Ti Tahi Flood Mitigation

This project saw the construction of a box culvert underpass/ drainage channel across Ostend Road on Waiheke Island. The project also required relocation of HV services, significant temporary works, earthworks and road reinstatement. Contract Manager Greg Wichman, oversaw efficient delivery to programme, strong implementation of environmental controls and health and safety processes and the provision of proactive and successful stakeholder management to underpin project success

The project required extensive environmental management due to its construction in a coastal and wetland environment. Additionally, works involved clay capping and earthworks to an existing landfill adjacent to the flood channel works. All works were completed successfully to our ISO:14001 Environmental Management System. We prepared management plans to comply with TP90 (now GD05) standard. Environmental controls included marine silt curtains, flood channel bunding, and clean water over-pumping. Regular audits were undertaken on the project with Auckland Council with CB Civil achieving full compliance.