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  • Added 19 Sep 2016
  • Updated 02 Apr 2017

Location and attributes for hydrography features shown on FIRM as areas.

The S_Wtr_Ar table contains information about surface water area features. A spatial file with location information also corresponds with this data table. The spatial elements representing surface water area features are polygons. Normally lakes, ponds and other wide bodies of water will be represented as polygons. The main purpose of the S_Wtr_Ar table is to provide a cartographic depiction of the areal surface water features for visual interpretation of the mapping data. As a result, the method for structuring surface water features as polygons is very flexible. This information is used in the Transect Locator Map and the FIRM Panel Index in the FIS report, as well as the FIRM panels.

This layer is a component of National Flood Hazard Layer.

Information

Copyright Copyright may apply. Please check the source for more information.
RegionsNorth America, Samoa

Technical Details

Layer ID 25611
Data type Vector polygon
Feature count 733504 (incl. 6 with empty or null geometries)
Attributes WTR_NM, VERSION_ID, GFID, SHOWN_FIRM, WTR_AR_ID, DFIRM_ID, SOURCE_CIT, SHOWN_INDX
Services Vector Query API

History

SourceNone
Last updated 2 Apr 2017 ago
Last checked 1 Sep 2018 ago
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