Attachment 4a - Engineering Report Part 1 · MCU18/0015

12.0   EARTHWORKS


Refer to the attached Engineering Drawing C5756/15/P32 for details of the proposed
earthworks layout and typical sections.


Proposed earthworks are required for the construction of the proposed access driveway
(and associated drainage structures) and proposed construction of infrastructure (sewer,
water, electrical & telecommunications). Due to the site slope, a detailed geotechnical
report has been prepared by Core Consultants and should be referred to for site specific
recommendations and limitations.


13.0   EROSION AND SEDIMENT CONTROL


Refer to the attached Engineering Drawing C5756/15/P29-30 for preliminary details of
erosion and sediment control measures.


Proposed earthworks are required for the construction of the proposed access driveway,
building pads and retaining walls. In order to meet Ecological and Geotechnical objectives,
it is necessary to limit the total area of disturbance during the construction and
operational phase. It is expected that the risk of sediment release to the adjacent flow
path will be minimal.


Standard erosion and sediment control measures, including stabilising disturbed areas,
installation of sediment fences to downslopes and diversion of clean stormwater runoff
will be employed to further reduce these risks. It is proposed that detailed design of
construction phase erosion and sediment control be undertaken at the Operational
Works application stage.




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