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Scoping theNorth Carolina Cooperating
Technical State Project
Ed Curtis, P.E., CFM, North Carolina Division of Emergency
Management
Jerry Sparks, P.E., CFMDewberry & Davis LLC
Background
North Carolina CTS Flood Mapping Program
Hurricane Floyd in 1999 revealed limitations of outdated FIRMs in NC
NC General Assembly committed$25 million to flood mapping
CTS partnership between FEMA, State, and 16 other Federal Agencies
State ownership and responsibilityfor FIRMs
Project Components
High-resolution topographic data and accurate DEMs
Engineering studies of flood hazards
Countywide digital FIRMs Online Information
Management System
Project Benefits
Current, accurate data for sound siting and design decisions
Use of updated data for floodplain management will reduce long-term flood losses
Updated data will alert at-risk property owners of the need for flood insurance
Faster, cheaper FIRM updates
Project Benefits (Continued)
Digital format allows for more efficient, precise flood risk determinations
Digital format allows for use with GIS for analysis and planning
Digital Information System allows for online access 24 hours a day
DEMs will be useful for almost any engineering or planning applications
Eastern Six River Basins
NC General Assembly directed the State to first address the eastern six basins(Phase I)
Basins most affected by Hurricane Floyd Approximately half of the State
> 50 counties and >330 municipalities(in whole or in part)
Encompass ~ 21,200 linear milesof streams and rivers
North Carolina River Basins—by Phase
Phase I—bluePhase II—gold
Phase III—green
Scoping the Six EasternRiver Basins
Scoping
Map Productio
n
The Flood Mapping Process
What Is Scoping?
Researching/inventorying available elevation, flood hazard, and digital base map data
Assessing adequacy existing flood hazard data
Outreach to, and input from, counties and communities
Identifying data to be developed or acquired Determining proposed scales, paneling
scheme, and format for DFIRM production Developing schedule
Scoping the Six Eastern River Basins
Comprehensive scoping process Tailored FEMA’s scoping process to
meet the needs of North Carolina’s basin-wide approach and accelerated production schedule
NCDEM worked closely with FEMAand FEMA’s Map CoordinationContractor, Dewberry & Davis LLC (D&D)
Process involved 5 steps
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
Step 1: Initial Research and Community Coordination
Kick-off meeting with county and local floodplain administrators — August 31, 2000
Objectives: Overview State’s CTS Agreement with
FEMA and the Statewide Flood Mapping Program
Inform about process that will be followed
Encourage active participation Community questionnaire distributed
Step 1: Initial Research and Community Coordination
(Continued)
State completed research of community mapping needs
September 1999, CTP “Assessment of Community Mapping Needs” agreementwith FEMA
FEMA and D&D researched FEMA Flood Mapping Archives and FEMA’s Mapping Needs Update Support System (MNUSS) database
Step 1: Initial Research and Community Coordination
(Continued)
State and FEMA evaluatedpost-Hurricane Floyd data
Identified areas where flooding elevations and inundation limits did not match effective flood hazard data
Step 1: Initial Research and Community Coordination
(Continued)
State and FEMA conducted detailed review of effective flood data for counties along the open coast and inland coastal areas
State met with county and community GIS staff to inventory local GIS data to identify potential base map data resources
Step 1: Initial Research and Community Coordination
(Continued)
Results of initial research and community questionnaire responses entered into a GIS-enabled scoping database created especially for North Carolina project
Database used to generate “Initial Scoping Packages” for each community
Initial Scoping Packages used to conduct Initial Scoping Meetings (Step 2)
Scoping Database
Step 2: Initial Scoping Meetings
Meetings in each county Presented results of initial 1 research Reviewed Initial Scoping Package with
each community’s representatives Asked for community input on
proposed study priorities andanalysis methods
Identified available local data
Step 3: Draft Basin Plans
Synthesized research and community input
Draft basin plans include: Comprehensive lists of flooding
sources to be updated and methods to be used
Counties for which DFIRMs will be produced
Overall schedule
Step 4: Final Scoping Meeting
Draft Basin Plan sent to affected counties and communities
Meetings held in each county Present Draft Basin Plans Provide final opportunity for
input Individual meetings scheduled
with community representatives
Step 5: Final Basin Plans
Draft Basin Plans revised to produce Final Basin Plans
Final Basin Plans state how the Draft Basin Plan was revisedand why
Step 5: Final Basin Plans (Continued)
Final basin plans used to: Complete CTS Task Agreement
with FEMA Develop Delivery Orders for
State’s mapping contractor Develop CTP Mapping Activity
Agreements with any countiesor local communities
Scoping Schedule
Scoping theNorth Carolina Cooperating
Technical State Project
QUESTIONS? ? ? ? ?