SDA-1116-034770 - Proposed nbn Facility at 23 Jirrima Cres Cooroibah - Response to Information Request

                                                                                                                                                                                                                                                                                       Client:

GENERAL NOTE
                                                                                                             DRAINAGE STRUCTURES
1.    THE CONTRACTOR SHALL COMPLY WITH THE REQUIREMENT OF THE CURRENT AUSTRALIAN STANDARDS,
                                                                                                                                                                                                    1.   TO FACILITATE THE FISH PASSAGE, THE CULVERT HAS BEEN DESIGNED AS FOLLOWS:
      SPECIFICATIONS AND CODES                                                                               1.      LEVEL ON DRAINAGE LONGITUDINAL SECTION REFERS TO THE LEVEL AT THE                    a. ELIMINATE STEPS AND DROPS IN ELEVATION ACROSS THE BED GRADIENT TO
2.    ALL WORK SHALL BE CARRIED OUT IN COMPLIANCE WITH THE CURRENT QUEENSLAND WORKPLACE HEALTH AND                  STRUCTURE SETOUT POINT.                                                                   PROVIDE A LEVEL FISH CROSSING TO AVOID THE NEED FOR FISH TO JUMP OVER
      SAFETY ACT REGULATIONS AND GUIDELINES.                                                                 2.     SETOUT POINTS UNLESS NOTED OTHERWISE ON DETAIL PLANS SHALL BE THE CENTRE                  AN OBSTRUCTION
3.    ANY DISCREPANCY BETWEEN THESE DRAWING AND THE ABOVE MENTIONED DOCUMENTS SHALL BE REFERRED TO                  OF STRUCTURE.                                                                         b. INSTALL THE CULVERT AT A MINIMUM OF 300mm BELOW THE BED LEVEL; AND
      THE SUPERINTENDENT BEFORE PROCEEDING WITH ANY WORK.                                                    3.     THE FINISHED FOUNDATION FOR THE CULVERT BASE SLAB SHALL BE INSPECTED BY AN            c. BACKFILL THE INVERT OF CULVERT WITH BED MATERIAL WON FROM THE SITE TO
4.    NO SUBSTITUTE MATERIALS SHALL BE USED WITHOUT PRIOR WRITTEN APPROVAL OF THE SUPERINTENDENT.                   RPEQ QUALIFIED GEOTECHNICAL ENGINEER BEFORE PLACING OF BLINDING CONCRETE                  MAINTAIN AND SIMULATE NATURAL BED SURFACE
5.    SETOUT COORDINATES / DIMENSION ARE TO BE CONFIRMED ON SITE BY THE CONTRACTOR PRIOR TO                         AND THE FOUNDATION REMEDIED AS THEY DIRECT.                                           d. INSTALL A MINIMUM 1200mm WIDE CULVERT TO ALLOW FOR FISH PASSAGE
      COMMENCEMENT OF WORKS. DRAWING SHALL NOT BE SCALED.
                                                                                                                                                                                                          e. PROPOSED CULVERT INCREASES THE CELL CROSS-SECTIONAL AREA OF THE
6.    IN SOME CASES THE DRAWING DEPICT THE INSTALLATION DIAGRAMMATICALLY. THE CONTRACTOR SHALL SET OUT ALL   4.       REINFORCEMENT                                                                           EXISTING CULVERT CONFIGURATION
      WORK TO SUIT ACTUAL ON SITE DIMENSIONS.                                                                     4.1. DEFORMED BARS = GRADE D500N.                                                                                                                                    Client:
                                                                                                                                                                                                          f.  POST CONSTRUCTION - ALL CULVERTS MUST BE KEPT CLEAR OF BLOCKAGES
7.    THE CONTRACTOR SHALL BE AWARE OF ALL EXISTING STRUCTURES AND SERVICES WITHIN AND ADJACENT TO THE            4.2. ALL REINFORCING STEEL TO BE ACRS CERFIFIED. THE CONTRACTOR SHALL PROVIDE               THROUGH A REGULAR INSPECTION PROGRAM
      SITE OF THE WORKS AND SHALL BE RESPONSIBLE FOR ANY DAMAGE TO THESE SERVICES AND STRUCTURES DURING                MANUFACTURER EVIDENCE OF COMPLIANCE BEFORE ANY REINFORCEMENT IS              2.   IN ACCORDANCE TO DILGP SIGNIFICANT RESIDUAL IMPACT GUIDELINE SECTION 3.8,
      THE COURSE OF THE CONTRACT.                                                                                      SUPPLIED TO THE PROJECT.                                                          THE FOLLOWING HAS BEEN INCORPORATED INTO THE CULVERT DESIGN :
8.    THE SERVICES SHOWN ON THESE PLANS ARE PROVIDE FOR INFORMATION ONLY AND NO RESPONSIBILITY IS TAKEN           4.3. REINFORCING BAR LAPS:                                                              a. LARGER CELL CROSS-SECTIONAL AREA THAN EXISTING CULVERT
      FOR THE ACCURACY OR COMPLETENESS OF THE INFORMATION SUPPLIED.
                                                                                                                                                                                                              CONFIGURATION - TO PREVENT INCREASED WATER DEPTH UPSTREAM OF THE
9.    THE EXTENT AND LOCATION OF EXISTING SERVICES SHOWN IN THESE PLANS ARE APPROXIMATE ONLY. EXACT
                                                                                                                                                                                                              BARRIER WHICH CAN RESULT IN: LOSS OF IN-STREAM PLANTS, LEADING TO
      LOCATION AND DEPTHS OF SERVICES ARE TO BE VERIFIED BY THE CONTRACTOR PRIOR TO CONSTRUCTION. THE                                    MINIMUM SPLICING LENGTHS, UNLESS NOTED OTHERWISE
                                                                                                                                                                                                              REDUCED FOOD SUPPLY OR LOSS OF BREEDING HABITAT
      CONTRACTOR SHALL LIASE WITH THE SERVICE AUTHORITIES TO CONFIRM LOCATION AND TO DETERMINE ANY
      REQUIREMENTS FOR PROTECTION, SUPPORT OR RELOCATION OF AFFECTED SERVICES.
                                                                                                                                              BAR SIZE

                                                                                                                                         MINIMUM LAP LENGTH
                                                                                                                                                                 N12

                                                                                                                                                                  390
                                                                                                                                                                        N16

                                                                                                                                                                        600
                                                                                                                                                                              N20 N24   N28   N32

                                                                                                                                                                              820 1060 1320 1590
                                                                                                                                                                                                          b. PROPOSED CULVERT CELL HAS BEEN ADOPTED TO PROVIDE EQUAL OR BETTER
                                                                                                                                                                                                              FISH PASSAGE FOR THE WATERWAY
                                                                                                                                                                                                                                                                                                  ERICSSON
10.   CONTRACTORS TO LIAISE WITH THE RELEVANT SERVICES AUTHORITY FOR THE COORDINATION OF SHUTDOWN AND
                                                                                                                                                                                                          c.  THE WATERWAY BED IS RETAINED WITH NATURAL SUBSTRATE COMPARABLE TO
      CONNECTION TO THE EXISTING SERVICES.
                                                                                                                                                                                                              THE NATURAL SUBSTRATE SIZE AND CONSISTENCY
11.   ALL PRODUCTS AND MATERIALS ARE TO BE MANUFACTURED TO THE APPLICABLE AUTRALIAN STANDARD OR PROJECT      GRASS / TURF REINSTATEMENT                                                                   d. DURING AND AFTER CONSTRUCTION, THE WORKS WILL BE UNDERTAKEN AS PER
      SPECIFICATION AS APPLICABLE. CONTRACTOR TO PROVIDE TEST CERTIFICATES FOR ALL MATERIAL AS PER THE
                                                                                                                                                                                                              THE REQUIREMENTS OF WWBW01 PART 3 SECTION 5.1.                           Client:
      SPECIFICATION.                                                                                                GRASSED SURFACES WITHIN THE AREA ARE TO BE REINSTATED. THIS INCLUDES NOT
                                                                                                                                                                                                    3.   CULVERT CELLS ARE DESIGNED TO EXTEND 100 PER CENT OF THE MAIN CHANNEL
12.   ALL CONSTRUCTION MATERIALS AND WORKMANSHIP SHALL BE IN ACCORDANCE WITH THE RELEVANT SPECIFICATION             ONLY THE AREA DIRECTLY AFFECTED BY EXCAVATION FOR THE STORMWATER UPGRADE
                                                                                                                                                                                                         WIDTH AND THE CROSSING INCORPORATES AT LEAST ONE (BOX) CULVERT WITH A
      FOR THE WORKS TOGETHER WITH THE REQUIREMENTS OF ALL THE RELEVANT CODES OF PRACTICE REFERRED TO                WORKS BUT ALSO AREAS OF THE SITE ACCESSED BY HEAVY VEHICLES OR AREAS USED
                                                                                                                                                                                                         MINIMUM WIDTH OF 1200MM IN ACCORDANCE WITH WWWBW01 PART 3 FOR AMBER
      THEREIN AND THE REQUIREMENTS OF THE STATUTORY AUTHORITIES WHERE APPLICABLE.                                   FOR STORAGE OF EXCAVATED OR OTHER MATERIALS, OR SITE COMPOUNDS.
                                                                                                                                                                                                         WATERWAYS.
13.   ALL LOCATIONS, ORIENTATION AND LEVELS SHALL BE VERIFIED ON SITE BEFORE COMMENCING ANY WORK,
                                                                                                                                                                                                    4.   CULVERT CROSSING ARE INSTALLED AT THE GRADIENT OF THE EXISTING WATERWAY
      DISCREPANCIES SHALL BE REFERRED TO THE DESIGN MANAGER.
                                                                                                                                                                                                         BED.
14.   DRAINLINE LEVELS MUST BE CHECKED FOR CONFLICT WITH SERVICES AND CONFLICTS RESOLVED WITH THE DESIGN
                                                                                                                                                                                                    5.   PRIOR TO UNDERTAKING THE WORKS, THE CONTRACTOR SHALL PREPARE A
      MANAGER.
                                                                                                                                                                                                         CONSTRUCTION ENVIRONMENTAL CONTROL PLAN (CEMP) FOR APPROVAL,
15.   DO NOT OBTAIN DIMENSIONS BY SCALING DRAWINGS
                                                                                                                                                                                                         IDENTIFYING RISKS AND MANAGEMENT OF THESE RISKS DURING CONSTRUCTION,
16.   NATURAL SURFACE LEVELS ON THE DRAWINGS ARE INDICATIVE ONLY.
                                                                                                                                                                                                         INCLUDING ASSOCIATED EROSION AND SEDIMENT CONTROL/PROTECTION REQUIRED.
17.   ALL DIMENSION, LENGTHS ETC. ARE IN METRES UNLESS NOTED OTHERWISE
                                                                                                                                                                                                    6.   PERIODIC INSPECTIONS SHALL BE CARRIED OUT FOR THE LIFE OF CULVERT CROSSING
18.   ALL LEVELS ARE IN METRES TO AHD.
                                                                                                                                                                                                         IN ACCORDANCE WITH CODE (WWWBW01 PART 3) REQUIREMENTS BY THE OWNER OF
                                                                                                                                                                                                         THE ASSET.
PIPES AND CULVERTS                                                                                                                                                                                                                                                                     Project:
                                                                                                                                                                                                    7.   STORMWATER QUALITY:
                                                                                                                                                                                                          a. IMPACTS ON WATER QUALITY DURING CONSTRUCTION WILL BE MINIMISED BY
1.    RCP = REINFORCED CONCRETE PIPE
2.    RCBC = REINFORCED CONCRETE BOX CULVERT
                                                                                                                                                                                                              UNDERTAKING WORKS SET OUT IN THE BEST PRACTICE EROSION AND SEDIMENT     NATIONAL BROADBAND
                                                                                                                                                                                                              CONTROL GUIDELINES 2008
3.
4.
      ALL PIPES AND CULVERTS SHALL HAVE A 100 YEAR DESIGN LIFE.
      ALL BOX CULVERT LENGTHS ARE MULTIPLES OF 1.2M AND PIPE CULVERT LENGTH ARE MULTIPLE OF 2.44M.
                                                                                                                                                                                                          b. PRIOR TO UNDERTAKING THE WORKS, THE CONTRACTOR SHALL PREPARE A                NETWORK
                                                                                                                                                                                                              CONSTRUCTION ENVIRONMENTAL CONTROL PLAN (CEMP) FOR APPROVAL,
5.    ALL BOX CULVERT AND PIPE SIZES ARE IN MILLIMETRES.
                                                                                                                                                                                                              IDENTIFYING RISKS AND MANAGEMENT OF THESE RISKS DURING CONSTRUCTION,
6.    RCBC/SLBC REINFORCED CONCRETE HEADWALLS SHALL BE CONSTRUCTED IN ACCORDANCE WITH.
                                                                                                                                                                                                              INCLUDING ASSOCIATED EROSION AND SEDIMENT CONTROL/PROTECTION
7.    GENERAL ARRANGEMENT AND INSTALLATION OF PRECAST UNITS FOR RCBC'S SHALL BE IN ACCORDANCE WITH TMR
      STANDARD DRAWING 1316 AND 1318.
                                                                                                                                                                                                              REQUIRED.                                                                      COOROIBAH
                                                                                                                                                                                                          c.  THE CULVERT IS RECESSED INTO THE NATURAL BED AS SHOWN AND IS THEN
8.    CONSTRUCTION OF REINFORCED CONCRETE WINGWALLS AND APRONS FOR FRC/RCP'S SHALL BE IN ACCORDANCE
                                                                                                                                                                                                              BACKFILLED WITH BED MATERIAL COMPARABLE TO THE NATURAL SUBSTRATE
      WITH TMR STD DRG 1303 WITH CUT OFF WALL.
                                                                                                                                                                                                              SIZE AND CONSISTENCY TO MINIMISE IMPACT ON WATER QUALITY
9.    THE GEOTECHNICAL ENGINEER SHALL CARRY OUT INSPECTION OF SITU MATERIAL UNDER CULVERTS AND THE
                                                                                                                                                                                                    8.   HYDRAULIC CONDITIONS OVER THE BARRIER WILL ALLOW FOR FISH PASSAGE:
      PRESENCE OF ACID SULPHATE SOIL (ASS). UNSUITABLE MATERIAL IS TO BE REMOVED AND BACKFILLED WITH
                                                                                                                                                                                                          a. CULVERT CROSSING IS INSTALLED AT NO STEEPER GRADIENT THAN THE
      APPROVED MATERIAL IF DIRECTED.
                                                                                                                                                                                                              WATERWAY BED GRADIENT TO LIMIT VELOCITY INCREASES THROUGH THE
10.   BATTER SLOPES IN THE VICINITY OF BOX CULVERTS/PIPE INLET/OUTLETS MUST BE LOCALLY SHAPED SO THAT
                                                                                                                                                                                                              CULVERT AS FISH CAN ONLY SWIM AGAINST RELATIVELY LOW VELOCITIES
      BATTERS DO NOT PROTRUDE IN FRONT OF WINGWALLS/APRONS MAXIMUM LOCAL SLOPES OF 1:1 MAY BE USED FOR
                                                                                                                                                                                                          b. LARGER CELL CROSS-SECTIONAL AREA THAN EXISTING CULVERT
      1M MAX HEIGHT, BUT MUST BE PROTECTED USING ROCK MATTRESS DESIGN BATTER SLOPE IS ACHIEVED.
                                                                                                                                                                                                              CONFIGURATION - TO PREVENT INCREASED WATER DEPTH UPSTREAM OF THE
11.   ALL PIPE/BOX CULVERT EXTENSIONS WILL BE ON SAME GRADE AND ALIGNMENT AS EXISTING UNLESS NOTED
                                                                                                                                                                                                              BARRIER WHICH CAN RESULT IN: LOSS OF IN-STREAM PLANTS, LEADING TO
      OTHERWISE.
                                                                                                                                                                                                              REDUCED FOOD SUPPLY OR LOSS OF BREEDING HABITAT
12.   INSTALLATION, BEDDING AND FILLING/BACKFILLING AGAINST/OVER CULVERTS SHALL BE IN ACCORDANCE WITH TMR
                                                                                                                                                                                                          c.
      STD DRG NO. 1359.



                                                                                                                                                                                                                                                                                      01 21.12.16       PRELIMINARY ISSUE
                                                                                                                                                                                                                                                                                      Rev Date      Revision Details




                                                                                                                                                                                                                                                                                      Aurecon Australia Pty Ltd ABN 54 005 139 873




                                                                                                                                                                                                                                                                                       DESIGNER:                       A.O.H
                                                                                                                                                                                                                                                                                       CHECKED:                        CS
                                                                                                                                                                                                                                                                                       APPROVED:                       LS
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