Past projectsMarine – Milford Sound fresh water basin reserve2012 – Milford Sound BRIEF
The Milford Sound Freshwater Basin Redevelopment was a highly complex job with many resource and environmental conditions to meet due to the works being undertaken in a world renowned heritage park.
The first hurdle to overcome was the establishment of the plant and materials to the site. The project itself involved the removal of two existing berths and realigning them, along with the construction of one new berth. These berths each consisted of six to eight 600mm diameter piles. The driving of these piles was conducted from a barge as this was the only suitable method to undertake this. 900mm diameter breasting piles were also driven to separate the berths.
Whilst the piling works were happening concurrently the new breakwater was being constructed which is best depicted in the image. With the harbour extension being complete there was 25,000m3 to be dredged from the harbour to get to the design depth for the new boats that are now operating in Milford Sound. The dredging now loaded into the bottom dump and dispose in an authorised dump site within Milford Sound itself.
Also during the process of the above the existing promenade was extended by 60 metres. Involved in this was driving concrete piles and an insitu capping beam and concrete retaining wall. This extension as well as the existing promenade had new hardwood decking installed, approx 8,000 metres.
The job was completed to a very high standard within budget and caused no effect to the day to day operations of the Milford visitor terminal and boat movements during this time.
|
