Hydrographic Centerlines for New South Wales Watercourses

A geospatial dataset from Spatial Services (DCS) defining the centerlines of watercourses in New South Wales, Australia. It includes natural and artificial features such as canals, drains, spillways, and tunnels, with attributes for names, perennial status, and flow direction. The service is scheduled for retirement and users are advised to transition to a new GDA2020-aligned version.

Use Cases

• Modeling water flow and connectivity based on hydro line centerlines and flow direction attributes.
• Mapping and classifying artificial water infrastructure such as canals, drains, and spillways.
• Analyzing the perennial status of watercourses for environmental and water security assessments.
• Maintaining topological continuity in hydrological networks using connector features.

Strengths

• Includes specific feature classes like natural watercourse, canal-drain, and tunnel-siphon.
• Contains key descriptive attributes such as hydro line name, perennial status, and flow direction.
• Managed by an authoritative government source, Spatial Services (DCS).

Limitations

• The service is scheduled for retirement, requiring users to transition to a new version.
• The spatial reference (WGS 84 ≈ GDA94) may cause misalignment in modern GDA2020 environments.
• Column-level documentation and sample data are unavailable, making field semantics unclear.

Provenance

Source

Spatial Services (DCS), New South Wales government.

Collection Method

Likely digitized from topographic surveys.

Time Range

null

Freshness

Last updated 2026-04-08 19:45:12.032012; freshness should be verified.

Geography

New South Wales, Australia