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Location: Ipswich, QLD
Value: $10.7 million
Client: ADCO Construtions Pty Ltd
Duration: 12 months


ADCO Constructions awarded Shamrock Civil the contract to complete the bulk earthworks, civil drainage and carpark pavements for the Costco Ipswich development at Bundamba.

The scope of works included:

  • Earthworks including 30,000m3 Cut to Dispose, 31,000m3 Import to Fill, 8,000m3 Cut to Fill, 1250m3 of Detailed Excavation
    • The 8000m3 onsite cut to fill was completed in 5 days
    • The 30,000m3 cut to fill to adjacent site was undertaken over a two week period with an average of 2500m3 per day
    • The Import and placement of 31,000m3 of select fill commenced in the second week of the cut to fill and took approx. 3 weeks to complete, importing 1800m3 per day in truck and dogs
    • 2.5km of Stormwater drainage – pipes sizes varying from 225mm diameter to 1350mm diameter, other items included box culvert and acco drain installation
    • 80 no. Stormwater structures constructed
    • New watermain and gravity sewer to Wood St
    • Watermain Realignment to Ashburn Rd
    • 35,000m2 of Carpark/Road pavements
    • Construction of Wood St (new road)
    • Widening of Ashburn Rd
    • 125 no. CFA Piles, retaining wall footings and backfill


In conjunction with our concreting subcontractor, Shamrock Civil created a formwork design that enabled faster stripping and forming of the planter diamonds which reduced time and cost.
Shamrock Civil developed a revised planter design in conjunction with ADCO Constructions to eliminate the requirement of the strata vault system which resulted in cost savings to our client.