First Caisson Construction

The Aberdeen Harbour Expansion Project (AHEP) which is the construction project that will deliver Aberdeen Harbour Board's £350 million, state-of-the-art South Harbour in 2020, has surpassed a number of major milestones in the month of March, including the construction of the first Caisson Unit.

The construction of the first of the 50 metre long caisson units marks an important milestone for the South Harbour Construction Project. The concrete units, which are 17 metres wide, and 16 metres high, will be floated into position this summer, and will start to form the basic 'building blocks' of the closed-quay sections of the new facility - representing the first phase of quay construction for the project.

The size of the units has dicatated that they be manufactured in La Coruna in North West Spain, where a large scale manufacturing process has been established within the port. The completed units will be transported to Scotland in the coming months.

The benefits of caisson use are several. This form of modular construction not only creates quay which can accommodate far heavier loads than conventional construction methods but, due to the units being hollow chambers, use considerably less concrete in their fabrication.

“We are very pleased to announce that the fist caisson has rolled off what is an incredibly large-scale and sophisticated production line in La Coruna" said a Dragaos spokesperson. "The benefits of this very modern form of construction are both operational and environmental, whilst the commencement of their fabrication marks another important milestone for the project.”

Once positioned within the new harbour, the units will be filled with a granular material, which will cause the units to sink into their prescribed locations on the harbour floor, locking them in place. Forms of open and closed quay construction will take place within the project until 2020.

First Caisson Construction
First Caisson Construction