Alabama Extension Water Quality Home Page Hydrologic Data
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Data Attributes

Dataset Confirmation:

Select the dataset from the list to Download.

HUC Basin
  31502 - Constructed Ponds -- 15  Features covering 707.4 ac.
    File Size: 9.93 KB

31502 - HUC12 -- 165  Features covering 5.04982e+06 ac.
    File Size: 999 KB

31502 - Islands -- 73  Features covering 3533.1 ac.
    File Size: 35.9 KB

31502 - NWI -- 15454  Features covering 390706 ac.
    File Size: 19.3 MB

31502 - Streams -- 13967  Features covering 0 ac.
    File Size: 3.91 MB

31502 - Water Bodies -- 1598  Features covering 43878.3 ac.
    File Size: 575 KB

31502 - Wetlands -- 184  Features covering 62407.6 ac.
    File Size: 255 KB
 

 
Alabama - National Hydrologic Data
All data projected to
  • Universal Transverse Mercator (UTM) coordinates
  • Zone 16 N
  • WGS84 Datum and Spheroid
Vector Thematic Data
Water Bodies: Open water reaches larger than 0.5 acres..
HUC12: Hydrologic Unit Code watersheds at the 12 digit level.
Constructed ponds : Open water structures larger than 0.5 acres.
Wetlands: NHD recognized wetlands, not subclassified
NWI: USFWS National Wetlands Inventory data with Cowardin classes.
Islands
Streams: linear features comprising a drainage network.