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earthworks code assessment
9.4.2 Earthworks Code
9.4.2.1 Application
(1) This code applies to assessable development identified as requiring assessment against the Earthworks code by the tables of
assessment in Part 5 (Tables of Assessment).
(2) All provisions in this code are assessment benchmarks for applicable assessable development.
9.4.2.2 Purpose and Overall Outcomes
(1) The purpose of the Earthworks code is to ensure earthworks do not unreasonably impact on the natural environment or
other properties and provide a safe and secure work environment.
(2) The overall outcomes sought for the Earthworks code are:
(a) Earthworks are designed and constructed to be structurally sound.
(b) All onsite works provide land stability (including differential settlement or expansion in reactive soils).
(c) Earthworks avoid contamination of land.
(d) Flooding and drainage are appropriately addressed.
(e) Groundwater, watercourses and wetlands are protected.
(f) The loss of native remnant or regrowth vegetation is avoided.
Table 9.4.2.3 Criteria for assessment
Effects of works Table 9.4.2.3 Criteria for assessment (part)
Performance outcomes Acceptable Outcomes
Assessable Development
Effects of works
Drainage
PO1 AO1
Finished surface levels ensure land is free draining. Filled or excavated areas have a minimum gradient of 0.5%
and drain to Council’s stormwater infrastructure where
available, or where stormwater infrastructure is not available,
toward the street.
Able to comply by sending water to
Hydraulics waterway (legal point of discharge)
PO2
Change to the levels on site do not have an adverse impact on No acceptable outcome provided
the flooding and drainage characteristics offsite. No Acceptable Outcome Applicable
Geotechnical considerations
PO3 AO3.1
Earthworks do not result in geotechnical instability onsite or Filling works are undertaken in accordance with Council’s
to nearby premises. Planning Scheme Policy PSP6 Engineering design standards
roads, drainage and earthworks.
Able to comply
AO3.2
Where the filling is for residential, commercial or industrial
purposes the works comply with Australian Standard
Guidelines for earthworks on commercial & residential
Able to comply
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Performance outcomes Acceptable Outcomes
development.
Local amenity
PO4 AO4.1
Undertaking earthworks does not adversely impact on the The following control measures are implemented—
amenity of the local area by way of dust, noise or visual (a) regular water spraying of exposed areas to suppress
amenity. dust;
(b) provision of dust stabilised or sealed internal roads;
(c) protective covering of exposed areas that are left for
more than 2 weeks; and
(d) unless a development permit provides otherwise,
disturbed areas are revegetated using species identified
in Council's Planning Scheme Policy PSP2
Landscaping.
Able to comply
AO4.2
Earthworks are undertaken only during the hours of 7:00am to
6:00pm, Monday to Friday and 7:00am to 3:00pm on
Saturday. No work is undertaken on Sunday or public
holidays. Able to comply
Vegetative waste
PO5 AO5.1
Vegetation cleared from a development site is disposed of in Cleared vegetation is transported offsite for disposal in an
an environmentally responsible manner. approved green waste disposal facility.
No vegetation to
AO5.2 be removed
Cleared vegetation is mulched onsite and reused for
landscaping of the finished development.
AO5.3
Cleared vegetation is disposed of for the purpose of firewood.
AO5.4
Disposal of vegetative waste by burning off is avoided.
Managing contamination risk
PO6 AO6.1
Materials used as fill are suitable for development and future Fill material is solid clean earth, free of putrescible or refuse
use of the land and filling or excavation works do not result in material, vegetation, acid sulfate soils, building or construction
the contamination of land. material or other material or contaminants.
Able to comply
AO6.2
The site is not on the contaminated land register. Not on the CLR
Haulage activity and amenity
PO7
Haulage of material to and from a site ensures— No acceptable outcome provided
(a) minimal disturbance to neighbouring properties and
properties along the haulage route; and No Acceptable Outcome Applicable
(b) Council’s road infrastructure including pavements is not
adversely affected.
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Performance outcomes Acceptable Outcomes
Extent of earthworks
PO8 AO8
The layout of the development provides adequate, clearly All earthworks, including cut and fill batters, retaining walls
defined and easily accessible— and the like are contained within the subject site.
(a) onsite vehicle parking and manoeuvring areas; and Able to comply
(b) loading and manoeuvring areas for delivery and service
vehicles.
Sloping sites
PO9 AO9
On sloping sites development follows the natural landform Cut or fill is less than 1.5 metres in depth relative to the
wherever practical and excavation or filling is minimal. natural ground level. Able to comply
Infrastructure protection
PO10
Earthworks and vehicular access do not adversely impact on the No acceptable outcome provided
capacity, operations and maintenance of existing infrastructure. No Acceptable Outcome Applicable
Environmental protection
PO11
Earthworks minimise any adverse impact upon groundwater, No acceptable outcome provided
watercourses, drainage lines, wetlands, and native vegetation. No Acceptable Outcome Applicable
Dams
PO12 AO12.1
Dam location and construction does not impact upon Where the site is in the Rural zone—
neighbouring properties or road reserves, in terms of— (a) the land has a slope of less than 25% (1:4);
(a) hydrology; (b) the earthworks including cut and fill batters and retaining
(b) alteration of existing overland flow paths and patterns; walls are setback a minimum of 50 metres from the
(c) landslide or failure of dam wall; and property boundary; and
(d) effluent disposal areas. (c) the size of the lot is greater than 5 hectares.
AO12.2
Where the site is in the Rural residential zone or the Rural
zone and the lot is less than 5 hectares:
(a) the land has a slope of less than 1:6;
(b) the earthworks including cut and fill batters and retaining
walls are setback a minimum of 20 metres from the
property boundary; and
(c) the dam work involves less than 500m³ of material.
Not Applicable as not for a dam - Furthermore the site is 2.8ha, slope is flat,
there will beAO12.3
no fill batters associated with 100mm of fill over 1000m2.
For all other zones—
No acceptable outcome provided
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