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North Carolina CTS North Carolina CTS Committee Meeting #2Committee Meeting #2
November 14, 2000
Today’s AgendaToday’s Agenda
Overview of CTS Program Break Full Committee Meeting
CTS Program OverviewCTS Program Overview
North Carolina’s North Carolina’s Flood Mapping Flood Mapping
ProgramProgram
Program established to implement the Cooperating Technical State Partnership with the Federal Emergency Management Agency (FEMA), signed September 15th
Ownership and responsibility for Flood Insurance Rate Maps (FIRMs) delegated to State
Project Approach/ Project Approach/ ImplementationImplementation
Develop Statewide: Digital Elevation Models (DEMs)
Updated base maps (DOQs or betterlocal base)
Updated flood data
Countywide DFIRMs
Project Approach/ Project Approach/ Implementation Implementation
(cont’d)(cont’d) Phase I—Eastern 6 Basins initiated this year
Preliminary FIRMs for White Oak, Tar-Pamlico, and Lumber by August 2001
Preliminary FIRMs for Neuse, Cape Fear, and Pasquotank counties by August 2002
Phase II—5 Basins initiated in FY 01-02 Chowan, Roanoke, Yadkin, New, Catawba
Phase III—Final 6 Basins initiated in FY 02-03 Broad, Watauga, French Broad, Little
Tennessee, Savannah, Hiwassee
North Carolina River North Carolina River Basins—by PhaseBasins—by Phase
Phase I—bluePhase II—gold
Phase III—green
Project Approach/ Project Approach/ Implementation Implementation
(cont.)(cont.) Design, develop, and implement dynamic IT
infrastructure to analyze, maintain, archive, and disseminate flood maps and associated data for North Carolina Flood Mapping Program
Present and distribute mapping data, associated reports, and other Framework data layers to public via Internet
Final system design will be completed byMarch 30, 2001
Operable system will be implemented bySeptember 30, 2001
Funding for This Funding for This Project Project
In August 2000, North Carolina General Assembly Approved Funding for first Six River Basins ($23 million)
FEMA has contributed $6 million, as well as in-kind professional services
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
NCGeodetic Survey
NC Division of Emergency
Management
Federal Emergency Management
Agency
OSBPM
John Dorman,Program
Director/Chair
CTSCommittee
Program Manager
State Floodplain Mapping
ContractorGreenhorne & O’Mara, Inc.
State Floodplain Mapping
ContractorWatershed
Concepts, Inc.
ProjectManager
Mapping Coordinatio
n Contractor
Dewberry & Davis LLC
North Carolina’s North Carolina’s Goals Goals
for CTS Programfor CTS Program Current, accurate data for sound
siting and design decisions Better floodplain management to
reduce long-term flood losses Updated data to alert at-risk
property owners of the need for flood insurance
Faster, cheaper FIRM updates
North Carolina’s Goals North Carolina’s Goals for CTS Program for CTS Program
(cont’d)(cont’d) Digital format to allow:
More efficient, precise flood risk determinations
GIS analysis and planning Online access 24 hours a day
DEMs will be useful for almost any engineering or planning application
Scoping
Map Productio
n
The Flood Mapping The Flood Mapping Process Process
State
State
FEMA
FEMA
KickoffMeeting with County/Local
Floodplain Administrators
MappingNeeds
Assessment
EffectiveFIS & FIRM Research
EvaluatePost-Floyd
Data
NCScoping
Database
Generate Initial
Scoping Package
InitialScoping Meetings
Develop Draft Basin Plans
Final Scoping Meetings
Finalize BasinPlans
Process for Scoping Six River Basinsin 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
SCOPING PRODUCTION
Questionnaire
Community ReviewCommunity Review
Preliminary countywide DFIRMs issued to each county and its communities for review and comment
County meetings to present maps and provide opportunity for comment
Statutory 90-day appeal period
Project ScheduleProject Schedule
By March 31, 2001 = Complete IT infrastructure design
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, andWhite Oak)
Project ScheduleProject Schedule
By end of State FY 2005 = Produce DEMs, updated flood data, and digital FIRMs for remaining 11 river basins
Enter “maintenance” phase
CTS Committee OverviewCTS Committee Overview
Purpose and Role of Purpose and Role of CTS CommitteeCTS Committee
Strategic planning for program direction and associated activities
Provide input and feedback regarding data and products
Facilitate multi-level government coordination
Provide technical and programmatic expertise and advice
Review and concur on Mapping Activity Statement Agreements
CTS Committee CTS Committee Member Member
OrganizationsOrganizations
FEMA USGS NASA USACE EPA NOAA HUD
NOAA NWS SBA EDA DOT USDA
Federal Agencies:
CTS Committee CTS Committee Member Member
OrganizationsOrganizations
OSBPM NCDEM NCGS CGIA Land Records
Management Div.
DENR
NCDOT NC Office of
Information Technology
Dept. of Insurance
State Agencies:
CTS Committee CTS Committee Member Member
OrganizationsOrganizations
General Assembly GICC/Statewide Mapping Advisory
Committee League of Municipalities Association of County
Commissioners North Carolina State University
Other State Organizations:
CTS Committee CTS Committee Member Member
OrganizationsOrganizations
Greensboro Asheville Lenoir County Wake County New Hanover County Charlotte/Mecklenberg County
Local Government Agencies:
CTS Committee CTS Committee Member Member
OrganizationsOrganizationsTechnical Advisors: NC Floodplain Managers Association Professional Engineers of NC NC Society of Surveyors ASPRS, NC Chapter URISA, NC Chapter NC Citizens for Business and Industry FGDC Open GIS Consortium
Structure of CTS Structure of CTS CommitteeCommittee
Chaired by John Dorman, OSBPM Executive Committee
Day-to-day oversight of program Chaired by John Dorman, OSBPM Membership includes CGIA, NCGS, DEM,
and FEMA Will refer items to the overall CTS
Technical Working Groups
CTS Committee CTS Committee LogisticsLogistics
Committee bylaws under development
Plan to meet on monthly basis initially December 12, 2000 January 16, 2001 February 13, 2001
Bi-monthly thereafter
Agreements/Tasking Agreements/Tasking ProcessProcess
Agreements versus Agreements versus Delivery OrdersDelivery Orders
Agreements Negotiated and signed by CTS Partners Include overall MOA, funding agreements,
and Mapping Activity Statements Delivery Orders (DOs)
State contracting with private A/E firm(s) DOs are mechanisms to complete work
agreed to by CTS Partners under the Mapping Activity Statements
Memorandum of Agreement
FundingAgreement
No. 1
MappingActivity
StatementA
MASB
FundingAgreement
No. X
MASC
MASD
MASE
MASF
MAS MASMAS
Hierarchy of Hierarchy of AgreementsAgreements
Memorandum of Memorandum of AgreementAgreement
Establishes formal overall partnership between State and Federal and local Partners
State, FEMA, and other Federal Partners will collaborate on flood hazard identification and post flood disaster hazard verification activities
Establishes CTS Committee Signed by State and all Partners
Funding AgreementsFunding Agreements
Written under “umbrella” of overall Memorandum of Agreement
Summarizes available funding sources and amounts for specific mapping activities
Ties funding to specific Mapping Activity Statements
Signed by all partners contributing funding to the relevant activities
Mapping Activity Mapping Activity StatementStatement
State and Partners will develop Mapping Activity Statements for specific activities
References overarching Funding Agreement
Signed by State and all Partners contributing products, services, funding, and/or technical support to the activity
Mapping Activity Mapping Activity StatementStatement
Also Specifies: Scope Period of
Performance Standards Schedule Products Certification
requirements
FEMA Technical Assistance and Resources
QA/QC Process Subcontractors Reporting Point of Contact
Mapping Activity Mapping Activity StatementsStatements
Currently Being DevelopedCurrently Being Developed
A Project Scoping for Six Eastern River Basins*
B Information Management System
C Digital Base Map for Six Eastern River Basins*D Digital Elevation Data Development for Six Eastern River Basins*
E Updated 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 Mapping Activity StatementsStatements
Currently Being Developed Currently Being Developed (cont.)(cont.)
F Technology and Data Standards
G Real-Time Flood Forecasting and Inundation Mapping
H Inter-Agency Coordination
**Will be used to execute separate MASs for specific flooding disasters
** Post-Flood Hazard Verification (Template)
Overview of CTS ProgramOverview of CTS Program
Questions
North Carolina CTS North Carolina CTS Committee Meeting #2Committee Meeting #2
November 14, 2000
Today’s AgendaToday’s Agenda
Contractor—Update & Introduction Status Updates
Scoping Meetings Mapping Activity Statements Delivery Orders—LIDAR/DEM and IT
Infrastructure Analysis/Design Committee Bylaws
Today’s Agenda Today’s Agenda (cont’d)(cont’d)
Accuracy Standards for LIDAR Data Development
Strategy for Developing Updated Flood Theme
Issues for Discussion at Committee Meeting #3
Action Items/Wrap Up
Contractor - Update Contractor - Update & Introduction& Introduction
Greenhorne & O’Mara Watershed Concepts Negotiating Business Plans
Issue Contract Amendment by 11/30/00 Delivery Orders for DEM Development
Issued RFP on 11/8/00 Proposals Due on 12/4/00 Issue final DO on 12/11/00
Basin Study Schedule Basin Study Schedule and Contractor and Contractor AssignmentsAssignments
Target Completion
DateDEM Development Modeling and Mapping
July 2001 Watershed Concepts Watershed Concepts Part - I July 2001 Watershed Concepts Watershed Concepts Part - II January 2002 Watershed Concepts Watershed Concepts
July 2001 Greenhorne & O'Mara Greenhorne & O'Mara Part - I July 2001 Part - II January 2002 Part - III July 2002 Part - I July 2001 Part - II January 2002 Part - III July 2002
July 2002 Watershed Concepts Watershed Concepts
Watershed Concepts Watershed Concepts
Cape Fear Greenhorne & O'Mara Greenhorne & O'Mara
Pasquotank
Basin
White Oak
Lumber
Neuse
Tar Pamlico
Scoping Meetings
Status Updates:Status Updates:
Scoping ApproachScoping Approach
Approach for Scoping Six River Basins in Eastern North Carolina: 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
Step 2—InitialStep 2—InitialScoping MeetingScoping Meeting
Currently conducting Initial Scoping Meetings: County meetings to present results of
Step 1 research To date, meetings have taken place in
following counties: Franklin, Nash, Onslow, Jones, Carteret,
Craven, Pitt, Beaufort, Edgecombe, Halifax, Wilson, Warren, Vance, Scotland, Richmond, Montgomery
Schedule for Schedule for Completing Basin Completing Basin
PlansPlansBasin
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:Status Updates:
Mapping Activity Mapping Activity StatementsStatements
Currently Being DevelopedCurrently Being Developed
A Project Scoping for Six Eastern River Basins*
B Information Management System
C Digital Base Map for Six Eastern River Basins*D Digital Elevation Data Development for Six Eastern River Basins*
E Updated 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 Mapping Activity Statements A — EStatements A — E
Copies of Draft Agreements under the “Mapping Activity Statements” Tab for Meeting 1 in your notebook
Provide comments by November 21, 2000, to John Dorman ([email protected])
Follow-up meetings will bescheduled, if necessary
Delivery Orders forLIDAR/DEM and IT Infrastructure Analysis/Design
Status Updates:Status Updates:
Delivery Orders Delivery Orders (DOs)(DOs)
LIDAR/DEM Requests forProposal (RFPs) were issued on November 9, 2000
IT Infrastructure Analysis/DesignRFPs will be issued shortly
Committee BylawsCommittee Bylaws
Committee BylawsCommittee Bylaws
Draft in your packet Main Points:
Article I. Name Article II. Purpose Article III. Objectives Article IV. Committee Membership Article V. Structure Article VI. Meetings Article VII. Obligations and Expenses
Committee BylawsCommittee Bylaws
Schedule Provide comments by December 5,
2000 Finalize and adopt at December 12,
2000
Accuracy Standards for Accuracy Standards for LIDAR Data DevelopmentLIDAR Data Development
DEMsDEMs
Acquire digital topographic data using airborne LIDAR
Vertical RMSE of 20 cm 1.2861’ accuracy “Equivalent” to 2.2’ contour interval
Will be independently evaluated by NCGS in vegetation categories representative of floodplains
NAVD 88 Orthometric heights
DEMs (cont’d)DEMs (cont’d)
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)
5m x 5m post spacing, State Plane and UTM, meters Getting pricing options for 6 m x 6m
spacing
DEMs (cont’d)DEMs (cont’d)
Multiple file formats for H&H modeling and other applications using ARC/INFO and other GIS software
In addition to automated processing, manual post-processing of LIDAR,wall-to-wall or only for floodplain areas
Strategy for Developing Strategy for Developing Updated Flood ThemeUpdated Flood Theme
Flood ThemeFlood Theme
Conduct Scoping Select Technical Methods Establish Priorities
Select Technical Select Technical MethodsMethods
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 Select Technical Methods (cont’d)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 Select Technical Methods (cont’d)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 Select Technical Methods (cont’d)Methods (cont’d)
Selection of most appropriate technical method is based on: Adequacy of effective information Zone designation on effective FIRM Existing or anticipated development
in/near floodplain
Establish Priority Establish Priority LevelsLevels
Establish priority level based on: Level of development Age of effective analysis/maps Mapping impacts Historical flooding information Community mitigation planning
Strategies for Strategies for Developing New Flood Developing New Flood
ThemeTheme Wall-to-Wall Maximum detailed Study all coastal areas in detail Restudy all approximate areas using
approximate methods Study all unstudied areas using
approximate methods Blend of above approaches
Issues for Discussion at Issues for Discussion at CTS CTS
Committee Meeting #3Committee Meeting #3
Action Items/Wrap UpAction Items/Wrap Up