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Floodplain General Structures
District of Columbia —
Location and attributes for flood control structures shown on the flood profile and FIRM. This table is required whenever hydraulic structures are shown in the flood... -
Federal
Flood Insurance Rate Maps, Flood Insurance Study
Department of Homeland Security —
The NFHL FIRMs and FIS are the official regulatory products for the NFIP. -
University
Sept 2013 NFHL Base Flood Elevation
Earth Data Analysis Center, University of New Mexico —
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... -
University
Sept 2013 NFHL Transportation
Earth Data Analysis Center, University of New Mexico —
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... -
Floodplain Cross Sections
District of Columbia —
Location and attributes for cross section lines in the area covered by the FIRM. This layer must contain all cross sections in a model, not just the lettered cross... -
University
2013 FEMA Letter of Map Revision
Earth Data Analysis Center, University of New Mexico —
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... -
Floodplains
District of Columbia —
The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Management Agency (FEMA), and... -
University
2013 FEMA Water Area
Earth Data Analysis Center, University of New Mexico —
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... -
University
Sept 2013 NFHL Flood Hazard Areas
Earth Data Analysis Center, University of New Mexico —
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... -
University
Sept 2013 NFHL Levee Information
Earth Data Analysis Center, University of New Mexico —
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... -
Floodplains Outline from 2023
District of Columbia —
The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Management Agency (FEMA), and... -
University
Truth or Consequences Special Flood Hazard Areas (SFHA)
Earth Data Analysis Center, University of New Mexico —
This vector dataset depicts the 1% annual flood boundary (otherwise known as special flood hazard area or 100 year flood boundary) for its specified area. The data... -
State
DFIRM X-Sections
Vermont Center for Geographic Information —
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... -
Federal
Letter of Final Determination
Department of Homeland Security —
A Letter of Final Determination (LFD) is a letter FEMA mails to the Chief Executive Officer of a community stating that a new or updated Flood Insurance Rate Map... -
State
MD iMAP: Effective FEMA Floodplain
State of Maryland —
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...