North Carolina CTS Committee Meeting #2 November 14, 2000

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:



OSBPM NCDEM NCGS CGIA Land Records

Management Div.

DENR

NCDOT NC Office of

Information Technology

Dept. of Insurance

State Agencies:



General Assembly GICC/Statewide Mapping Advisory

Committee League of Municipalities Association of County

Commissioners North Carolina State University

Other State Organizations:



Greensboro Asheville Lenoir County Wake County New Hanover County Charlotte/Mecklenberg County

Local Government Agencies:


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


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



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


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


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


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


5. Use Effective Information—Digitize effective FIS and FIRM data “as is;” no new analyses or mapping will be prepared


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

Documents

North Carolina CTS Committee Meeting #2 November 14, 2000