Confidential plans for Australia's new Badgerys Creek airport have revealed that the construction of the airport, which might double the capacity of the Sydney airport, will be started next year.
The project which will require moving 100 million cubic metres of earth for building the airport is said to be the country's biggest excavation project.
According to the initial plans obtained by The Daily Telegraph, the 100 million cubic metres of excavated site will span across 20 square kilometers, making it bigger than US' JFK airport which is roughly spread across 19.9 square kilometers.
The map shows that planning has reached a detailed phase which include design and location of high voltage power lines, drainage and retention ponds, terminal space, commercial zones and a separate cargo and freight terminal.
The plans further point that the expected capacity of the airport by 2050 will be around 80 million passengers, double the capacity of the existing Sydney Airport at Mascot.
A single east-west runway of 3700m, a small domestic and international terminal and a cargo terminal are part of the stage one construction on the site that has been marked 'for cost purposes only' in the map. The runway is estimated to accommodate the A380, reported The Daily Telegraph.
A 3km transport tunnel for an underground rail link to the airport in future is also provisioned.
The first stage of construction will see an estimated investment of $4bn with a capacity for ten million passengers a year and is set for completion in the next eight years.
The Australian government had confirmed construction in April last year when it said it had zeroed in on Badgerys Creek as the site for the new airport. The government is aiming to commence construction of the airport from 2016.