20210302 10241100 1.0 TRUE StormDrainConveyance - derived These are the surface conveyance lines that were topographically derived: FlowAcc <>0 AND FlowAcc is not Null AND SourceClass = 'accumulated_surface_lines' original source = Stormwater  D\RiskModel\RiskAssessment\ConveyanceRoute\DrainageReserve.gdb\StormDrainConveyance Status field: Non = not a drainageway Potential = potential drainageway Confirmed = QC'ed and confirmed City of Portland BES