Recent resurfacing and corrective maintenance at Mona Vale have been followed by a broader investigation into whether ageing sections of Pittwater Road require more substantial treatment.
More than 22,000 square metres of Pittwater Road was resurfaced during the previous financial year, including sections at Mona Vale and Collaroy, Roads Minister Jenny Aitchison told NSW Parliament on 23 September. Corrective maintenance was also completed at Mona Vale, Warriewood and Narrabeen.
Northern end has already seen repair work
Mona Vale sits at the northern end of the state-managed section of Pittwater Road running towards Manly. The route south carries substantial general traffic and forms a key public transport corridor through the Northern Beaches.
Attention has now shifted from surface repairs alone to the condition of older rigid concrete pavement. Engineers are assessing whether uneven sections can be treated by smoothing or stabilisation, or whether some slabs may require replacement.
Why resurfacing may not be enough
Pittwater Road has undergone repeated maintenance, resurfacing and localised repairs, but older sections built with rigid concrete pavement pose a different engineering challenge.
Aitchison told Parliament that conventional asphalt resurfacing might not provide a lasting solution where unevenness originates in the concrete structure below. Investigations and planning for longer-term repairs have therefore begun.
Laser surveys and ground-penetrating radar have already been used to examine the pavement. Further structural testing will help determine whether individual sections need diamond grinding, smoothing, joint repairs, slab stabilisation or jacking, targeted transition treatments, or complete replacement with new concrete or asphalt.
No final treatment has yet been selected for the concrete pavement under investigation. The approach will depend on what engineers find when the structural information is assessed.
Thousands of repairs across state roads
Maintenance on the Northern Beaches road network has continued while the investigation proceeds.
Between 1 January 2025 and 22 June 2026, ConnectSydney completed 1,118 repair activities on contracted State roads within the Northern Beaches local government area, according to the minister. More than 22,000 square metres of Pittwater Road was resurfaced during the previous financial year.
Earlier parliamentary records also show that Pittwater Road has required regular attention. A NSW Government response recorded 251 maintenance activities along Pittwater Road during 2023.
ConnectSydney conducts monthly inspections, while maintenance is undertaken reactively in response to identified defects and customer reports rather than according to a fixed works schedule.
Northern Beaches Council identifies Pittwater Road between Mona Vale and Manly as a NSW Government-managed road, with the State responsible for its maintenance.
A major Northern Beaches transport route
Pittwater Road carries substantial road and public transport movements between major Northern Beaches centres.
Transport planning documents have previously put traffic volumes on sections of the corridor at about 40,000 to 60,000 vehicles a day. Pittwater Road also carries much of the B-Line route through centres including Brookvale, Dee Why, Narrabeen and Warriewood towards Mona Vale.
Regan raised the road’s uneven condition in Parliament after lobbying for longer-term improvements to Pittwater Road and the wider A8 corridor. Aitchison said the government had already begun work but acknowledged that the ageing concrete pavement required further investigation before a lasting treatment could be chosen.
No timetable for wholesale slab replacement was announced in the minister’s 23 September response. Planned resurfacing and corrective works will proceed while engineers assess which treatments are appropriate for the older concrete pavement.
Published 8-Oct-2026
