Attachment I - Flood Assessment

Cooroy Hinterland Park Flood Assessment



1 INTRODUCTION
Hydrology and Water Management Consulting (HWMC) has been commissioned by Noosa
Council to undertake a flood assessment for the proposed Hinterland Park at Cooroy. The site is
located on Lot 1 and 2 of RP153299 and Lot 3 of SP230055. Works are also proposed within the
adjacent Maple Street road reserve. The site is situated on the cleared open space between
Cooroy Creek and the Cooroy Library.

Flood levels at the site are dominated by Cooroy Creek events however there is also a local
catchment which drains through the site from the south.

The objectives of this investigation are as follows:

    •    Utilise Noosa Council’s established flood model of Cooroy Creek to undertake a flood
         assessment of the proposed park and determine the potential for adverse flood impacts.
         Provide recommendations in relation to managing potential risks.
    •    Assess flood risks associated with runoff from the local catchment in the south.
    •    Prepare flood mapping of the site to describe flooding characteristics including peak depths,
         velocities and peak flood level impacts.
    •    Provide discussion and recommendations around flood safety aspects and flood resilience.




J00318R1V1                                                                                         1