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GIS.NY.GOV

NYS ITS GIS Program Office

Geographic Information Systems Clearinghouse

GIS Data Set Details

Data Set Name Description Theme Metadata
Digital Q3 Flood Zone Data The Q3 Flood Data are derived from the Flood Insurance Rate Maps (FIRMs) published by the Federal Emergency Management Agency (FEMA). The file is georeferenced to the earth's surface using the Universal Transverse Mercator (UTM) projection and a zonal coordinate system (units in meters). Specifications for the horizontal control of Q3 Flood Data files are consistent with those required for mapping at a scale of 1:24000.  Emergency Services
Hazards
Hydrography
Watersheds/Water Supply
n/a

Supporting Documentation

FEMA Q3 Disclaimer

Map Notes: The FEMA Digital Q3 Flood Data displayed on this Web site is developed by scanning the existing Flood Insurance Rate Map (FIRM) hardcopy and capturing a thematic overlay of flood risks. Digital Q3 Flood Data files contain only certain features from the FIRM hardcopy in effect at the time of scanning and do not replace the existing FIRM hardcopy maps. The maps displayed on this site should be considered an advisory tool for general hazard awareness, education, and flood plain management. The flood hazard maps displayed on this site are not the legal document to be used when making a single site flood hazard determination.

These materials are provided "AS IS" without warranty of any kind, either express or implied, including but not limited to, the implied warranties of merchantability or fitness for a particular purpose. Use of these materials constitutes acceptance of this disclaimer of liability. The authors of this software have used their best efforts in its preparation. These efforts include the development, research, and testing of the theories and programs to determine their effectiveness. However, neither the authors nor the U.S. Government nor any agency thereof, nor any of their employees, nor any of their contractors, subcontractors, or their employees, make any warranty express or implied, or assume any legal liability or responsibility for the accuracy, completeness, or usefulness of any information apparatus, algorithm, product, or process disclosed, or represent that its use would not infringe on privately owned rights.


The GIS data sets for each county are available in decimal degree geographic coordinates (latitude, longitude) referencing NAD 27 in both MapInfo and ESRI formats.

Files available to the Public
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Albany County
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Allegany County
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Broome County
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Cattaraugus County
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Cayuga County
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Chautauqua County
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Chemung County
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Chenango County
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Columbia County
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Cortland County
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Delaware County
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Dutchess County
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Erie County
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Genesee County
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Herkimer County
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Jefferson County
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Livingston County
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Madison County
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Monroe County
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Nassau County
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New York City
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Niagara County
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Oneida County
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Onondaga County
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Ontario County
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Orange County
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Oswego County
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Rensselaer County
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Rockland County
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Saratoga County
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Steuben County
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Suffolk County
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Sullivan County
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Tioga County
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Tompkins County
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Ulster County
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Westchester County
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Contact Information:

Brian Shumon
26 Federal Plaza
Region II- Room 1311
New York, New York  10278

PH: 212-680-3631
FAX: 212-680-3602
brian.shumon@dhs.gov E-Mail