Vermont, Indiana, Elevation Theme, Marshall Islands, South Carolina, New Mexico, Maine, Florida, California, Oklahoma, structure, Federated State of Micronesia, Idaho, NFIP, North Carolina, Special Flood Hazard Area, New York, Wyoming, Kentucky, Palau, FIRM Database, Riverine Flooding, Virgin Islands, FIRM, National Geospatial Data Asset, Iowa, inlandWaters, Delaware, Colorado, environment, South Dakota, Puerto Rico, Georgia, Kansas, Massachusetts, Rhode Island, FEMA Flood Hazard Zone, NGDA, Alabama, North Dakota, West Virginia, Hawaii, Arkansas, Michigan, Guam, Virginia, Nebraska, Montana, Utah, Alaska, Connecticut, Floodway, Tennessee, New Hampshire, Oregon, Nevada, New Jersey, SFHA, Base Flood Elevation, Mississippi, Arizona, Coastal Flooding, American Samoa, Flood Insurance Rate Map, Texas, Wisconsin, Washington, Coastal Barrier Resources System, Missouri, Ohio, CBRS, U.S. Minor Islands, hydrology, Pennsylvania, Minnesota, Louisiana, Maryland, Northern Mariana Islands, District of Columbia, transportation, elevation, Illinois
The FIRM is the basis for floodplain management, mitigation, and insurance activities for the National Flood Insurance Program (NFIP). Insurance applications include enforcement of the mandatory purchase requirement of the Flood Disaster Protection Act, which "... requires the purchase of flood insurance by property owners who are being assisted by Federal programs or by Federally supervised, regulated or insured agencies or institutions in the acquisition or improvement of land facilities located or to be located in identified areas having special flood hazards, " Section 2 (b) (4) of the Flood Disaster Protection Act of 1973. In addition to the identification of Special Flood Hazard Areas (SFHAs), the risk zones shown on the FIRMs are the basis for the establishment of premium rates for flood coverage offered through the NFIP. The FIRM Database presents the flood risk information depicted on the FIRM in a digital format suitable for use in electronic mapping applications. The FIRM Database serves to archive the information collected during the Flood Risk Project.
The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Management Agency (FEMA), and any Letters of Map Revision (LOMRs) that have been issued against those databases since their publication date. It is updated on a monthly basis. The FIRM Database is the digital, geospatial version of the flood hazard information shown on the published paper FIRMs. The FIRM Database depicts flood risk information and supporting data used to develop the risk data. The primary risk classifications used are the 1-percent-annual-chance flood event, the 0.2-percent-annual-chance flood event, and areas of minimal flood risk. The FIRM Database is derived from Flood Insurance Studies (FISs), previously published FIRMs, flood hazard analyses performed in support of the FISs and FIRMs, and new mapping data, where available. The FISs and FIRMs are published by FEMA. The NFHL is available as State or US Territory data sets. Each State or Territory data set consists of all FIRM Databases and corresponding LOMRs available on the publication date of the data set. The specification for the horizontal control of FIRM Databases is consistent with those required for mapping at a scale of 1:12,000. This file is georeferenced to the Earth's surface using the Geographic Coordinate System (GCS) and North American Datum of 1983.
There are no credits for this item.
The hardcopy FIRM and FIRM Database and the accompanying FIS are the official designation of SFHAs and Base Flood Elevations (BFEs) for the NFIP. For the purposes of the NFIP, changes to the flood risk information published by FEMA may only be performed by FEMA and through the mechanisms established in the NFIP regulations (44 CFR Parts 59-78). These digital data are produced in conjunction with the hardcopy FIRMs and generally match the hardcopy map exactly. Acknowledgement of FEMA would be appreciated in products derived from these data.
West | -91.737339 | East | -88.095840 |
North | 35.005530 | South | 30.139017 |
There is no scale range for this item.
ArcGIS Metadata ►
THEMES OR CATEGORIES OF THE RESOURCE inlandWaters, transportation, environment, structure, elevation
PLACE KEYWORDS Vermont, Indiana, Marshall Islands, South Carolina, New Mexico, Maine, Florida, California, Oklahoma, Federated State of Micronesia, Idaho, North Carolina, New York, Wyoming, Kentucky, Palau, Virgin Islands, Iowa, Delaware, Colorado, South Dakota, Puerto Rico, Georgia, Kansas, Massachusetts, Rhode Island, Alabama, North Dakota, West Virginia, Hawaii, Arkansas, Michigan, Guam, Virginia, Nebraska, Montana, Utah, Alaska, Connecticut, Tennessee, New Hampshire, Oregon, Nevada, New Jersey, Mississippi, Arizona, American Samoa, Texas, Wisconsin, Washington, Missouri, Ohio, U.S. Minor Islands, Pennsylvania, Minnesota, Louisiana, Maryland, Northern Mariana Islands, District of Columbia, Illinois
THEME KEYWORDS NFIP, Special Flood Hazard Area, FIRM Database, Riverine Flooding, FIRM, FEMA Flood Hazard Zone, Floodway, SFHA, Base Flood Elevation, Coastal Flooding, Flood Insurance Rate Map, Coastal Barrier Resources System, CBRS
Thesaurus ►
TITLE FEMA NFIP Topic Category
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THEME KEYWORDS structure, inlandWaters, environment, hydrology, transportation, elevation
Thesaurus ►
TITLE ISO 19115 Topic Category
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THEME KEYWORDS Elevation Theme, National Geospatial Data Asset, NGDA
Thesaurus ►
TITLE NGDA Portfolio Themes
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PUBLICATION DATE 2019-02-14
EDITION Version 1.1.1.0
PRESENTATION FORMATS * digital map
FGDC GEOSPATIAL PRESENTATION FORMAT FEMA-NFHL
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Responsible party
ORGANIZATION'S NAME Federal Emergency Management Agency
CONTACT'S ROLE originator
Responsible party
ORGANIZATION'S NAME Federal Emergency Management Agency
CONTACT'S ROLE publisher
Contact information ►
Address
DELIVERY POINT Washington, D.C.
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DATASET LANGUAGES English (UNITED STATES)
STATUS under development
SPATIAL REPRESENTATION TYPE * vector
ArcGIS item properties
NAME MS_Fld_Haz_May_19
SIZE 1066.554
LOCATION file://\\DESKTOP- TP9LNVL\F$\DATA\00_HYDROLOGY\DFIRM_Flood_Shapefiles\MS_Fld_Haz_May_19.shp
ACCESS PROTOCOL Local Area Network
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Extent
Geographic extent
Bounding rectangle
WEST LONGITUDE -172
EAST LONGITUDE 147
SOUTH LATITUDE -15
NORTH LATITUDE 72
Extent Description
Publication Date
Temporal extent
DATE AND TIME 2019-02-14
Extent
Geographic extent
Bounding rectangle
EXTENT TYPE Extent used for searching
WEST LONGITUDE -91.737339
EAST LONGITUDE -88.095840
NORTH LATITUDE 35.005530
SOUTH LATITUDE 30.139017
EXTENT CONTAINS THE RESOURCE Yes
Extent in the item's coordinate system
WEST LONGITUDE 318573.391741
EAST LONGITUDE 650997.880953
SOUTH LATITUDE 1039766.776574
NORTH LATITUDE 1577862.063794
EXTENT CONTAINS THE RESOURCE Yes
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Point of contact
ORGANIZATION'S NAME Federal Emergency Management Agency
CONTACT'S ROLE point of contact
Contact information ►
Phone
VOICE 1-877-336-2627
Address
TYPE postal
DELIVERY POINT 500 C Street, S.W.
CITY Washington
ADMINISTRATIVE AREA District of Columbia
POSTAL CODE 20472
COUNTRY US
E-MAIL ADDRESS mscservices@riskmapcds.com
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Resource maintenance
UPDATE FREQUENCY monthly
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Legal constraints
Limitations of use
No warranty expressed or implied is made by FEMA regarding the utility of the data on any other system nor shall the act of distribution constitute any such warranty.
Constraints Limitations of use
The hardcopy FIRM and FIRM Database and the accompanying FIS are the official designation of SFHAs and Base Flood Elevations (BFEs) for the NFIP. For the purposes of the NFIP, changes to the flood risk information published by FEMA may only be performed by FEMA and through the mechanisms established in the NFIP regulations (44 CFR Parts 59-78). These digital data are produced in conjunction with the hardcopy FIRMs and generally match the hardcopy map exactly. Acknowledgement of FEMA would be appreciated in products derived from these data.
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ArcGIS coordinate system
TYPE Projected
GEOGRAPHIC COORDINATE REFERENCE GCS_North_American_1983
PROJECTION NAD_1983_Mississippi_TM
Coordinate reference details
Projected coordinate system
WELL-KNOWN IDENTIFIER 102609
X ORIGIN -5122200
Y ORIGIN -12297100
XY SCALE 450339697.45066422
Z ORIGIN -100000
Z SCALE 10000
M ORIGIN -100000
M SCALE 10000
XY TOLERANCE 0.001
Z TOLERANCE 0.001
M TOLERANCE 0.001
HIGH PRECISION true
LATEST WELL-KNOWN IDENTIFIER 3814
Well-known text
PROJCS["NAD_1983_Mississippi_TM",GEOGCS["GCS_North_American_1983",DATUM["D
_North_American_1983",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM[
"Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mer cator"],PARAMETER["False_Easting",500000.0],PARAMETER["False_Northing",1300000. 0],PARAMETER["Central_Meridian",- 89.75],PARAMETER["Scale_Factor",0.9998335],PARAMETER["Latitude_Of_Origin",32.5], UNIT["Meter",1.0],AUTHORITY["EPSG",3814]]
Reference system identifier
VALUE 3814
CODESPACE EPSG
VERSION 6.17.1(10.0.0)
Hide Spatial Reference ▲
Vector ►
LEVEL OF TOPOLOGY FOR THIS DATASET geometry only
Geometric objects
FEATURE CLASS NAME MS_Fld_Haz_May_19
OBJECT TYPE composite
OBJECT COUNT 32471
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ArcGIS Feature Class Properties ►
FEATURE CLASS NAME MS_Fld_Haz_May_19
FEATURE TYPE Simple
GEOMETRY TYPE Polygon
HAS TOPOLOGY FALSE
FEATURE COUNT 32471
SPATIAL INDEX TRUE
LINEAR REFERENCING FALSE
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Scope of quality information ►
RESOURCE LEVEL dataset
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Data quality report - Conceptual consistency ►
Measure description
When FEMA revises an FIS, adjacent studies are checked to ensure agreement between flood elevations at the boundaries. Likewise flood elevations at the confluence of streams studied independently are checked to ensure agreement at the confluence. The FIRM and the FIS are developed together and care is taken to ensure that the elevations and other features shown on the flood profiles in the FIS agree with the information shown on the FIRM. However, the elevations as shown on the FIRM may represent rounded whole-foot elevations. They must be shown so that a profile recreated from the elevations on the FIRM will match the FIS profiles within one half of one foot.
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Data quality report - Completeness omission ►
Measure description
Data contained in the NFHL reflects the content of the source materials. Features may have been eliminated or generalized on the source graphic, due to scale and legibility constraints. With new mapping, FEMA plans to maintain full detail in the spatial data it produces. However, older information is often transferred from existing maps where some generalization has taken place. Flood risk data are developed for communities participating in the NFIP for use in insurance rating and for floodplain management.
Flood hazard areas are determined using statistical analyses of records of river flow, storm tides, and rainfall; information obtained through consultation with the communities; floodplain topographic surveys; and hydrological and hydraulic analysis. Generally, regulatory water surface elevations and/or regulatory floodways are published only for developed or developing areas of communities. For areas where little or no development is expected to occur, FEMA may generate flood risk data without published water surface elevations. Typically, only drainage areas that are greater than one square mile and with an average of one foot of flood depth or greater are studied. Note: The NFHL reflects the most current information available when the distribution data set was created. Currently, not all areas of a State or Territory have effective FIRM Database data. As a result, users may need to refer to the effective FIRM for effective flood hazard information.
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Data quality report - Quantitative attribute accuracy ►
Measure description
The NFHL incorporates all FIRM Databases published by FEMA and any LOMRs that have been issued against those databases since their publication date. The NFHL consists of vector files and associated attributes produced in conjunction with the
hardcopy FEMA FIRM. The published effective FIRM and FIRM Database are issued as the official designation of the SFHAs. As such they are adopted by local communities and form the basis for administration of the NFIP. For these purposes they are authoritative. Provisions exist in the regulations for public review, appeals and corrections of the flood risk information shown to better match real world conditions. As with any engineering analysis of this type, variation from the estimated flood heights and floodplain boundaries is possible. Details of FEMA's requirements for the FISs and flood mapping process that produces these data are available in the Guidelines and Standards for Flood Risk Analysis and Mapping. Attribute accuracy was tested by manual comparison of source graphics with hardcopy plots and a symbolized display on an interactive computer graphic system. Independent quality control testing of the individual FIRM Database components of the NFHL was also performed. To obtain more detailed information in areas where Base Flood Elevations (BFEs) and/or floodways have been determined, users are encouraged to consult the Flood Profiles and Floodway Data and/or Summary of Stillwater Elevations tables contained within the FIS reports that accompany the individual FIRM Database components of the NFHL. Users should be aware that BFEs shown in the S_BFE table may represent rounded whole-foot elevations. These BFEs are intended for flood insurance rating purposes only and should not be used as the sole source of flood elevation information.
Accordingly, flood elevation data presented in the FIS report must be used in conjunction with the FIRM for purposes of construction and/or floodplain management. The 1-percent-annual-chance water-surface elevations shown in the S_XS table match the regulatory elevations shown in the FIS report.
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Data quality report - Absolute external positional accuracy ►
DIMENSION horizontal
Measure description
The NFHL consists of vector files and associated attributes produced in conjunction with the hardcopy FEMA FIRM. The published effective FIRM and FIRM Database are issued as the official designation of the SFHAs. As such they are adopted by local communities and form the basis for administration of the NFIP. For these purposes they are authoritative. Provisions exist in the regulations for public review, appeals and corrections of the flood risk information shown to better match real world conditions.
As with any engineering analysis of this type, variation from the estimated flood heights and floodplain boundaries is possible. Details of FEMA's requirements for the FISs and flood mapping process that produces these data are available in the Guidelines and Standards for Flood Risk Analysis and Mapping. Horizontal accuracy was tested by manual comparison of source graphics with hardcopy plots and a symbolized display on an interactive computer graphic system. Independent quality control testing of the individual FIRM Database components of the NFHL was also performed.
Hide Data quality report - Absolute external positional accuracy ▲
Data quality report - Absolute external positional accuracy ►
DIMENSION vertical
Measure description
The NFHL consists of vector files and associated attributes produced in conjunction with the hardcopy FEMA FIRM. The published effective FIRM and FIRM Database are issued as the official designation of the SFHAs. As such they are adopted by local communities and form the basis for administration of the NFIP. For these purposes they are authoritative. Provisions exist in the regulations for public review, appeals and corrections of the flood risk information shown to better match real world conditions.
As with any engineering analysis of this type, variation from the estimated flood heights and floodplain boundaries is possible. Details of FEMA's requirements for the FISs and flood mapping process that produces these data are available in the Guidelines and Standards for Flood Risk Analysis and Mapping. The reliability of the floodplain boundary delineation is quantified by comparing the computed flood elevation to the ground elevation at the mapped floodplain boundary. The tolerance for how precisely the flood elevation and the ground elevation must match varies based on the flood risk class, which is a function of population, population density, and/or anticipated growth in floodplain areas. A horizontal accuracy of +/- 38 feet is used to determine the compliance with the vertical tolerances defined for each risk class. The range of differences between the ground elevation (defined from the topographic data used for the Flood Risk Project) and the computed flood elevation is between +/- 1.0 foot at the 95% confidence interval for areas with high population within the floodplain and/or high anticipated growth and Special Flood Hazard Areas (SFHAs) with high flood risk to +/- one-half the contour interval at the 85% confidence interval for areas with low population and densities within the floodplain and small or no anticipated growth and SFHAs with low flood risk. Independent quality control testing of the individual FIRM Database components of the NFHL was also performed.
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Process step ►
WHEN THE PROCESS OCCURRED 2015-01-30
Description
The NFHL dataset is a compilation of effective FIRM Databases (a collection of the digital data that are used in GIS systems for creating new Flood Insurance Rate Maps) and Letters of Map Change (Letters of Map Amendment and Letters of Map Revision only) that create a seamless GIS data layer for a State or Territory. It is updated on a monthly basis. The FIRM Databases are compiled in conjunction with the hardcopy FIRMs and the final FIS reports. The specifics of the hydrologic and hydraulic analyses performed are detailed in the FIS reports available for each jurisdiction. The results of these studies are submitted in digital format to FEMA. These data and unrevised data from effective FIRMs are compiled onto the base map used for FIRM publication and checked for accuracy and compliance with FEMA standards. As new FIRM Databases are received the individual FIRM layers are sewn into the nationwide layers of the NFHL. LOMRs for the FIRM Databases in the NFHL are cut directly into the NFHL data layers as they are being produced and finalized.
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Process
DATE 2019-05-13 13:50:58
TOOL LOCATION c:\program files (x86)\arcgis\desktop10.6\ArcToolbox\Toolboxes\Conversion Tools.tbx\FeatureClassToFeatureClass
Command issued
FeatureClassToFeatureClass F:\DATA\00_HYDROLOGY\DFIRM_Flood_Shapefiles\NFHL_28_20190425.gdb\S_Fld_Haz_A r F:\DATA\00_HYDROLOGY\DFIRM_Flood_Shapefiles MS_FLD_HAZ_May_19_LL.shp # "DFIRM_ID "DFIRM_ID" true true false 6 Text 0 0
,First,#,F:\DATA\00_HYDROLOGY\DFIRM_Flood_Shapefiles\NFHL_28_20190425.gdb\S_ Fld_Haz_Ar,DFIRM_ID,-1,-1;VERSION_ID "VERSION_ID" true true false 11 Text 0 0
,First,#,F:\DATA\00_HYDROLOGY\DFIRM_Flood_Shapefiles\NFHL_28_20190425.gdb\S_ Fld_Haz_Ar,VERSION_ID,-1,-1;FLD_AR_ID "FLD_AR_ID" true true false 32 Text 0 0
,First,#,F:\DATA\00_HYDROLOGY\DFIRM_Flood_Shapefiles\NFHL_28_20190425.gdb\S_ Fld_Haz_Ar,FLD_AR_ID,-1,-1;STUDY_TYP "STUDY_TYP" true true false 28 Text 0 0
,First,#,F:\DATA\00_HYDROLOGY\DFIRM_Flood_Shapefiles\NFHL_28_20190425.gdb\S_ Fld_Haz_Ar,STUDY_TYP,-1,-1;FLD_ZONE "FLD_ZONE" true true false 17 Text 0 0
,First,#,F:\DATA\00_HYDROLOGY\DFIRM_Flood_Shapefiles\NFHL_28_20190425.gdb\S_ Fld_Haz_Ar,FLD_ZONE,-1,-1;ZONE_SUBTY "ZONE_SUBTY" true true false 72 Text 0 0
,First,#,F:\DATA\00_HYDROLOGY\DFIRM_Flood_Shapefiles\NFHL_28_20190425.gdb\S_ Fld_Haz_Ar,ZONE_SUBTY,-1,-1;SFHA_TF "SFHA_TF" true true false 1 Text 0 0
,First,#,F:\DATA\00_HYDROLOGY\DFIRM_Flood_Shapefiles\NFHL_28_20190425.gdb\S_ Fld_Haz_Ar,SFHA_TF,-1,-1;STATIC_BFE "STATIC_BFE" true true false 8 Double 0 0
,First,#,F:\DATA\00_HYDROLOGY\DFIRM_Flood_Shapefiles\NFHL_28_20190425.gdb\S_ Fld_Haz_Ar,STATIC_BFE,-1,-1;V_DATUM "V_DATUM" true true false 17 Text 0 0
,First,#,F:\DATA\00_HYDROLOGY\DFIRM_Flood_Shapefiles\NFHL_28_20190425.gdb\S_ Fld_Haz_Ar,V_DATUM,-1,-1;DEPTH "DEPTH" true true false 8 Double 0 0
,First,#,F:\DATA\00_HYDROLOGY\DFIRM_Flood_Shapefiles\NFHL_28_20190425.gdb\S_ Fld_Haz_Ar,DEPTH,-1,-1;LEN_UNIT "LEN_UNIT" true true false 16 Text 0 0
,First,#,F:\DATA\00_HYDROLOGY\DFIRM_Flood_Shapefiles\NFHL_28_20190425.gdb\S_ Fld_Haz_Ar,LEN_UNIT,-1,-1;VELOCITY "VELOCITY" true true false 8 Double 0 0
,First,#,F:\DATA\00_HYDROLOGY\DFIRM_Flood_Shapefiles\NFHL_28_20190425.gdb\S_ Fld_Haz_Ar,VELOCITY,-1,-1;VEL_UNIT "VEL_UNIT" true true false 20 Text 0 0
,First,#,F:\DATA\00_HYDROLOGY\DFIRM_Flood_Shapefiles\NFHL_28_20190425.gdb\S_ Fld_Haz_Ar,VEL_UNIT,-1,-1;AR_REVERT "AR_REVERT" true true false 17 Text 0 0
,First,#,F:\DATA\00_HYDROLOGY\DFIRM_Flood_Shapefiles\NFHL_28_20190425.gdb\S_ Fld_Haz_Ar,AR_REVERT,-1,-1;AR_SUBTRV "AR_SUBTRV" true true false 57 Text 0 0
,First,#,F:\DATA\00_HYDROLOGY\DFIRM_Flood_Shapefiles\NFHL_28_20190425.gdb\S_ Fld_Haz_Ar,AR_SUBTRV,-1,-1;BFE_REVERT "BFE_REVERT" true true false 8 Double
0 0
,First,#,F:\DATA\00_HYDROLOGY\DFIRM_Flood_Shapefiles\NFHL_28_20190425.gdb\S_ Fld_Haz_Ar,BFE_REVERT,-1,-1;DEP_REVERT "DEP_REVERT" true true false 8 Double
0 0
,First,#,F:\DATA\00_HYDROLOGY\DFIRM_Flood_Shapefiles\NFHL_28_20190425.gdb\S_ Fld_Haz_Ar,DEP_REVERT,-1,-1;DUAL_ZONE "DUAL_ZONE" true true false 1 Text 0 0
,First,#,F:\DATA\00_HYDROLOGY\DFIRM_Flood_Shapefiles\NFHL_28_20190425.gdb\S_ Fld_Haz_Ar,DUAL_ZONE,-1,-1;SOURCE_CIT "SOURCE_CIT" true true false 21 Text 0 0
,First,#,F:\DATA\00_HYDROLOGY\DFIRM_Flood_Shapefiles\NFHL_28_20190425.gdb\S_
Fld_Haz_Ar,SOURCE_CIT,-1,-1;SHAPE_Leng "SHAPE_Leng" false true true 8 Double
0 0
,First,#,F:\DATA\00_HYDROLOGY\DFIRM_Flood_Shapefiles\NFHL_28_20190425.gdb\S_ Fld_Haz_Ar,SHAPE_Length,-1,-1;SHAPE_Area "SHAPE_Area" false true true 8 Double 0 0
,First,#,F:\DATA\00_HYDROLOGY\DFIRM_Flood_Shapefiles\NFHL_28_20190425.gdb\S_ Fld_Haz_Ar,SHAPE_Area,-1,-1" #
INCLUDE IN LINEAGE WHEN EXPORTING METADATA No
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Distributor ►
Contact information
ORGANIZATION'S NAME FEMA, Flood Map Service Center
CONTACT'S ROLE distributor
Contact information ►
Phone
VOICE 1-877-336-2627
Address
TYPE postal
DELIVERY POINT P.O. Box 3617
CITY Oakton
ADMINISTRATIVE AREA Virginia
POSTAL CODE 22124
COUNTRY US
E-MAIL ADDRESS mscservices@riskmapcds.com
Contact instructions
Data requests must include the name and FIPS code of each State or Territory covered by the request, along with an MSC account number if applicable.
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Available format
NAME Esri Shapefile
Available format
NAME fGDB
Ordering process
TERMS AND FEES Contact Distributor
Transfer options
Online source
Transfer options
Online source
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Distribution format
NAME Shapefile
Transfer options
TRANSFER SIZE 1066.554
Online source
LOCATION https://msc.fema.gov
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DETAILS FOR OBJECT MS_Fld_Haz_May_19 ►
TYPE Feature Class
ROW COUNT 32471
FIELD FID ►
ALIAS FID
DATA TYPE OID
WIDTH 4
PRECISION 0
SCALE 0
Field description
Internal feature number.
Description source
Esri
Description of values
Sequential unique whole numbers that are automatically generated.
Hide Field FID ▲
FIELD SHAPE ►
ALIAS Shape
DATA TYPE Geometry
WIDTH 0
PRECISION 0
SCALE 0
Field description
Feature geometry.
Description source
Esri
Description of values
Coordinates defining the features.
Hide Field SHAPE ▲
FIELD DFIRM_ID ►
ALIAS DFIRM_ID
DATA TYPE String
WIDTH 6
PRECISION 0
SCALE 0
Hide Field DFIRM_ID ▲
FIELD VERSION_ID ►
ALIAS VERSION_ID
DATA TYPE String
WIDTH 11
PRECISION 0
SCALE 0
Hide Field VERSION_ID ▲
FIELD FLD_AR_ID ►
ALIAS FLD_AR_ID
DATA TYPE String
WIDTH 32
PRECISION 0
SCALE 0
Hide Field FLD_AR_ID ▲
FIELD STUDY_TYP ►
ALIAS STUDY_TYP
DATA TYPE String
WIDTH 28
PRECISION 0
SCALE 0
Hide Field STUDY_TYP ▲
FIELD FLD_ZONE ►
ALIAS FLD_ZONE
DATA TYPE String
WIDTH 17
PRECISION 0
SCALE 0
Hide Field FLD_ZONE ▲
FIELD ZONE_SUBTY ►
ALIAS ZONE_SUBTY
DATA TYPE String
WIDTH 72
PRECISION 0
SCALE 0
Hide Field ZONE_SUBTY ▲
FIELD SFHA_TF ►
ALIAS SFHA_TF
DATA TYPE String
WIDTH 1
PRECISION 0
SCALE 0
Hide Field SFHA_TF ▲
FIELD STATIC_BFE ►
ALIAS STATIC_BFE
DATA TYPE Double
WIDTH 19
PRECISION 0
SCALE 0
Hide Field STATIC_BFE ▲
FIELD V_DATUM ►
ALIAS V_DATUM
DATA TYPE String
WIDTH 17
PRECISION 0
SCALE 0
Hide Field V_DATUM ▲
FIELD DEPTH ►
ALIAS DEPTH
DATA TYPE Double
WIDTH 19
PRECISION 0
SCALE 0
Hide Field DEPTH ▲
FIELD LEN_UNIT ►
ALIAS LEN_UNIT
DATA TYPE String
WIDTH 16
PRECISION 0
SCALE 0
Hide Field LEN_UNIT ▲
FIELD VELOCITY ►
ALIAS VELOCITY
DATA TYPE Double
WIDTH 19
PRECISION 0
SCALE 0
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FIELD VEL_UNIT ►
ALIAS VEL_UNIT
DATA TYPE String
WIDTH 20
PRECISION 0
SCALE 0
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FIELD AR_REVERT ►
ALIAS AR_REVERT
DATA TYPE String
WIDTH 17
PRECISION 0
SCALE 0
Hide Field AR_REVERT ▲
FIELD AR_SUBTRV ►
ALIAS AR_SUBTRV
DATA TYPE String
WIDTH 57
PRECISION 0
SCALE 0
Hide Field AR_SUBTRV ▲
FIELD BFE_REVERT ►
ALIAS BFE_REVERT
DATA TYPE Double
WIDTH 19
PRECISION 0
SCALE 0
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FIELD DEP_REVERT ►
ALIAS DEP_REVERT
DATA TYPE Double
WIDTH 19
PRECISION 0
SCALE 0
Hide Field DEP_REVERT ▲
FIELD DUAL_ZONE ►
ALIAS DUAL_ZONE
DATA TYPE String
WIDTH 1
PRECISION 0
SCALE 0
Hide Field DUAL_ZONE ▲
FIELD SOURCE_CIT ►
ALIAS SOURCE_CIT
DATA TYPE String
WIDTH 21
PRECISION 0
SCALE 0
Hide Field SOURCE_CIT ▲
FIELD SHAPE_Leng ►
ALIAS SHAPE_Leng
DATA TYPE Double
WIDTH 19
PRECISION 0
SCALE 0
Hide Field SHAPE_Leng ▲
FIELD SHAPE_Area ►
ALIAS SHAPE_Area
DATA TYPE Double
WIDTH 19
PRECISION 0
SCALE 0
Field description
Area of feature in internal units squared.
Description source
Esri
Description of values
Positive real numbers that are automatically generated.
Hide Field SHAPE_Area ▲
Hide Details for object MS_Fld_Haz_May_19 ▲
Overview Description ►
Entity and Attribute Overview
The NFHL is made up of several data themes containing both spatial and attribute information. These data together represent the current flood risk for the subject area as identified by FEMA. The attribute tables include SFHA locations, flood zone designations, BFEs, political entities, cross-section locations, FIRM panel information, and other data related to the NFIP.
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METADATA LANGUAGE English (UNITED STATES)
METADATA CHARACTER SET utf8 - 8 bit UCS Transfer Format
SCOPE OF THE DATA DESCRIBED BY THE METADATA dataset
SCOPE NAME * dataset
ArcGIS metadata properties
METADATA FORMAT ArcGIS 1.0
METADATA STYLE FGDC CSDGM Metadata
CREATED IN ARCGIS FOR THE ITEM 2019-05-13 13:54:34
LAST MODIFIED IN ARCGIS FOR THE ITEM 2019-05-13 13:57:08
Automatic updates
HAVE BEEN PERFORMED Yes
LAST UPDATE 2019-05-13 13:57:08
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Metadata contact
INDIVIDUAL'S NAME Flood Map Service Center
ORGANIZATION'S NAME Federal Emergency Management Agency
CONTACT'S ROLE point of contact
Contact information ►
Phone
VOICE 1-877-336-2627
Address
TYPE postal
DELIVERY POINT 500 C Street, S.W.
CITY Washington
ADMINISTRATIVE AREA District of Columbia
POSTAL CODE 20472
COUNTRY US
E-MAIL ADDRESS mscservices@riskmapcds.com
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FGDC Metadata (read-only) ▼
Detailed Description Entity Type
ENTITY TYPE LABEL MS_Fld_Haz_May_19
Attribute
ATTRIBUTE LABEL FID
Attribute Definition
Internal feature number.
ATTRIBUTE DEFINITION SOURCE Esri
Attribute Domain Values Unrepresentable Domain
Sequential unique whole numbers that are automatically generated.
Attribute
ATTRIBUTE LABEL SHAPE
Attribute Definition
Feature geometry.
ATTRIBUTE DEFINITION SOURCE Esri
Attribute Domain Values Unrepresentable Domain
Coordinates defining the features.
Attribute
ATTRIBUTE LABEL DFIRM_ID
Attribute
ATTRIBUTE LABEL VERSION_ID
Attribute
ATTRIBUTE LABEL FLD_AR_ID
Attribute
ATTRIBUTE LABEL STUDY_TYP
ATTRIBUTE ATTRIBUTE LABEL FLD_ZONE
ATTRIBUTE ATTRIBUTE LABEL ZONE_SUBTY
ATTRIBUTE ATTRIBUTE LABEL SFHA_TF
ATTRIBUTE ATTRIBUTE LABEL STATIC_BFE
ATTRIBUTE ATTRIBUTE LABEL V_DATUM
ATTRIBUTE ATTRIBUTE LABEL DEPTH
ATTRIBUTE ATTRIBUTE LABEL LEN_UNIT
ATTRIBUTE ATTRIBUTE LABEL VELOCITY
ATTRIBUTE ATTRIBUTE LABEL VEL_UNIT
Attribute
ATTRIBUTE LABEL AR_REVERT
ATTRIBUTE ATTRIBUTE LABEL AR_SUBTRV
ATTRIBUTE ATTRIBUTE LABEL BFE_REVERT
ATTRIBUTE ATTRIBUTE LABEL DEP_REVERT
ATTRIBUTE LABEL DUAL_ZONE
Attribute
ATTRIBUTE LABEL SOURCE_CIT
Attribute
ATTRIBUTE LABEL SHAPE_Leng
Attribute
ATTRIBUTE LABEL SHAPE_Area
Attribute Definition
Attribute
Area of feature in internal units squared.
ATTRIBUTE DEFINITION SOURCE Esri
Attribute Domain Values Unrepresentable Domain
Positive real numbers that are automatically generated.
Overview Description
Entity and Attribute Overview
The NFHL is made up of several data themes containing both spatial and attribute information. These data together represent the current flood risk for the subject area as identified by FEMA. The attribute tables include SFHA locations, flood zone designations, BFEs, political entities, cross-section locations, FIRM panel information, and other data related to the NFIP.
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