Our Clients

Timbermass Constructions Projects Completed and Ongoing

4 Malabar Alliance Joint Venture project between John Holland/UGL.  Scope includes new and modifications to existing structures above and underground at the Malabar Wastewater Treatment Plant.

Theiss/John Holland/ Dragados Joint Venture

North West Rail Link.
Scope includes capping beams, retaining walls and misc structures at the Epping and Cheltenham facilities.

Leighton Contractors
M2 Vimera Embankment Stabilisation Works
Reinforced concrete restraint blocks, retaining walls and drainage structures.
Contract Value $2.5 million plus.
John Holland Engineering Glenfield to Leppington Rail Project
LV and HV Electrical pits, stabling yard works, station works, retaining walls, capping beams, ground slabs, cess drains.
Contract Value $3 million plus.
Leighton Contractors M2 Upgrade project
Lengthening and widening of Christie Road overbridge, various roadworks, F Type Kerbs, retaining walls, culverts, capping beams and drainage structures.
Contract value $4 million plus
PSP, John Hollands/Sydney Water Alliance Cowan Sewage Scheme Upgrade – John Holland/Sydney Water Joint Venture.
Construction of reinforced concrete chemical dosing unit, various building slabs, concrete to roadways, hardstand areas and drainage structures.
PSP, John Hollands/Sydney Water Alliance Appin Sewage Scheme Upgrade
Construction of reinforced concrete bioreactor and water/sewage tanks, various building slabs, concrete to roadways, hardstand areas and drainage structures.
Leighton Contractors Glenfield to Liverpool Sewage Treatment Upgrade
Construction of reinforced concrete sewage tanks and surrounding structures
Delaney Civil Engineering Various Bridgeworks
Single and multispan concrete bridges at Wollongong, Yass, Cattai, Hawkesbury and Bargo.  
Downer Engineering Mangoola Coal Mine, Muswellbrook Hunter Valley  
Construction substation, electrical structures and blast walls.
Citywide Civil Engineering Sydney International Airport 
Extension to international airside taxiway, formwork concrete and reo to drainage structures, edgeform to taxiway hardstand.
Nace Civil Engineering. Sydney International Airport 
Extension to international airside taxiway, formwork concrete and reo to drainage structures, edgeform to taxiway hardstand
Abigroup Contractors Windsor Floodplain Evacuation Route 
Construction of parapet kerb to elevated roadway.
Hannas Civil Engineering Prospect Mini Hydro Scheme 
Construction of Hydro Electric Concrete Inlet and Outlet Chamber and surrounding structures.
PSP, John Hollands/Sydney Water Alliance Three Towns Sewage Upgrade
Construction of reinforced concrete pump stations, part design and construct contract and surrounding structures
Contract Value $800,000 plus
Infinity Constructions Sydney Airport Recycled Water Plant
Construction of reinforced concrete bioreactor to international and surrounding structures
Integral Energy Substation, Unanderra Construction of reinforced concrete culvert for cable run, precast units and surrounding structures
Contract value - $1,400,000
Shell Clyde refinery Basel Polypropylene Cooling Tower
Construction of base support structure for large cooling tower plant.
Contract value - $600,000
John Holland Engineering Cronulla to Sutherland Rail Duplication Construction of bridge abutments, walls, approach slabs, retaining walls and capping beams.
John Holland/Sydney Water Joint Venture Brooklyn and Dangar Island Sewerage Scheme 
Construction of reinforced concrete bioreactor and water/sewerage tanks, various building slabs, concrete to roadways, hardstand areas and drainage structures.
Contract value - $1.02million
Theiss John Holland Joint Venture Lane Cove Tunnel
Construction of various concrete structures including major retaining walls, capping beams, pits, spilldrains, parapet walls and others.
Contract value $4 million+
Shell Refining Shell Oil Refinery, Rosehill
Construction of base and walls to 600m of tank farm bund wall.
Mogas Improvement project, shutdown works, maintenance works
Contract Value $2 million +
John Holland Water Prospect Reservoir 
Construction of reinforced concrete inlet structure and associated works, headwalls and drainage structures, concrete spillway, roadway and precast culvert installation.

p: (02) 9688 3414
e: office@timbermass.com.au  
a: 144 Toongabbie Road, Toongabbie, NSW, Australia

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