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gSSURGO-based Floodplain Maps of the United States

By Venkatesh Mohan Merwade, Nikhil Sangwan, Liuying Du

This series provides shapefiles showing the natural floodplain for the United States. These floodplain polygons are extracted from the gSSURGO soil data from the Natural Resources Conservation Service (NRCS).

Listed in Datasets

Version 1.0 - published on 18 Apr 2017 doi:10.4231/R7F769KQ - cite this Archived on 19 May 2017

Licensed under Attribution 3.0 Unported

Description

US national wide gSSURGO based floodplain maps are developed by using Gridded Soil Survey Geographic (gSSURGO) database. Specifically, the SSURGO map units are joined to certain key attributes in the muaggatt and component tables. After joining the spatial data to ‘muaggatt’ and ‘component’ tables, map unit polygons are selected by the following two queries: (1) "geomdesc" LIKE '%flood%' AND "comppct_r" >= 85) OR "taxsubgrp" LIKE '%fluv%'; (2) “muname" ='Water' OR "flodfreqdcd" in ('Rare', 'Occasional', 'Frequent', 'Very Frequent')". The result from this query, which is a polygon feature class or shapefile, is then dissolved to remove any area less than 15000 square meters are removed. More details about this approach can be found in the following publication: Sangwan, Nikhil, and V. Merwade, A faster and economical approach to floodplain mapping by using soil information, Journal of American Water Resources Association, 51(5): 1286-1304. (2015). doi: 10.1111/1752-1688.12306

The following map shows a preview of the floodplain dataset. You can zoom in to your area of interest for more details. To download data, please select a state from the dropdown list or scroll down to the Content List. After you are redirected to a separate page for the selected state, you can download the data from the Supporting Docs tab.

Content List

  • gSSURGO-based Floodplain Maps of Alabama

    This dataset provides a shapefile showing the natural floodplain for Alabama. These floodplain polygons for the entire state are extracted from the gSSURGO soil data from the Natural Resources Conservation Service (NRCS).

  • gSSURGO-based Floodplain Maps of Arizona

    This dataset provides a shapefile showing the natural floodplain for Arizona. These floodplain polygons for the entire state are extracted from the gSSURGO soil data from the Natural Resources Conservation Service (NRCS).

  • gSSURGO-based Floodplain Maps of Arkansas

    This dataset provides a shapefile showing the natural floodplain for Arkansas. These floodplain polygons for the entire state are extracted from the gSSURGO soil data from the Natural Resources Conservation Service (NRCS).

  • gSSURGO-based Floodplain Maps of California

    This dataset provides a shapefile showing the natural floodplain for California. These floodplain polygons for the entire state are extracted from the gSSURGO soil data from the Natural Resources Conservation Service (NRCS).

  • gSSURGO-based Floodplain Maps of Colorado

    This dataset provides a shapefile showing the natural floodplain for Colorado. These floodplain polygons for the entire state are extracted from the gSSURGO soil data from the Natural Resources Conservation Service (NRCS).

  • gSSURGO-based Floodplain Maps of Connecticut

    This dataset provides a shapefile showing the natural floodplain for Connecticut. These floodplain polygons for the entire state are extracted from the gSSURGO soil data from the Natural Resources Conservation Service (NRCS).

  • gSSURGO-based Floodplain Maps of Delaware

    This dataset provides a shapefile showing the natural floodplain for Delaware. These floodplain polygons for the entire state are extracted from the gSSURGO soil data from the Natural Resources Conservation Service (NRCS).

  • gSSURGO-based Floodplain Maps of Florida

    This dataset provides a shapefile showing the natural floodplain for Florida. These floodplain polygons for the entire state are extracted from the gSSURGO soil data from the Natural Resources Conservation Service (NRCS).

  • gSSURGO-based Floodplain Maps of Georgia

    This dataset provides a shapefile showing the natural floodplain for Georgia. These floodplain polygons for the entire state are extracted from the gSSURGO soil data from the Natural Resources Conservation Service (NRCS).

  • gSSURGO-based Floodplain Maps of Hawaii

    This dataset provides a shapefile showing the natural floodplain for Hawaii. These floodplain polygons for the entire state are extracted from the gSSURGO soil data from the Natural Resources Conservation Service (NRCS).

  • gSSURGO-based Floodplain Maps of Idaho

    This dataset provides a shapefile showing the natural floodplain for Idaho. These floodplain polygons for the entire state are extracted from the gSSURGO soil data from the Natural Resources Conservation Service (NRCS).

  • gSSURGO-based Floodplain Maps of Illinois

    This dataset provides a shapefile showing the natural floodplain for Illinois. These floodplain polygons for the entire state are extracted from the gSSURGO soil data from the Natural Resources Conservation Service (NRCS).

  • gSSURGO-based Floodplain Maps of Indiana

    This dataset provides a shapefile showing the natural floodplain for Indiana. These floodplain polygons for the entire state are extracted from the gSSURGO soil data from the Natural Resources Conservation Service (NRCS).

  • gSSURGO-based Floodplain Maps of Iowa

    This dataset provides a shapefile showing the natural floodplain for Iowa. These floodplain polygons for the entire state are extracted from the gSSURGO soil data from the Natural Resources Conservation Service (NRCS).

  • gSSURGO-based Floodplain Maps of Kansas

    This dataset provides a shapefile showing the natural floodplain for Kansas. These floodplain polygons for the entire state are extracted from the gSSURGO soil data from the Natural Resources Conservation Service (NRCS).

  • gSSURGO-based Floodplain Maps of Kentucky

    This dataset provides a shapefile showing the natural floodplain for Kentucky. These floodplain polygons for the entire state are extracted from the gSSURGO soil data from the Natural Resources Conservation Service (NRCS).

  • gSSURGO-based Floodplain Maps of Louisiana

    This dataset provides a shapefile showing the natural floodplain for Louisiana. These floodplain polygons for the entire state are extracted from the gSSURGO soil data from the Natural Resources Conservation Service (NRCS).

  • gSSURGO-based Floodplain Maps of Maine

    This dataset provides a shapefile showing the natural floodplain for Maine. These floodplain polygons for the entire state are extracted from the gSSURGO soil data from the Natural Resources Conservation Service (NRCS).

  • gSSURGO-based Floodplain Maps of Maryland

    This dataset provides a shapefile showing the natural floodplain for Maryland. These floodplain polygons for the entire state are extracted from the gSSURGO soil data from the Natural Resources Conservation Service (NRCS).

  • gSSURGO-based Floodplain Maps of Massachusetts

    This dataset provides a shapefile showing the natural floodplain for Massachusetts. These floodplain polygons for the entire state are extracted from the gSSURGO soil data from the Natural Resources Conservation Service (NRCS).

  • gSSURGO-based Floodplain Maps of Michigan

    This dataset provides a shapefile showing the natural floodplain for Michigan. These floodplain polygons for the entire state are extracted from the gSSURGO soil data from the Natural Resources Conservation Service (NRCS).

  • gSSURGO-based Floodplain Maps of Minnesota

    This dataset provides a shapefile showing the natural floodplain for Minnesota. These floodplain polygons for the entire state are extracted from the gSSURGO soil data from the Natural Resources Conservation Service (NRCS).

  • gSSURGO-based Floodplain Maps of Mississippi

    This dataset provides a shapefile showing the natural floodplain for Mississippi. These floodplain polygons for the entire state are extracted from the gSSURGO soil data from the Natural Resources Conservation Service (NRCS).

  • gSSURGO-based Floodplain Maps of Missouri

    This dataset provides a shapefile showing the natural floodplain for Missouri. These floodplain polygons for the entire state are extracted from the gSSURGO soil data from the Natural Resources Conservation Service (NRCS).

  • gSSURGO-based Floodplain Maps of Montana

    This dataset provides a shapefile showing the natural floodplain for Montana. These floodplain polygons for the entire state are extracted from the gSSURGO soil data from the Natural Resources Conservation Service (NRCS).

  • gSSURGO-based Floodplain Maps of Nebraska

    This dataset provides a shapefile showing the natural floodplain for Nebraska. These floodplain polygons for the entire state are extracted from the gSSURGO soil data from the Natural Resources Conservation Service (NRCS).

  • gSSURGO-based Floodplain Maps of Nevada

    This dataset provides a shapefile showing the natural floodplain for Nevada. These floodplain polygons for the entire state are extracted from the gSSURGO soil data from the Natural Resources Conservation Service (NRCS).

  • gSSURGO-based Floodplain Maps of New Hampshire

    This dataset provides a shapefile showing the natural floodplain for New Hampshire. These floodplain polygons for the entire state are extracted from the gSSURGO soil data from the Natural Resources Conservation Service (NRCS).

  • gSSURGO-based Floodplain Maps of New Jersey

    This dataset provides a shapefile showing the natural floodplain for New Jersey. These floodplain polygons for the entire state are extracted from the gSSURGO soil data from the Natural Resources Conservation Service (NRCS).

  • gSSURGO-based Floodplain Maps of New Mexico

    This dataset provides a shapefile showing the natural floodplain for New Mexico. These floodplain polygons for the entire state are extracted from the gSSURGO soil data from the Natural Resources Conservation Service (NRCS).

  • gSSURGO-based Floodplain Maps of New York

    This dataset provides a shapefile showing the natural floodplain for New York. These floodplain polygons for the entire state are extracted from the gSSURGO soil data from the Natural Resources Conservation Service (NRCS).

  • gSSURGO-based Floodplain Maps of North Carolina

    This dataset provides a shapefile showing the natural floodplain for North Carolina. These floodplain polygons for the entire state are extracted from the gSSURGO soil data from the Natural Resources Conservation Service (NRCS).

  • gSSURGO-based Floodplain Maps of North Dakota

    This dataset provides a shapefile showing the natural floodplain for North Dakota. These floodplain polygons for the entire state are extracted from the gSSURGO soil data from the Natural Resources Conservation Service (NRCS).

  • gSSURGO-based Floodplain Maps of Ohio

    This dataset provides a shapefile showing the natural floodplain for Ohio. These floodplain polygons for the entire state are extracted from the gSSURGO soil data from the Natural Resources Conservation Service (NRCS).

  • gSSURGO-based Floodplain Maps of Oklahoma

    This dataset provides a shapefile showing the natural floodplain for Oklahoma. These floodplain polygons for the entire state are extracted from the gSSURGO soil data from the Natural Resources Conservation Service (NRCS).

  • gSSURGO-based Floodplain Maps of Oregon

    This dataset provides a shapefile showing the natural floodplain for Oregon. These floodplain polygons for the entire state are extracted from the gSSURGO soil data from the Natural Resources Conservation Service (NRCS).

  • gSSURGO-based Floodplain Maps of Pennsylvania

    This dataset provides a shapefile showing the natural floodplain for Pennsylvania. These floodplain polygons for the entire state are extracted from the gSSURGO soil data from the Natural Resources Conservation Service (NRCS).

  • gSSURGO-based Floodplain Maps of Rhode Island

    This dataset provides a shapefile showing the natural floodplain for Rhode Island. These floodplain polygons for the entire state are extracted from the gSSURGO soil data from the Natural Resources Conservation Service (NRCS).

  • gSSURGO-based Floodplain Maps of South Carolina

    This dataset provides a shapefile showing the natural floodplain for South Carolina. These floodplain polygons for the entire state are extracted from the gSSURGO soil data from the Natural Resources Conservation Service (NRCS).

  • gSSURGO-based Floodplain Maps of South Dakota

    This dataset provides a shapefile showing the natural floodplain for South Dakota. These floodplain polygons for the entire state are extracted from the gSSURGO soil data from the Natural Resources Conservation Service (NRCS).

  • gSSURGO-based Floodplain Maps of Tennessee

    This dataset provides a shapefile showing the natural floodplain for Tennessee. These floodplain polygons for the entire state are extracted from the gSSURGO soil data from the Natural Resources Conservation Service (NRCS).

  • gSSURGO-based Floodplain Maps of Texas

    This dataset provides a shapefile showing the natural floodplain for Texas. These floodplain polygons for the entire state are extracted from the gSSURGO soil data from the Natural Resources Conservation Service (NRCS).

  • gSSURGO-based Floodplain Maps of Utah

    This dataset provides a shapefile showing the natural floodplain for Utah. These floodplain polygons for the entire state are extracted from the gSSURGO soil data from the Natural Resources Conservation Service (NRCS).

  • gSSURGO-based Floodplain Maps of Vermont

    This dataset provides a shapefile showing the natural floodplain for Vermont. These floodplain polygons for the entire state are extracted from the gSSURGO soil data from the Natural Resources Conservation Service (NRCS).

  • gSSURGO-based Floodplain Maps of Virginia

    This dataset provides a shapefile showing the natural floodplain for Virginia. These floodplain polygons for the entire state are extracted from the gSSURGO soil data from the Natural Resources Conservation Service (NRCS).

  • gSSURGO-based Floodplain Maps of Washington

    This dataset provides a shapefile showing the natural floodplain for Washington. These floodplain polygons for the entire state are extracted from the gSSURGO soil data from the Natural Resources Conservation Service (NRCS).

  • gSSURGO-based Floodplain Maps of West Virginia

    This dataset provides a shapefile showing the natural floodplain for West Virginia. These floodplain polygons for the entire state are extracted from the gSSURGO soil data from the Natural Resources Conservation Service (NRCS).

  • gSSURGO-based Floodplain Maps of Wisconsin

    This dataset provides a shapefile showing the natural floodplain for Wisconsin. These floodplain polygons for the entire state are extracted from the gSSURGO soil data from the Natural Resources Conservation Service (NRCS).

  • gSSURGO-based Floodplain Maps of Wyoming

    This dataset provides a shapefile showing the natural floodplain for Wyoming. These floodplain polygons for the entire state are extracted from the gSSURGO soil data from the Natural Resources Conservation Service (NRCS).

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Notes

This floodplain map was created with Esri ArcGIS 10.3.1, and revised in March 2016. It is in GCS North American 1983 coordinate system.