Community Coordination Meeting. York County, Maine. Risk MAP Study

Transcription

1 Community Coordination Meeting York County, Maine Risk MAP Study January 9, 2014

2 Agenda Welcome and Introductions Project Timeline Flood Hazard Analysis Recap (Digital Conversion, Riverine and Coastal) Flood Risk Products Action: Hazard Mitigation & Flood Insurance PPP - Public Review and Appeal Period PPP - Effect on Existing Letters of Map Change PPP - Community Adoption Process Questions 2

3 Risk MAP Study Timeline Activities Project Timeline Products Risk MAP MOU Distributed March 2011 Work Map Meeting Feb 2013 Preliminary Nov 5, 2013 CCO Meeting Jan 9, 2014 Projected Effective July 2015 Risk MAP MOU Projected LFD* January 2015 *LFD scheduled in January due to the Town Meeting requirement 3

4 CONVERSION TO DIGITAL MAPS 4

5 Digital FIRM (DFIRM) Base + Topography + = Flood Data Digital FIRM 5

6 FIRM-Based Delineation Vector Base Map Ortho Base Map Also known as Digital Lift or Digital Conversion 6

7 Zone Designation Changes OLD ZONE NEW ZONE A1 through A30 AE V1 through V30 VE B X C X 7

8 Datum Conversion Previous FIRM referenced to NGVD Datum Conversion to NAVD88 Required by FEMA for new DFIRMs Process described in Appendix B of FEMA s Guidelines and Specifications 8

9 Conversion Factor The previous effective study was referenced to the NGVD Datum All new studies are referenced to the NAVD 88 (North American Vertical Datum of 1988) The conversion factor from NGVD 29 to NAVD 88 is -0.7, and from NAVD 88 to NGVD 29 is

10 Paneling Scheme Existing Paneling System (town-wide format) 10

11 New Paneling Scheme New Paneling System (county-wide format based on USGS quadrangles) 11

12 RIVERINE FLOOD HAZARD ANALYSIS RECAP 12

13 Detailed Riverine Analysis - Berwick USGS study ( ) 9 streams Coffin Brook Coffin Brook Tributary Driscoll Brook Ferguson Brook Keay Brook Little River Worster Brook Worster Brook Tributary Revised hydrology and hydraulics Mapped with new topography 13

14 Detailed Riverine Analysis - Kennebunk USGS study ( ) 1 stream Mousam River Revised hydrology and hydraulics Mapped with new topography 14

15 Detailed Riverine Updates 15

16 COASTAL FLOOD HAZARD ANALYSIS RECAP 16

17 Coastal Analysis Source Performed new coastal flood hazard analysis Saco, Wells, York Leveraged community provided coastal flood hazard analysis Biddeford, Kennebunk, Kennebunkport Updated 2009 preliminary coastal flood hazard analysis Kittery, Ogunquit, Old Orchard Beach 17

18 LiDAR Coverage 2-foot contour data Contours generated from LiDAR mission LiDAR flown in

19 Detailed Study Coastal Analysis Coastal analysis - includes 4 main components: Stillwater Level (storm surge) + Wave Set-up Overland Wave Propagation Wave Runup and Overtopping Primary Frontal Dune 19

20 Detailed Study Stillwater Level (SWEL) 1988 USACE Tidal Flood Profiles Based on analysis from 2007 coastal flood hazard update 20

21 Detailed Study Wave Setup Numerically determined at each coastal transect Determining factors Average nearshore slope [depth of wave breaking to SWEL] Deepwater significant wave height SWEL + Wave Setup = Total Water Level (TWL) Areas where floodplain is restrictive, wave setup is removed and SWEL is mapped Constrictions such as low bridges Narrowing of the floodplain 21

22 Detailed Study Overland Wave Propagation 22

23 Detailed Study Runup and Overtopping 23

24 Detailed Study Primary Frontal Dunes 24

25 Detailed Study Summary Significant Changes from previous study: Includes Wave Set-up Includes Wave Generation other than offshore waves Includes 2% Wave Runup Includes Primary Frontal Dune 25

26 Limit of Moderate Wave Action LiMWA Areas subject to wave heights greater than 1.5 feet Defines Coastal A Zone Recommendation of building to V zone standards 26

27 FEMA Coastal Outreach Website 27

28 FLOOD RISK PRODUCTS 28

29 Flood Risk Products - Background These products are intended to help communities better understand and communicate flood risk All of these products are GIS based 29

30 Flood Risk Products - Background The following flood risk products were created for this study Changes Since Last Preliminary Maps Flood Risk Assessment Contributing Engineering Factors Coastal Hazard Identification maps Flood Risk Report 30

31 Changes Since Last Preliminary SFHA Decrease SFHA Increase 31

32 Flood Risk Assessment Annualized flood losses are displayed on the Census Block Data Aimed at depicting general flood loss areas 32

33 Contributing Engineering Factors Provide insight into the factors behind the increase or decrease in the flood hazard areas Can prove to be useful for planning and mitigation measures 33

34 Coastal Hazard Identification 34

35 Flood Risk Report 35

36 ACTION: HAZARD MITIGATION AND FLOOD INSURANCE 36

37 Mitigation Actions Address specific existing assets (e.g., elevate critical facility, enlarge a culvert, acquisition of floodprone properties, floodproof properties) Address future risks (e.g., update building codes) Based on local capabilities Build on current strengths, ongoing efforts (add-on to stormwater management regulations) Coordinate with Federal programs (e.g., NFIP, CRS) Encourage property owners to purchase flood insurance 37

38 Mitigation Action Categories STRUCTURAL /NON STRUCTURAL PROJECTS Detention Drainage Acquisition Elevation Retrofits PLANNING MECHANISMS Zoning Building Codes Ordinances Open Space Plan EDUCATION & OUTREACH Public Awareness Outreach Educational programs 38 NATURAL RESOURCE PROTECTION Stream and wetland restoration Erosion control

39 Driving Action Through HMA Grants Hazard Mitigation Assistance (HMA)includes both post-disaster and pre-disaster grants HMGP is a post-disaster grant program. PDM and FMA are available annually subject to Congressional appropriations. Mitigation Plan Requirement Local/State Cost Share States Manage Programs and Set Funding Priorities State Hazard Mitigation Officer (SHMO) is contact These grants share the common goal of reducing risk to life and property due to natural hazards 39

40 Mitigation Grants/Programs: OFAs 40

41 Driving Action Through the CRS Rewards NFIP communities taking additional actions to reduce risk Most flood insurance policies can receive discounted rates (In New England generally ranging from 5%-15%) To be eligible FEMA must determine that the community is in full compliance with the NFIP If you are interested in joining, FEMA can provide assistance For additional information please contact: Chris Markesich, FEMA Region 1 CRS Coordinator christopher.markesich@fema.dhs.gov (617)

42 Action Tracker We will input your community s action into the Action Tracker and send you a report and a link New mitigation tool Houses communityidentified mitigation actions Actions can be edited by community officials A tool for communities to support future mitigation planning efforts

43 Meet the Action Form 43

44 POST-PRELIMINARY PROCESSING (PPP) 44

45 Post-Preliminary Phase Timeline Typical Post Preliminary Phase takes approximately 20 months to complete November 5, 2013 January 8, days Est. March 1, days Est. May 31, 2014 Est. January 2015* 6 months Est. July 2015 Review and Appeal Period Compliance Period Est. February 22, 2014 *LFD scheduled in January due to the Town Meeting requirement 45

46 Community Review Public Review and Expanded Appeal Period (EAP) Process Begin reviewing now! Outreach to your community members Templates available! Statutory 90-day Appeal Period: Publication in Federal Register Letter to Community Official Newspaper publication, and Maps and data available online! 46

47 Website 47

48 Expanded Appeal Period (EAP) Process The Facts New process detailed in Procedure Memorandum issued to the public by FEMA on December 1, 2011 What s the same? An appeal must be based on data that shows the flood hazard information is scientifically or technically incorrect What s different? Anything that may have an impact on flood insurance requirements will now be given the same 90-day appeal period! 48

49 Expanded Appeal Period (EAP) Process Appeals versus Comments under the new EAP process Appeals : Areas showing new or revised Base Flood Elevations (BFEs) or Zone AO depths Areas showing new or revised Special Flood Hazard Area (SFHA) boundaries (including both increases and decreases in the extent of the SFHA) Areas where there is a change in SFHA zone designation Areas showing new or revised regulatory floodway boundaries (including both increases and decreases in the extent of the regulatory floodway) 49

50 Expanded Appeal Period (EAP) Process Appeals versus Comments under the new EAP process Comments: Corporate limit revisions Road name errors and revisions Flooding source name errors and revisions Base map errors Other possible omissions or potential improvements to the mapping 50

51 MYTHS! The Expanded Appeal Period (EAP) means I have more time to submit an appeal. NO The 90- day appeal/comment period is my only chance to change FEMA s maps? NO What are my other options? Letter of Map Amendments (LOMA): A request to FEMA for removal of individual properties or structures from the SFHA Letter of Map Revisions (LOMR): A request to FEMA to modify an effective Flood Insurance Rate Map (FIRM), or Flood Boundary and Floodway Map (FBFM), or both. Results in the modification of the floodway, BFEs, or the Special Flood Hazard Area (SFHA). 51

52 Post-Preliminary Processing Summary of Map Actions (SOMA) Background Letters of Map Change (LOMCs) are legally binding changes to the map Summary of Map Actions is an assessment of all existing LOMCs compared with the new FEMA maps 52

53 Summary of Map Actions Category 1: shown on the new DFIRM panel Category 2: NOT shown on the new DFIRM panel due to scale limitations (revalidated after the new DFIRMs become effective) 53

54 Summary of Map Actions (continued) Category 3: superseded, and no longer valid, due to revised flood hazards Category 4: property owner must request this be re-determined 54

55 Post-Preliminary Processing Revalidation of Letters of Map Change (LOMCs) The Summary of Map Actions (SOMA) is used to generate a Revalidation Letter The Revalidation Letter is issued to the community Community officials are encouraged to disseminate this information. 55

56 Post-Preliminary Processing Revalidation Letter Distribution Community FEMA Regional Office State NFIP Coordinator LOMC Compendium NOT to Homeowners or Developers IS available through Map Service Center: 56

57 Post-Preliminary Processing The compliance and map adoption period begins at the date the Letter of Final Determination is sent, and ends at the effective date. During this period, community officials review, and if appropriate, revise the community s floodplain ordinances to ensure they are compliant with NFIP regulations. To avoid suspension from the NFIP, the community must adopt a compliant floodplain management ordinance. Communities should contact their State NFIP Coordinator's Office for model language and any questions regarding higher standards. Once the State has reviewed the ordinance and the community has adopted it, the ordinance must be approved by FEMA before close of business on the effective date. Do not wait until the last day to adopt your ordinance! 57

58 Points of Contact STARR Contacts Brian Caufield, R1 Coastal Lead, STARR Amol Daxikar, Project Manager, STARR FEMA Contacts Kerry Bogdan, Project Manager and Senior Engineer, FEMA Region I Kerry.Bogdan@fema.dhs.gov Marilyn Hilliard, Planning, FEMA Region I Marilyn.Hilliard@fema.dhs.gov Bob Desaulniers, Regional Insurance Specialist Robert.Desaulniers@fema.dhs.gov STARR Regional Service Center Alex Sirotek, RSC Lead, STARR Alex.Sirotek@starr-team.com National Flood Insurance Program iservice Team Tom Young, Manger Region I New England tyoung@nfip-iservice.com Maine Department of Agriculture, Conservation and Forestry, Floodplain Management Program Contacts Sue Baker, State NFIP Coordinator, Sue.Baker@maine.gov Please send all comments/protests/appeals to: Brian Caufield, CDM Smith, 50 Hampshire Street, Cambridge, MA Please copy: Kerry Bogdan, FEMA Region 1, 99 High Street, 6 th Floor, Boston, MA Alex Sirotek, STARR, 99 High Street, 3 rd Floor, Boston, MA Sue Baker, Maine Floodplain Management Program Dept. of Agriculture, Conservation & Forestry, 93 SHS, 17 Elkins Lane, Augusta, ME

59 Questions?

60 WEB LINKS Preliminary Data Effective Data (including Future Effective) msc.fema.gov Coastal Outreach Material Mitigation Action Tracker fema.starr-team.com Multi-Hazard Planning Website Mitigation Ideas National Flood Insurance Program Flood Insurance Reform Act 60