Main Roads Open Data Update Notification – March 2025

Scheduled for Mar 20, 15:00 - 17:00 AWST

Scheduled

Please note: Main Roads WA updates the drainage asset data annually. The latest drainage data will be updated on Friday 20 March 2026, 3-5pm. This update will include a new Open Drain layer and flow directions. The following datasets will be temporarily unavailable during the change window.

• Drainage Pipes – New data and adding flow directions
• Drainage Pits – New data
• Drainage Sump – New data
• Drainage Headwalls – New data and symbology change
• Drainage Open Drain – NEW DATASET with flow directions
See Main Roads Open Data portal front page for the latest announcement - https://portal-mainroads.opendata.arcgis.com/

If you have questions or feedback about these updates, please contact the Open Data team at Main Roads WA.

Posted Mar 13, 2026 - 12:48 AWST

This scheduled maintenance affects: Data WA (Data WA Catalogue).