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Stormwater Management Plan
Attached to the e-mail MCU18/0097 - Response to Further Advice - Traffic and Stormwater - 115 Eumundi Noosa Rd, Noosaville.
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Plans and drawings
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NOTES: SET AT RL 10.06
RETAINING WALL SURROUNDING BASIN TO
· DO NOT SCALE THIS DRAWING TAKE FIGURED DIMENSIONS ONLY 1x Ø115 MID FLOW OUTLET
BE SET TO A MINIMUM HEIGHT OF RL 10.67
· ALL DIMENSIONS IN METERS UNLESS NOTED OTHERWISE PIPE SET AT RL 9.58
2.0m
N
FILTRATION LAYER:
1x Ø300 LOW FLOW OUTLET
1. MATERIAL TO CONSIST OF SANDY LOAM OR EQUIVALENT
PIPE WITH Ø245 ORIFICE SET
MATERIAL.
AT RL 9.14
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. DETENTION BASIN PARAMETERS
6. DEPTH TO BE 800mm OR GREATER FOR TREE PLANTING. A
DETENTION BASIN SURFACE AREA 100m²
TRANSITION LAYER: -
1. MATERIAL TO CONSIST OF SAND/COURSE SAND MATERIAL. DETENTION DEPTH (INCLUDING 300mm FREEBOARD) 1.53m
2. TYPICAL PARTICLE SIZE DISTRIBUTION OUTLET ORIFICE DIAMETER
% PASSING: 1.4mm 100% (AT FIELD INLET INVERT RL 8.14) 245mm
1.0mm 80% OUTLET PIPE DIAMETER 300mm
0.7mm 44%
0.5mm 08% DETENTION VOLUME 133m³
MID FLOW OUTLET PIPE
DRAINAGE LAYER: 115mm
(THROUGH RETAINING WALL AT RL 9.54)
1. MATERIAL TO CONSIST OF 2 - 5mm GRAVEL.
HIGH FLOW SPILLWAY
PERFORATED PIPE: 1m
(THROUGH RETAINING WALL AT RL 10.06)
1. MINIMUM GRADE OF 0.5%
2. MAXIMUM SPACING * 1.5m CENTRE FOR BASINS < 100m² MINIMUM RETAINING TOP OF RETAINING WALL HEIGHT RL 10.67m
* 2.5m CENTRE FOR BASINS > 100m²
20m² BIORETENTION BASIN.
CONSTRUCTION PHASE:
BIORETENTION SURFACE AT 80m² ADDITIONAL DETENTION
1. COVER FILTRATION LAYER WITH GEOTEXTILE, 50mm TOPSOIL &
AT RL 8.84 AREA AT RL 9.14
TURF STRIPS PERPENDICULAR TO FLOW.
2. GEOTEXTILE TO BE REMOVED ONLY WHEN UPSTREAM SEDIMENT
LOADS ARE CONTROLLED.
0.1m EXTENDED DETENTION FOR
CONCRETE KERB TYPE B1 PERMEABLE PAVEMENT 2 2 TO 5mm AGGREGATE TO BE SWEPT
LEGEND: IN ACCORDANCE WITH INTO JOINTS IN POROUS PAVEMENT
PERMEABLE PAVEMENT NOTES
IPWEA STD DRG RS-080 1. BEDDING AGGREGATE MATERIAL SHALL MEET MATERIAL AND GRADING
FILTRATION LAYER, DEPTH = 400mm 80mm PERMEABLE PAVER. PAVER DEPTH
TO BE CONFIRMED BY SUPPLIER.
COMPATIBILITY CRITERIA IN TECHNICAL SPECIFICATION FOR THE WORKS
TRANSITION LAYER, DEPTH = 100mm AND/OR THE PAVEMENT MANUFACTURERS TECHNICAL SPECIFICATIONS.
2 TO 5mm BEDDING AGGREGATE, CONSTANT
2. SUB-GRADE TO BE RIPPED/HARROWED PRIOR TO PLACEMENT OF
DRAINAGE LAYER, DEPTH = 200mm DEPTH (50mm MIN). REFER TO NOTE 1
GEOTEXTILE FILTER.
3. REFER TO MANUFACTURERS SPECIFICATION FOR MAXIMUM TRAFFIC
400mm DEPTH SAND. SAND TO CONSIST OF AN LOADING.
AVERAGE PARTICLE SIZE OF 1mm
4. UNDER-DRAINAGE - SLOTTED PVC PIPE (uPVC OR SIMILAR TO AS2439.1) OR
PERMEABLE GEOTEXTILE FILTER. APPROVED EQUIVALENT, 0.5% MINIMUM GRADE, INSTALLED AT 1500mm
MAXIMUM CENTRES. DIAMETER TYPICALLY 100-500mm. PIPE JOINS SHOULD
Ø100mm PERFORATED PIPE
CONNECTED TO STORMWATER PREPARED SUB-GRADE. BE GLUED WITH PLUMBING CEMENT. UNDER-DRAINAGE SHALL BE SEALED
1.5m c/c
DRAINAGE SYSTEM. REFER TO NOTE 2. INTO PITS USING GROUT OR OTHER APPROVED WATERTIGHT SEAL. 50mm
REFER TO NOTE 4. 5.4m DRAINAGE LAYER (FINE AGGREGATE) COVER OVER SLOTTED PIPE.
PERMEABLE PAVEMENT TYPICAL SECTION B
N.T.S. P007
11.00
10.67 10.67
10.47
FIELD INLET, VEGETATION TO LANDSCAPE PROVIDE CAPPED
ARCHITECT'S SPECIFICATION INSPECTION OPENING MAX DETENTION
FOR HIGH FLOW ADDITIONAL DEPTH 1.23m
BIO PONDING LEVEL RL9.14m
9.90 DETENTION AREA
BIO PONDING DEPTH (0.3m)
9.14 WATER SURFACE LEVEL 9.14
8.84
REPORT ISSUE NATIVE SOIL
100mm DIA MAX PIPE, VERTICAL
NOT FOR CONSTRUCTION SECTION NOT PERFORATED
8.14
100mm DIA MAX, HORIZONTAL PIPE IS
CONTRACTOR TO CONFIRM AND 4.05m
TO BE PERFORATED, WITH 0.5% FALL 13.7m
LOCATE ALL EXISTING SERVICES PRIOR
TO COMMENCEMENT OF WORKS Ø230 ORIFICE ON SECTION A
Ø300 OUTLET PIPE N.T.S. -
Rev. Date Revision Details Drn App.
Builders Name Client Name Project Details Drawing Title: Drawn Signed Date Scale: Sheet Size
A1
DKC Project Number
Odyssey Consulting Group Designed Signed Date
K4277
Structural and Civil Engineers
PROPOSED CAR PARK
GOOD SHEPHERD STORMWATER DETENTION AJP
115 EUMUNDI ROAD
Odyssey Consulting Group
Suit 5 Corporate House
ABN 81 246 994 126 Telephone: +61 7 5575 7744
Facsimile: +61 7 5641 7992 LUTHERAN COLLEGE AND BIO-RETENTION DETAILS
Checked Signed Date
D 14-02-19 ISSUED FOR REPORT EG AP 155 Varsity Parade Varsity Lakes Q 4227
PO Box 4579 Robina Town Centre
w:odcconsulting.com.au
Email: [email protected]
NOOSAVILLE
C 05-11-18 ISSUED FOR REPORT SS AP Drawing No. Rev.
Queensland Australia 4230
Approved Signed Date
B 19-10-18 ISSUED FOR REPORT MGD AP
A 14-03-18 ISSUED FOR REPORT DKC AT
P010 D
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