LIST Hydrographic Line depicts all line features in the hydrographic themes including rivers, coastline, shoreline of lakes. It contains attributes that allow lines to be delivered in separate layers and with attributes. Some lines, associated with Dam 2Ds, Rapid 2Ds, Submerged Trees, Submerged Reefs and Land, will not be replicated into separate data sets.
Hydrological barrier is topologically consistent feature in hydrological network. Hydrological Crossing points are critical in the identification of obstructions, diversion and storage water for the hydrological enforcement of elevation models
