Stormwater Management Plan

 

‘00n1

NOTES:

© DONOT SCALE THIS DRAWING TAKE FIGURED DIMENSIONS ONLY
ALL DIMENSIONS IN METERS UNLESS NOTED OTHERWISE

FILTRATION LAYER:

1. MATERIAL TO CONSIST OF SANDY LOAM OR EQUIVALENT
MATERIAL.

2. MATERIAL TO HAVE 5% - 10% ORGANIC CONTENT IN
ACCORDANCE WITH AS12894.1.1

3. MATERIAL TO HAVE AN AVERAGE PARTICLE SIZE (D50) OF 0.45mm.

4. SATURATED HYDRAULIC CONDUCTIVITY BETWEEN 50 - 200mm/hr
DETERMINED IN ACCORDANCE WITH AS 4419 -1998 APPENDIX H
SOIL PERMEABILITY.

5. pH BETWEEN 6 &7.

6. DEPTH TO BE 800mm OR GREATER FOR TREE PLANTING.

TRANSITION LAYER:
1. MATERIAL TO CONSIST OF SAND/COURSE SAND MATERIAL.
2. TYPICAL PARTICLE SIZE DISTRIBUTION
% PASSING: 1.4mm 100%
1.0mm 80%
0.7mm 44%
0.5mm 08%

DRAINAGE LAYER:
1. MATERIAL TO CONSIST OF 2- 5mm GRAVEL.

PERFORATED PIPE:

1. MINIMUM GRADE OF 0.5%

2. MAXIMUM SPACING * 1.5m CENTRE FOR BASINS < 100m?
* 2.5m CENTRE FOR BASINS > 100m?

CONSTRUCTION PHASE:

1. COVER FILTRATION LAYER WITH GEOTEXTILE, 50mm TOPSOIL &
TURF STRIPS PERPENDICULAR TO FLOW.

2. GEOTEXTILE TO BE REMOVED ONLY WHEN UPSTREAM SEDIMENT
LOADS ARE CONTROLLED.

LEGEND:
[J FILTRATION LAYER, DEPTH = 400mm
UZ __ TRANSITION LAYER, DEPTH = 100mm

 

 

 

 

 

=
S

   
 
 

 

 

 

 

  

 

—_—

RETAINING WALL SURROUNDING BASIN TO

/ BESET TOAMINIMUM HEIGHT OF RL 10.40

 

1x @110 MID FLOW OUTLET
PIPE SET AT RL 9.63

/ 1x @150 HIGH FLOW OUTLET
PIPE SET AT RL 9.95

 

 

 

a} r I

     
 
 
 
  
 

 

 

 

 

 

 

 

 

 

 

DETENTION BASIN PARAMETERS
i DETENTION BASIN SURFACE AREA 100m?
i | DETENTION DEPTH 4.26m
OUTLET ORIFICE DIAMETER 10
i (AT FIELD INLET INVERT RL 8.14) ™m
iE OUTLET PIPE DIAMETER 300mm
" DETENTION VOLUME 126m?
A MID FLOW OUTLET PIPE 10
ll (THROUGH RETAINING WALL AT RL 9.63) mm

HIGH FLOW PIPE
A (THROUGH RETAINING WALL AT RL 9.95) 150mm
MINIMUM RETAINING TOP OF RETAINING WALL HEIGHT | RL 10.40m

 

 

 

 

 

 

 

 

== 20m? BIORET
— BIORETENTION SURFACE AT
ATRL 8.84

CONCRETE KERB TYPE B1
IN ACCORDANCE WITH:
IPWEA STD DRG RS-080

ENTION BASIN. | == 80m? ADDITIONAL DETENTION

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

AREA AT RL 9.14

 

0.1m EXTENDED DETENTION FOR
PERMEABLE PAVEMENT 2 2 TO 5mm AGGREGATE TO BE SWEPT
INTO JOINTS IN POROUS PAVEMENT

80mm PERMEABLE PAVER. PAVER DEPTH

1.

TA ta 710 BE CONFIRMED BY SUPPLIER.

 

 

 

 

 

    

 

 

 

 

 

 

 

 

   

 
 
 
   

 

 

 

 

 

 

 

 

 

 

PERMEABLE PAVEMENT NOTES

BEDDING AGGREGATE MATERIAL SHALL MEET MATERIAL AND GRADING
COMPATIBILITY CRITERIA IN TECHNICAL SPECIFICATION FOR THE WORKS
AND/OR THE PAVEMENT MANUFACTURERS TECHNICAL SPECIFICATIONS.

 
 
    

 

 

 

   
  

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

   
 

 

 

 

 

 

 

 

 

 

 

KOZTI-S_ X-KU2TT-OCG:

X_KA2T-BP_s X.

O10 dvg XREF

   

 

 

 

 

 

 

 

 

 

 

 

 

   

 

 

 

 

 

 

: I I I I I I 2 TO 5mm BEDDING AGGREGATE, CONSTANT 2. SUB-GRADE TO BE RIPPED/HARROWED PRIOR TO PLACEMENT OF
Scr} DRAINAGE LAYER, DEPTH = 200mm DEPTH (50mm MIN). REFER TO NOTE 1 GEOTEXTILE FILTER
ISAS 3, REFER TO MANUFACTURERS SPECIFICATION FOR MAXIMUM TRAFFIC
LOADING
oe pT Ne Nor a NSST OFAN 4. UNDER-DRAINAGE - SLOTTED PVC PIPE (uPVC OR SIMILAR TO AS2439.1) OR
ee APPROVED EQUIVALENT, 0.5% MINIMUM GRADE, INSTALLED AT 1500mm
P< PERMEABLE GEOTEXTILE FILTER. MAXIMUM CENTRES. DIAMETER TYPICALLY 100-500mm. PIPE JOINS SHOULD
NX BE GLUED WITH PLUMBING CEMENT. UNDER-DRAINAGE SHALL BE SEALED
9100mm PERFORATED PIPE Ne INTO PITS USING GROUT OR OTHER APPROVED WATERTIGHT SEAL. 50mm
CONNECTED TO STORMWATER 1.5m ole OREM WONOTE DRAINAGE LAYER (FINE AGGREGATE) COVER OVER SLOTTED PIPE.
DRAINAGE SYSTEM .
REFER TO NOTE 4. 5.4m
PERMEABLE PAVEMENT TYPICAL SECTION /B
NTS POO7
ey) ACCESS LADDER
FOR MAINTENANCE
40 zo \_ a 10.40
FIELD INLET VEGETATION TO LANDSCAPE PROVIDE CAPPED MAX DETENTION | |
FORHIGH FLOW ARCHITECT'S SPECIFICATION INSPECTION OPENING DEPTH 1.26m =.
BIO PONDING LEVEL RL9.14m — AOE AREA
— BIO PONDING DEPTH (0.3m)
RR it WATER SURFACE LEVEL 9.14
PI Ae TT - yew
REPORT ISSUE AY
SS 2 — NATIVE SOIL
XR
NOT FOR CONSTRUCTION Ara : 400mm DIA MAX PIPE, VERTICAL
5A et SECTION NOT PERFORATED
RES S28.
YY
ey Ys 5 400mm DIA MAX, HORIZONTAL PIPE IS
CONTRACTOR TO CONFIRM AND “Sf RRRKARRRR RE 4.05m TO BE PERFORATED, WITH 0.5% FALL 437m
¥ LO A — ft
LOCATE ALL EXISTING SERVICES PRIOR Noss Vv
TO COMMENCEMENT OF WORKS \___ 8210 ORIFICE ON SECTION
9300 OUTLET PIPE NTS
Rev Date Revision Details Dm | App. Builders Name Client Name. Project Details Drawing Tite: Drawn Signed Date Scale: fre ‘Size Al
@ Odyssey Consulting Group PROPOSED CAR PARK Designed | Sned Date K4277
Structural and Civil Engineers GOOD SHEPHERD 415 EUMUNDI ROAD STORMWATER DETENTION AJP
Odyssey ABN 81 246 994 126 Teloonore: +61 75575744 LUTHERAN COLLEGE AND BIO-RETENTION DETAILS Checked | Signed Date
{EE Voy Poe Vr Lekes 0227 oilman co NOOSAVILLE °
© | 05-17-48 | ISSUED FOR REPORT ss | AP 20 ox 4579 Rosin Town Cente ral: gldcosst@ococonsuting com au rawing No. Rev.
B 19-10-18 | ISSUED FOR REPORT MGD | AP Torn or by ary wean Approved Signed Date P01 0 Cc
7A [14-008 _[ ISSUED FOR REPORT DKo_[ AT