{ "culture": "en-US", "name": "LetterOfMapRevisionBoundaries", "guid": "791F5F7F-3419-44E7-A7FF-466D0C49F18A", "catalogPath": "", "snippet": "This is an update of the digital FIRM information in the state of Idaho. This feature class shows areas depicting a Letter of Map Revision (LOMR) boundary.", "description": "

This is an update of the digital\nFIRM information in the state of Idaho. \nThis feature class shows areas depicting a Letter of Map Revision (LOMR)\nboundary.  The FIRM is the basis for\nfloodplain management, mitigation, and insurance activities for the National Flood\nInsurance Program (NFIP). Insurance applications include enforcement of the mandatory\npurchase requirement of the Flood Disaster Protection Act, which "... requires the\npurchase of flood insurance by property owners who are being assisted by Federal programs or by\nFederally supervised, regulated or insured agencies or institutions in the acquisition or\nimprovement of land facilities located or to be located in identified areas having special\nflood hazards," Section 2 (b) (4) of the Flood Disaster Protection Act of 1973. In\naddition to the identification of Special Flood Hazard Areas (SFHAs), the risk zones shown on\nthe FIRMs are the basis for the establishment of premium rates for flood coverage\noffered through the NFIP.<\/p>\n\n

This Database presents the flood\nrisk information depicted on the FIRM in a digital format suitable for use in\nelectronic mapping applications. This database has been created by digitizing\ndata from georeferenced paper FIRM maps in the Idaho counties specified by this\nproject.  This data should be used as a\nreference layer, not as an authoritative source.<\/p>\n\n

 <\/p>\n\n

The Flood Insurance Rate Map\n(FIRM) depicts flood risk information and supporting data used to develop the\nrisk data. The primary risk classifications used are the\n1-percent-annual-chance flood event (A or AE) and the 0.2-percent-annual-\nchance flood event (X). The FIRM data can be derived from Flood Insurance\nStudies (FISs) and previously published Flood Insurance Rate Maps (FIRMs). The\nFISs and FIRMs are published by the Federal Emergency Management Agency (FEMA).\nThis database has been created by digitizing data from georeferenced paper FIRM\nmaps and adding information from FIS where available. All FIRMs were\ngeoreferenced at a 1:4000 scale or finer. This data should be used as a\nreference layer, not as an authoritative source. <\/p>\n\n

 <\/p>\n\n

Section 11 of FEMA's "Flood\nInsurance Rate Map (FIRM) Database Technical Reference: Preparing Flood\nInsurance Rate Map Databases (Nov. 2022)" document contains a detailed\ndescription of each attribute code and a reference to other relevant information.<\/p>\n\n

 <\/p>\n\n

https://www.fema.gov/flood-maps/guidance-reports/guidelines-standards/technical-references-flood-risk-analysis-and-mapping<\/a>
<\/p>\n\n

 <\/p>\n\n

https://www.fema.gov/sites/default/files/documents/fema_firm-database-technical-reference_112022.pdf<\/a>
<\/p>

<\/span><\/p><\/div>", "summary": "This is an update of the digital FIRM information in the state of Idaho. This feature class shows areas depicting a Letter of Map Revision (LOMR) boundary.", "title": "Letter of Map Revision Boundaries", "tags": [ "FEMA Flood Hazard Zone", "Special Flood Hazard Area", "Digital Flood Insurance Rate Map", "NFIP", "Base Flood Elevation", "SFHA", "Flood Insurance Rate Map", "FIRM", "Floodway" ], "type": "Map Service", "typeKeywords": [ "ArcGIS", "ArcGIS Server", "Data", "Map Service", "Service" ], "thumbnail": "thumbnail/thumbnail.png", "url": "", "extent": [ [ -117.034567492949, 42.6795194138044 ], [ -110.744855852086, 46.8433324455492 ] ], "minScale": 0, "maxScale": 1.7976931348623157E308, "spatialReference": "NAD_1983_Idaho_TM", "accessInformation": "FEMA, IDWR, Custer County, Idaho", "licenseInfo": "

The hardcopy FIRM and the accompanying FISs are the official\ndesignation of SFHAs and Base Flood Elevations (BFEs) for the NFIP. For the\npurposes of the NFIP, changes to the flood risk information published by FEMA\nmay only be performed by FEMA and through the mechanisms established in the\nNFIP regulations (44 CFR Parts 59-78). These digital data are produced in\nconjunction with the hardcopy FIRMs and generally match the hardcopy map\nexactly. However, the hardcopy flood maps and flood profiles are the\nauthoritative documents for the NFIP. Acknowledgement of FEMA would be\nappreciated in products derived from these data.<\/p><\/p><\/div>", "portalUrl": "" }