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.
|Copyright||Copyright may apply. Please check the source for more information.|
|Regions||North America, Samoa|
|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|
|Last updated||2 Apr 2017 ago|
|Last checked||1 Sep 2018 ago|