ADANI has finally given the go-ahead to the first stage of the $US16 billion Carmichael megamine paving the way for thousands of jobs in central Queensland.

After more than six years of fighting its way through the approval process Adani also announced the mine development deal with Downer Mining and rail construction will be done by Aecom, which will base about 70 people in Townsville.

"I am proud to announce the project has final investment decision approval which marks the official start of one of the largest single Infrastructure - and job creating - developments in Australia's recent history," Mr Adani said.

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