We are preparing a Flood Study for the Greendale Creek catchment to identify and manage flood risks. The study area comprises all areas that drain to Curl Curl Lagoon, including the suburbs of Curl Curl, North Curl Curl and parts of the suburbs of Brookvale, Narraweena and Freshwater.

The Community Survey has now closed. Thank you to those who completed a survey, the community's participation is important to help inform the preparation of the Study. The responses will be analysed and will help Council to determine the flood behaviour in the catchment. Once the draft Flood Study has been prepared and put on public exhibition, the community will have the opportunity to discuss the results with Council Staff and the engineering consultants undertaking the Study.

Survey feedback being reviewed

Greendale Creek catchment

Project updates

We need the local community to help us better understand flood risks in the Greendale Creek catchment.

Please tell us about your experiences of flooding in the Greendale Creek catchment by filling in the online survey.

Please note that a paper version of the survey is being mailed out to residents in the catchment area, if you prefer to fill it out in writing.

Photos can be attached within the survey and videos can be emailed to floodplain@northernbeaches.nsw.gov.au

Survey closes Sunday 8 September 2019

Northern Beaches Council is responsible for the identification of flood prone land in the Local Government Area (LGA). We also play a key role in the management of risks to life and property from flooding.

One of our most important activities is to increase our community's awareness of flooding so that people are better able to understand and plan for the flood risks they face.

A flood study aims to:

- define existing flood behaviour (including levels and extents)

- help identify flooding problem areas in the catchment

- assess the impacts of climate change.

More information about flood studies is available here.

Council will prepare a Draft Flood Study for Greendale Creek to identify and manage flood risks in the catchment area.

The draft Study will be placed on Public Exhibition in early 2020.

Project lifecycle

  • Timeline item 1

    Aug '19 - Survey

  • Timeline item 2

    Feb '20 - Public exhibition


  • Timeline item 3

    April '20 - Report to Council


Duncan Howley

Team Leader - Floodplain Planning and Response

1300 434 434 or email