SH76 Brougham Street upgrade

Stage One - Brougham Street Bridge

2 October 2025

Brougham Street Bridge timeline

This timeline shows when key parts of the Brougham Street Bridge construction are expected to happen. However, dates may shift depending on things like weather and unexpected site conditions.

Work on the Brougham Street bridge kicked off in August 2025. The first phase includes relocating services, installing water and wastewater pipes, and clearing the site to get things ready.

Work is also just beginning to install a temporary pedestrian crossing on Brougham Street to keep people moving safely while bridge construction continues.

New pedestrian crossing location

The new crossing will go straight across the road, rather than the current staggered layout. It will stay in the same location on the Simeon Street side but will be shifted on the Collins Street side to avoid the construction zone. People using the crossing may notice longer wait times at the lights, as the signal timing needs to be adjusted to allow for the straight-across setup.

In December 2025, piling will get underway. This involves drilling deep foundations to support the bridge structure. The piles will be almost 30m deep and 1.5m wide and will be drilled with a specialist pile drilling rig. We have chosen to use this method as it minimises noise and vibration, so we create less disruption for our neighbours.

By February 2026, the crew will be working on the columns and piers, these are the vertical supports above the ground that hold up the bridge.

Bridge lift

Come May 2026, the main span of the bridge will be lifted into place over Brougham Street. This will be one of the key milestones in the project. The bridge will be built off site and then delivered to site on a truck. Cranes will then lift the bridge onto the piers overnight.

in August 2026, ramps will also be lifted into position and then in September, decks will be built on those ramps to complete the walking and cycling pathway.

Final touches

October 2026 will see the installation of balustrades and privacy screens, adding safety and a bit of visual separation for nearby properties.

The bridge is expected to open to the public in November 2026, providing a new, safer way to cross Brougham Street.

Finally, in January 2027, landscaping and finishing touches will wrap up Stage One of the project.

More information

For more information on the SH76 Brougham Street upgrade project, contact us at bm@nzta.govt.nz

Visit our website www.nzta.govt.nz/sh76-brougham-upgrade