Creek Flood Studies and Maps

Flood Studies model how catchments are expected to respond during varying intensities and durations of rainfall events. Flood modelling is used to estimate:

  • The inundation extents of the areas that may be flooded
  • The peak depths of flood waters and
  • The hazard related to the depth of water or how quickly the water flows (velocity).

Flood Studies form the initial ‘flood investigation’ step outlined in Council’s Flood Management Strategy(PDF, 23MB).  Flood Studies provide input to Council Planning Schemes, assists with future land use plans, and be used to assist with Council’s emergency planning. Flood Studies are used when a Flood Records search is requested from Council, usually when purchasing a property.

Creek catchments were modelled in our area for the first time in 2014.  Council has gone to great lengths to ensure that the models are as accurate as possible. The models will be further refined over time as additional information becomes available. Council has placed an electronic rain gauge on the Rogar Avenue and Yaamba Road Reservoirs to improve rainfall data collection in our catchments.

Any additional information such as electronic rainfall gauge data, photos and videos that the community can provide following significant rainfall will also be extremely important in further refining these models. If you would like to provide feedback, make an enquiry, or provide information on your creek catchment in the future, please click here.

View the 100 Year ARI Maps for each study below:
Frenchmans Creek 100 Year ARI Maps(PDF, 2MB)
Limestone Creek 100 Year ARI Maps(PDF, 2MB)
Moores Creek 100 Year ARI Maps(PDF, 2MB)
Ramsay Creek 100 Year ARI Maps(PDF, 1MB)
Splitters Creek 100 Year ARI Maps(PDF, 2MB)
Thozets Creek 100 Year ARI Maps(PDF, 2MB)
Gracemere Catchments 100 Year ARI Maps(PDF, 7MB)

View the full Local Creek Catchment Flood Studies below:
Frenchmans Creek Hydrologic and Hydraulic Modelling Report (PDF, 27MB)
Limestone Creek Hydrologic and Hydraulic Modelling Report(PDF, 26MB)
Moores Creek Hydrologic and Hydraulic Modelling Report(PDF, 23MB)
Ramsay Creek Hydrologic and Hydraulic Modelling Report(PDF, 20MB)
Splitters Creek Hydrologic and Hydraulic Modelling Report(PDF, 27MB)
Thozets Creek Hydrologic and Hydraulic Modelling Report(PDF, 27MB)
Gracemere Catchments Hydrologic and Hydraulic Modelling Report(PDF, 2MB)
(Gracemere Creek, Washpool Creek, Middle Creek and Local Gracemere Catchments)
Gracemere Catchments Hydrologic and Hydraulic Modelling Mapping(PDF, 36MB)
(Gracemere Creek, Washpool Creek, Middle Creek and Local Gracemere Catchments)