About this project

Objectives

The project objectives are:

To support sustainable growth and development of business and residential centres adjacent to SH16 as identified in strategic Auckland planning documents
To enable completion of the Western Ring Route
To improve freight movements through west Auckland
To improve public transport along SH16
To improve the safety, reliability, capacity and efficiency of SH16
To support wider traffic management techniques including Travel Demand Management that will help sustain the benefits of the project.

Key project features:

In collaboration with Waitakere and Auckland City Councils, NZTA is proposing to:

raise the causeway and the adjacent cycleway to eliminate flooding
create provision for future bus lanes on the motorway shoulders
improve Te Atatu, Lincoln and Royal Road interchanges
improve pedestrian and cyclist access across the motorway
improve safety, traffic flow and journey times by adding an extra motorway lane in both directions.

Much of SH16 is on a causeway over the water that has gradually sunk since it was first built leading to increased flooding. More land will need to be reclaimed to raise the causeway. Reclamation is proposed from Waterview to Rosebank Peninsula and on the seaward side of Rosebank Peninsula from Rosebank Road off-ramp to the Whau River. The bridge over the Whau River will be widened to support the new lanes.

These improvements are the first stage of proposed work to improve safety, capacity and traffic flow along the Northwestern Motorway (SH16) as part of the Western Ring Route.