Mr Key confirmed that Government would back Auckland's three top transport priorities - the City Rail Link, another Waitemata Harbour crossing, and the Auckland Manukau Eastern Transport Initiative (AMETI), which includes the East-West Link.
Auckland Super City Mayor Len Brown said "This is Auckland, the government and our country arm in arm to deliver the most important infrastructural changes in decades.
Opinion
Auckland is likely to get a new Waitemata harbour crossing as part of a transport plan expected to be revealed today.
It is not known what the crossing will be, or when it will be started.
Two options have been floated - tunnels near the existing harbour bridge or anotherbridge.
Waitemata and Gulf councillor Mike Lee said that in 2009 the Transport Agency and Kiwirail proposed a 2029 start date for a road-rail tunnel.
What is the best option for a second harbour crossing for Auckland? Here is the latest selection of Your Views:
