Digital representation of addressable stream reaches is well advanced. However, despite the advances in representing river networks with the detailed attributes in high-resolution (e.g., NHDPlusV2), tools for geospatially representing dependencies of physical or infrastructural features to the river network generally are lacking. For example, information on riverine connectivity between reservoirs, diversions, and streamgages, is often manually developed for local water management and not widely available. However, approaches encoding information about connected or related features to river networks are emerging. The scope of such information potentially lies beyond sector-specific applications encouraging multi-disciplinary research. This session seeks presentations that describe new approaches for encoding digital hydro-connectivity and case studies in which existing methods are used or modified to express dependencies between river networks (or groundwater systems) and related features. Research highlighting new initiatives on water data development and integration to support hazard monitoring and infrastructure operation under extreme events are also encouraged.