OPW20.0191 NC IR response

                                                                                                                                                                                                                                                                                                        ETRES
                                                                                                    AT MAX. 2.5 M CENTRES
                                                                                                                                                  SELF-SUPPORTING
                                                                                                                                                                                                                                                                                       ID    TH 3 M
                                                                                                                                                  GEOTEXTILE                                                                                                                    MIN. W



                                                                                                 500 MM TO 600 MM                                DIRECTION OF                                                    CONSTRUCTION SITE                                                        MIN.
                                                                                                                                                 FLOW                                                                                                                                              LENG
                                                                                                                                                                                                                                                                                                       TH 15
                                                                                                                                                                                                                                                                                                                  METR
                                                                                                                                                                                                                                                                                                                      ES


                                                                                                                                                                                                                                     200 MM MIN.
                                                                                                   600 MM MIN.
                                                                                                                                             ON SOIL, 150 MM X 100 MM
                                                                                                                                                                                                                                                                                                                                                             DARY
                                                                                                                                             TRENCH WITH COMPACTED                                                                                                                                                                                    BOUN
                                                                                                                                                                                                                                                                                                                                               ERTY
                                                                                                                                             BACKFILL AND ON ROCK, SET                                                                                                                              300 MM MIN.                           PROP
                                                                                                                                             INTO SURFACE CONCRETE


                                                                                                                         SECTION DETAIL

                                                                            DISTURBED AREA
                                                                                                                                                                                           RUNOFF DIRECTED TO
                                                                                                                                                                                           SEDIMENT TRAP/FENCE
                                                                                                       DIRECTION OF
                                                                                                          FLOW
                                                                                                                                                                                                                                             DGB 20 ROADBASE OR
                                                                                                                                          1.5 M STAR PICKETS
                                                                                                                                                                                                                                             30 MM AGGREGATE
                                                                                                                                          AT MAX. 2.5 M CENTRES


                                                                                                                                                                                                                                                                                                                             EXISTING ROADWAY
                                                                                                                                                                                                                                                          GEOTEXTILE FABRIC DESIGNED TO
                                                                                                                                                                                                                                                          PREVENT INTERMIXING OF SUBGRADE
                                                                                                                                                                                                                                                          AND BASE MATERIALS AND TO MAINTAIN
                                                                                                                                                                                                                                                          GOOD PROPERTIES OF THE SUB-BASE LAYERS.
                                                                                                                                                                                                                                                          GEOFABRIC MAY BE A WOVEN OR NEEDLE-PUNCHED
                                                                                                                                                                                                                                                          PRODUCT WITH A MINIMUM CBR
                                                                                                                                                                                                                                                          BURST STRENGTH (AS3706.4-90) OF 2500 N
                                                                UNDISTURBED AREA




                                                                                                                                                                                                                                             N.T.S.

                                                                                                                 20 M MAX.                                                                                                                  CONSTRUCTION NOTES
                                                                                                                                SWMP/ESCP)                                                                                                  1. STRIP THE TOPSOIL, LEVEL THE SITE AND COMPACT THE SUBGRADE.
                                                                                                                   OTHERWISE ON
                                                                                                    (UNLESS STATED                                                                                                                          2. COVER THE AREA WITH NEEDLE-PUNCHED GEOTEXTILE.
                                                                                                                                                                                                                                            3. CONSTRUCT A 200 MM THICK PAD OVER THE GEOTEXTILE USING ROAD BASE
                                                                                                                              FLOW                                                                                                          OR 30 MM AGGREGATE.
                                                                                                                                                                                                                                            4. ENSURE THE STRUCTURE IS AT LEAST 15 METRES LONG OR TO BUILDING
                                                                                                                                                                                                                                            ALIGNMENT AND AT LEAST 3 METRES WIDE.
                                                                                                                                                                                                                                            5. WHERE A SEDIMENT FENCE JOINS ONTO THE STABILISED ACCESS,
                                                                                                                                                                                                                                            CONSTRUCT A HUMP IN THE STABILISED ACCESS TO DIVERT WATER TO THE
                                                                                                                                                                                                                                            SEDIMENT FENCE

                                                               MIN. 1.5 M

                                                                                             STAR PICKETS AT MAXIMUM                              PLAN
                                                                                             2.5 M SPACINGS


                                                              N.T.S.

                                                               CONSTRUCTION NOTES

                                                               1. CONSTRUCT SEDIMENT FENCES AS CLOSE AS POSSIBLE TO BEING PARALLEL TO THE CONTOURS OF THE                                                                                                                          RET
                                                               SITE, BUT WITH SMALL RETURNS AS SHOWN IN THE DRAWING TO LIMIT THE CATCHMENT AREA OF ANY ONE                                                                                                                       5 ME URN T
                                                               SECTION. THE CATCHMENT AREA SHOULD BE SMALL ENOUGH TO LIMIT WATER FLOW IF CONCENTRATED AT                                                                                                                              TRE URF                                                         CONSTRUCTION NOTES
                                                               ONE POINT TO 50 LITRES PER SECOND IN THE DESIGN STORM EVENT, USUALLY THE 10-YEAR EVENT.                                                                                                                                    S TO STR
                                                                                                                                                                                                                                                                                              PRE IPS EV                                          1. INSTALL A 2 x 400mm MINIMUM WIDE ROLL OF TURF ON THE
                                                               2. CUT A 150-MM DEEP TRENCH ALONG THE UPSLOPE LINE OF THE FENCE FOR THE BOTTOM OF THE FABRIC                                                                                                                                      VEN     E
                                                               TO BE ENTRENCHED.                                                                                                                                                                                                                     T SC RY                                      VERGE NEXT TO THE KERB AND AT THE SAME LEVEL AS THE TOP
                                                                                                                                                                                                                                                                                                         OUR                                      OF THE KERB.
                                                               3. DRIVE 1.5 METRE LONG STAR PICKETS INTO GROUND AT 2.5 METRE INTERVALS (MAX) AT THE DOWNSLOPE
                                                                                                                                                                                                                                                                                                                                                  2. LAY 1.4 METRE LONG TURF STRIPS NORMAL TO THE KERB EVERY
                                                               EDGE OF THE TRENCH. ENSURE ANY STAR PICKETS ARE FITTED WITH SAFETY CAPS.                                                                                                                                                  TRE
                                                               4. FIX SELF-SUPPORTING GEOTEXTILE TO THE UPSLOPE SIDE OF THE POSTS ENSURING IT GOES TO THE                                                                                                                           1 ME                                                          5 METRES.
                                                               BASE OF THE TRENCH. FIX THE GEOTEXTILE WITH WIRE TIES OR AS RECOMMENDED BY THE
                                                               MANUFACTURER. ONLY USE GEOTEXTILE SPECIFICALLY PRODUCED FOR SEDIMENT FENCING. THE USE OF
                                                               SHADE CLOTH FOR THIS PURPOSE IS NOT SATISFACTORY.
                                                               5. JOIN SECTIONS OF FABRIC AT A SUPPORT POST WITH A 150-MM OVERLAP.
                                                               6. BACKFILL THE TRENCH OVER THE BASE OF THE FABRIC AND COMPACT IT THOROUGHLY OVER THE
                                                                                                                                                                                                                                                                                                                               M   MIN.
                                                               GEOTEXTILE.                                                                                                                                                                                                 TUR
                                                                                                                                                                                                                                                                              F                                          800 M

                                                                                                                                                                                                                                                         KER
                                                                                                                                                                                                                                                               B


                                                                                                                                                                                                                                                   GUT
                                                                                                                                                                                                                                                         TER

                                                                                                                                                                                                                                         ROA
                                                                                                                                                                                                                                               DW
                                                                                                                                                                                                                                                  AY


                                                                                   3.0m MAX                                    3.0m MAX                              F42 GEOFABRIC
                                                                                                                           SPILL THRU WEIR                           FABRIC (TO AS 1304)
                                                                                                                            (IF REQUIRED)
                                                                                                                    300                                                              200
                                           600
                                                                        GROUND LEVEL
                                           600                                                                                                                                                                                        N.T.S.

                                                                                                                                                                      POSTS OR STEEL PICKETS
                                                                                                                                                                      DRIVEN 600mm INTO
                                                                                                                                                                      GROUND
                                                                                             SCALE 1:100




Datum           AHD          Scale        As Shown            Status         For Approval
                                                                                                                                                                                                                                                                                  ABN: 13 609 593 339 Project                                         Proposed Earthworks                                      Drawing Title   Erosion & Sediment Control
Date            October 2020                                  Drawn          JAG      Checked         CAG                                                                                                                                                                                  PO Box 5028                                                                                                                         Details Plan
                                                                                                                                                                                                     NORTH




                                                                                                                                                                                                                                                                                       Maroochydore BC
© 360 Civil Consulting Pty Ltd - All Rights Reserved.
This drawing as been produced for the sole benefit of the     Designed       JAG      Approved        CAG                                                                                                                                                                                                Location                                     707 Kinmond Creek Rd, Cootharaba
Client in accordance with the Terms of Agreement.
                                                                                                                                                                                                                                                                                               QLD 4558
No responsibility or liability will be assumed to any third   CHRIS GIBBERD RPEQ 13268                                                                                                                                                                                            Mobile: 0403 862 009
party. This document shall only be used for the site and
project specified.
                                                                                                                     A      23-11-20 Changes as per NC Information Request

                                                                                                                    Issue Date Description
                                                                                                                                                                              JAG   CAG

                                                                                                                                                                              By Chkd
                                                                                                                                                                                                                                                               Email: [email protected] Client                                       M. Klein                                                 Project No.     2020083 Dwg No. 07     of   07   Issue   A