Projects

Mullet Creek, West Dapto Package 3 (D4C)

Duration:
Oct 24 – Aug 25

Scope:

  • 1.2kms x DN600 GRP
  • 2 x gravity main lines discharging  to an existing trunk carrier in Kembla Grange 
  • Pipelines & manholes cast insitu
  • 35 x manholes (incl 1 x 2400 dia manhole)
  • Coffer dam construction
  1. Greenfield environment
  2. Working at heights – Liner inside manholes
  3. Inclement weather & dewatering
  4. Deep excavations – trenches > 1.5m – risk of engulfment (5-8m deep)
  5. Confined spaces
  6. Poor ground conditions
  7. Fatigue management – managing 4 x 12 hour shifts to prepare the site for an imminent flood.
M7-M12 Integration Project. (Photo courtesy of John Holland)

Duration:
Nov 23 – July 25

Scope:

CN196813PW

  • 520m DN500 DICL
  • 455m OD559 SCL Concrete encased
  • 52m Under bore DN750 RCP Jacking Pipe and OD559 SCL
  • 238m of smaller mains
  • 2 x DN500 Connections

CN196814PW /  CN196817PW

  • 896m DN150 DICL/PVC
  • 539m OD168 SCL Concrete encased
  • 4 x DN150 Connections

CN196815PW

  • 80m DN450 DICL
  • 151m OD559 SCL Concrete encased
  • 29m Under bore DN750 RCP Jacking Pipe and OD559 SCL
  • 18m of smaller mains
  • 2 x DN450 Connections

CN196816PW

  • 450m DN300 DICL
  • 111m OD324SCL Concrete encased
  • 124m OD406 SCL Concrete encased
  • 56m Under bore/RCP Jacking pipe
  • 1 x DN300 Connection
  • 1 x DN375 Connection
  1. 56-hour continuous weekend shutdown in March 24 to cross the Tank Road access road to minimise traffic disruption to Tank Road reservoir.
  2. Large project working alongside other contractors and working to the overall John Holland program.
  3. Fatigue management:
    • 10 hour shutdowns – including a complicated DN500 shutdown feeding the main reservoir.
  4. Nightworks
French Avenue, Bankstown (Canterbury-Bankstown Council)

Duration:
Jun 23 – Mar 24

Scope:

Stormwater

Jacob Street Works (North of French Avenue)

Connection to Existing Culvert (Downstream)

Installation of DN450 & DN750 Pipework 

Construction of 3 x Grated Gully Pits B1, B2, B3

Connection to Existing Upstream DN450 Pipe 

French Avenue Works (South Side)

Connection to Existing Culvert (Downstream)

Installation of the 900×900 RC Box Culverts 

Construction of Large Capacity Inlet Pit C1

Adjust Grate & Lintel to Pit D1

French Avenue Works (North Side)

Connection to Existing Culvert (Downstream)

Installation of the 900×900 RC Box Culverts 

Installation of DN750, DN600 & DN300 RCP (Reinforced Concrete Pipes)

Construction of SAG Gully Pits A1, A2, A3

Connection to Existing Upstream DN600 & DN250 Pipes

Potable Water Main (French Avenue)

Installation of DN200 DICL (Ductile Iron Cement Lined) pipework underneath the stormwater asset.

  1. Working in close proximity to residences and businesses including a childcare centre.
  2. Working near live traffic – road users did not obey the detours as per the approved traffic management plan. Additional traffic control required throughout the day and night.
  3. Overcoming an unexpectedly concrete encased water main, obtaining approval to isolate the section of water main being deviated by installing temporary flushing bends as no property water supply was impacted.
  4. Working with Council to re-design of the stormwater alignment to avoid the Ausgrid power pole and the zone of influence.
41-51 Waratah Street, Kirrawee (Pitt Capital Partners)

Duration:
Sept 23 – Mar 24

Scope:

Wastewater:

  • 183m x DN150 uPVC SN8 (concrete encasement)
  • DN1200 maintenance holes

Stormwater:

  • 5m x DN375 pipe
  • 43m x DN525 pipe
  • 36m x DN600 pipe
  • 5m x DN675 pipe
  • 4 x gully pits

Civils / Power

  • Installation of handrail
  • Permanent restoration including kerb, guttering, footpath and cycleway
  • ASP1 works

Managing development approvals and compliance.

  1. Working in the vicinity of high pressure gas
  2. Tight program – developer sunset clauses
  3. Poor fill – hard rock & soil containing asbestos
  4. Deep excavation
  5. Noise & vibration from rock hammering requiring vibration monitoring
  6.  Confined spaces.
Sydney Science Park (Photo courtesy of Guidera O'Connor)

Duration:
Apr 24 – Nov 24

Scope:

Pipework

  •  All facility pipework
  • Emergency pipework DN50-1200mm
  • In-ground pipework incl Hydraulic line excavation for Building A & B (DN150)
  • Crossing between building C and batter to allow for irrigation
  • Penetrations & connections
  • Testing & commissioning
    Civils
  • Civil, roads, pavements & footpaths works including slipform, asphalting, linemarking
  • Capark lighting conduits
  • Concrete works – reservoir tank slan
  • Pit construction
  • Electrical & civil work
  • All underground services & utilities – water, sewer & electrical.
 
  1. Confined spaces
  2. Working near overhead power
  3. Hot works
  4. Deep excavation
Mount Ousley Interchange (Photo courtesy of TfNSW)

Duration:
July 24 – Dec 25

Scope:

PWG performed the scope of works for Fulton Hogan on behalf of TfNSW. This flagship project shows PWG’s expertise with water & sewer mains for tier one customers.

The scope of work included:

62m x DN100 DICL

110m x DN180 HDPE

16m x DN300 u.P.V.C (concrete encasement)

150m x DN225 u.P.V.C SN8

5 x manholes

 

  1. HDD across the Princes Highway.
  2. Excavation & shoring of 5m deep launch pits within road reserve, including traffic management.
  3. Night shift.
  4. Tight working space, shared with other contractors.
  5. Flow management transfers/connections.
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