Field investigations for the Terrigal Drive upgrade begin on 20 July and run for about two months. Transport for NSW is carrying out the work on and around Terrigal Drive between Chetwynd Road and Serpentine Road at Erina, to inform future road planning; the update was announced on 8 July by the federal Member for Robertson, Dr Gordon Reid. Transport for NSW procured the scoping work through a traffic-modelling contract awarded to Arcadis in February 2026 and running to the end of October, per the NSW Government’s tender record.
What to expect on the road
Motorists will see Transport for NSW workers and vehicles along the corridor intermittently, Monday to Friday, with work during the day and the evening. The investigations will involve:
- lane closures and reduced speed limits
- footpath closures
- detours
The announced window is roughly 20 July to late September. Transport for NSW runs a project email list for updates, at projects@transport.nsw.gov.au.
Survey pegs, not shovels
This is the step where a headline number starts becoming a design. The upgrade is jointly funded: $115 million was committed by the federal government and confirmed in its 2025-26 Budget infrastructure program, and the NSW Government’s June 2026 Budget added $108.2 million to continue planning the upgrade. What that money buys has not been set. Dr Reid said: “Transport for NSW will commence field investigation works to determine the scope of the project.” In other words, the two months of measuring, testing and surveying is what defines the upgrade, and construction timing sits on the far side of that scoping and design work. Transport for NSW has not yet published a dedicated project page for the current upgrade.
“Terrigal Drive is a major road corridor for residents living in the surrounding communities, as well as for visitors to the Central Coast,” Dr Reid said.
Why this corridor matters
Terrigal Drive is the main route between the Central Coast Highway at Erina and the Coast’s busiest beach town, and the investigation section passes Erina Fair, the region’s biggest shopping centre, which since December also hosts the Coast’s third Medicare Urgent Care Clinic at 620-658 Terrigal Drive. The corridor carries commuters, shoppers, patients and beach traffic through the same few roundabouts.
It also fits a wider pattern: public money is now active on three Coast road jobs at once, this one, the $1.6 million Black Spot fix on Woy Woy Road, and the local roads funding council lists alongside its $550 million advocacy wishlist. The Terrigal Drive project is the largest of the three by an order of magnitude, and the only one still without a defined scope.