Terrebonne Parish Consolidated Government by yurtgc548

VIEWS: 4 PAGES: 60

									Terrebonne Parish Consolidated Government




     Floodplain Management Experience
Terrebonne Parish Consolidated Government

   Meet Mitch McDonald
    Background:
        FEMA Floodplain Management Specialist
        Urban Planner
        Engineering Technician
        Land Surveyor, Military Surveyor
        Certified Floodplain Manager

    Responsibilities Include:
        NFIP Compliance
        Construction Code Compliance
        Local Flood Zone Compliance
        Coastal Construction Permitting
Terrebonne Parish Consolidated Government

   Subject for today’s presentation:
   Post-disaster Mitigation in Terrebonne Parish:
     Issues of parish geography
     Long-term major flooding history
     Lessons learned over time
     Evolving floodplain management processes
     Accessing externally compiled lists & data sources
     Developing a floodplain structure inventory
     Future planned process development
     Time for questions
Terrebonne Parish Consolidated Government

    Geography of Terrebonne Parish:
     Maximum height above sea level is 13 feet
          Almost at Northern Parish Boundary
     Parish Area is 2,100 square miles
          New D-FIRM Map places 98% in floodplain
     5 long fingers of ridge line reaching inland
     Bayou separation with low lying wetlands
     Bayous connected by intra coastal waterway
     7 sizeable communities south of the ICW
     Houma Navigational Canal (Our MRGO)
Terrebonne Parish Consolidated Government


    Background:
    Terrebonne Parish Major Impact:
     1965 Hurricane Betsy
     1985 Hurricane Juan
     1992 Hurricane Andrew
     2002 Hurricane Lili
     2005 Hurricane Katrina & Rita
     2008 Hurricane Gustav & Ike
     2011 ? ? ? ? ? ?
Terrebonne Parish Consolidated Government


    1965 – Hurricane Betsy:
     First major storm in Parish staff memory
     Little prior knowledge or data
     No planned response process
     No floodplain management structure
     No floodplain insurance program
     No awareness of potential for mitigation
     Complex multi-layered local government
Terrebonne Parish Consolidated Government


    1965 – Hurricane Betsy:

    Lessons (not) Learned
       Viewed as a once in a lifetime event
       Modern slab on grade building permitted
       No mitigation program considered
       No significant data collection/analysis

      In essence, a return to business as usual
Terrebonne Parish Consolidated Government


    1965 – Hurricane Betsy:

    Lessons Learned

    1970 – Insurance:
       Community benefit of NFIP adoption
        was recognized and acted upon.
       Building restrictions implemented, BUT
        Planning variances were issued freely
Terrebonne Parish Consolidated Government


   1974 – Hurricane Carmen:
    Minor impact on Terrebonne

    Lessons (still not) Learned
       Still little organized prior data available
       Still no planned response process
       Still no floodplain management structure
       Still complex & conflicting local government
       Still no focus on mitigation
Terrebonne Parish Consolidated Government

 1974 – Hurricane Carmen:
   Lessons Learned:

   1984 – Structure of Government:
     Transition from the complex multi-layer,
     small unit system of local government to
     a new system of consolidated governance,
     providing economies of scale and facilitating
     co-ordinated planning over larger areas
Terrebonne Parish Consolidated Government


  1985 – Hurricane Juan:
    Situation contained increased risk:
     Erosion & settlement of barrier islands
     Land mass settlement expanded floodplain

    Offshore Storm, bringing heavy rain
    Water pushed on-shore and inland
     Over 800 residential structures flooded
    Significantly expanded flood area
Terrebonne Parish Consolidated Government


   1985 – Hurricane Juan:
   Post event experience:

   First notable population drift northwards
   Surge in expressed community concern
   Increased public awareness of issues
   Dawning recognition of the value of NFIP
   Flood Variance Board Disbanded
Terrebonne Parish Consolidated Government


   1992 – Hurricane Andrew:
   Main impact was from N.E. quadrant
   Piled water into New Orleans
   Terrebonne mainly saw wind damage
   Very little local flooding
Terrebonne Parish Consolidated Government


   Post event experience
   Recognition of a “Lucky Near Miss”
   However:
   Low level flood impact caused complacency
   Reinforced once in a lifetime mentality
   Nationally, the widespread and catastrophic
   impact of Andrew caused a major hike in
   the level of Federal awareness and concern
Terrebonne Parish Consolidated Government


   Lessons Learned:
   National recognition of and attention to the
   importance of mitigation
   Local communities really start to
   understand the value of NFIP coverage
   and the planning requirements on which
   coverage is dependent
   1997 – ICC coverage started
Terrebonne Parish Consolidated Government


   2002 – Hurricane Lili:
   Major flooding event for the Parish
         (1,000 + Structures)
    280 ICC letters issued
       149 Mitigation completion certificates

   First key learning engagement with FEMA
   Exploration of elevation programs
   Broad elevation needs plan evolved
Terrebonne Parish Consolidated Government


   Post Event Experience:
   Communities started to realize what could
   be done under the Hazard Mitigation
   Grant Program

   Individuals saw benefits and assistance
   gained by neighbors and friends
   Start of local interest in mitigation options
Terrebonne Parish Consolidated Government


   Lessons Learned:
    First Hazard Mitigation program developed
    2005 – Parish sets cumulative substantial
          improvement (CSI) policy:
     Flood damage validated from prior NFIP list
     Validate structure value from Tax Assessment
     Track improvements through Permit Database
Terrebonne Parish Consolidated Government


   2005 – Hurricanes Katrina & Rita:
   Katrina pushed water outwards, but
   Rita brought major flooding
   Over 4000 flooded structures
   2500+ NFIP claims paid in Terrebonne
    700+ Substantial damage letters issued
    470+ Completion of Mitigation Certificates
Terrebonne Parish Consolidated Government


   Post event experience:
   High expectations from post Lili experience
   Significant demand for HMGP assistance
   System overwhelmed by demand
   4,700 claims through NFIP and Road Home
   Claims paid made without permit application
   Complications from post-fact permitting
Terrebonne Parish Consolidated Government


   Post event experience:
   Passive response rather than proactive
   No seeking out repairs needing permits
   Left residents to apply for permits
   Little publicity about need for permits

   Mailed to RSDE list (50% undeliverable)
   % damage assessed from RSDE
Terrebonne Parish Consolidated Government


   Lessons Learned:
    2006 – Parish expands (CSI) policy:
     Flood damage validated from prior NFIP list
     Validate structure value from Tax Assessment
     Track improvements through Permit Database
     Validate damage from RSDE lists
     Required cost validation by contractor estimate
     Document events in the Permit Database
Terrebonne Parish Consolidated Government


   Lessons Learned:
   Community Assistance Contact sample
     stimulated further compliance effort
   2007 – Started tracking cumulative damage
   Inspection / Re-inspection:
   2,500 structures on NFIP claims list
   1,100 structures on Road Home list
     760 structures on Repetitive Loss list
          (Now 1,900+)
Terrebonne Parish Consolidated Government


   Lessons Learned:
   Start to actively engage community
   Verified permit status of each listed structure
   Wrote to owners of non-compliant structures
   Mailed 780 letters from PSDL list
   Responses help assess potential ICC claims
   Gustav and Ike overtook these processes
Terrebonne Parish Consolidated Government


   2008 – Hurricanes Gustav & Ike:
   Gustav – wind event with only moderate
             coastal flooding (235 Structures)
   Ike - brought major flooding (3,000+ Structures)
    300+ Substantial damage letters issued
    200+ Mitigation Completion Certificates
   Over 450 structures mitigated before Ike
        (None flooded during Ike)
Terrebonne Parish Consolidated Government


   Post event experience:
    Started SFHA flooded structure inventory
    2200 Letters to NFIP Policy Holders
           (Identified through permit tracking )
    264 – Increased Cost of Compliance list
     333 – HMGP + ICC list
     728 – Possible Substantial Damage List
     111 – Cumulative Damage list
Terrebonne Parish Consolidated Government

 Post event experience:
  Community now highly sensitized to FEMA
  program benefits.
  Claims made under multiple programs and
  from multiple sources NFIP:SBA:ICC:Banks etc.

    Some applicants self mitigating
    Options to pool money from other sources
    Waiting for HMPG is not an option
Terrebonne Parish Consolidated Government


   Lessons Learned:

   Community benefit of proactive approach
   Use outside data sources for outreach

   Need for a floodplain structure inventory
   ISSUE:
   Not achievable within normal resource limits
Terrebonne Parish Consolidated Government


   2009 – The Delicate Balance:
   Thursday 27 March 2009
   The current precarious balance in our Parish
   floodplain was heavily underlined during a single
   night of heavy rain which left almost 400
   residential structures flooded – some of them to
   depths of up to 3.5 feet.
   This almost equaled one half of the flooding
   sustained during Hurricane Juan in 1985 !
Terrebonne Parish Consolidated Government


     Accumulated Impact Experience:
     9 Hurricanes in 44 years
     Recently, 5 Hurricanes in 7 seasons
        1965 Hurricane Betsy
        1974 Hurricane Carmen
        1985 Hurricane Juan
        1992 Hurricane Andrew
        2002 Hurricane Lili
        2005 Hurricane Katrina & Rita
        2008 Hurricane Gustav & Ike
        2011 ? ? ? ? ? ?
Terrebonne Parish Consolidated Government


   Post Ike Floodplain Structure Inventory:

   10,491 Residential Structures in Floodplain
                605 Flooded and Destroyed
                208 Flooded and Abandoned
              2,022 Flooded and Repairable
    2,245 Post FIRM structures – No Water
    3,929 Partly elevated structures – No Water
          (500+ on 3ft/4ft piers after Rita)
    1,482 Slab on grade – No Water
Terrebonne Parish Consolidated Government


   Post Ike Floodplain Mitigation:
   From SFHA Structure Inventory Project:
         605 Flooded and Destroyed
         208 Flooded and Abandoned
         813 Declared Substantially damaged
             Only 35 carried flood insurance !
    400+ Demolition Permits (350+ Completed)
    260+ PA Demolitions     ( 71 Completed)
    153 Pending Completion
Terrebonne Parish Consolidated Government


   Post Ike Floodplain Mitigation:
   From Ike SDLs Issued

    312 ICC Mitigation Permits
        182 Completed Elevation
         14 Completed Demolition
       116 Still to be completed
Terrebonne Parish Consolidated Government


   Floodplain Database:
   For all 10,491 structures in the highest risk areas:

     Physical Address and GPS location
     Elevation (on grade, block, full or old elevation)
     In-structure water level from Hurricane Ike
     Inventory of destroyed & uninhabited structures
     Inventory of anticipated permit applications
    FEMA quick claim list cross reference
Terrebonne Parish Consolidated Government


   Floodplain Database:
   Collecting the data took commitment:
       Our staff provided local knowledge
       Our Parish provided local resources
       Building inspections generated some data
       Parish management supported the initiative
       Institute for Building Technology & Safety
        (IBTS) mangaged the project as a
        sidebar to inspection activity.
Terrebonne Parish Consolidated Government

   Floodplain Database:
   The SFHA Structure Inventory has also
   generated the data required to:
      • Develop cost benefit analysis to justify 3
        levee improvement projects under CDBG;
      • Meet data analysis needs for community
        planning activities;
      • Provide HMGP qualification evidence
      • Support FEMA individual assistance claim
        assessments;
Terrebonne Parish Consolidated Government

   Floodplain Database:
   The data represents a valuable tool which
   serves immediate planning needs.
   The Parish understands that it is a work in
   progress which will take effort to maintain,
   expand and improve.
   The Parish has made application for FEMA
   funding to maintain/expand the inventory
   and improve its database.
Terrebonne Parish Consolidated Government


   Floodplain Database:
    Next Steps:
     Cross reference with prior damage lists
     Cross reference with other agency claims
     Target structure elevation needs advice
     Target building permit requirement notices
     Target building code enforcement activity
     Demonstrate structure demolition needs
     Update through link to building inspections
     Expand the at-risk area covered
Terrebonne Parish Consolidated Government

  Overall Lessons Learned:
    Communities still need their options explained
    Aggressive proactive approach pays dividends
    Community awareness aids administration
    Documentation advances learning processes
    The value of a floodplain structure inventory
    Integrate data from many external sources
    Experienced external support is available
    Ideas and developments need to be shared
    The process is evolutionary & ongoing
Terrebonne Parish Consolidated Government

 Why is it . . . . .

     that common sense always seems to be
        the least common of all the senses




                       ?
Terrebonne Parish Consolidated Government

    A good deed gone bad
    VARIANCE      n. (vair-ee-unce)

    Technical term: used in floodplain management
    to describe a situation where some well-
    meaning person with authority has allowed a
    structure to be built without it having to comply
    with normally required, sensible and proven
    safeguards; usually resulting in higher levels of
    danger and long term cost for the owner,
    occupier, general public and taxpayer.
Terrebonne Parish Consolidated Government

    A good deed
    1980 slab on grade by variance
Terrebonne Parish Consolidated Government

    A good deed ?

    1985 Benefit of variance ?
Terrebonne Parish Consolidated Government

    A good deed ?

    2002 Benefit of variance ?
Terrebonne Parish Consolidated Government

    A good deed ?

    2005 Benefit of variance ?
Terrebonne Parish Consolidated Government

    A good deed ?

    2008 Benefit of variance ?
Terrebonne Parish Consolidated Government

    A good deed ?

    Now the costs really start !
Terrebonne Parish Consolidated Government

    A good deed ?

    And then the costs rise !
Terrebonne Parish Consolidated Government

  A good deed ?

  And they rise !
Terrebonne Parish Consolidated Government

   A good deed ?

   And they continue to rise !
Terrebonne Parish Consolidated Government




      VARIANCE n. (vair-ee-unce)


      A real good way to mess up the life of
      someone you don’t like !
Terrebonne Parish Consolidated Government




           Thank You
      for this opportunity
    to share our experience
Terrebonne Parish Consolidated Government




        ANY QUESTIONS



                     ?
Terrebonne Parish Consolidated Government




     Floodplain Management Experience

								
To top