Response to Council's Information Request · MCU14/0077

 

   
   
   
   
 

 
    
   

EXISTING AND REFURBISHED
CONCRETE OVERFLOW CHAMBER
WITH EXISTING 375RCP TO

 

 

Ww
O
O
O
500 WIDE BATTER SURROUNDING BIO
RETENTION SYSTEM > 0
NEW HI-FLOW BYPASS CHAMBER DISCHARGING TO RETENTION TANKS
NOTE:
SET OVERFLOW WEIR LEVEL TO 4.520 AND DISCHARGE OVERFLOW DIRECTLY TO
RETENTION TANKS VIA #225
$225 FROM TANKS
NOTE:
THE ENTIRE TRENCH OF THE BIO RETENTION
SYSTEM SHALL BE WRAPPED WITH AN IMPERVIOUS 32sqm BIO RETENTION VEGETATED TREATMENT
LINER SURFACE AREA
BIO RETENTION SYSTEM (BRS)
PLAN VIEW_1:100
TYPICAL:
%100 SLOTTED PVC WITH
CLEANOUT TO SURFACE
USING SCREW CAP.
USE 2*45deg BEND AT
INVERT.
DO NOT USE 90deg BEND! TYPICAL 9100 SLOTTED PVC
WITH CLEANOUT TO SURFACE
PROVIDE 1:200 GRADING OF
DRAINAGE LAYER TOWARDS
CHAMBER.
NOTE:
ONLY PRE FABRICATED SLOTTED
BIO RETENTION SYSTEM LEVEL PIPE IS PERMITTED! SLOTS
PRODUCED BY HELP OF A
SCHEDULE GRINDER CAN NOT BE
TOLERATED!
EDGE OrRear Ne 4.570 BIO RETENTION SYSTEM

SURFACE

SUBDRAINAGE LAYOUT 1:100

 

WEIR LEVEL BYPASS
CHAMBER

 

WEIR LEVEL OF EXISTING
CHAMBER

 

SURFACE LEVEL OF FILTER
LAYER

 

 

LAWFUL POINT OF DISCHARGE 6000

  

ACCESS HATCH REFER
TO MANUFACTURER

4.570

 

 

INVERT LEVEL OF FILTER
LAYER

 

 

 

 

 

 

 

 

INVERT LEVEL OF TRASITION
LAYER

 

 

 

 

INVERT LEVEL OF DRAINAGE
LAYER

 

 

 

 

 

 

 

 

 

4.520
DRIVEWAY /CARPARK
4.570 / ACCESS HATCH REFER
TO MANUFACTURER
4.320 :
ho 4 a « “ ‘4
‘ a
3.920 OC)
Va Sf | 6225 OVERFLOW FIXED
Va 9225 COMMUNICATION 1 peanceTs °° ‘
3.820 8225 FROM |, PIPE AT HIGH LEVEL -
BYPASS CHAMBER 100 COMMUNICATION “ SLOW LEAK WITH 6100
PIPE AT LOW LEVEL Ihe ORIFICE PLATE
3.620 TO ; Lhe \
3.220 Ly a s— x 7 z
ia : oo 2 yl. ee De 7 7 v4

 

   
  

EXISTING 375RCP

—
—\
o
O

  
  
  
 
 
 
 
 
 
    
  

   

 

 

 

 

 

 

 

EXISTING GRATED FIELD INLET TO BE-
MADE GOOD FOR FUNCTION AS
OVERFLOW AND HIGH FLOW BYPASS
CHAMBER, CONCRETE WITH WEIR AT
SL4.520 AND HINGED, ELEVATED
GRATE.

THE ENTIRE BRS TO BE WRAPPED————

IN A WATERPROOF MEMBRANE

NOTE:

BATTER OUTSIDE OF-
FILTER MEDIUM
SURFACE AREA.
PROVIDE ROCKS
AND PEBBLES.

 

200 EXTENDED DETENTION DEPTH

 

4.570

 

600 FILTRATION nn

  
 

 

3.620

 

100 TRANSITION LAYER

 

3.420

 

 

200 DRAINAGE LAYER—————__!

 

 

 

  
 

@225 FROM ON SITE
RETENTION TANKS

 

   

 

XISTING 375 RCP
LAWFUL POINT OF DISCHARGE

 

 

ALL MANHOLE AND CHAMBER
PENETRATIONS REQUIRE
BEING SEALED WITH NON

SHRINK GROUT

SO AS TO

ENSURE NO LATERAL

RAL BIO RETENTION SYSTEM (BRS) — Chanesr, Ye OMARDS

GROUND WATER

AFTER CONSTRUCTION.

WHEEL STOPPER

PARKING DETAIL WITH WHEEL STOPPER

 

EXISTING STORMWATER
CHAMBER. MAKE GOOD AND
RISE WEIR LEVEL TO
AHD4.570. CHAMBER WEIR
LEVEL HAS TO BE 50mm
ABOVE BYPASS CHAMBER
WEIR LEVEL!

4.570

 

| 0 RETENTION SYSTEM

 

@225 TO LAWFUL POINT
OF DISCHARGE

 

 

 

 

INVERT LEVEL OF BYPASS
CHAMBER

 

3.220

 

 

 

 

RETENTION TANK ASSEMBLEY DETAIL

 

SCALE: NTS

4 a.
ay4 4
ae

 

 

 

 

EXISTING 375 RCP
LAWFUL POINT OF DISCHARGE

FLOW (LITRES/SEC.)

NTS

SECTION
SCALE 1

BIO RETENTION SYSTEM NOTES

CROSS SECTION

    
   

50

TYPICAL 100 SLOTTED PVC
WITH CLEANOUT TO SURFACE
PROVIDE 1:200 GRADING OF

NOTE:

ONLY PRE FABRICATED SLOTTED
PIPE IS PERMITTED! SLOTS
PRODUCED BY HELP OF A
GRINDER CAN NOT BE
TOLERATED!

CATCHMENT: HARDSTAND 806m?

e FILTER MEDIUM AREA:

e FORE BAY AREA:

e PROVIDE #100 SUBSOIL DRAINAGE WITH
CLEAN OUT POINTS AS INDICATED.

200 EXTENDED DETENTION DEPTH

  

 

 

  

 

 

 

 

 

 

 

 

40m?
0.6m?

ATTER OUTSIDE OF
FILTER MEDIUM
SURFACE AREA.
PROVIDE ROCKS
AND PEBBLES.

 

 

    
   

 

 

 

 

 

 

 

 

 

 

 

 

 

4.570 4.520 4.570
Ne ,
SNe
[Jo THE ENTIRE BRS TO BE WRAPPED
IN A WATERPROOF LINER
9225 FROM TO ON SiTtE-———"* : 3.620
RETENTION TANKS yy 3.420
600 FILTRATION LAYER DISCLAIMER — ENSURE ORIGINAL SIZE DRAWING IS USED
100 TRANSITION LAYER FOR ASSESSMENT, TENDERING AND CONSTRUCTION.
200 DRAINAGE LAYER Amd Description Date
| 500 | 3088 500 |
BIO RETENTION SYSTEM (BRS)
CROSS SECTION
SECTION
SCALE 1: 50 C | NEW ARCHITECTURAL LAYOUT; RESPONSE TO RFI [15-10-14
B | NEW ARCHITECTURAL LAYOUT 11-09-14
A_|INVERT LEVEL CHANGED; NOTES CHANGED 03-06-14
Issue Notes Date
For Development Approval] X 21-05-14
For Building Approval x 21-05-14
For Tender
60 ——— NO RETENTION For Construction
50 WITH RETENTION As Constructed
40
a ~
30
a
20 <= : wh
. 7 _————— = —_ Hydraulic 3:
7 ~ =—._]
0 Y . .
2 4 6 8 10 12 14 16 18 contact: Reinhold Koenning MiEAust RPEQ No 7023
PO Box 181
TIME (MINS.) Moffat Beach, QLD, 4551

 

 

 

STORMWATER HYDROGRAPH THROUGH PROPOSED MITIGATION TANK

 

PEAK FLOW MITIGATION THROUGH ON SITE RETENTION TANK

 

TOTAL PROPOSED TANK VOLUME:
TANK FOR RETENTION:

RUNOFF & DETENTION CALCULATIONS:
SITE AREA:

NEW IMPERVIOUS AREA:

ROOF CATCHMENT TO TANK:

MAX INFLOW TO TANK AT DESIGN Q20:

MAXIMUM EVENT:
TIME OF CONCENTRATION:
INTENSITY:

PRE DEVELOPMENT PEAK RUNOFF:
PEAK RUNOFF POST DEVELOPMENT:
REDUCTION REQUIRED:

RETENTION VOLUME REQUIRED:
RETENTION VOLUME PROVIDED:

REDUCTION PROVIDED:

10,000 LITRES

1701sqm
1453sqm
647sqm
43L/sec
Q100

Smin
326mm/hr

136L/s
151L/s (NO RETENTION)
16L/sec

8,000 LITRE
10,000 LITRE

23L/s

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

email: [email protected]

PH: (07) 5491 4333 FX: (07) 5491 4233

 

 

 

 

 

 

 

 

 

CLIENT :
WILSON CLARK CONSTRUCTIONS
ARCHITECT :
LL COOL ARCHITECTURE J
(PROJECT: 10/100 RENE STREET >
NOOSAVILLE
DRAWING TITLE:
\
STORMWATER
QUALITY&QYANTITY
DETAILS
Design RH, Checked | Cro [Date 21-05-14 | Dwg, No. AMD.
SCALE: 1 : 100 on At UNO.| 3 Of 6 2864-OP3 Cy

 

 

 

RPD:— LOT 10 SP 230643