Appendix D_Engineering Report

Earthworks Code – The Noosa Plan
Performance Criteria and Acceptable Solutions

Performance outcomes                                    Acceptable outcomes                               Assessment

Drainage                                                S1.1                                              RO1 Bulk earthworks will be designed to prevent
O1                                                      The finished surface gradient of any filled or        ponding on the site or on neighbouring land.
Finished surface levels ensure land is free draining.   excavated area is within the range 0.5% to
                                                        1.5% and drains to Council’s stormwater
                                                        infrastructure where available or where
                                                        stormwater infrastructure is not available,
                                                        toward the street.
Hydraulics                                              No solution provided.                             RO2 The existing drainage characteristics of the site
O2                                                                                                            and surrounding area has been considered. The
                                                                                                              proposal ensures that surrounding properties
Any change to the level of the land does not have an                                                          and downstream stormwater infrastructure and
adverse flooding impact on the flooding and drainage                                                          waterways are not adversely impacted by the
characteristics off-site.                                                                                     proposed development.

Geotechnical considerations                             For assessable development—                       RO3 All filling will be undertaken in accordance with
O3                                                      S3.1    Filling works are undertaken in               Council’s PSP5 – Engineering Design
Earthworks do not result in geotechnical instability on accordance with Section 2.8- Filling of Site of       Standards – Roads and Drainage & Earthworks
the premises or nearby premises.                        Council’s PSP5 - Engineering Design                   and AS 3798 - Guidelines for earthworks on
                                                        Standards- Roads and Drainage & Earthworks            commercial & residential development. All
                                                                                                              excavation will be undertaken with no adverse
                                                        AND
                                                                                                              impact on neighbouring properties or
                                                        S3.2 W here the filling is for residential            surrounding infrastructure.
                                                        commercial or industrial purposes the works
                                                        comply with Sections 3 to 6 of AS 3798 -
                                                        Guidelines for earthworks on commercial &
                                                        residential development.
Local amenity                                         S4.1 The following control measures are             RO4 Water trucks shall be used to minimise dust
O4                                                    implemented—                                            emissions. An ESC plan is to be prepared for
Earthworks do not cause disturbance to the amenity of a) regular water spraying of exposed areas to           the construction phase. All disturbed areas will
the neighbouring land.                                suppress dust;                                          be stabilised should they be exposed for more
                                                      b)provision of dust stabilised or sealed                than 2 weeks. Filling and earthworks will only
                                                      internal roads;