Demolition gets go ahead to expand Portsmouth International Port.
A redundant 110 year old jetty that currently prevents larger ships from using Portsmouth International Port is to be demolished as part of a £5 million pound investment in the Port’s future.
The disused structure, known as the “Floating Dock Jetty”, is situated at the eastern end of the Floating Dock Jetty. It will be demolished by the UK subsidiary of an experienced leading European marine contractor.
Herbosch-Kiere was chosen after a competitive tender process. The company starts work to remove the jetty in September, with completion of the task expected by the end of the year. Engineers will have to use specialist equipment to remove the jetty, which was built in 1906.
Despite its name, the jetty is anything but floating. It is constructed of deep-set cast iron piles that are 12 feet in diameter. Each is filled with concrete and has a heavy deck of steel and concrete placed on top.
Engineers from Herbosch-Kiere will start by cutting the deck into sections. Each element that is removed will be broken down for recycling. A large floating crane will then be used to remove the piles that form the jetty’s legs. When the structure has been removed the seabed will be dredged to the navigational level that is nine metres below chart datum.
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