Fema flood map software#
To do so, you will need GIS or mapping software that can read data in shapefile format.įEMA also offers a download of a KMZ (keyhole markup file zipped) file, which overlays the data in Google Earth™. This data can be used in most GIS applications to perform spatial analyses and for integration into custom maps and reports. Using the “Search All Products” on the MSC, you can download the NFHL data for a County or State in a GIS file format. You can also use the address search on the FEMA Flood Map Service Center (MSC) to view the NFHL data or download a FIRMette. For more information on available services, go to the NFHL GIS Services User Guide.
Fema flood map series#
Technical GIS users can also utilize a series of dedicated GIS web services that allow the NFHL database to be incorporated into websites and GIS applications.
Fema flood map full#
In the NFHL Viewer, you can use the address search or map navigation to locate an area of interest and the NFHL Print Tool to download and print a full Flood Insurance Rate Map (FIRM) or FIRMette (a smaller, printable version of a FIRM) where modernized data exists.
primary or secondary residence?).Or you you may view, download, and print current local digital effective flood hazard data in an ArcGIS map. When purchasing flood insurance, you should check who the underwriter and their stability, whether the policy meets the NFIP standards, double-check that your elevation certificate is filled out properly for your property (this can affect what you pay) and read your policy's declaration page to make sure the agent accurately captured your property (ex.
Lower Susquehanna Watershed, 02050306, 2014 ( web link)įor information about FEMA floodplains and the National Flood Insurance Program (NFIP), visit.Schuylkill Watershed, HUC 02040203, 2017 DRAFT ( web link).Chester County, Brandywine-Christina Watershed, 2017 ( web link).The Table of Contents for the full report is repeated at the beginning of each volume. The study is published in six volumes, with the final three volumes being flood profiles for streams in the COunty. The studies described in this report developed flood hazard data that will be used to establish actuarial flood insurance rates and to assist communities in efforts to implement sound floodplain management. This Flood Insurance Study (FIS) Report revises and updates information on the existence and severity of flood hazards for the study area. Each property is manually researched by an experienced Map Analyst or Certified Floodplain Manager. Ĭall your local municipality, FEMA's Map Specialist at (877) FEMA MAP (1-87), or Chester County at 61 for help with any questions regarding FEMA floodplains. See your home on the current FEMA Flood Map. You can also click on a box to see the two-foot contours if you are interested in the topography.įor more information behind the science of the 100-year flood and floodplains, visit this USGS webpage. Click on "TOC" and click on the "Flood Risk Mapping" to see the FEMA floodplain boundaries. To better understand the location of the FEMA floodplain boundary to your property boundary, you can use ChescoViews. A devastating rainstorm can occur and many properties outside the 100-year floodplain may be flooded in any given year. The FEMA map also does not imply that properties outside of the 100-year floodplain will never flood. A 100-year flood could occur twice in five years. It is more accurate to refer to it as a 1% annual chance of the area flooding in any given year. However, a 100-year flood is not something that occurs once every 100 years. FEMA chose a "standard size" storm to approximate the floodplain map boundaries, and that storm was the 100-year flood event. You are also welcome to call us at the Chester County Water Resources Authority at 61 or email us at with any questions.įEMA's mapping of floodplains approximates where floodwaters may rise, however even if the property is outside of a FEMA floodplain, it may still flood. Call FEMA Map Specialists at 1-877-FEMA-MAP. To view the new interactive online FEMA floodplain maps, visit their Map Service Center website and type in the street address for the property of interest. The Federal Emergency Management Agency updated the floodplain maps for portions of Chester County in 2017, and these maps went into effect on September 29, 2017. The floodplains shown on this mapping tool are those delineated on the Federal Emergency Management Agency's (FEMA) effective Flood Insurance Rate Map (FIRM or floodplain map) for Harris County that was adopted in 2007, as well as updates that have been made through a Letter of Map Revision (LOMR) since 2007.
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