Description: These are the surface conveyance lines that were topographically derived:
FlowAcc <>0 AND FlowAcc is not Null AND SourceClass = 'accumulated_surface_lines'
original source = \\ws18325\Stormwater D\RiskModel\RiskAssessment\ConveyanceRoute\DrainageReserve.gdb\StormDrainConveyance
Status field:
Non = not a drainageway
Potential = potential drainageway
Confirmed = QC'ed and confirmed