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Published byEdith Robbins Modified over 8 years ago
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Tennessee Conflation Issues
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Feature Classification Conflation of ReachCodes Stopping at state edge NHDStatus table NHDProccessingParameter table
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A Stream goes under a road the Ftype is Undergound Conduit
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The red is underground Conduit
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On the Topo map a Stream ends at a depression
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They called it a Conector
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They coded all Streams perennial because the NHD 24K looked like this
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24K NHDAfter Conflation Conflation problems They do not have any 1p or p1 in the ReachCrossReference table
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All the new ReachCodes are negative
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They Stopped Conflation at the State Boundary
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The black ReachCodes are NHD and the blue ReachCodes are Tennessee Conflated ReachCodes
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The black ReachCodes are NHD and the blue ReachCodes are Tennessee Conflated ReachCodes
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All These features need to be added to the NHDStatus table as Modify Geometry
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