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Description: <DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>SubTypes of NHDFlowline</SPAN></P><P><SPAN>SubType Description Definition</SPAN></P><P><SPAN>334 Connector Known, but unspecific, connection between two nonadjacent network segments.</SPAN></P><P><SPAN>336 CanalDitch Artificial open waterway constructed to transport water, to irrigate or drain land, to connect two or more bodies of water, or to serve as a waterway for watercraft.</SPAN></P><P><SPAN>420 Underground Conduit Underground passage of surface water.</SPAN></P><P><SPAN>428 Pipeline Closed conduit with pumps, valves, and control devices, for conveying fluids, gases, or finely divided solids.</SPAN></P><P><SPAN>460 StreamRiver Body of flowing water.</SPAN></P><P><SPAN>468 Drainageway A drainageway is a watercourse that conveys, or is likely to convey water but lacks a clearly defined channel or banks differentiating it from an ephemeral stream/river. Drainageways typically convey water for limited periods of time and do not carry perennial flow. Drainageways may follow natural topographic flow paths or constructed or human-made flow paths.</SPAN></P><P><SPAN>558 ArtificialPath Abstraction to facilitate hydrologic modeling through open water bodies and along coastal and Great Lakes shorelines and to act as a surrogate for lakes and other water bodies.</SPAN></P><P><SPAN>566 Coastline Line that follows the main outline of the land, including bays, but crosses rivers at</SPAN></P></DIV></DIV></DIV>

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