The entire Vermont extent of the National Flood Hazard Layer (NFHL) as acquired 12/15/15 from the FEMA Map Service Center msc.fema.gov upon publication 12/2/2015 and converted to VSP.The FEMA DFIRM NFHL database compiles all available officially-digitized Digital Flood Insurance Rate Maps. This extract from the FEMA Map Service Center includes all of such data in Vermont including counties and a few municipalities. This data includes the most recent map update for Bennington County effective 12/2/2015.DFIRM - Letter of Map Revision (LOMR) DFIRM X-Sections DFIRM Floodways Special Flood Hazard Areas (All Available)

Metadata for the OpenFEMA API data sets. It contains attributes regarding the published datasets including but not limited to update frequency, description, version, and deprecation status.rnrnIf you have media inquiries about this dataset please email the FEMA News Desk FEMA-News-Desk@dhs.gov or call (202) 646-3272. For inquiries about FEMA's data and Open government program please contact the OpenFEMA team via email OpenFEMA@fema.dhs.gov.

This submission includes publicly available data extracted in its original form. Please reference the Related Publication listed here for source and citation information "This page is intended to be a one stop shop for OpenFEMA—FEMA’s data delivery platform which provides datasets to the public in open, industry standard, machine-readable formats. Datasets are available in multiple formats, including downloadable files and through an easily digestible Application Programming Interface (API). Each page includes information about the specific dataset, links to downloadable files, a data dictionary describing each field, and an endpoint link (if applicable for those datasets available via the API)." [Quote from https://www.fema.gov/about/openfema/data-sets] This dataset includes: Annual NFIRS Public Data Emergency Management Performance Grants IPAWS Archived Alerts National Household Survey Non-Disaster and Assistance to Firefighter Grants Sandy PMO: Disaster Relief Appropriations Act of 2013 (Sandy Supplemental Bill) Financial Data Please review the updated PDF/HTML documentation for more details. (2025-01-31)

Open the Data Resource: https://experience.arcgis.com/experience/e492db86d9b348399f4bd20330b4b274 This viewer shares a variety of flood hazard and risk data produced by the Federal Emergency Management Agency (FEMA). Some flood hazard and flood risk data produced by FEMA define minimum requirements for the National Flood Insurance Program (NFIP). This viewer includes these required NFIP data and includes other data showing current and potential future flood hazard and risk.

This App includes 3,141 summary records by U.S. County for all Federal disaster declarations between 1964 and 2013. The initial map display shows the All Incidents later, but there are 12 Additional layers users can display showing the county declaration summary data by Incident Type (Fire, Flood, Tornado, etc...]. Click on an disaster declaration highlighted on the map and a custom pop-up attribute display will show you the disaster declaration information and census population estimates for reference. This App also includes a number of map tools to help visualize and analyze the data. NSGIC Data Citation:This project uses existing FEMA data resources that are the authoritative sources of information on this topic, including geospatial data files and open data APIs that were used to access available FEMA Federally-declared Natural Disaster data in the United States available from 1964 to 2014 (through 2013).To support our mapping needs, NSGIC downloaded a snapshot of FEMA data and published our own data Service Definitions and Feature Layers on NSGIC’s ArcGIS Online Mapping Platform to create the unfiltered Feature Layer Services we needed to support our mapping needs of the FEMA Federally Declared Disaster data.Note: These original data sources reflect a variety of inconsistencies and completeness is data collection, as well as changing definitions and priorities in FEMA’s disaster declaration information collection since record-keeping began in 1964. The original data was not modified.To publish the new Feature Layers on ArcGIS Online, NSGIC joined the FEMA Natural Disaster data with an Esri US County polygon shapefile with county population and demographic attributes from the U.S. Census Bureau’s American Community Survey. NSGIC added the 2010 and 2015 population estimates from the Census Bureau’s American Community Survey to relate the impacts of every declared natural disaster to current time frame.A significant portion of the available attribute data is not displayed in the NSGIC interactive maps, but is accessible through the site by experienced users.More recent data may be available from the original sourcesFEMA Data Citation:Data for this project was downloaded from FEMA in April 2016 and reflects the data available at that time using the available APIs.This product uses the Federal Emergency Management Agency’s API, but is not endorsed by FEMA.FEMA cannot verify the quality and/or timeliness of any data or any analysis derived therefrom after the data has been retrieved from FEMA.gov.

The National Flood Insurance Program (NFIP) aims to reduce the impact of flooding on private and public structures.The redacted claims dataset provides details on NFIP claims transactions. It is derived from the NFIP system of record, staged in the NFIP reporting platform and redacted to protect policy holder personally identifiable information. This dataset represents more than 2,000,000 claims transactions. In order to improve accessibility, we have one compressed file. The Reinsurance data set was developed in support of FEMA reinsurance placement. We are sharing some of the reinsurance placement information with the general public, because it is important for the nation to more clearly understand our shared flood risk. The data and information was derived in part using catastrophic flood risk models developed by AIR-Worldwide and RMS, two well known risk model developers. That information may also be useful for the insurance industry, academics, and others in understanding and studying flood risk within the United States. FEMA looks to continue to foster strong private-public partnerships as FEMA, the public, academia, and the private sector work together to improve flood resiliency in the United States.The Community Layer datasets contain geospatial community boundaries associated with Census and NFIP data. The dataset does not contain personal identifiable information (PII). The Community Layer can be used to tie Community ID numbers (CID) to jurisdiction, tribal, and special land use area boundaries. A geodatabase (GDB) link is Included in the Full Data section below. The compressed file contains a collection of files that can store, query, and manage both spatial and nonspatial data using software that can read such a file. It contains all of the community layers, not just the layer for which this dataset page describes.The No Overlaps Whole Community Layer dataset is a variation on the Comprehensive Community Layer dataset, but flattened, with multi-county communities not split by county lines. "Flattened" means that there are no overlaps; larger shapes like counties are "punched out" or "clipped" where smaller communities are contained within them. This allows for choropleth shading and other mapping techniques such as calculating unincorporated county land area. Multicounty cities like Houston are a single feature, undivided by counties. This layer is derived from Census, State of Maine, and National Flood Hazard Layer political boundaries.The No Overlaps Split Community Layer Dataset is a variation on the Comprehensive Community Layer dataset, but flattened, with multi-county communities split by county lines. "Flattened" means that there are no overlaps; larger shapes like counties are "punched out" or "clipped" where smaller communities are contained within them. This allows for choropleth shading and other mapping techniques such as calculating unincorporated county land area. Multicounty cities like Houston are split by county lines, allowing easier county summarization and alignment with certain NFIP statistics. This layer is derived from Census, State of Maine, and National Flood Hazard Layer political boundaries.The NFIP Community Status Book dataset contains the current NFIP status of a community which determines whether citizens have the opportunity to purchase flood insurance as well as qualify for disaster assistance. In addition, this dataset provides the available insurance discount rates for communities that participate in the Community Rating System (CRS).The Multiple Loss Properties dataset contains NFIP-insured structures that fall within the four categories of Repetitive Loss and Severe Repetitive Loss that FEMA tracks. Definitions of these categories are provided in the field descriptions. There are also fields to show whether a structure is currently NFIP-insured, has been mitigated, and other characteristics. The data includes properties that have since been mitigated or demolished and may no longer considered to be in any of the listed categories.

As of August 1, 2017 all FEMA systems will require the use of the “https” protocol, and “http” links will no longer function. This may impact NFHL web services. The FEMA GeoPlatform (including this map) will not be affected by this change. For more information on how NFHL GIS services will be impacted, please visit the NFHL GIS Services page at https://hazards.fema.gov/femaportal/wps/portal/NFHLWMS.An NFHL FIRMette print service is now available HERE. (For a video tutorial, click here.)OverviewThe National Flood Hazard Layer (NFHL) dataset represents the current effective flood data for the country, where maps have been modernized. It is a compilation of effective Flood Insurance Rate Map (FIRM) databases and Letters of Map Change (LOMCs). The NFHL is updated as studies go effective. For more information, visit FEMA's Map Service Center (MSC). Base Map ConsiderationsThe default base map is from a USGS service and conforms to FEMA's specification for horizontal accuracy. This base map from The National Map (TNM) consists of National Agriculture Imagery Program (NAIP) and high resolution orthoimagery (HRO) that combine the visual attributes of an aerial photograph with the spatial accuracy and reliability of a map. This map should be considered the best online resource to use for official National Flood Insurance Program (NFIP) purposes when determining locations in relation to regulatory flood hazard information. If a different base map is used with the NFHL, the accuracy specification may not be met and the resulting map should be used for general reference only, and not official NFIP purposes. Users can download a simplified base map from the USGS service via: https://viewer.nationalmap.gov/services/ For the specifics of FEMA’s policy on the use of digital flood hazard data for NFIP purposes see: http://www.fema.gov/library/viewRecord.do?id=3235Letter of Map Amendment (LOMA) pointsLOMA point locations are approximate. The location of the LOMA is referenced in the legal description of the letter itself. Click the LOMA point for a link to the letter (use the arrows at the top of the popup window to bring up the LOMA info, if needed).This LOMA database may include LOMAs that are no longer effective. To be certain a particular LOMA is currently valid, please check relevant documentation at https://msc.fema.gov/ . Relevant documents can be found for a particular community by choosing to "Search All Products", and finding the community by State and County. Documents include LOMAs found in the "Effective Products" and "LOMC" folders, as well as Revalidations (those LOMAs which are still considered to be effective after a map is revised).Updates3/27/2017 - Updated all references to https to prevent issues with mixed content.5/11/2016 - Added link to NFHL FIRMette Print Service. Updated LOMA and CBRS popup notes.2/20/2014 - Created a General Reference map for use when the USGS base map service is down. Renamed this map to "Official".Further InformationSpecific questions about FEMA flood maps can be directed to FEMAMapSpecialist@riskmapcds.comFor more flood map data, tool, and viewing options, visit the FEMA NFHL page. Information about connecting to web map services (REST, WMS, WFS) can be found here.Several fact sheets are available to help you learn more about FEMA’s NFHL utility: National Flood Hazard Layer (NFHL) GIS Services Users GuideNational Flood Hazard Layer (NFHL): New Products and Services for FEMA's Flood Hazard Map DataMoving to Digital Flood Hazard Information Standards for Flood Risk Analysis and MappingNFHL GIS Data: Perform Spatial Analyses and Make Custom Maps and Reports

Metadata for the OpenFEMA API data set fields. It contains descriptions, data types, and other attributes for each field.rnrnIf you have media inquiries about this dataset please email the FEMA News Desk FEMA-News-Desk@dhs.gov or call (202) 646-3272. For inquiries about FEMA's data and Open government program please contact the OpenFEMA team via email OpenFEMA@fema.dhs.gov.

From the Flood Risk Non-Regulatory Database that went into effect June 5, 2020. For more information, visit FEMA.gov Flood Maps.Flood Hazard Zones: 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 DFIRM Database presents the flood risk information depicted on the FIRM in a digital format suitable for use in electronic mapping applications. The DFIRM database is a subset of the Digital FIS database that serves to archive the information collected during the FIS.The Digital Flood Insurance Rate Map (DFIRM) 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 DFIRM Database is derived from Flood Insurance Studies (FISs), previously published Flood Insurance Rate Maps (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 the Federal Emergency Management Agency (FEMA). The file is georeferenced to earth's surface using the UTM projection and coordinate system. The specifications for the horizontal control of DFIRM data files are consistent with those required for mapping at a scale of 1:12,000.Flood Hazard Boundary Line: Boundary line dividing Special Flood Hazard Area Zones and boundary dividing Special Flood Hazard Areas of different Base Flood Elevations, flood Depths or flood velocities.Flood Hazard BFE: Location and attributes for base flood elevations lines shown on DFIRM. This line layer was converted to a polygon by COM GIS department.Flood Hazard Cross Section: Location and attributes for cross-section lines in the area covered by the DFIRM.Flood Hazard Map Index: Location and attributes for DFIRM hardcopy map panels.Use limitationsThe hardcopy FIRM and DFIRM and the accompanying FISs 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. However the hardcopy flood maps and flood profiles are the authoritative documents for the NFIP. Acknowledgement of FEMA would be appreciated in products derived from these data.

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.

National Levee Database This feature layer, utilizing National Geospatial Data Asset (NGDA) data from the U.S. Army Corps of Engineers (USACE), displays levees within the United States. Per USACE, “The National Levee Database captures all known levees in the United States. It provides users with the ability to search for specific data about levees and serves as a national resource to support awareness and preparedness around flooding. The USACE is responsible for maintaining the National Levee Database and works in partnership with the Federal Emergency Management Agency (FEMA), and in close collaboration with other federal, state, and local governments and entities responsible for levees to obtain and share accurate and complete information.” Leveed area in Morrisville, PennsylvaniaData downloaded: 9/22/2025Data source: NLD/PublicNGDAID: 161 (National Levee Database)OGC API Features Link: (National Levee Database - OGC Features) copy this link to embed it in OGC Compliant viewersFor more information, please visit: National Levee DatabaseSupport documentation: NLD Data DictionaryFor feedback please contact: Esri_US_Federal_Data@esri.com NGDA Data Set This data set is part of the NGDA Water - Inland Theme Community. Per the Federal Geospatial Data Committee (FGDC), Water - Inland is defined as the “interior hydrologic features and characteristics, including classification, measurements, location, and extent. Includes aquifers, watersheds, wetlands, navigation, water quality, water quantity, and groundwater information.” For other NGDA Content: Esri Federal Datasets

This is a dataset download, not a document. The Open button will start the download.This data layer is an element of the Oregon GIS Framework. This feature dataset contains the following feature classes: 1. FEMA Flood Insurance Study base flood elevation (BFE) lines: The FEMA_BFE feature class is a compilation of FEMA Flood Insurance Study base flood elevation (BFE) lines for the state of Oregon. The FEMA Flood Insurance Study base flood elevation (BFE) lines were derived from Digital Flood Insurance Rate Maps and georeferenced paper Flood Insurance Rate Maps. 2. FEMA Flood Insurance Study inundation zones: The FEMA_FLD_HAZ_AR feature class is a compilation of FEMA Flood Insurance Study inundation zones for the state of Oregon. The FEMA Flood Insurance Study inundation zones were derived from Digital Flood Insurance Rate Maps and georeferenced paper Flood Insurance Rate Maps. 3. FEMA Letter of Map Change (LOMC) Locations: The FEMA_LOMC feature class is a compilation of FEMA Letter of Map Change (LOMC) Locations for the state of Oregon. The FEMA Letter of Map Change (LOMC) Locations were downloaded from the FEMA Map Service Center Website. The LOMC points were precisely located using county-level assessor data, orthoimagery, and lidar hillshades. 4. FEMA Flood Insurance Study profile baselines: The FEMA_PROFIL_BASLN feature class is a compilation of FEMA Flood Insurance Study profile baselines for the state of Oregon. The FEMA Flood Insurance Study profile baselines were derived from Digital Flood Insurance Rate Maps and paper Flood Insurance Rate Maps. 5. FEMA Flood Insurance Study cross section (XS) lines: The FEMA_XS feature class is a compilation of FEMA Flood Insurance Study cross section (XS) lines for the state of Oregon. The FEMA Flood Insurance Study cross section (XS) lines were derived from Digital Flood Insurance Rate Maps and paper Flood Insurance Rate Maps. See feature class metadata for detailed information about each feature class.

Context

The market for providing flood insurance policies in the U.S. is almost exclusively backed by the National Flood Insurance Program (NFIP). The NFIP is only available for policies purchased within participating communities, and partners with private insurance companies to distribute flood insurance policies to homeowners and businesses.

Because flooding is the primary vector of economic damages inflicted on local communities as demonstrated by the 2016-2019 hurricane seasons, and given the projected increase in destructive flooding as a result of climate change- there's an enormous need to more efficiently distribute financial risk due to climate change.

Content

This data contains multiple fields about anonymized flood policy holders in the United States:

1. Flood zone rating
2. Building elevation
3. Zip code, county code, census tract, state code, city code
4. Building type
5. Business type
6. Flood insurance deductibles
7. Total insurance coverage
8. Total insurance premium of the policy
9. How the policy was originally rated

Acknowledgements

This data wouldn't be available were it not for the OpenFEMA team- they're the ones primarily responsible for its update and maintenance on its original site: https://www.fema.gov/media-library/assets/documents/180376

(I'm sure they'd appreciate a nice email at OpenFEMA@fema.dhs.gov)

Inspiration

Hurricane season is always right around the corner.

This resource groups data downloaded from FEMA public FTP site for Hurricane Irma [1] for depth grids, flood extents, windfield, and damage assessments. See FEMA's Natural Hazard Risk Assessment Program (NHRAP) ftp site [2] for additional HWM-based depth grids, inundation polygons, and windfield.

References and related links: [1] FEMA public download site for Hurricane Irma 2017 [https://data.femadata.com/NationalDisasters/HurricaneIrma/] [2] FEMA NHRAP ftp [https://data.femadata.com/FIMA/NHRAP/Irma/]

The Housing Assistance Program Data Owners dataset is generated by FEMA's Individual Assistance (IA) reporting team to share data on FEMA's Housing Assistance program for house owners within the state, county, and zip code where the registration is valid for the declarations, starting with disaster declaration DR1439 (declared in November 2002). It contains aggregated, non-PII data. Core data elements include number of applicants, county, zip code, inspections, severity of damage, and assistance provided.The FEMA Individual Assistance Renters dataset was generated by FEMA's Individual Assistance (IA) reporting team to share data on FEMA's Housing Assistance program for house renters within the state, county, and zip code where the registration is valid for the declarations, starting with disaster declaration DR1439 (declared in 2002). It contains aggregated, non-PII data. Core data elements include number of applicants, county, zip code, inspections, severity of damage, and assistance provided.The following disclaimer applies to both Individual Housing Assistance datasets: Data is self-reported and subject to human error. For example, when an applicant registers online, they enter their street and city address. While the county is inferred by the system, it may be overridden by the applicant. Similarly, with a call center registration, the Human Services Specialist (HSS) representatives are instructed to ask in what county the applicant resides, but the applicant has the right to choose the county. To learn more about disaster assistance please visit https://www.fema.gov/individual-disaster-assistance.The financial information is derived from NEMIS and not FEMA's official financial systems. Due to differences in reporting periods, status of obligations and how business rules are applied, this financial information may differ slightly from official publication on public websites such as usaspending.gov; this dataset is not intended to be used for any official federal financial reporting.The Individual and Household Program Registrations dataset contains FEMA applicant-level data for the Individuals and Households Program (IHP). All PII information has been removed. The location is represented by county, city, and zip code. This dataset contains IA applications from DR1439 (declared in 2002) to those declared over 30 days ago. The full data set is refreshed on an annual basis; the last 18 months of data are refreshed weekly. This dataset includes all major disasters and includes only valid registrants (applied in a declared county, within the registration period, having damage due to the incident and damage within the incident period). IHP is intended to meet basic needs and supplement disaster recovery efforts. See https://www.fema.gov/assistance/individual/program/eligibility for more information. Valid registrants may be eligible for IA assistance, which is intended to meet basic needs and supplement disaster recovery efforts. IA assistance is not intended to return disaster-damaged property to its pre-disaster condition. Disaster damage to secondary or vacation homes does not qualify for IHP assistance. Data comes from FEMA's National Emergency Management Information System (NEMIS) with raw, unedited, self-reported content and is subject to a small percentage of human error.The Individual Assistance Large Disasters data set contains detailed non-PII data on the Individuals and Households Program (IHP). FEMA provides assistance to individuals and households through the IA program, comprised of two categories of assistance: Housing Assistance (HA) and Other Needs Assistance (ONA).The Registration Intake and Individual Household Program dataset contains aggregated, non-PII data from Housing Assistance Program reporting authority within FEMA’s Recovery Directorate to share data on registrations and Individuals and Households Program (IHP) for declarations starting from disaster declaration number 4116, segmented by city where registration is valid. Additional core data elements include: valid call center registrations, valid web registrations, valid mobile registrations, IHP eligible, IHP amount, HA eligible, HA amount, ONA eligible, and ONA amount.

This is a MD iMAP hosted service. Find more information on http://imap.maryland.gov. The DFIRM Database presents the flood risk information depicted on a given Flood Insurance Rate Map (FIRM) in a digital format suitable for use in electronic mapping applications. The DFIRM database is a subset of the Digital Flood Insurance Study (FIS) database that serves to archive the information collected during the FIS. This map service is a composite of Effective and Preliminary floodplain data. Q3 data is used where neither Effective or Preliminary data is available for a given community. 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 DFIRM Database is derived from Flood Insurance Studies (FISs) - previously published Flood Insurance Rate Maps (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 the Federal Emergency Management Agency (FEMA). The specifications for the horizontal control of DFIRM data files are consistent with those required for mapping at a scale of 1:12 - 000. Last Updated: 03/2016 Map Service Link: https://mdgeodata.md.gov/imap/rest/services/Hydrology/MD_Floodplain/FeatureServer ADDITIONAL LICENSE TERMS: The Spatial Data and the information therein (collectively "the Data") is provided "as is" without warranty of any kind either expressed implied or statutory. The user assumes the entire risk as to quality and performance of the Data. No guarantee of accuracy is granted nor is any responsibility for reliance thereon assumed. In no event shall the State of Maryland be liable for direct indirect incidental consequential or special damages of any kind. The State of Maryland does not accept liability for any damages or misrepresentation caused by inaccuracies in the Data or as a result to changes to the Data nor is there responsibility assumed to maintain the Data in any manner or form. The Data can be freely distributed as long as the metadata entry is not modified or deleted. Any data derived from the Data must acknowledge the State of Maryland in the metadata.

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. 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 (or 100-year) flood event, the 0.2-percent-annual-chance (or 500-year) 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. Date of last data update: 2025-07-21 This is official RLIS data. Contact Person: Alicia Wood alicia.wood@oregonmetro.gov 503-813-7561 RLIS Metadata Viewer: https://gis.oregonmetro.gov/rlis-metadata/#/details/1756 RLIS Terms of Use: https://rlisdiscovery.oregonmetro.gov/pages/terms-of-use

The National Flood Hazard Layer (NFHL) data incorporates all Digital Flood Insurance Rate Map(DFIRM) databases published by FEMA, and any Letters Of Map Revision (LOMRs) that have been issued against those databases since their publication date. The DFIRM Database is the digital, geospatial version of the flood hazard information shown on the published paper Flood Insurance Rate Maps(FIRMs). 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 NFHL data are derived from Flood Insurance Studies (FISs), previously published Flood Insurance Rate Maps (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 the Federal Emergency Management Agency (FEMA). The specifications for the horizontal control of DFIRM data are consistent with those required for mapping at a scale of 1:12,000. The NFHL data contain layers in the Standard DFIRM datasets except for S_Label_Pt and S_Label_Ld. The NFHL is available as State or US Territory data sets. Each State or Territory data set consists of all DFIRMs and corresponding LOMRs available on the publication date of the data set.

The FEMA Hazard Mitigation Assistance properties dataset contains the properties identified in the Hazard Mitigation Assistance (HMA) subapplications/subgrants from the NEMIS Mitigation and eGrants grants management systems.The Hazard Mitigation Assistance projects dataset contains Hazard Mitigation Assistance (HMA) subapplications/subgrants from the NEMIS Mitigation and eGrants grants management systems. For details on HMA subapplications/subgrants not captured in these systems, visit https://www.fema.gov/openfema-data-page/hma-subapplications-v2.The Hazard Mitigation Assistance Projects by NFIP CRS Communities dataset contains the communities identified in the Hazard Mitigation Assistance (HMA) subapplications/subgrants from the NEMIS Mitigation and eGrants grants management systems. For details on the communities identified in the Hazard Mitigation Assistance (HMA)The Hazard Mitigation Assistance Projects Financial Transactions dataset contains information on the HMA subgrants that have received financial transactions in NEMIS Mitigation and eGrants. Sensitive information, such as Personally Identifiable Information (PII), has been removed to protect privacy. The information in this dataset has been deemed appropriate for publication to empower public knowledge of mitigation activities and the nature of HMA grant programs. The Hazard Mitigation Grant Program Disaster Summaries dataset dataset contains disaster level financial information for FEMA’s Hazard Mitigation Grant Program (HMGP). The purpose of HMGP is to help communities implement hazard mitigation measures following a Presidential Major Disaster Declaration in the areas of the State, Tribe, or Territory requested by the Governor or Tribal Executive. The Hazard Mitigation Plan Statuses dataset contains data from the Hazard Mitigation Planning Program’s Mitigation Planning Portal (MPP). The MPP is an online platform for tracking and reporting on mitigation plans and related data elements across all ten Federal Emergency Management Agency (FEMA) Regions. MPP data provides insight into which jurisdictions are participating in mitigation plans across the country and what the status of those plans are. Additionally, MPP data provides dates to support tracking of when plans are approved and when they are set to expire which FEMA uses to monitor and support disaster preparedness and resilience.The Hazard Mitigation Assistance Subapplications dataset contains Hazard Mitigation Assistance (HMA) subapplications/subgrants from the FEMA Grants Outcomes (FEMA GO) system (FEMA’s new grants management system). FEMA GO started accepting Flood Mitigation Assistance (FMA) and Building Resilient Infrastructure and Communities (BRIC) subapplications in Fiscal Year 2020. The Hazard Mitigation Assistance Subapplications by NFIP CRS Communities dataset contains contains the communities identified in the Hazard Mitigation Assistance (HMA) subapplications/subgrants from the FEMA Grants Outcomes (FEMA GO) system (FEMA’s new grants management system). FEMA GO started accepting Flood Mitigation Assistance (FMA) and Building Resilient Infrastructure and Communities (BRIC) subapplications in Fiscal Year 2020.The Hazard Mitigation Assistance Subapplications Financial Transactions dataset contains the financial transactions for Hazard Mitigation Assistance (HMA) subgrants from the FEMA Grants Outcomes (FEMA GO) system (FEMA’s new grants management system). FEMA GO started accepting Flood Mitigation Assistance (FMA) and Building Resilient Infrastructure and Communities (BRIC) subapplications in Fiscal Year 2020. FEMA GO is projected to support the Hazard Mitigation Grant Program (HMGP) in Calendar Year 2023.The Hazard Mitigation Assistance Subapplication Project Site Inventories dataset contains contains information on the Project Site Inventories identified in the HMA subapplications/subgrants that have been submitted to or awarded in FEMA GO, as well as amendments made to the awarded subgrants. The Project Site Inventory contains information regarding the Building, Infrastructure/Utility/other, and/or Vacant Land proposed to be mitigated by the subapplication/subgrant. Sensitive information, such as Personally Identifiable Information (PII), has been removed to protect privacy.

The Digital Flood Insurance Rate Map (DFIRM) 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 DFIRM Database is derived from Flood Insurance Studies (FISs), previously published Flood Insurance Rate Maps (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 the Federal Emergency Management Agency (FEMA). The file is georeferenced to earth's surface using the UTM projection and coordinate system. The specifications for the horizontal control of DFIRM data files are consistent with those required for mapping at a scale of 1:12,000. This database was developed for the GRIMES County DFIRM project in 2008 by CF3R/Baker for FEMA Region 6.