Narellan Creek Overland Flood Study (Vol 1) - Flipbook - Page 19
Narellan Creek Catchment
Flood Study
2.2.5
Nepean River Floodplain Risk Management Study & Plan (2022)
Cardo NSW/ACT Pty Ltd prepared the 8Nepean River Floodplain Risk Management Study and
Plan9 (2022) on behalf of Camden Council. The report was prepared as part of the NSW
Government9s Floodplain Management Program which aims to reduce existing flooding
problems across developed areas and ensure that new development is compatible with the
flood hazard and does not create additional flooding problems elsewhere.
Although the Study and Plan focussed on the Nepean River, the Narellan Creek catchment
was also included in the study area. The Study and Plan took advantage of the TUFLOW
hydraulic model that was updated as part of the 8Update of Narellan Creek Flood Study9
(PWA, 2017) to define the flood risk across the Narellan Creek catchment. However, as
noted in the previous section, this model did not fully capture all potential overland flow
paths. Therefore, to ensure the flood risk was better captured by the Study and Plan, the
TUFLOW model was updated to include a
