Named Watercourses in New South Wales, Australia

Named Watercourse defines the centreline of a named water course in New South Wales as a single feature. It is an aggregation of Hydro Line parts and provides the NSW component of the Australian Hydrological Geospatial Fabric. Spatial Services continuously updates this theme with information sourced from stakeholders, data verification, and aerial imagery.

Use Cases

• Manage state and local government assets based on defined watercourse locations.
• Support emergency management response and recovery efforts based on hydrology data.
• Inform natural resource assessment and environmental planning based on watercourse features.
• Provide foundational data for climate change studies based on hydrological geospatial fabric.
• Enable hazard mitigation and disaster risk reduction based on watercourse mapping.

Strengths

• Aligned with the national GDA2020 standard, improving accuracy and compatibility.
• Continuously updated from aerial imagery, elevation data, and stakeholder sources.
• Forms a critical input to the Australian Water Resources Information System.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data accuracy ranges from 1:500 scale, indicating variable precision.

Provenance

Source

Spatial Services, a business unit of the Department of Customer Service NSW.

Collection Method

Aggregated from Hydro Line parts, verified from internal and external databases, and updated from aerial imagery.

Freshness

Last updated 2026-05-18 00:00:27.441756; update frequency is listed as 'Other'.

Geography

New South Wales, Australia