Appendix J - Civil Engineering Report and SBSMP.pdf

3.        Erosion and Sediment Control Methods




                                                                                                                  Proposed Amendments August 2015
                                                                                                 The Noosa Plan
                    Element                                    Solution

Minimise disturbance when excavating      Retain as much grassed area as possible on the
                                          site.
                                          These areas not only improve the appearance
                                          of the site they also filter much of the sediment
                                          from stormwater run-off before it reaches the
                                          drainage system.
Catch drains and perimeter banks          Allow for diversion of up slope stormwater
                                          around the work site and other disturbed
                                          surfaces.
Install a sediment barrier                Install sediment barriers down slope of the
                                          building site to filter coarse sediment before it
                                          can wash into gutters, drains and watercourses.
                                           Purpose designed geotextile sediment
                                               fabric (i.e. not shadecloth) attached to posts
                                               with the geotextile buried in an upstream
                                               trench; or
                                           Place turf of a minimum 600mm width along
                                               kerb line; or
                                           Straw bales, staked in a 100mm (min) deep
                                               trench.
Single gravelled entry-exit               Restrict vehicle access to one entry-exit point.
                                           Gravelling the access point will allow all
                                               weather access, will reduce the amount of
                                               soil carried off the site by vehicles, and will
                                               provide a permanent base for the driveway.
Early stormwater drainage connection      Connect a temporary or permanent downpipe/s
                                          to the stormwater system before laying the roof
                                          or slow and spread the flow from downpipe/s to
                                          avoid localised erosion. Downpipe/s may be
                                          temporarily removed during wall construction.
                                          All stormwater must discharge in a manner that
                                          does not cause soil erosion.
Concrete waste and washing                Waste concrete and household paint must not
                                          be allowed to wash into the gutters or the street.
Sand and soil stockpiles                  Stockpiles must be placed wholly on the
                                          construction site and behind a sediment barrier.




                                       S2.3