Multi-Hazard Flood Map Modernization

Flood Map Modernization

Multi-Hazard Flood Map Modernization

NOAA Height Mod Conference12/1/06

Dave Jula, Michael Baker Jr., Inc.

Flood Map ModernizationIntroductionIntroduction

Accurate information about risks is the first step in preventing and reducing losses.


IntroductionIntroduction

To support the vision, “A Nation Prepared,” the Federal Emergency Management Agency (FEMA), has undertaken the Map Modernization effort to update the Nation’s flood hazard maps.


Map Modernization ObjectivesMap Modernization Objectives

EnablingTechnology

Establishes Premier Data Collection and Delivery System

Partners Delivering Results Builds and Maintains

Mutually Beneficial Partnerships

Effective ProgramManagement

Provides for the Efficient use of

National Resources

Empowering the User

CommunityCreates Better Informed Users


Who Benefits from Map Modernization?Who Benefits from Map Modernization?

Flood Map ModernizationProgram Management Program Management

EXECUTIVE BRANCH

OMB DHS FEMA

FEMA

LEGISLATIVE BRANCH

GAO

Flood Map ModernizationMapping Information Platform (MIP)Mapping Information Platform (MIP)

What is the MIP?

Web-Based Technology that Enables the Management, Extraction, Sharing, and Production of Map Modernization Data

How Does it Help?

Proactive Centralized Project Management and Tracking

Standard Data Collection Search and Storage

Free Tools Available


Identify Problem by Reviewing Project

Summary and Reports

3

Perform task and update MIP

4

Tracking and Management Tool for Map Mod

• Over 1,290 Active Studies• Over 20,000 MT-1s (LOMAs)• Over 1,400 MT-2s (LOMRs)• Over 20,000 Communities• Over 60 Contractors• Over 200 CTPshttp://hazards.fema.gov

MIPMIP


MIP: RepositoryMIP: Repository

The geospatial platform will be the repository for the national GIS data layer and will store the following:

• Final Digital Flood Insurance Rate Map (DFIRM) data

• Intermediate data, including the outputs of key steps used to create the DFIRM data. Scoping Survey Elevation Hydrology and hydraulics modeling data Base Flood Elevations (BFEs) Flood outlines and other pertinent data

Flood Map ModernizationWebsites and TechnologyWebsites and Technology


Role of the NSPRole of the NSP

The MOD Team helps FEMA with all aspects of Map Modernization:

• Map Production

• Map Adoption

• Outreach Activities

• Program Management

• Geospatial Platform


MetricsMetrics

Original Course

Adjusted Course

% of land area of continental United States covered by digital flood maps

100% 65%

% of U.S. population covered by digital flood maps 100% 92%

% of mapped stream miles meeting 2005 Floodplain Boundary Standard

57% 75%

% of population covered by maps meeting 2005 Floodplain Boundary Standard 32% 80%

% of mapped stream miles with validated, new or updated engineering analysis 22% 30%

% of population covered by maps with validated, new or updated engineering analysis 15% 40%

Flood Map ModernizationColorado RiskColorado Risk


Balancing National Goals

with Local Needs

MHIP MHIP


MHIP – Stakeholder InvolvementMHIP – Stakeholder Involvement

We are here!

Flood Map ModernizationElevation Data Elevation Data

Data Capture Standards

NDEP/NDOP


Purpose of Data Capture StandardsPurpose of Data Capture Standards

Provide a consistent framework for collection, storage, and retrieval of the data needed for a Flood Insurance Study (FIS)

Describe what needs to be captured from digital data that was used in the FIS

Capture key data required for model maintenance and quality control

Verify that the data can be accessed easily and used for other projects


Survey DataSurvey Data


Survey DataSurvey Data

Complete digital submission of all survey data files, photographs, sketches, and notes

Data specifications for surveyed cross sections and structures

• Cross sections• Bridges• Culverts• Dams• Elevation Reference Marks• High water marks• Levees


Acceptable Data FormatsAcceptable Data Formats

Database tables• Microsoft Access 2000

• dBase IV tables Metadata Photographs

• Portable Network Graphic (PNG)

• JPEG (JPG)

• Bitmap (BMP)

Sketches• Adobe Acrobat (PDF)

• PNG

• JPG Spatial files

• ESRI shapefiles

• Open GML format


Terrain DataTerrain Data


Terrain DataTerrain Data

Point data

• LIDAR (bare earth, as well as all returns)

• Digital Elevevation Model (DEM)

• Simple points

Line data

• 2D breaklines

• 3D breaklines

• Contours

Sample space delimited ASCII format

Sample ArcInfo TIN Generate Data

ncols 388nrows 470xllcorner 1403871.8063797yllcorner 596792.97960783cellsize 98.452218539356NODATA_value -9999

-9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 878.5531 878.5531 875.2723 868.7106 865.4297 868.7106 878.5531 878.5531 878.5531 885.1148 885.1148 888.3956 891.6765 881.834 865.4297 862.1489 871.9915 871.9915 865.4297 865.4297 868.7106 868.7106 868.7106 855.5872 858.8681 858.8681

Sample Grid ASCII Format


Acceptable Terrain Data FormatsAcceptable Terrain Data Formats

ArcInfo TIN generate line or point AutoCAD DXF ESRI grid ASCII Comma or space delimited point text LAS binary LIDAR points Point shapefile Polyline shapefile

Flood Map ModernizationNDEPNDEP

Purpose:• To track proposed, planned, in-work, and completed

projects and associated details

Users:• Producers and users of high-quality elevation data• Anyone interested in where and when future elevation

data acquisition might happen

Flood Map ModernizationNDEP NDEP

National

Digital

Elevation

Program

http://hazards.fema.gov/metadata/NDEP/

Flood Map ModernizationNDEP NDEP


1-877 FEMA MAP FMAC representatives also handle map revision inquiries from:

• Surveyors• Engineers• Lenders• Insurance Agents• Appraisers

• Floodplain Managers

FEMA Map Assistance Center (FMAC)FEMA Map Assistance Center (FMAC)

Documents

Multi-Hazard Flood Map Modernization