Bam Nuttall has given details of the new £85M 75,000 m2 concrete deck extension it is to build at London City Airport.
The deal was first reported in New Civil Engineer last year and is part of the airport’s £480M development programme. It will support eight aircraft stands, a parallel taxiway and a passenger terminal extension.
Bam will extend the airport’s concrete deck out over the King George V Dock supported by over 1,000 concrete piles with steel casings, each around 20m long.
Bam said the new deck will consist of precast reinforced concrete planks with a reinforced concrete topping spanning onto precast concrete beams supported on more than 1,000 large diameter bored concrete piles with steel casings in the dock bed (typically spaced at 10m centres). Average water depth is around 10m with the average pile length being approximately 20m.
Works on site will start this spring and finish in early 2020. Before work starts, an unexploded ordnance (UXO) survey will be completed. The survey recently found a 500kg Second World War bomb, which was that was safely disposed of by the Royal Navy.
London City Airport chief development officer Peter Adams said: “The contract is the first big step forward in the airport’s development programme, essentially creating new land that will provide the base upon which we will build the majority of the transformational infrastructure, including the extended terminal building and additional aircraft stands.
“Bam has proven expertise and experience in these techniques and we are really pleased they are on board to deliver this project alongside the overall delivery partner, Bechtel.”