Foreshore
Onehunga's shore is heavily modified by human use. The old volcanic basin that used to link to the Manukau Harbour was filled in, with shorelines reclaimed and straightened for human use (Port of Onehunga, industrial uses and sports fields). The New Zealand State Highway 20 extension further disrupted Onehunga's connection to the shore in the 1970s.
This loss of amenity and space was one of the major complaints of local groups during negotiations over further motorway widening connected to the Mangere Bridge duplication. Proponents of a restored beach eventually won a $18 million commitment from Transit New Zealand (now New Zealand Transport Agency), which was topped up by a further $10 million from Auckland City Council. The sum is to fund a large-scale new shoreline west of the motorway, connected to downtown Onehunga with new pedestrian/cyclebridges, and creating 11ha of new beach and headland landscape. Three designs out of seven initial competitors have been shortlisted for further work as of late 2009, and it is hoped to complete the restoration of the foreshore by mid 2014.
In mid 2011, the plans for the restoration works were clarified further, and provided for public comment, setting out a 6.4 hectare reclamation area with sanded beaches, new green open space and several new headlands. The area is to receive a new boat ramp, and walk and cycleways including a new walking and cycling bridge over the motorway to Onehunga. Construction has started on 19 November 2012.
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