Revised Drawings SCG 31131-OPW-2022.061.01-Council RFI.pdf

                  Issue:




                                           Unit 1/11 Project Ave,
                                           Noosa Heads
                                           Ph (07) 5455 5604




                  DEBUILD T/A
                                           email:[email protected]
                                           web:www.scg-engineers.com
                                           ABN 40 098 481 899




                      Title:




                     Project




                     Date:       Drawn                Design

                      Checked:   Drg No.                        Rev.




Rev. - 10.06.16


[OCR of page images]
 

 

DRAWING SIZE — At

 

www.dialbeforeyoudig.com.au

SAY DIAL1100

yy BEFORE YOU DIG

 

  

 

 

 

900(W) GEO-FABRIC SILT FENCE,
FIXED TO SPIKES AND BURIED ——-
300 INTO STABLE GROUND.

 
   
  
 
    

SILT RETENTION

SILT RETENTION FENCES PRIOR TO

 

IS TO BE CONSTRUCTED ALONG THE

WITHIN THE ALLLOTMENT MUST DRAIN

 

1200(L) 50 SQ. HDWD
SPIKES, 1800 CTRS DRIVE

600 INTO GROUND. ENTER NIEGHBOURING ALLOTMENTS

THROUGH THE USE OF SURFACE BUNDING

OR SCOUR PROTECTED DRAINS. THE FENCE
SILT FENCE DETAIL MUST REMAIN IN PLACE UNTIL SUCH TIME

THAT FINISHED LANDSCAPING AND
DRAINAGE MEASURES ARE INSTALLED.

EXISTING STORMWATER
INLET

PROVIDE SILT FENCE AROUND
INLET AS PER DETAIL ON THIS
SHEET.

PROTECTION OF EXISTING STORMWATER PITS

SILT/SEDIMENT BASIN MANAGEMENT

—The site foreman shall monitor and maintain the silt basin
throughout the works.

—Any trapped silt after storm events should be removed and the

substantial storm events.

— Trapped/detained silt laden stormwater can be flocculated with an
approved flocculating agent.

— Any breaching or overflow incidents should be reported immediately
to the Civil Engineer

   
 

WALL HT (RL 11.30m) PROVIDE EVENTS

SILT FENCE SURROUNDING PIPE
INFLOW

DETENTION BASIN
PERIMETER BLOCKWALLS

CONSTRUCTED FIRST TO
ESTABLISH THE
SEDIMENT BASIN RL11.05

THE CONTRACTOR IS TO INSTALL APPROVED
COMMENCING ANY EARTHWORKS. THE FENCE

LOWEST BOUNDARY AND RETURNED UP SIDE
BOUNDARIES TO ENSURE FULL STORMWATER
ENTRAPMENT. SURFACE RUNOFF FROM

TOWARDS THE FENCE AND SHALL NOT

GEOFABRIC_BLANKET

A34 BIDIM NON-WOVEN

Flow Rate @ 100mm head : 165Lt/m?/s
Pore Size : 75 Microns

protection measures maintained/reinstated to as built condition. Inflow Capacity @ 80m? ; 1300Lt/s
— The geofabric blanket should be removed and replaced after (GEOFABRICS.COM.AU)

   
 
 
   
  
   
  
   
   
  
 
 
 

 
  
  

SEDIMENT BASIN/SETTLING POND MIN 160m? PLAN
SETTLEMENT & STORAGE ZONE DEPTHS AS SHOWN

COIR LOGS STAKED ACROSS SWALE/DRAIN AND
EXTENDED BACK UP FLANKS TO RESTRICT FLOW
AROUND DAM EDGES. BUILDER TO ADJUST EXTENT
OR Ht OF DAM IF FLOW AROUND OCCURS. PROVIDE
LOOSE COBBLES ACROSS UPSTREAM EDGE OF LOG
TO AVOID UNDER FLOW

 

   
 

yyw
EXTEND BACK UP FLANKS ff ,
TO RESTRICT FLOW PROPOSED SWALE

AROUND DAM EDGES. Loy owoy OR TABLE DRAIN

COIR LOG CHECK DAM DETAIL

 
  
  

EXISTING SIDE ENTRY SILT FILTER SOCK TO
PIT OR SIMILIAR SURROUND GRATES AND
GRATED PIT SIDE ENTRY INTO PIT

KERB & CHANNEL

SILT FILTER SOCK DETAIL — STAND UP KERB

  
 
   
   
  
  
  
  
 

   
  
  
 

SEDIMENT BASIN DESIGN
The sediment basin has been designed using
the recommendations of IECA (International
Erosion Control Association). Refer to IECA
forBasin Management recommendations.
Basin type : D

RUSLE : 190 - 230 t/ha/yr

R (Y%, 5 day) : 54mm (R(85%))

Catchment : 0.4 ha

Cv : 0.60

Settlement Volume : 130m? (Depth: 750mm)
Storage Volume : 65m° (Depth : 375mm)
Basin Surface Area : 160m?

   
   
  
   
   
   
   

 

RAISE PIPE TO LEVEL INDICATED BUILDER TO REMOVE CAPTURED SILT AFTER STORM
TO ACHIEVE SETTLING DEPTHS, EVENTS OR AS REQUIRED.
TOP OF PIPE 10 BE BELOW WEIR PROVIDE CHEMICAL FLOCCULATION DURING STORM

___ FILLED SURFACE

  
   

 

   
 

   

 

 

 

 

UPGRADED SW PIPE FITTED
WITH A RISER AS SHOWN
STAKE RISER TO GROUND
TO STABILISE

TYPICAL SECTION SILT/SEDIMENT BASIN

mg

SEDIMENT BASIN FOREBAY FILTER

2/1508 SLOTTED PIPES ALONG FULL LENGTH OF FOREBAY
(REFER PLAN DR OW2.1) AND DRAINED INTO BASIN VIA
PENETRATIONS THROUGH BASIN WALL

BACKFILL SURROUND TO PIPES WITH 20-40mm NO FINES
GRAVEL, OVERLAY GRAVEL WITH GEOFABRIC BLANKET (A34
BIDIM NON-WOVEN), EXTEND UP EDGE BERMS & PIN TO
GROUND, BUILDER TO REPLACE GEOFABRIC AND REMOVE
CAPTURED SILT AFTER STORM EVENTS OR AS REQUIRED.

t
1 RLI1.10 |
1 wt
1 T
750mm MIN SEDIMENT er
SETTLEMENT ZONE _ — SEDIMENT SETTLEMENT ZONE” 1 RL10.30
— — — — — 1/4 tj WW __ __
375mm MIN. SEDIMENT SEDIMENT STORAGE ZONE | ! L9.9
STORAGE ZONE ~ t : SZ
1
"IL — RL 9.29
Vv

 

 
   
       
     
       
     
     
       
     
 

COMPACTED SOIL BUND TO
MINIMUM DIMENSIONS NOTED,
COVER IN BUILDERS PLASTIC
AND PIN SECURELY TO
GROUND

  

a

SURFACE BUNDING DETAIL

PROVIDE CHECK DAMS AS

1000mm MIN DETAILED
2
SY |
™——™ ON
“NNT [~~

TYPICAL SECTION CUTOFF SWALE

  

MAINTENANCE OF SILT PROTECTION

SITE FOREMAN TO MAINTAIN ALL SILT AND SEDIMENT PROTECTION
MEASURES THROUGHOUT THE DURATION OF THE PROJECT. ANY
BREACHING OF THE PROTECTION MEASURES MUST BE REMEDIATED
IMMEDIATELY AND REPORTED TO THE ENGINEER FOR CORRECTION
MEASURES. SILT RUNOFF PROTECTION IS TO BE MAINTAINED UNTIL
SUCH POINT THAT LANDSCAPING IS COMPLETED AND NOT
SUSCEPTABLE TO STORMWATER SCOUR.

DUST MOBILISATION FROM WIND ACTION
SITE CONTROL TO INCLUDE PROTECTION AGAINST THE CARRIAGE OF
SOIL SEDIMENT FROM WIND ACTIONS. SITE FOREMAN TO COVER ALL
STOCKPILES WITH HESION OR SIMILIAR, PROVIDE SILT FENCING
AROUND BASE OF STOCKPILES

   

SITE DRAINAGE — CONSTRUCTION
ENSURE GROUND PROFILE DURING CONSTRUCTION FALLS
TOWARDS THE CENTRE OF THE ALLOTMENT THEN TOWARDS
THE REAR BOUNDARY WHERE RUNOFF WILL DRAIN THROUGH
THE SILT POND & SILT FENCES. IN NO INSTANCE SHALL
THE ALLOTMENT DRAIN INTO NEIGHBOURING ALLOTMENTS.

 

 

 

SITE DRAINAGE — CONSTRUCTION

CONSTRUCTED STORM WATER PITS WITHIN THE SITE
ARE TO BE COVERED UNTIL THE SITE IS COMPLETED
OR TO BE FITTED WITH SILT PROTECTION MEASURES
TO THE APPROVAL OF THE ENGINEER

 

hannnt@—1_p——1_'}m1:200 @ All ppeg 5835 31131-OW2.2) A.

Project
89-93 Eumundi Noosa Rd,
NOOSAVILLE
Date: April 22 Drawn SR Design SR
Checked: Drg No. Rew.
:400 @ A3 ; S Richardson

 

A Basin details revised for Council RFI 1/06/22

 

Revision | Description Date

“FOR APPROVAL
DO NOT SCALE FROM THIS DRAWING

The design and associated details contained on this and associated
drawings are copyright and are not to be used or reproduced without
the written permission of SCG Consulting Engineers.

 

 

 

 

 

Unit 1/11 Project Ave,

j Noosa Heads
Ph (07) 5455 5604
email:[email protected]

web:www.scg-engineers.com
ABN 40 098 481 299

DEBUILD T/A

 

Title:

SILT AND SEDIMENT
CONTROL MEASURES