Port moving East
The South Island’s growing economy means Lyttelton Port will need more land to handle increasing volumes of export and import trade. The key to greater freight capacity is a new container terminal at Te Awaparahi Bay.
Not only will this new terminal handle the future growth in container freight volumes, it will also allow some of the general cargo operations to move from the Inner Harbour onto the current Container Terminal at Cashin Quay. This moving of Port operations to the east underpins the Port’s ongoing redevelopment.
The first 10ha of the reclamation has already been completed and we are about to embark on the next stage, creating an additional 24ha. The work will include quarrying in Gollans Bay, dredging part of the reclamation footprint, the land reclamation itself and the construction of a new wharf.
What is involved?
The reclamation will be created by placing acceptable and suitable fill material in Te Awaparahi Bay until the land reaches the desired level.
Settlement of the new land is a major issue due to the soft seabed in the Harbour. To reduce this settlement time, the softer material from under the edge of the reclamation will be dredged out.
Our quarry at Gollans Bay will provide most of the fill material, with less than five per cent being building demolition rubble.
Fill material will be placed from split hopper barges, or alternatively by 'end-tipping' from land
We have to wait about two years for the new land to settle. Once complete, we will start building a new wharf, which will be a similar process to the construction of the Cruise Berth.
Reclaiming land can have effects on the environment, both during construction and in the longer term. We spent a lot of time with experts investigating and developing measures to mitigate potential effects. We are confident the construction effects can be easily managed, and that longer-term changes to the harbour will be undetectable.
We’ve also gained over six years experience constructing the first 10ha reclamation, which has helped us to understand how to best build the next stage.
During dredging we are also continuously monitoring the water quality, and you can view the data in real time here.