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Scheduled Maintenance
New Datasets | Healthy Rivers Program Reaches (DWER-149) & Healthy Rivers Program Catchments (DWER-150) Nov 4, 2026 16:45-17:15 AWST
Please note that the following layers will be added to the SLIP Public Water Service on Wednesday 4th November 2026.
• Healthy Rivers Program Reaches (DWER-149)
• Healthy Rivers Program Catchments (DWER-150)
From Thursday morning, these layers will be available in the service and URL links will be updated on Data WA.
For links to related datasets please see below:
https://catalogue.data.wa.gov.au/group/slip-public-water-service
Please note the addition of this layer will change the WMS layer IDs, however the ESRI REST Service layer IDs will remain the same. For WMS getmap requests please always refer to the GetCapabilities XML for the correct layer IDs.
Please note: There will be an intermittent outage to the services while they are republished. There will be no outages to the maps, however the services will not be available in the maps while republishing.
Posted on Oct 27, 2026 - 08:21 AWST
• Healthy Rivers Program Reaches (DWER-149)
• Healthy Rivers Program Catchments (DWER-150)
From Thursday morning, these layers will be available in the service and URL links will be updated on Data WA.
For links to related datasets please see below:
https://catalogue.data.wa.gov.au/group/slip-public-water-service
Please note the addition of this layer will change the WMS layer IDs, however the ESRI REST Service layer IDs will remain the same. For WMS getmap requests please always refer to the GetCapabilities XML for the correct layer IDs.
Please note: There will be an intermittent outage to the services while they are republished. There will be no outages to the maps, however the services will not be available in the maps while republishing.
Posted on Oct 27, 2026 - 08:21 AWST
New Dataset | Millstream - Land Units Development (DBCA-094) Nov 4, 2026 16:45-17:15 AWST
Please note that the following layer will be added to the SLIP Public Environment Service on Wednesday 4th November 2026.
• Millstream - Land Units Development (DBCA-094)
From Thursday morning, these layers will be available in the service and URL links will be updated on Data WA.
For links to related datasets please see below:
https://catalogue.data.wa.gov.au/group/slip-public-environment-service
Please note the addition of this layer will change the WMS layer IDs, however the ESRI REST Service layer IDs will remain the same. For WMS getmap requests please always refer to the GetCapabilities XML for the correct layer IDs.
Please note: There will be an intermittent outage to the services while they are republished. There will be no outages to the maps, however the services will not be available in the maps while republishing.
Posted on Oct 27, 2026 - 08:34 AWST
• Millstream - Land Units Development (DBCA-094)
From Thursday morning, these layers will be available in the service and URL links will be updated on Data WA.
For links to related datasets please see below:
https://catalogue.data.wa.gov.au/group/slip-public-environment-service
Please note the addition of this layer will change the WMS layer IDs, however the ESRI REST Service layer IDs will remain the same. For WMS getmap requests please always refer to the GetCapabilities XML for the correct layer IDs.
Please note: There will be an intermittent outage to the services while they are republished. There will be no outages to the maps, however the services will not be available in the maps while republishing.
Posted on Oct 27, 2026 - 08:34 AWST
Modified Datasets | DWER Leschenault Estuary Seagrass Survey Layers Nov 11, 2026 16:45-17:15 AWST
Please note that the following DWER layers will be updated on Wednesday 11th November 2026. Details below:
• Leschenault Estuary Seagrass Survey - Points (DWER-104)
• Leschenault Estuary Seagrass Survey - Cover (DWER-105)
• Leschenault Estuary Seagrass Survey - Extent (DWER-106)
- This change consists of a schema and symbology update, with the inclusion of 2024 and 2025 survey data.
These layers are located in the SLIP Public Plants and Animals Service, as linked below:
https://catalogue.data.wa.gov.au/group/slip-public-plants-and-animals-service
Please note: There will be an intermittent outage to the services while they are republished. There will be no outages to the maps, however the services will not be available in the maps while republishing.
Posted on Oct 27, 2026 - 08:44 AWST
• Leschenault Estuary Seagrass Survey - Points (DWER-104)
• Leschenault Estuary Seagrass Survey - Cover (DWER-105)
• Leschenault Estuary Seagrass Survey - Extent (DWER-106)
- This change consists of a schema and symbology update, with the inclusion of 2024 and 2025 survey data.
These layers are located in the SLIP Public Plants and Animals Service, as linked below:
https://catalogue.data.wa.gov.au/group/slip-public-plants-and-animals-service
Please note: There will be an intermittent outage to the services while they are republished. There will be no outages to the maps, however the services will not be available in the maps while republishing.
Posted on Oct 27, 2026 - 08:44 AWST
Main Roads Open Data Update Notification – Transition to GDA2020 Nov 13, 2026 17:00 - Nov 16, 2026 00:00 AWST
Please note: Main Roads Open Data will be migrated from the Geocentric Datum of Australia 1994 (GDA94) to the Geocentric Datum of Australia 2020 (GDA2020) over the weekend of 13–15 November 2026, commencing at 5:00 PM AWST on Friday 13th November 2026, and continuing until midnight on Sunday 15th November 2026.
What Will Change
• Main Roads Open Data downloads will be provided in GDA2020 where the selected format supports the native dataset coordinate system.
• All Main Roads web services will be published in GDA2020, allowing them to display correctly as GDA2020 in desktop GIS applications.
• Datum transformations will be applied to web services to maintain alignment with GDA94-based web maps and services. This ensures consistency with Landgate web services and supports organisations that have not yet migrated to GDA2020.
What Open Data Users Will Need to Do
• Update ETL (Extract, Transform, Load) processes to handle Main Roads data in GDA2020.
• When publishing web services for use with WGS 1984 Web Mercator basemaps, apply the appropriate datum transformation (EPSG:9691 ArcGIS Server and EPSG:9690 for ArcGIS Online) to ensure alignment with Main Roads and Landgate web services.
See Main Roads Open Data Portal home page for more information - https://portal-mainroads.opendata.arcgis.com/
If you have questions about this transition, please contact the Open Data team at Main Roads.
Posted on Oct 27, 2026 - 16:12 AWST
What Will Change
• Main Roads Open Data downloads will be provided in GDA2020 where the selected format supports the native dataset coordinate system.
• All Main Roads web services will be published in GDA2020, allowing them to display correctly as GDA2020 in desktop GIS applications.
• Datum transformations will be applied to web services to maintain alignment with GDA94-based web maps and services. This ensures consistency with Landgate web services and supports organisations that have not yet migrated to GDA2020.
What Open Data Users Will Need to Do
• Update ETL (Extract, Transform, Load) processes to handle Main Roads data in GDA2020.
• When publishing web services for use with WGS 1984 Web Mercator basemaps, apply the appropriate datum transformation (EPSG:9691 ArcGIS Server and EPSG:9690 for ArcGIS Online) to ensure alignment with Main Roads and Landgate web services.
See Main Roads Open Data Portal home page for more information - https://portal-mainroads.opendata.arcgis.com/
If you have questions about this transition, please contact the Open Data team at Main Roads.
Posted on Oct 27, 2026 - 16:12 AWST