Narellan Creek Overland Flood Study (Vol 1) - Flipbook - Page 86
Narellan Creek Catchment
Flood Study
FPCC
3
SubCategory
-
Constraint
Outside FPCC 2
but generally
below the DFE
plus freeboard
Implications
Consideration
Hazardous conditions may exist creating Standard land-use and development controls
issues for vehicles and people. Structural aimed at reducing damage and the exposure of
damage to buildings that meet building the development to flooding in the DFE are likely
standards unlikely because of flooding. to be suitable. Consider the need for additional
conditions for emergency response facilities, key
community infrastructure and vulnerable users.
Consider the need for conditions for emergency
Outside of FPCC Emergency response may rely on key
3 but within the community facilities such as emergency response facilities, key community infrastructure
hospitals, emergency management
and land uses with vulnerable users.
PMF extent
4
-
headquarters and evacuation centres
operating during an event. Recovery
may rely on key utility services being
able to be readily re-established after an
event.
A FPCC 1 area extends through multiple R2 residential properties fronting Farmhouse
Place, Curran Hills.
A FPCC 1 area surrounds R2 residential properties fronting Paddy Miller Avenue,
Curran9s Hill. The properties themselves are classified as FPCC 2 due to access being cut
along Paddy Miller Avenue.
FPCC 1 areas around the Narellan Town Centre.
FPCC 4 is the most dominant category impacting on the catchment. In general, this should
not present significant issues for most development types. However, care will need to be
exercised for particularly sensitive or important land uses (e.g., hospitals, aged care
facilities, preschools).
7.4
Floodplain Risk Precincts
The 8Nepean River Floodplain Risk Management Study and Plan9 (Cardno, 2022) established
Floodplain Risk Precincts for the Nepean River (including Narellan Creek). The Precincts
allows Council and developers to understand what types of development are suitable across
different sections of flood liable land and what controls should apply to development to
ensure the flood risk is suitably managed.
The Floodplain Risk Precincts are defined in Appendix E of the 8Nepean River Floodplain Risk
Management Study and Plan9 and are reproduced in Table 21. Also included in Table 21 are
the criteria used to map each floodplain risk precinct.
As noted in Table 21, the flood risk precincts are broken down into two main categories
based on whether the inundation is
