APPROVED Plans - APPROVED Plans - 4 Stevens St Sunrise Beach · OPW10/2029

 

CONSTRUCTION METHODOLOGY STATEMENT

NOTE: THE EXISTING SEWER MAIN THAT HAS TO BE REPLACED DOES NOT HAVE ANY
LIVE CONNECTIONS DISCHARGING INTO IT.

A N
3) eee Existing house ——

i ~ . Lot 673
Lot 675 aa RP4BIN
RP48IN aN eet

\ 25 L
Turf or %~_ Existing shed ~~

{ | /hydromulch to ane tee

1. Conform with the construction management plan on these Engineering design
plans
2. Attend prestart meeting with Unity Water and set a commencement date for
. . . construction.
Terminate enveloping pipe 1.0 from RP. ss . 3, Advise neighbouring property owners of the construction commencement date.
boundary to enable HCB to be installed. Existing sewer manhole will 4. Complete preparation works including clearing, grubbing and setout, stabilise
have to be exposed, as it is existing fencing panels where necessary.
currently not accessible. 5, At least one day prior to the commencement of construction, ensure that all
\ Location:and levels plotted materials necessary to complete construction have been delivered to site. The
1.25.10 be 15 from Council records. Prior materials shall include, but not be limited to the following:-
poe — 5 __£ 1500 Sewer 1. 24.98, to construction confirm a. Manhole components including manhole lid & sanded shorts,
exact invert levels and b. Bedding materials (a small quantity of 20mm screenings and geofabric should
confirm pipe gradient, be available at the Contractor's depot in the event that unsuitable material is
encountered at the base of the trench).
c. Enveloping pipe, sewer pipe, jointing materials, spacers and fixing tape.

6. Prior to the commencement date of construction, install the new sewer main

inside the enveloping pipe and stack on site in a suitable location to enable
Lot? expedient placement in the excavated trench. Seal off the ends of the pipes with
SP 106184 plastic and duct tape, ready for jointing the next day.

7, Have on hand a suitable trench de-watering pump including a spare pump in case
it is required. Ensure both pumps are fuelled and in good working order the day
before commencement of construction.

8 Excavate for the proposed sewer manhole and expose the existing sewer
pipeline, Mark the cut lines.

9. Excavate trench as far as excavator can travel commencing at the downstream
end and install the new sewer pipeline and enveloping pipe guided by the laser in
MH Ex/1, Assess the need for de-watering and possibility of unsuitable at the
trench base.

10. Utilise a bobcat or similar equipment to temporarily place and stockpile material
excavated from the trench, to place bedding material and to assist with
backfilling trenches to ground level.

|. Once the first section of trench has been backfilled, rotate the excavator and
trench from the upstream manhole back to meet the newly installed sewer main
and enveloping pipe.
12. Complete the connection of the new sewer main to the upstream sewer manhole.
13. Backfill the last section of the trench.
14. Pressure test the new sewer pipeline.
15. Complete the new sewer manhole and pressure test, grout annulus between new
sewer pipe and enveloping pipe.
16. Upon approval from Unity Water, remove downstream bung.
17. Remove old sewer pipes from site to a regulated waste facility,
= 18. Remove surplus spoil from site, reinstate any boundary fences and restore the
yo existing ground surface.

      

 

\/] distrubed i
_/~-ground areas. ano

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Remove existing sewer manhole and
construct terminal access chamber
(600 dia., Poo Pit) or approved
equivalent. Replace existing HCB’s
to serve existing lots. ~. SN
Remove existing 150% —

JL sewer and replace with |

Existing timber lean to. 4

 ~ 150 SN8 uPVC pipe

DS ppenp a shaft to ground
level to be removed

  

Lot 676
SP125656

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inside 250¢ ductile iron
enveloping pipe at new
levels. a

Existing gravel ——|

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RP. Bdy
RP. Bdy

Lot 699
Lot 698 RP48111

a SP227987

RP48111

 
     
   
   

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RP. Bdy

 

opw 102029 12 AUG 2010

      
 

   

STEVENS STREET
Existing sewer manhole ————
$.L.26.57
11.24.47 4 Ci
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g~ —[— —— Design: D.G.K. APPROVED CLIENT: MR. P BOYS COUNCIL REFERENCE:
Pty, Ltd. ABN 68 067 110 169 Drawn: D.G.K. Mgt oe. PROJECT: PROPOSED SEWER RECONSTRUCTION -

 

 
  

 

P.O. Box 8200, Maroochydore D.C. GED $558 — Dates = -ceier2010 RR aa at: 4 STEVENS STREET, SUNSHINE BEACH Sheet 2 of 3

Phone (07) 5479 4220 Fax (07) 5479 4228 MEMBER OF THE / Ig
THIS PLAN IS COPY PROTECTED BY GREENHAVEN PROJECTS PTY.LTD. | “MuNIcIPaL Sheckedy: LP vate: & Af =... LOT 698 ON SP227987 DRAWING No:

 

 

 

 

 

 

 

 

 

 

 

 

 

ENGINEERING Datum; AHD. SIZE A3 tite: DETAIL PLAN GH1839/10/02

|AUTOCAD FILENAME ; GH1839-01-03 dwg - DATE: 26/7/10 [ xREF's: AUSTRALIA,