastructure to natural hazards.
  24. 24. Identified Hazards Natural Hazards Manmade Hazards Hurricane/Tropical Cyclone - Terrorism/Civil Unrest Flood Hurricane/Tropical Cyclone - Levee Failure Wind Flood (other) Hazardous Materials Earthquake Cyber Attack Tornado Pandemic Disaster Aftermath Severe Thunderstorms Lightning Severe Heat/Severe Cold Storm Surge Hailstorm Drought Subsidence (Erosion, Expansive Soils) Wildfire Winter Storm Avalanche Tsunami Volcano
  25. 25. Included Hazards Hazard Why Identified Probability Impact History Flood High risk of High High Katrina 2005, Ivan 2005, TS Isidore occurrence 2002, Lilli 2002 TS Allison 2001, April 1999 flooding Hailstorm NOLA has recorded Low Low 2002 hailstorm with minimal the 8th most costly damage to a crane (DPS 6) hailstorm hazard for the US Hazardous Materials Potential for Low High July 23, 2008 – oil spill in river occurrence and Oct 28, 2008 – oil spill in river impact to S&WB assets Presents systemic impact to S&WB
  26. 26. Hazard Why Identified Proba Impact History bility Hurricane/Tropical Region is at High High Katrina 2005, Ivan 2005, TS Cyclone (Storm) – significant risk for Isidore 2002, Lilli 2002 Flood this hazard event TS Allison 2001 Coastal Storm per historical record Hurricane/Tropical Region is at High High Katrina 2005, Ivan 2005, TS Cyclone (Storm) – significant risk for Isidore 2002, Lilli 2002 Wind this hazard event TS Allison 2001 Coastal Storm per historical record
  27. 27. Hazard Why Identified Probability Impact History Levee Failure Catastrophic Low High Katrina 2005 potential impact Lightning / Severe High probability of High Medium Various Storm occurrence / Thunderstorm Severe Heat / Severe Exacerbates general Low Low Various Cold / Winter Storm maintenance and repair Saltwater Intrusion Presents systemic Medium Medium Occurrence in mid-1980’s. no impact to S&WB data currently available. Storm Surge Catastrophic High High Katrina 2005 potential impact Subsidence (Erosion) Long term damage Medium Low No data in historical record Exacerbates damage by other hazards Tornado Significant damage Medium Low Two tornados in 2006. No results damage to S&WB assets in historical record. Feb 2007
  28. 28. Risk Assessments Probability Impact Low Medium High Flood Hazardous Materials Hurricane Flood - Hurricane High Levee Failure Wind Storm Surge Lightning Medium Salt Water Intrusion Severe Storm Thunderstorm Severe Heat/Cold Subsidence Low Hailstorm Winter Storm Tornado
  29. 29. Risk Assessment  Each hazard is defined in terms of:  Description – What is this hazard?  Past Occurrences – When has this hazard occurred?  Location – What areas are subject to the hazard?  Severity – How bad can the hazard get?  S&WB Impact – What can this hazard do to S&WB assets?  Probability – How likely is this hazard?
  30. 30. Vulnerability Assessment As part of the assessment we also: 1.Assess relative importance or ―criticality‖ of facilities 2.Assess risk to facilities from different hazards, based upon estimated losses The S&WB network is widespread and complex and serves as part of the perimeter defense for the City of New Orleans.
  31. 31. Vulnerability Summary Hazard Vulnerability Flood Due to the potential for significant flooding (see Figure 26), S&WB assets located throughout the services area are at risk. The damage or loss of a single critical asset (pump station, treatment plant, intake), places greater burden on other system components thereby increasing the risk to the entire system. Flooding poses a systemic risk with potential losses dependent on the extent of flooding. Major flooding as seen after Hurricane Katrina poses potential losses in the hundreds of millions of dollars. Key factors for losses remain the depth and duration of flood water. Hailstorm Hailstorms can occur anywhere in the region and structures and vehicles are vulnerable to damage. Damage from this hazard tends to be non- systemic and be repair and maintenance oriented.
  32. 32. Hazardous Materials Hazardous spills in close proximity to water intakes remain possible given the traffic on the Mississippi River. The closure of water intakes would pose a significant risk to the potable water supply for the S&WB service area. There is no alternate source of potable water for the service area. Any loss of water intakes for an extended period would represent a financial impact beyond measure. Hurricane/Tropical Cyclone Historically, the New Orleans region is extremely vulnerable to this (Storm) – Flood hazard. The combined impacts (wind, rain, flood, levee, storm surge) Coastal Storm place the entire S&WB network in the risk area. See the “Flood” hazard description above. Hurricane/Tropical Cyclone Historically, the New Orleans region is extremely vulnerable to this (Storm) – Wind hazard. The combined impacts (wind, rain, flood, levee, storm surge) Coastal Storm place the entire S&WB network in the risk area. The standing HV power lines are at risk from wind damage. Based on Katrina (2005), $2,000,000 was spent to repair/replace these poles. S&WB buildings are subject to “typical” structural building damage from storm winds (roof, windows, wall, etc). Levee Failure Though unlikely by itself, the resultant flooding from a levee failure would knock out sections of the S&WB network. The vulnerability of S&WB assets are consistent with the flood hazard (above).
  33. 33. Lightning / Severe Storm Flooding from severe storms and thunderstorms can pose a significant / Thunderstorm risk. Heavy rainfall events are not uncommon in the region and assets vulnerable to flooding are at risk from this hazard. Lightning strikes in the region are also fairly common. HV equipment and system are vulnerable to over voltage and voltage spikes. Aside from flood potential, most vulnerability remains similar to the flood hazard (above) Severe Heat / Severe Cold / The infrastructure (pipes, valves, etc) are subject to damage from Winter Storm extended freeze events. Some equipment is subject to overheating during extended heat event. This hazard tends to be non-systemic and repair/maintenance oriented. Saltwater Intrusion Depending on the proximity of a salt water ridge to water intakes and the concentration levels of sodium chloride, the entire potable water system is vulnerable. Loss of the potable water system is a financial impact beyond value. Storm Surge Given the high risk of tropical storms, storm surge poses the same issues as flood and levee failure for S&WB assets.
  34. 34. Subsidence (Erosion) This hazard poses a risk to all underground infrastructure (pipes, mains, valves). As this is a slow process, the issue is non-systemic. Tornado The region has a moderate risk for tornados given the national averages (see Figure 36). Structures and assets can be struck but a) the damage tends to be non-systemic, and b) the region tends to experience minor F0-F2 events.
  35. 35. Phase 3 – Develop a Mitigation Plan  The data gathered in the previous phases and the information revealed in the hazard profiles and loss estimation will be used to develop mitigation goals and objectives.  Mitigation goals are guidelines that explain what you want to achieve.  Mitigation objectives are statements that detail how those goals will be achieved.
  36. 36. Develop a Mitigation Plan  Range of actions considered  Stormproofing Pumping Stations  Policy and Organizational Changes  Enhance/Expand Power Generation  Protect critical network components  Analysis of mitigation actions  Prioritization Methodology
  37. 37. Mitigation Actions 74 identified mitigation projects •4 projects completed •63 projects related to Sewer Pumping Stations •3 projects related to policy or procedure issues •5 projects with undefined timelines •35 projects scheduled for completion in 2010 Total of Estimated Amounts for projects is $98,184,480
  38. 38. Phase 4 – Implement the Plan and Monitor Progress
  39. 39. Implement the Plan Adopt the mitigation plan Implement the plan Revise the plan recommendations Evaluate your planning results
  40. 40. Monitor and Update the Plan  The plan is typically a ―living‖ document  44.CFR.201.6 requires that plans are updated every 5 years  The plan should also be evaluated and revised following actual disasters  When updating the plan we also evaluate the process  44.CFR.201.6 requires ongoing public involvement in the update process
  41. 41. Plan Adoption  Draft Plan concept reviewed and approved by S&WB Infrastructure Committee on 3/3/2010  Draft Plan to be reviewed by Sewerage and Water Board Directors 3/17/2010  Informal submission to FEMA and State  Plan comments from FEMA will be reviewed and addressed (if any)  Plan will receive formal adoption from the Board  State and FEMA formally approve Plan  End Date forplan will be available onth, 2010 The approved all the above is April 11 the Sewerage and Water Board website:
  42. 42. Summary Organize Resources Implement the Assess Hazards Plan & Monitor & Risks Progress Develop a Mitigation Plan
  43. 43. Public Comment  Please complete a speaker comment card  Speak for up to 3 minutes per speaker  There will be a 10 minute break before comments
  44. 44. Contact For more information or questions contact: Mr. Jason Higginbotham Sewerage and Water Board of New Orleans Emergency Management Operations 625 St. Joseph St.—Room 117, NO 70165 (504) 585-2020  Hazard Mitigation Plan Consultants  Lambert Engineers, LLC  Paul G. Seldes – Hazard Mitigation Consultant 504-529-7687