North Carolina CTS Committee Meeting #2 November 14, 2000

Today’s Agenda u Overview of CTS Program u Break u Full Committee Meeting

CTS Program Overview

North Carolina’s Flood Mapping Program u Program established to implement the Cooperating Technical State Partnership with the Federal Emergency Management Agency (FEMA), signed September 15th u Ownership and responsibility for Flood Insurance Rate Maps (FIRMs) delegated to State

Project Approach/ Implementation u Develop Statewide: l Digital Elevation Models (DEMs) l Updated base maps (DOQs or better local base) l Updated flood data l Countywide DFIRMs

Project Approach/ Implementation (cont’d) u Phase I—Eastern 6 Basins initiated this year l Preliminary FIRMs for White Oak, Tar-Pamlico, and Lumber by August 2001 l Preliminary FIRMs for Neuse, Cape Fear, and Pasquotank counties by August 2002 u Phase II—5 Basins initiated in FY l Chowan, Roanoke, Yadkin, New, Catawba u Phase III—Final 6 Basins initiated in FY l Broad, Watauga, French Broad, Little Tennessee, Savannah, Hiwassee

North Carolina River Basins—by Phase Phase I—blue Phase II—gold Phase III—green

Project Approach/ Implementation (cont.) u Design, develop, and implement dynamic IT infrastructure to analyze, maintain, archive, and disseminate flood maps and associated data for North Carolina Flood Mapping Program u Present and distribute mapping data, associated reports, and other Framework data layers to public via Internet u Final system design will be completed by March 30, 2001 u Operable system will be implemented by September 30, 2001

Funding for This Project u In August 2000, North Carolina General Assembly Approved Funding for first Six River Basins ($23 million) u FEMA has contributed $6 million, as well as in-kind professional services u North Carolina is also working with other Federal partners to secure additional funding

North Carolina CTS Flood Mapping Program NC Center for Geographic Information and Analysis NC Geodetic Survey NC Division of Emergency Management Federal Emergency Management Agency OSBPM John Dorman, Program Director/Chair CTS Committee Program Manager State Floodplain Mapping Contractor Greenhorne & O’Mara, Inc. State Floodplain Mapping Contractor Watershed Concepts, Inc. Project Manager Mapping Coordination Contractor Dewberry & Davis LLC

North Carolina’s Goals for CTS Program u Current, accurate data for sound siting and design decisions u Better floodplain management to reduce long-term flood losses u Updated data to alert at-risk property owners of the need for flood insurance u Faster, cheaper FIRM updates

North Carolina’s Goals for CTS Program (cont’d) u Digital format to allow: l More efficient, precise flood risk determinations l GIS analysis and planning l Online access 24 hours a day u DEMs will be useful for almost any engineering or planning application

Scoping Map Production The Flood Mapping Process

State FEMA Kickoff Meeting with County/Local Floodplain Administrators Mapping Needs Assessment Effective FIS & FIRM Research Evaluate Post-Floyd Data NC Scoping Database Generate Initial Scoping Package Initial Scoping Meetings Develop Draft Basin Plans Final Scoping Meetings Finalize Basin Plans Process for Scoping Six River Basins in Eastern North Carolina Prepare Delivery Orders & CTC Mapping Activity Agreements & Update CTS Mapping Agreement Analysis and Mapping Step 1 Initial Research and Community Coordination Step 2 Initial Scoping Meeting Step 3 Draft Basin Plans Step 4 Final Scoping Meeting Step 5 Final Basin Plans SCOPINGPRODUCTION Questionnaire

Community Review u Preliminary countywide DFIRMs issued to each county and its communities for review and comment u County meetings to present maps and provide opportunity for comment u Statutory 90-day appeal period

Project Schedule u By March 31, 2001 = Complete IT infrastructure design u By August 2002 = Complete acquisition of raw elevation data, develop DEMs and updated flood data, and produce digital FIRMs for the six eastern river basins (Cape Fear, Lumber, Neuse, Pasquotank, Tar-Pamlico, and White Oak)

Project Schedule u By end of State FY 2005 = Produce DEMs, updated flood data, and digital FIRMs for remaining 11 river basins u Enter “maintenance” phase

CTS Committee Overview

Purpose and Role of CTS Committee u Strategic planning for program direction and associated activities u Provide input and feedback regarding data and products u Facilitate multi-level government coordination u Provide technical and programmatic expertise and advice u Review and concur on Mapping Activity Statement Agreements

CTS Committee Member Organizations u FEMA u USGS u NASA u USACE u EPA u NOAA u HUD u NOAA u NWS u SBA u EDA u DOT u USDA Federal Agencies:

CTS Committee Member Organizations u OSBPM u NCDEM u NCGS u CGIA u Land Records Management Div. u DENR u NCDOT u NC Office of Information Technology u Dept. of Insurance State Agencies:

CTS Committee Member Organizations u General Assembly u GICC/Statewide Mapping Advisory Committee u League of Municipalities u Association of County Commissioners u North Carolina State University Other State Organizations:

CTS Committee Member Organizations u Greensboro u Asheville u Lenoir County u Wake County u New Hanover County u Charlotte/Mecklenberg County Local Government Agencies:

CTS Committee Member Organizations Technical Advisors: u NC Floodplain Managers Association u Professional Engineers of NC u NC Society of Surveyors u ASPRS, NC Chapter u URISA, NC Chapter u NC Citizens for Business and Industry u FGDC u Open GIS Consortium

Structure of CTS Committee u Chaired by John Dorman, OSBPM u Executive Committee l Day-to-day oversight of program l Chaired by John Dorman, OSBPM l Membership includes CGIA, NCGS, DEM, and FEMA l Will refer items to the overall CTS u Technical Working Groups

CTS Committee Logistics u Committee bylaws under development u Plan to meet on monthly basis initially l December 12, 2000 l January 16, 2001 l February 13, 2001 u Bi-monthly thereafter

Agreements/Tasking Process

Agreements versus Delivery Orders u Agreements l Negotiated and signed by CTS Partners l Include overall MOA, funding agreements, and Mapping Activity Statements u Delivery Orders (DOs) l State contracting with private A/E firm(s) l DOs are mechanisms to complete work agreed to by CTS Partners under the Mapping Activity Statements

Memorandum of Agreement Funding Agreement No. 1 Mapping Activity Statement A MAS B Funding Agreement No. X MAS C MAS D MAS E MAS F MAS Hierarchy of Agreements

Memorandum of Agreement u Establishes formal overall partnership between State and Federal and local Partners u State, FEMA, and other Federal Partners will collaborate on flood hazard identification and post flood disaster hazard verification activities u Establishes CTS Committee u Signed by State and all Partners

Funding Agreements u Written under “umbrella” of overall Memorandum of Agreement u Summarizes available funding sources and amounts for specific mapping activities u Ties funding to specific Mapping Activity Statements u Signed by all partners contributing funding to the relevant activities

Mapping Activity Statement u State and Partners will develop Mapping Activity Statements for specific activities u References overarching Funding Agreement u Signed by State and all Partners contributing products, services, funding, and/or technical support to the activity

Mapping Activity Statement u Also Specifies: l Scope l Period of Performance l Standards l Schedule l Products l Certification requirements l FEMA Technical Assistance and Resources l QA/QC Process l Subcontractors l Reporting l Point of Contact

Mapping Activity Statements Currently Being Developed AProject Scoping for Six Eastern River Basins* BInformation Management System CDigital Base Map for Six Eastern River Basins* DDigital Elevation Data Development for Six Eastern River Basins* EUpdated Flood Hazard Data and Digital FIRM Production for Six Eastern River Basins* *Future Mapping Activity Statements will be developed for the remaining Basins in the State

Mapping Activity Statements Currently Being Developed (cont.) FTechnology and Data Standards GReal-Time Flood Forecasting and Inundation Mapping HInter-Agency Coordination **Will be used to execute separate MASs for specific flooding disasters **Post-Flood Hazard Verification (Template)

Overview of CTS Program Questions

North Carolina CTS Committee Meeting #2 November 14, 2000

Today’s Agenda u Contractor—Update & Introduction u Status Updates l Scoping Meetings l Mapping Activity Statements l Delivery Orders—LIDAR/DEM and IT Infrastructure Analysis/Design u Committee Bylaws

Today’s Agenda (cont’d) u Accuracy Standards for LIDAR Data Development u Strategy for Developing Updated Flood Theme u Issues for Discussion at Committee Meeting #3 u Action Items/Wrap Up

Contractor - Update & Introduction u Greenhorne & O’Mara u Watershed Concepts u Negotiating Business Plans l Issue Contract Amendment by 11/30/00 u Delivery Orders for DEM Development l Issued RFP on 11/8/00 l Proposals Due on 12/4/00 l Issue final DO on 12/11/00

Basin Study Schedule and Contractor Assignments

Scoping Meetings Status Updates:

Scoping Approach u Approach for Scoping Six River Basins in Eastern North Carolina: l Step 1—Initial Research and Community Coordination l Step 2—Initial Scoping Meeting l Step 3—Draft Basin Plans l Step 4—Final Scoping Meeting l Step 5—Final Basin Plans

Step 2—Initial Scoping Meeting u Currently conducting Initial Scoping Meetings: l County meetings to present results of Step 1 research l To date, meetings have taken place in following counties: u Franklin, Nash, Onslow, Jones, Carteret, Craven, Pitt, Beaufort, Edgecombe, Halifax, Wilson, Warren, Vance, Scotland, Richmond, Montgomery

Schedule for Completing Basin Plans Basin White Oak Tar-Pamlico Lumber Neuse Cape Fear Pasquotank Date 12/12/00 1/2/01 12/12/00 1/19/01 1/17/01 1/16/01

Mapping Activity Statements Status Updates:

Mapping Activity Statements Currently Being Developed AProject Scoping for Six Eastern River Basins* BInformation Management System CDigital Base Map for Six Eastern River Basins* DDigital Elevation Data Development for Six Eastern River Basins* EUpdated Flood Hazard Data and Digital FIRM Production for Six Eastern River Basins* *Future Mapping Activity Statements will be developed for the remaining Basins in the State

Mapping Activity Statements A — E u Copies of Draft Agreements under the “Mapping Activity Statements” Tab for Meeting 1 in your notebook u Provide comments by November 21, 2000, to John Dorman u Follow-up meetings will be scheduled, if necessary

Delivery Orders for LIDAR/DEM and IT Infrastructure Analysis/Design Status Updates:

Delivery Orders (DOs) u LIDAR/DEM Requests for Proposal (RFPs) were issued on November 9, 2000 u IT Infrastructure Analysis/Design RFPs will be issued shortly

Committee Bylaws

u Draft in your packet u Main Points: l Article I.Name l Article II.Purpose l Article III.Objectives l Article IV.Committee Membership l Article V.Structure l Article VI.Meetings l Article VII.Obligations and Expenses

Committee Bylaws u Schedule l Provide comments by December 5, 2000 l Finalize and adopt at December 12, 2000

Accuracy Standards for LIDAR Data Development

DEMs u Acquire digital topographic data using airborne LIDAR u Vertical RMSE of 20 cm l ’ accuracy l “Equivalent” to 2.2’ contour interval u Will be independently evaluated by NCGS in vegetation categories representative of floodplains u NAVD 88 Orthometric heights

DEMs (cont’d) u Generation of TIN (ESRI TIN format) and selected breaklines (ESRI point, line, and/or polygon coverage) from LIDAR and image data (image data may be existing or acquired separately) u 5m x 5m post spacing, State Plane and UTM, meters l Getting pricing options for 6 m x 6m spacing

DEMs (cont’d) u Multiple file formats for H&H modeling and other applications using ARC/INFO and other GIS software u In addition to automated processing, manual post-processing of LIDAR, wall-to-wall or only for floodplain areas

Strategy for Developing Updated Flood Theme

Flood Theme u Conduct Scoping u Select Technical Methods u Establish Priorities

Select Technical Methods u There are 5 options for addressing each flooding source segment: 1.Approximate study—Use DEMs (without bathymetry or structure opening data) to complete approximate H&H analyses and floodplain mapping 2.Redelineation—Use DEMs and effective FIS profile to redelineate SFHAs

Select Technical Methods (cont’d) 3.Detailed Study (Riverine)—Use DEMs (with bathymetry and structure opening data) to complete detailed H&H analyses and floodplain mapping 4.Detailed Study (Coastal)—Use DEMs (with bathymetry) to conduct detailed erosion, wave height, and wave runup analyses and V Zone mapping

Select Technical Methods (cont’d) 5.Use Effective Information—Digitize effective FIS and FIRM data “as is;” no new analyses or mapping will be prepared

Select Technical Methods (cont’d) u Selection of most appropriate technical method is based on: l Adequacy of effective information l Zone designation on effective FIRM l Existing or anticipated development in/near floodplain

Establish Priority Levels u Establish priority level based on: l Level of development l Age of effective analysis/maps l Mapping impacts l Historical flooding information l Community mitigation planning

Strategies for Developing New Flood Theme u Wall-to-Wall u Maximum detailed u Study all coastal areas in detail u Restudy all approximate areas using approximate methods u Study all unstudied areas using approximate methods u Blend of above approaches

Issues for Discussion at CTS Committee Meeting #3

Action Items/Wrap Up