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North Carolina Floodplain Mapping Program Becoming a Cooperating Technical State

North Carolina Floodplain Mapping Program Becoming a Cooperating Technical State. Topics for Today. Background Overview of NC Floodplain Mapping Program Overview of the Assessment / Scoping Process for the six (6) initial River Basins Questions and Answers Wrap Up.

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North Carolina Floodplain Mapping Program Becoming a Cooperating Technical State

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  1. North Carolina Floodplain Mapping Program Becoming a Cooperating Technical State

  2. Topics for Today • Background • Overview of NC Floodplain Mapping Program • Overview of the Assessment / Scoping Process for the six (6) initial River Basins • Questions and Answers • Wrap Up

  3. Needs / Limitations Identified • Hurricane Floyd revealed data and map limitations • FEMA program – North Carolina receives on average one updated Flood Study for one county per year • Only 10-25% of flood hazards in county are evaluated • ~ 55% of NC FIRMs are at least 10 years old

  4. Needs / Limitations Identified (continued) • ~ 75% of NC FIRMs are at least 5 years old • Many up-to-date maps are using 15-20 year old studies • Many counties and communities have indicated that they do not have resources to take on responsibility

  5. FEMA Flood Insurance Rate Maps in North Carolina Mapped Areas • 100 Counties • 326 Municipalities Not Mapped • 214 Municipalities

  6. In response to these defined limitations, North Carolina has developed two strategies: • Establishment of a statewide program to acquire, process and disseminate current, accurate, and detailed elevation data, flood studies, and maps. • Establishment of North Carolina as a Cooperating Technical State (CTS) with FEMA.

  7. Program Deliverables • Up-to-date maps (Flood Insurance Rate Maps) being provided to state and local officials (Study Basin by Basin) • Up-to-date elevation data being provided to state and local officials (2 Feet or Less Vertical Accuracy /95%) • Reduction of time needed for reviewing and approving proposed changes to FIRM maps (~6-7 months) • Notification and dissemination of information about new and revised maps being provided to local governments, insurance agents, and citizens

  8. Program Deliverables(continued) • On-going program for updating and maintaining FIRMs • Post-event mitigation activities being better equipped and supported with timely updates to flood risk maps • Interoperable GIS • Dissemination of data and maps via the Internet • Next generation information architecture • E-gov • Develop real time prediction of flooding

  9. Project Schedule • 5 year statewide program • 6 river basins completed by August 2002 • 3 river basins before September 2001 • State approval of program August 2000

  10. Program Management • Office of State Budget, Planning and Management • Center for Geographic Information & Analysis • Geodetic Survey • NC Division of Emergency Management • Federal Emergency Management Agency

  11. Estimated Project Costs

  12. Overview of the Assessment / Scoping Process for the first six River Basins

  13. What Is Scoping? • Researching/inventorying available elevation, flood hazard, and digital base map data • Assessing adequacy of existing flood hazard data • Receiving input from counties and communities • Determining best method to update flood data

  14. What Is Scoping? (continued) • Identifying data needs (DEMs, cross sections, base maps, etc.) • Determining proposed scales and paneling scheme for DFIRM production • Establishing priority levels • Developing schedule

  15. How Will Scoping Be Accomplished? • North Carolina will work closely with FEMA and FEMA’s Mapping Coordination Contractor, Dewberry & Davis LLC • Process will involve 5 steps

  16. SCOPING PRODUCTION Step 1 Step 2 Step 3 Step 4 Step 5 Initial Research and Community Coordination Initial Scoping Meeting Draft Basin Plans Final Scoping Meeting Final Basin Plans State KickoffMeeting with County/Local Floodplain Administrators Questionnaire State Prepare Delivery Orders& CTC Mapping Activity Agreements & Update CTS Mapping Agreement Develop Draft Basin Plans MappingNeeds Assessment Generate Initial Scoping Package NCScoping Database InitialScoping Meetings Final Scoping Meetings Finalize BasinPlans Analysis and Mapping FEMA EffectiveFIS & FIRM Research FEMA Process for Scoping Six River Basinsin Eastern North Carolina EvaluatePost-FloydData

  17. Step 1 – Initial Research and Community Coordination • Today’s kickoff meeting—community questionnaire • Complete Assessment of Community Mapping Needs (CTC Agreement) • FEMA will research FIS/FIRM and other data for each community • With FEMA, evaluate post-Hurricane Floyd data

  18. Community Questionnaire • Your response is very important! • Information you provide will assist the State in developing Statewide inventory of flood mapping needs • Have questions or need help completing the questionnaire? • Call (877) 336-2627 (toll free)

  19. Community Questionnaire (continued) • Please send the completed assessment form (mail, fax, or e-mail) to Ken Taylor • Submission information is contained in the questionnaire • Digital version of questionnaire available (in MS Excel format) • E-mail request to map.specialist@dewberry.com • Please submit by September 29, 2000

  20. Step 2 – Initial Scoping Meetings • Meetings in each county • Present results of Step 1 research • Ask for community input • Meet individually with county and each community’s representatives • Each county and community will be contacted to schedule the meeting

  21. Step 3 – Draft Basin Plans • Synthesize research and community input • Draft basin plans will include: • Comprehensive lists of flooding sources to be updated • Counties for which DFIRMs will be produced • Overall schedule

  22. Step 4 – Final Scoping Meeting • Meetings held in each basin • Two or three separate meetings may be held in larger basins • All impacted counties and communities will be invited • Present draft basin-wide plans • Provide final opportunity for input

  23. Step 5 – Final Basin Plans • Final basin plans will be used to: • Complete CTS Task Agreement with FEMA • Develop Delivery Orders for our mapping contractor • Develop CTC Mapping Activity Agreements with any counties or local communities • Production phase will then begin

  24. September October November December January February Basin White Oak3 countiespartially or entirelywithin basinTar Pamlico12 countiespartially or entirelywithin basin Lumber7 countiespartially or entirelywithin basinNeuse16 countiespartially or entirelywithin basin Cape Fear15 countiespartially or entirelywithin basinPasquotank8 countiespartially or entirelywithin basin 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5

  25. What Happens After Scoping? • Engineering analyses and mapping completed on basin-wide basis • Results “carved” into countywide DFIRMs • Work conducted by State contractor • Preliminary DFIRMs for three basins by August 2001 • Preliminary DFIRMs for other three basins by August 2002

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