OPW Civil Plans RFI Response · OPW25/0057

                                                                                                                                                                                                                                                                                                                                                                                                                                           IT IS THE RESPONSIBILITY OF THE
                                                                                                                                                                                                                                                                                                                                                                                                                                       CONTRACTOR TO CONTACT THE RELEVANT
                                                                                                                                                                                                                                                                                                                                                                                                                                      AUTHORITIES TO CONFIRM THE LOCATION OF
                                                                                                                                                                                                                                                                                                                                                                                                                                         ALL EXISTING SERVICES PRIOR TO THE
                                                                                                                                                                                                                                             E                                                                                                                                                                                             COMMENCEMENT OF EXCAVATION


                                                                                                     WEIR NOTES:
                 OUTLET CHANNEL DETAILS                                                              1.      INSITU MATERIAL TO BE TESTED AND APPROVED BY GEOTECHNICAL
                  Q100FLOW                   805l/s                                                          ENGINEER PRIOR TO WEIR CONSTRUCTION
                                                                                                     2.      GROUTED ROCK PITCHING TO BE 75-100 STONES, 300 THICK ON FILTER
             Longitudinal Grade           2.00% (MIN)
                                                                                                             CLOTH. REFER LANDSCAPE DRAWINGS FOR PLANT SPECIFICATION AND
                     Lining                  Rock                                                            DETAILS. GEOTECHNICAL ENGINEER TO CONFIRM COMPACTION                                                                                                                                                    NOTE: WEIR TO BE IN ACCORDANCE
                                                                                                             REQUIREMENTS FOR BUND SUBSOIL.                                                                                                                                                                            WITH IPWEA STD DRG DSD-507
                  Mannings 'n'                .06
                                                                                                     3.      CONSTRUCTION TOLERANCES AS DOCUMENTED IN THE 'WATER
                  Flow Depth                 0.19m                                                           SENSITIVE URBAN DESIGN CONSTRUCTION AND ESTABLISHMENT
                    Velocity                0.72m/s                                                          GUIDELINES - SWALES, BIORETENTION SYSTEMS AND WETLANDS'
                                                                                                             (WATER BY DESIGN) MUST BE ACHIEVED.                                                                                             0.5 m                                                                                    6.0 m                                                                                      0.5 m
                        d*v                 0.14m²/s




                                                                                                                                                                                                                                                                                                                                                                                                                                  0.25m
                                                                                                                                                                                                                                              0.25m
                 Swale Capacity             1250l/s                                                                                                                                                                                                                            CONCRETE WEIR
                                                                                                                                                                                                                                                                               R.L 103.30                                                                                                                                                   TOP OF BANK RL103.55
                                                                                                                                                                                                                                                                                                           Q100 = R.L.103.48
                                                                                                                                                                                                                                                            1:3                                                                                          Q10 = R.L.103.43
                                                                                                                                                                                                                                                                                                                                                                                                                      1:3
                                                                        250 MIN BUND TO
                                                                        CONTAIN Q100 FLOW                      Q100 DEPTH = 0.19m @       Q10 DEPTH = 0.15m @
                                                                                                               MIN 2% CHANNEL GRADE       MIN 2% CHANNEL GRADE
                                                                                             0.25m


                                                                                                                                                                                                                                                                                                                      300mm WIDE 600mm DEEP
                                                                                                                                                                                                                                                                                                                      CONCRETE WEIR LEVEL SPREADER
                                    EXISTING                                                                                                                                                                                                                                                                          N32 SL82 MESH CENTRAL
                                    SURFACE

                                                                                                                             STW PIPE
                                                                                                                                                                                                                                                                                                                         CONCRETE WEIR DETAIL

                  SECTION C          Datum RL101.00
                  SCALE 1:100 A3
                                                                                                                                                                                                                                                                                                                         SCALE 1:25 (A1) - 1:50 (A3)




                                                                                                                                                                                                                                                                                                                                                                                                                        RP BDY
                  106
                                                                                                                                                                                                                900x900 FIELD INLET WITH
                                                                                                                                                                                                                TYPE 1 GRATED INLET
                                                                                                                                             RP BDY




                                                                                                                                                                                      TOP OF BIO BANK           SL103.2
                  105                                                                                                                                                                 RL103.55                  IL101.6
                                                                                                                     LINER TO EXTEND                                                                                                                                                                   EXISTING SURFACE
                                                                                                                     UNDER WEIR AND
                                                                                                                     ROCK GROUTED ROCK                                                CONCRETE WEIR                 EXTENDED DETENTION DEPTH                                                                                                                                      1.95m
                                                                                    EXISTING GRATED
                                                                                                                                                                                      RL103.30
                  104                                                               STORMWATER PIT                                                                                                                                                                                                                                                                           PLANTED BATTER
                                                                                    SL102.67




                                                                                                                                                                                                             0.3m
                                                                                                                                                                                                                                                                                                                                                                                                        1:4
                                                                                    IL101.41                                                                2% MIN
                                                                                                                                                                                      1:3                                                                                                                                                                                           1:3




                                                                                                                                                                                                                     0.1m
                  103                                                                                                                                                                                                                                     BIORETENTION BASIN FILTER SURFACE RL102.90
                                                                                                                                                                                                                     0.3m                                                                                                                                                                              TOP OF BANK RL103.55

                                                                                                                                                                                                                                                                                                                                                                                                    DESIGN SURFACE
                  102
                                                                                                                                          Ø600 [email protected]%
                                                                                          DSIL101.45                                                                                   USIL101.6                                                                                                                                                                                    PERMEABLE LINER
                                                                                                                                                                                                                                                             SUBSOIL DRAIN GRADING
                  101                                                                                                                        PERMEABLE LINER TO EXTEND                                                                                       AT 0.5% TOWARD OUTLET
                                                                                                                                                                                                                            FILTER CLOTH FIXED TO
                                                                                               CONNECT TO EXISTING PIT                       500 UNDER GROUTED ROCK
                                                                                                                                                                                                                            PERIMETER OF PIT
                                                                                                                                             SPOILS AND PINNED TO BATTER

                  SECTION B          Datum RL100.00
                  SCALE 1:100 A3




                  106




                                                                                                                                                                                                                                                                                                                                                RP BDY
                                                                         SEDIMENT FOREBAY                                                 150 MIN THICK REINFORCED
                  105                                                    GENERALLY IN ACCORDANCE                                          CONCRETE BASE AND EDGE
                                                                         WITH IPWEA STD DRG DSD-506                                                                                                                                                     EXISTING SURFACE                                                       0.5m
                                                                                                                                                                                            EXTENDED DETENTION DEPTH                                                                                   1.95m
                                                                                                                                            ROCK APRON ALONG EDGE OF
                  104                                                                                                                       FOREBAY (100-150 NOM DIA)                                                                                                                             PLANTED BATTER
                                                                                                                                                                                                                             0.3m




                                                                                                          IL102.95
                                                                                                                                                                                                                                                                                                                                   1:3 M
                                                                                                                                                                                                                                                                                                            1:3                            AX
                                         Ø600 RCP
                  103                                                                                                    0.5%                                   BIORETENTION BASIN FILTER SURFACE RL102.90
                                                                                                                                                                                                                                                                                                                               TOP OF BANK RL103.55
                                                                                                                                                                                                                             NOM 1m




                                               SEWER LINE
                                                                                                                                                                                                                                                                                                                               DESIGN SURFACE
                  102

                                                                                                                                                                                                                                                                                                            LINER
                                                                                                                                                                                                                                                                                                                                                                                                                                    Check all dimensions before commencement of work.
                  SECTION A          Datum RL101.00
                                                                                                                                                                                                                                                                                                                                                                                                                                    Check Site boundary dimensions from the Title plans
                  SCALE 1:100 A3                                                                                                                                                                                                                                                                                                                                                                                                    Check Building Boundary clearances by set out.
                                                                                                                                                                                                                                                                                                                                                                                                                                    Notwithstanding the information supplied on this drawing,
                                                                                                                                                                                                                                                                                                                                                                                                                                    the location, depth and extent of underground or overhead
                                                                                                                                                                                                                                                                                                                                                                                              SCALE 1:50 (A1) - 1:100 (A3)          services are to be confirmed and protected on site by the
                                                                                                                                                                                                                                                                                                                                                                                                                                    contractor prior to commencement of works.

                                                                                                                                                                           Approved
Checked -    CT                                                                                                                                                                                                                       Drawing title -                                          Project -   PROPOSED 1 INTO 3                                        Site -                                                        Project No.     233467       Sheet No.              C361
                                                       E   17/06/2025   RFI STORMWATER AMENDMENTS                       SK
Design -    SK            Drawn -   SK                 D   24/03/2025   UPDATED PROJECT NAME                            SK                                                                                                            BIORETENTION BASIN SECTIONS                                          DEVELOPMENT                                              62 LAKE MACDONALD DRIVE,                                      Digital Ref :
                                                                                                                                                                                                                                                                                                                                                                                                                                                  C361 BIORETENTION BASIN
                                                                                                                                                                                                                                                                                                                                                                                                                                                  SECTIONS                  Issue :       E
                                                       C   14/03/2025   UPDATED LOT LAYOUT                              SK
Scales -    AS SHOWN                                   B   20/09/2024   ISSUE FOR APPROVAL                              SK                                                 COVEY ASSOCIATES PTY LTD     124 DUPORTH AVENUE                                                                     Client -
                                                                                                                                                                                                                                                                                                           NOOSA COUNCIL                                            COOROY                                                          This Document is copyright and shall not be copied
                                                       A    10/01/24    ISSUE FOR CLIENT REVIEW                         SK
                                                                                                                                                                           ABN 59 137 305 992           PO BOX 16                                                                                                                                                                                                                   without written approval, nor shall it be used except
Document Stage -              APPROVAL                                                                                                                                     (07) 5443 7777               MAROOCHYDORE QLD 4558                                                                                                                                                                                                       for the Development and the Site Specified.
                                                      Issue Date                      Description                       By                                                 [email protected]
       c:\12dS\data\12DSERVER\233467_2957\DWG Covey\OPW\Uncontrolled\C361 BIORETENTION BASIN SECTIONS.dwg                                                                                                                                                                                                                                                                                                                         Plot 4 July 2025 - 5:07 PM