FEMA Flood Insurance Study

1
FEMAFlood Insurance Study

• XX County
• Scoping Meeting

DATE
2
FEMA Contact Information

• James Orwat, PE
• james.orwat_at_dhs.gov
• FEMA Region VI
• 800 North Loop 288
• Denton, TX 76201-3698
• [phone] Office
• [phone] Fax

3
Meeting Agenda

• Introduction
• Purpose of Matagorda County Re-Study
• NFIP Overview
• FEMA Map Modernization
• FEMA Compliance
• National Service Provider (NSP)
• Scoping Activities
• Re-Study Process
• Community and FEMA Agreement Discussion (MOAs)

4
Purpose of the Matagorda County Re-Study

• Update Flood Insurance Rate Maps (FIRMS) and
  Flood Data
• Produce GIS-based Digital FIRMs
• Provide Guidance For
• Development in Flood Prone Areas
• Emergency Response
• Planning and Design throughout the County

5
NFIP Overview

• What Is It?
• Participating Communities Can Insure Against
  Flood Losses

6
NFIP Overview

• Issue Permits
• Ensure that New Construction is Elevated to the
  Base Flood Elevation
• Prohibit Construction Within the Floodways
• Adopt the Flood Insurance Rate Map by the
  Community and Incorporate into Ordinance

7
FEMA Map Modernization

• Nationwide
• 5-Year Plan
• 1 Billion Budget

8
Flood Map Modernization Vision

• Network the nation using the MIP
• Leverage the use of Federal, State, Local
  Resources
• Reduce processing time and costs for map updates
• Increase partners, stakeholders, and users
  understanding of flood hazards and risks

9
FEMA Compliance

• Mapping and Ordinance Adoption Process
• Community officials awareness of study process
• Meetings
• Final adoption and/or revision of Floodplain
  Management Ordinance

10
Compliance Contact

• FEMA Compliance Denton, Texas
• Lonnie Ward, CFM [phone]
• Texas State NFIP Coordinator TCEQ/Austin, Texas
• Mike Howard, CFM [phone]
• NFIP Representatives (Flood Insurance/agents
  lenders) - Houston, Texas
• Dorothy Martinez, CFM [phone]

11
RMC Contact Information

• Steve Altman, PE, CFM
• Steve.Altman_at_mapmodteam.com
• Michael Baker Jr., Inc.
• 101 S. Locust Street, Suite 300
• Denton, Texas 76201
• [phone] Office
• [phone] Fax

12
National Service Provider (NSP)

• Michael Baker Jr., Inc.
• Overall Program Management
• Numerous partners (IBM, etc)

13
Regional Management Center (RMC)

• Michael Baker Jr., Inc. in Denton, TX
• Support to the FEMA Region
• Project Management
• Map Needs Assessment
• Compliance
• Outreach / Public Awareness

14
Halff Associates, Inc. Study Contractor

• Michael Moya, PE, CFM
• mmoya_at_halff.com
• Halff Associates, Inc.
• 4000 Fossil Creek Blvd.
• Fort Worth, Texas 76137
• [phone] Office
• [phone] Fax

15
Map Modernization 1834 Style(Pre-FIRM)
16
Map Modernization 2004 Style DFIRM Product
17
Overall Coastal Scoping Study
18
Scoping Activities
19
Pertinent Data on Matagorda County

• Area 1,612.19 Sq. Mi.
• Density 24 Persons/Sq. Mi.

20
Pertinent Data on XX County

• 45 Existing FIRMs (Printed)
• Scales 1500, 800, 1000, and 2000
• Average Panel Age 15 Years
• FIS FIRM Avg Technical Age 17 Years
• Flood Insurance Policies in Place 2,939
• LOMCs 4
• Claims 1,644 (10,542,196)
• Repetitive Loss Properties 148

21
What Are We Scoping?

• Information Search
• Coordination / Outreach
• Assess Community Mapping Needs

22
XX County Re-Study

• Scoping
• 31 miles of Detail Study (Zone AE)
• 109 miles of Approximate Study (Zone A)
• 64 miles of Zone V and CBRA
• 45 Existing FIRMs

23
The Study Process

• Information Search
• Base Map and Terrain Data Acquisition
• Field Survey
• Hydrology
• Hydraulics
• Mapping
• Reporting (TSDN)
• Coordination /Outreach

24
Base Mapping

• Local Provided Planimetrics
• USDA National Agrigultural Imagery Program (NAIP)
• USGS Contours Supplemented with Local Data

Local High Resolution Data
USGS 7.5 Minute Quads
USGS DOQQ
25
Terrain Information

• Terrain Map Sources
• Local Data City of Bay City
• USGS Contour Maps 30 M DEMs
• 2006 LiDAR

USGS 7.5 Minute Quads
Local High Resolution Data
USGS 30M DEM
26
DATUM NAVD 88 / NAD 83

• The majority of existing FIRM panels vertical
  datums
• National Geodetic Vertical Datum (NGVD) 29
• Local Datum
• New DFIRM Panel vertical datum will be
  standardized to (North America Vertical Datum)
  NAVD 88 and NAD 83 (Horizontal

27
Possible Mapping Products Available

• New Detailed Study
• Coastal Analysis
• Enhanced Approximate Study
• Redelineation of Existing Detailed Study
• Approximate Study (Zone A Refinement)
• Digital Conversion

28
New Detailed Study

• Field Survey
• New Topo/Orthophoto
• Detailed Hydrologic and Hydraulic Modeling
• Floodway Computations
• Flood Profiles
• Calibrated to Historical Events
• Most Expensive Type of Study

29
Sample of Detail Study Stream

• Sample Detail Study Stream
• Cross-Sections, BFEs, Floodways

30
Coastal Analysis
31
Enhanced Approximate Study

• Limited Detailed Study
• No (or) Limited Structure Surveys
• No (or) Limited Floodways
• No (or) Limited Profiles
• Advantages
• Cost is Much Less Than Detailed Study
• More Streams Can Be Studied

32
Redelineation Streams

• Applies to Existing Detailed Study Streams (Zone
  AE)
• Vertical Datum Update from 1929 to 1988
• Flood Boundaries Mapped to the Best Available
  Topography

33
Zone AE Redelineation
34
Zone AE Redelineation
35
Approximate Study

• Zone A Refinement
• Automated HH Procedures
• Boundaries Mapped to Best Analyze Topography

36
Sample of Existing Zone A
100-yr Boundary
37
Zone A Refinement
38
Zone A Refinement
39
Digital Conversion

• Utilize the Existing Flood Zone Information
• Advantages Low Cost Solution
• Disadvantages
• Boundaries may not agree with the best available
  topographic data

40
Floodplain Mapping
41
DFIRM
42
DFIRM Mapping
43
DFIRM Database
44
Technical Support Data Notebooks (TSDNs)
45
Technical Support Data Notebooks (TSDNs)

• Complete Documentation of Project
• All Data Collected
• All Analyses Assumptions

46
Map Mod Study Process
Flood Mapping Project Phases
Preliminary DFIRM
Post Preliminary Processing
Project Scoping (2 phases)
Community Coordination Mapping
Needs Assessment
Topographic Data Acquisition
DFIRM Production
O U T R E A C H
30 Days
1-8 Months
12-18 Months
30 Days
9-12 Months
30-90 Days
Time frames given are approximate and will vary
from study to study
47
Post-Preliminary Phase

• Communities receive DFIRMs and FIS Report
• CCO Meeting
• Notice of 90 day appeals period
• Two weeks later Second notification stating the
  90 day appeal period begun
• After appeals, a six month compliance period
  commences

48
Post-Preliminary Phase (cont.)

• During the 6 month compliance period, communities
  must adopt a new floodplain ordinance that
  recognizes the new maps
• If a community has not passed the ordinance
  within the 6 month compliance period, the
  community will be suspended from the program.
• Maps become effective at the end of the 6 month
  compliance period.

49
Community Partnering Agreement

• Community Partner Memorandum of Agreement (MOA)
• Cooperative Technical Partners Program
  Partnership Agreement
• Flood Maps More Accurate Updated Faster
• Improved Hazard Identification and Risk
  Assessment
• Shared Best Practices

50
Coordination/Outreach

• Scoping Meeting April 12, 2006
• Website www.halff-femastudy.com
• Hotline 1-877-HalffTX (425-3389)
• FEMA Compliance Toolkit
• Future Meetings

51
RMC Public Awareness

• Keeping Public Informed
• Public Awareness Materials
• Publications
• Point of Contact for Public Awareness

52
What Can the Communities Do?

• Continue to provide technical data
• Continue to support the FEMA effort
• Sign MOA if you have not already
• Timely review and comments on Preliminary Maps
• Start Adoption Process Now!

53
For More Information

• www.fema.gov

54
Halff FEMA Re-Study Website Hotline
www.halff-femastudy.com Hotline 1(877) HALFF-TX
55
Questions?
56
FEMAFlood Insurance Study

• Matagorda County
• Scoping Meeting

April 12, 2006