Healthy Waterways Strategy 2018 Catchment and Subcatchment Boundaries

Encompassing spatial boundaries for 5 catchments and 69 sub-catchments within the Melbourne Water operating region, created for the Healthy Waterways Strategy 2018. It updates the 2008 Regional River Health Strategy management units and is derived from an University of Melbourne sub-catchments layer with 16,346 polygon catchments.

Use Cases

• Analyze spatial relationships between the 5 catchments (Werribee, Maribyrnong, Yarra, Dandenong, Westernport) and 69 sub-catchments for environmental planning.
• Map sub-catchment boundaries to report on targets and performance objectives related to the Healthy Waterways Strategy.
• Compare this dataset's 69 sub-catchment polygons with the 2008 Regional River Health Strategy management units to assess updates.
• Use the catchment and sub-catchment polygons for geospatial analysis of water management and river health indicators.

Strengths

• Defines 5 distinct catchment regions and 69 sub-catchment polygons for spatial analysis.
• Updates a previous 2008 strategy layer, providing a more recent geospatial framework.
• Derived from a detailed source layer containing 16,346 polygon catchments.

Limitations

• The dataset's catchment polygons are noted to be similar but not exactly the same as Melbourne Water's internal dataset, indicating potential inconsistencies.
• The author explicitly disclaims guarantees on data accuracy or completeness, placing verification responsibility on the user.
• No specific row count, column details, or sample data are provided to assess the dataset's structure.

Provenance

Source

Melbourne Water Corporation via the Melbourne Water Open Data Hub.

Collection Method

Created by merging sub-catchments from the University of Melbourne's DCI (Directly Connected Imperviousness) layer.

Time Range

Associated with the Healthy Waterways Strategy 2018; updates a layer from 2008.

Freshness

Last updated March 20, 2026.

Geography

Melbourne Water operating region in Australia, including Werribee, Maribyrnong, Yarra, Dandenong, and Westernport catchments.