Nebenbahn
Passenger services between Auckland and Onehunga ran until April 1973. The Onehunga Branch line between Penrose and Onehunga then served local industries until it was mothballed. A campaign to reopen the branch line was launched in mid-2002. On 13 March 2007, the Government announced that it had given approval to spend $10 million on reopening the branch line for passengers and freight.