Drainage

Expertise in project drainage includes both standard and project specific drainage designs for stormwater and sewerage.

Our recent experience includes the innovative drainage plans at the Pegasus Town Development, Christchurch. The sites high ground water coupled with sand soils required extensive drainage including a swale stormwater treatment system, where all stormwater enters road side swales and is discharged to ground, and large concrete storm water treatment devices, constructed 1.6-2m below the water table involving extensive dewatering and sheet piling.

Other recent projects requiring drainage include roading, land development and infrastructure work indicative of the breadth of our experience and aptitude.