A NSW Government website

Replacement of the Nielsen Park seawall

The National Parks and Wildlife Service has replaced the concrete seawall at Nielsen Park, part of the Sydney Harbour National Park.

 

Shark Beach reopened on 12 December 2024

The replacement of the new seawall is now complete. Shark Beach reopened to visitors on Thursday 12 December 2024.

The Sydney Restaurant Group have completed renovations to the historic Nielsen Park Kiosk, the Halbert Pavilion and the Swimming and Life Saving Club and these venues have reopened.

National Parks and Wildlife Service demolished the old 1930s seawall as it was badly damaged by waves during a large storm in 2016 and had reached the end of its serviceable life. The new seawall is more capable of withstanding adverse weather conditions and sea level rise, while improving accessibility to the beach. This once-in-a-lifetime project conserves the site's sensitive natural, cultural and historic heritage significance while improving the structure to meet visitor and operational needs.

National Parks and Wildlife Service acknowledges that the project took far longer than originally anticipated, with a range of significant issues impacting this complex project. We apologise for the loss of access to the site during the construction period and thank the community for their patience and understanding. We, along with NSW Public Works and the contractor, worked hard to get the site open as soon as possible while still ensuring the highest standards in a challenging environment.

Project stages and timeframes

StageStatus
Site investigation, analysis and development of concept plans (PDF 4.8MB)Completed 2020
Development application submitted to Woollahra Council on 30 June 2020Approved by the Sydney East Regional Planning Panel, 18 February 2021
Heritage Act Section 60 approval via Heritage NSWApproved 16 April 2021
Development of detailed designs and appointment of construction contractorCompleted 2021
Procurement of construction contractorCompleted 2021
Demolition of the concrete seawallUnderway from 1 March 2022
Engagement of new construction contractorApril 2023
Construction of the seawallRecommenced May 2023
Seawall complete and Shark Beach reopened12 December 2024 

Community engagement

Stakeholders, visitors and nearby residents were kept informed of this project as it developed. Updates were made available from this project webpage and by project newsletters.

Protecting park values

In accordance with NSW planning legislation, we carried out a rigorous environmental assessment of the site with input from specialists in landscape architecture, archaeology, heritage, engineering and coastal management. The project is consistent with the Sydney Harbour National Park Plan of Management 2012 and the Nielsen Park Conservation Management Plan 2013.

The National Parks and Wildlife Service committed to delivering this project whilst ensuring the natural and cultural values of the park were protected.

Project facts

Hazardous materials

During the demolition of the old concrete seawall, asbestos was found in the fill under the concrete seawall. As the seawall was built around the 1930s, it is not unusual to find this type of material which had been used in construction projects since 1921.

The site was immediately secured and an Environmental Hygienist attended. An Asbestos Management Plan was implemented and this hazardous material was removed in April 2022. This was undertaken by specialist teams with dust mitigation measures and air monitoring to ensure that fibres did not become airborne.

All trucks leaving the site were sealed, and the material was disposed at a licensed off-site facility. Testing of the site was undertaken to ensure all hazardous material was removed and monitoring continued throughout the project.

Accessibility

An improved vehicle ramp at the east end of Shark Beach has been built to allow access to the beach for park operations such as the annual removal of the shark net. Visitors will also be able to use this ramp for launching kayaks, paddleboards and the like.

A new pedestrian ramp improves accessibility to the beach.

Additional stairs which are access compliant have also been installed along the length of the seawall.

Additional options such as handrails or pathways onto the beach were considered, however, Shark Beach regularly experiences damaging storm surges. These storm surges can result in significant sand movement and undermine infrastructure. Installation of permanent infrastructure on the beach itself was therefore not considered feasible. We will continue to investigate and review accessibility improvements in the park.

Promenade trees

New, mature trees have been planted as part of this project, including an additional 5 trees along the beach front. This includes 2 Sydney red gum (Angophora costata), 8 Tuckeroo (Cupaniopsis anacardioides), 4 Coastal banksia (Banksia integrifolia) and 3 Port Jackson mallee (Eucalyptus obstans).

Beachfront improvements

The project team carefully considered the materiality and character of Shark Beach. The seawall itself is approximately 0.5 m higher at the promenade level, while the structure extends deeper below the beach surface to reduce the risk of gaps resulting from the movement of sand during storm events. Additionally, the design of the new seawall incorporates the following:

  • modified bleachers profile with wave deflectors built in to manage storm events
  • stairs, ramps and level changes are access compliant
  • the landscape amenity has been improved with increased lawn areas and more shade trees.
Beach replenishment

During construction the full height and width of the new concrete seawall was exposed and visible along much of the beach. Over time, natural wave and tidal action will wash sand up against the new seawall, covering one or two of the lower bleacher levels and restoring the width of the beach. 

As before, the beach levels will vary as natural wave action removes and replenishes the sand. The new structure is 500 mm higher than the previous seawall, and the width of the promenade path has been slightly reduced, which will increase the amount of beach space available for visitors.

Refurbishment of historic buildings

Upgrades to the dressing pavilion have been carried out by the NSW National Parks and Wildlife Service. This includes internal and external painting, building repairs and improvements to the shower facilities.

Upgrades and renovations to the historic kiosk, surf club and Halbert Pavilion have been completed.

A high view of a small picturesque bay with a freshly paved wall of concrete bleachers, young saplings lining a new paved promenade along the top of the bleachers and some people in hi-vis workwear about.

The Nielsen Park seawall is complete

Project updates

Project complete as Shark Beach reopens...
A photograph of a small bay on a bleary day viewed from a far corner of its narrow sandy beach, with fresh concrete bleachers visible on one side and a thick dark line of foliage at the far side

Contact us

NPWS Sydney South Area

Email: [email protected]