06/08/2026
🚨 DID LOGAN COUNCIL MAP RAINWATER AS CREEK FLOODING🚨
Council have updated their flood page today.
They are now proposing an investigation to determine whether some mapped “creeks” are actually overland flow — rainwater running across the ground. 🌧️➡️🌊
But here’s the problem:
⚠️ The investigation will not be completed until 2027
⚠️ It will happen after the proposed TLPI is progressed
⚠️ Any changes must then wait for a future planning instrument
With the new Logan Plan not expected until around 2030, residents could be waiting up to four more years before corrected mapping reaches property reports, planning controls and potentially insurance assessments.
Meanwhile, families may continue paying thousands for flood studies, engineering reports and extra Council fees that may never have been necessary.
And why is downstream also not being remodelled as part of this process?
If creek flows have been overstated upstream, Council may also need to reconsider downstream river flood levels.
The investigation will examine how to:
✅ Separate overland flow from creek flooding
✅ Decide where creek mapping should start and stop
✅ Identify where existing mapping extends too far
✅ Better distinguish dry gullies from true creek systems
So why wasn’t this properly tested before the maps affected thousands of properties?
A dry gully is not automatically a creek.
Rainwater runoff is not automatically creek flooding.
And residents cannot afford to wait four more years for accurate maps.
🌧️ Is this fast enough? What interim solution should Council introduce now?
Link to Council's investigation report: https://pub-logancity.escribemeetings.com/filestream.ashx?DocumentId=20689