Pine Harbour Marina

Project Sheet

Location: Auckland, New Zealand

Year: 1997

Project Type(s): Historical dredged material placement

Project Description: In 1997, maintenance material removed from the Pine Harbour Marina channel was placed in a thin layer over an area of similar sediment character in the adjacent embayment. The granting authorities required a substantial monitoring program for the dredged and disposal areas. The main objectives of the monitoring efforts were to confirm that “the dredging activity does not cause the release of sediment into the surrounding environment at levels in excess of those naturally experienced”, and that “the marine disposal activity does not cause significant adverse effects upon the benthic organisms present in the embayment or cause the release of sediment into the environment surrounding the disposal site at levels in excess of those naturally experienced”. This project focused on the monitoring aspects of the of the dredged and disposal areas before, during and after each annual dredging operation.