Wawata Estate

Wawata Estate Subdivision

CB Civil was elected by the principal as main contractor to undertake this turn key land development project. The site encompasses 38 hectares of land subdivision on Waiheke Island, Auckland, offering a stunning 180-degree backdrop of the Hauraki Gulf.

Key Project Statistics

• 30,000m3 earthworks
• 4,300m of stormwater drainage (sizes from 100 – 600 dia) 
• 1,600m directionally drilled drainage 150 dia PE
• 1,100m retaining walls 1m to 4m high – retaining walls are a mix of timber soldier with lagging, bored steel soldiers with timber lagging. 
• 1,300m gabion barriers – these act as both a pavement retaining structure and longitudinal drainage structure.
• 2,700m utility trenches
• 4km pavement and roading – controlled fill/ MSE walls to subgrade, metal base construction and insitu concrete pavement/ surface
• 1,100m 11kv ducting directionally drilled

By fostering collaboration between the client and design team, CB Civil commenced physical work before finalising the building consent design. This proactive approach expedited the project by an entire earthworks season compared to traditional build-only methods. CB Civil self-performed all on-site operations, mobilizing approximately 40 staff members for the project.