The Upper Harbour Bridge (also called the Greenhithe Bridge) is a motorway bridge in west Auckland, New Zealand. It is technically two bridges, spanning the Upper Waitematā Harbour, and connecting Hobsonville (in West Auckland) and Greenhithe (on the North Shore). It is an important connection for State Highway 18, and became even more important as a component of the Western Ring Route when the route was completed on 2 July 2017.[1]