Darwin's Transport Week: Port Expansion Contracts Awarded, Berrimah Road Works Begin

The Territory government awarded a $47 million contract Thursday for the next stage of the Darwin Marine Supply Base expansion at East Arm Wharf, while crews broke ground on the long-delayed Berrimah Road upgrade — two milestones that mark a genuine shift in the pace of infrastructure delivery across the greater Darwin area.

The timing is not accidental. Defence investment tied to the US Marine Rotation Force at Robertson Barracks and the broader AUKUS build-up has created urgent pressure on Darwin's logistics spine. East Arm Wharf handles the bulk of the Territory's freight and is the primary supply point for offshore gas platforms in the Timor Sea; congestion there has been a running complaint from operators for the better part of three years.

East Arm Expansion and What It Means for the Port Precinct

The contract, awarded to a joint venture between Daracon Group and a Darwin-based civil contractor, covers construction of a new 180-metre berth and associated laydown area on the northern edge of the existing wharf precinct. Works are scheduled to run through to late 2028. The NT Ports Corporation confirmed the berth is designed to handle vessels up to 200 metres, which is roughly the class of ship currently being turned away or forced to anchor in Darwin Harbour during peak periods.

The project sits inside the East Arm Logistics Precinct, an industrial zone that also accommodates Vopak's fuel storage terminal and the Kallis & Sons seafood operations. The expanded berth will sit approximately 600 metres east of the current heavy-lift pad, according to project documentation lodged with the NT Environment Protection Authority last month.

Separately, the federal Department of Infrastructure confirmed this week that $12.8 million in Commonwealth funding originally allocated under the 2024-25 Northern Australia Infrastructure Facility program will flow to the NT government by August 15, earmarked specifically for the Berrimah Road corridor works. That money had been in limbo since the federal election.

Berrimah Road: Finally Moving After Two Years of Delays

Earthworks started Monday on the Berrimah Road and Tiger Brennan Drive intersection upgrade, a project that has been on the Infrastructure NT forward works schedule since 2024 without progressing past design. The $31 million job involves widening Berrimah Road to six lanes between the Tivendale Road roundabout and the Stuart Highway overpass, and rebuilding the signalised intersection at Tiger Brennan Drive to reduce what traffic modelling describes as chronic afternoon peak failure.

That intersection currently operates at what engineers classify as Level of Service F during the evening peak — the lowest possible rating, meaning demand routinely exceeds capacity. The modelling, done by GHD for Infrastructure NT and published in March 2025, found average delays of more than four minutes per vehicle at that point. With the Winnellie and Berrimah industrial precincts expanding to accommodate defence supply chain businesses, those delays are projected to worsen significantly without intervention.

Construction is being managed by Fulton Hogan's Darwin office. The company has flagged lane closures on Berrimah Road between 7 pm and 5 am on weekday nights through to at least September, with the full intersection closure expected for two weekends in August. Drivers heading from the Stuart Highway toward the port or the CBD are being directed via Tivendale Road as an alternative during closure windows.

Residents in Berrimah and nearby Holtze have been notified through letterbox drops, and the Infrastructure NT project page was updated Tuesday with a revised traffic management map. Bus routes 4 and 8, which service the Casuarina and Palmerston corridors, will not be rerouted but may experience delays during closure weekends.

For anyone with freight, construction deliveries or port runs scheduled in the coming weeks, the practical reality is straightforward: check the Infrastructure NT website before heading to East Arm, budget extra time on Berrimah Road after 5 pm, and expect conditions to remain disrupted through at least the end of the dry season. Both projects are due for progress updates at the next NT Legislative Assembly estimates hearings, currently scheduled for late August.