Flood and drainage studies
  • Last updated:
  • 21 Sep 2021

The following flood and master drainage studies are the basis of published flood mapping products.

Study Author Year  File size 
 Maroochy River Flood Study  
 BMT WBM
 2017
 208MB
 Mooloolah River Flood Study 
 Cardno 
 2015
 161MB
 Pumicestone Flood Study   BMT 
 2018 
 99.3MB
 Cornmeal Creek Flood Study and Addendum
 Cardno 
 2013
 2017
 69MB
 Doonan and Yandina Creek Flood Study Upgrade (mapping revised in 2012 by HWMC) 
 JWP 
 2008
 71.3MB
 Obi Obi Creek Flood Study 
 Engeny 
 2013
 33.1MB
 Mary River Flood Study 
 DHI 
 2012
 8.9MB
 Sunshine Coast Storm Tide Study 
 Aurecon 
 2013
 24.8MB
 Flood Modelling of Catchments Upstream of Ewen Maddock Dam 
 HWMC 
 2020
 16.2MB
 Alexandra Headland Master Drainage Study 
 SMEC 
 2019
 126MB
 Caloundra Master Drainage Study 
 SMEC 
 2019
 138MB
 Landsborough Master Drainage Strategy  
 WMAwater
 2018
 53.3MB
 Nambour East Master Drainage Strategy 
 WMAwater
 2018
 82.5MB
 School Road, Maroochydore Master Drainage Study 
 SMEC 
 2018
 74.8MB
 Cotton Tree to Picnic Point Master Drainage Plan 
 Cardno 
 2019
 117MB
 Coolum Beach Master Drainage Study 
 SMEC 
 2019
 126MB
 Kings and Shelly Beach Master Drainage Study 
 SMEC 
 2019
 99.7MB
 Maroochy North Shore Master Drainage Plan 
 SMEC 
 2021
 599MB
 Kawana Master Drainage Plan  
 PeakUrban
 2021
 3GB
 Maroochydore West Master Drainage Plan 
 Cardno 
 2021
 106MB
 Nambour West Master Drainage Plan 
 Cardno 
 2021
 159MB
 Beerwah Master Drainage Plan  
 Water Technology
 2021
 215MB
 Nambour North Master Drainage Plan 
 Water Technology
 2021
 188MB
 SMDB Cane Drain Sizing Investigation  
 Pitt & Sherry
 2020
 42.3MB
 Sunshine Coast Council Flood Risk Assessment Methodology  BMT  2021  289KB

In addition, council has prepared Flood Models to determine overland flow paths for the following locations. The outputs of these models also contribute to the public flood mapping products published by council. Reports do not exist for these models, however the modelling methodology is the same as the master drainage studies from the list above.

 Location of Overland Flow Model  Creator
 Bli Bli
 SCC
 Buderim – Kunda Park
 SCC
 Caloundra West
 SCC
 Golden Beach
 SCC
 Palmwoods
 SCC
 Woombye
 SCC
 Yandina
 SCC
 Yaroomba 
 SCC

Mapping from these flood studies and models are available online via council’s MyMaps system and can be accessed under General Information (Flood Mapping) in the Layer List.

The mapping represents the original flood study outputs. Other council flood products for land use planning and emergency preparedness purposes have been developed from this information by determining the highest flood level at any given location. Often the flood levels of regional catchments are the dominant flood level, but this could obscure the fact that there may be a localised flooding issue associated with drainage in an area.

It is expected these flood study reports and the associated online mapping will be of most interest to consultants undertaking investigations on behalf of developers, and may be referred to by council’s own Development Services staff as part of the development application process.

Provide feedback: Council is currently seeking feedback on how easy this flood mapping and information is to navigate and understand. Please view the factsheets, FAQs and how-to videos to help you explore the mapping and provide your feedback to us in this short survey.

General Information Mapping Layers

Council’s Emergency Preparedness and Land Use Planning Flood Mapping products are created using information from numerous Flood Study and Master Drainage Study reports.

Council’s General Information Mapping Layers contain data from the flood studies, master drainage studies and overland flow path models listed above.

The General Information Mapping Layers present flood extent and flood hazard mapping for a range of flood likelihoods.

These layers are often used by council’s own development services team. The mapping offers original raw data from various studies which can help to inform other projects. In some locations these mapping layers are likely to assist with a better understanding of drainage and overland flow in locations that are also affected by regional flooding.